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Testosterone Therapy in
Prostate Cancer - Curr Opin Urol. 2022;32(6):598-606 -
"The use of TTh in hypongonadal men with a localized PCa
has been shown to have positive clinical outcomes without increasing the rate of
disease progression or recurrence. Further research, in a randomized controlled
setting, is warranted"
-
Deletion of monoamine
oxidase A in a prostate cancer model enhances anti-tumor immunity through
reduced immune suppression - Biochem Biophys Res Commun 2022 Oct 6 -
"We have previously shown that monoamine oxidase A (MAO
A) mediates prostate cancer growth and metastasis. Further, MAO A/Pten double
knockout (DKO) mice were generated and demonstrated that the deletion of MAO A
delayed prostate tumor development in the Pten knockout mouse model of prostate
adenocarcinoma ... Thus, MAO A inhibitor may alleviate immune suppression,
increase the antitumor immune response and be used for cancer immunotherapy"
- Note: Deprenyl is an old time anti-aging drug but it's a MOQ B inhibitor. I
don't know of any MAO A inhibitors.
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Metformin, Testosterone
Replacement Linked to Reduced Cancer Risk - Medscape, 8/26/22 -
"metformin and testosterone replacement therapy were
independently and jointly associated with a reduced incidence of prostate
cancer, with the greatest reduction with the combination of the two (joint odds
ratio [OR], 0.44) ... The two drugs were also inversely associated with a high
grade at prostate cancer diagnosis (joint OR, 0.36) and advanced cancer stage
(joint OR, 0.47), after multivariate adjustment for factors including age,
race/ethnicity, hypogonadism, hypertension, diabetes, insulin use, muscular
wasting, and other factors ... Metformin and testosterone replacement therapy
were also independently and in combination inversely associated with the
incidence of colorectal cancers (joint OR, 0.47); however, the associations with
higher grade and advanced stage were not consistent, the authors note" -
Note: Good luck with that. Testosterone prescriptions are another one that's
like getting a prescription for cocaine. Doctors seem locked in a previous era.
See
metformin at ReliableRX.
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The association between
dairy products consumption and prostate cancer risk: A systematic review and
meta-analysis - Br J Nutr. 2022 Aug 10 - "We
performed subgroup analyses stratified by dairy type, prostate cancer type,
follow-up years, treatment era, collection times, adjustment for confounders,
and geographic location. In the subgroup analysis stratified by prostate cancer
type, the pooled RRs were 0.98 (95% CI: 0.94-1.03) in the advanced group, 1.10
(95% CI: 0.98-1.24) in the non-advanced group and 0.92 (95% CI: 0.84-1.00) in
the fatal group. In dose-response analysis, a positive association for the risk
of prostate cancer was observed for total dairy products 400 g/d (RR: 1.02; 95%
CI: 1.00, 1.03), total milk 200 g/d (RR: 1.02; 95% CI: 1.01, 1.03), cheese 40
g/d (RR: 1.01; 95% CI: 1.00, 1.03), and butter 50 g/d (RR: 1.03; 95% CI: 1.01,
1.05). A decreased risk was observed for the intake of whole milk 100 g/d (RR:
0.97; 95% CI: 0.96, 0.99)"
-
Curcumol Inhibits the
Development of Prostate Cancer by miR-125a/STAT3 Axis - Evid Based
Complement Alternat Med 2022 Jul 30 - "This study aimed
to learn the antineoplastic activity of curcumol (Cur) on prostate cancer (PCa)
and elucidate its potential molecular mechanism ... Cur inhibited the
development of PCa by miR-125a/STAT3 axis. This may provide a potential agent
for treating PCa" - See curcumin at Amazon.com.
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Quercetin in Tonglong Qibi
decoction ameliorates testosterone-induced benign prostatic hyperplasia in rats
by regulating Nrf2 signalling pathways and oxidative stress - Andrologia
2022 Jun 20 - "Benign prostatic hyperplasia (BPH) is a
common urological disease in older males. Existing pharmacotherapy shows several
side effects, and the exploration of new therapeutic strategies is of high
significance. Tonglong Qibi (TQ) decoction was proved to ameliorate BPH, while
the underlying mechanisms are still unclear. In the current study, we explored
the anti-BPH effects of TQ in vivo and identified its main therapeutic component
and the underlying mechanisms in vitro. We demonstrated that TQ mitigated BPH in
rats and showed no toxicity to the liver and reproductive system. Network
pharmacology identified quercetin as the main component in TQ treating BPH.
Quercetin reduced proliferation, oxidative stress, and increased Nrf2 expression
in hyperplastic prostate epithelial cells. These findings indicate that
quercetin in TQ alleviates BPH via inhibiting oxidative stress and activating
the Nrf2 signalling pathway" - See quercetin at Amazon.com.
-
Dairy foods, calcium
intakes, and risk of incident prostate cancer in Adventist Health Study-2 -
Am J Clin Nutr 2022 Jun 8 - "Men with higher intake of
dairy foods, but not nondairy calcium, had a higher risk of prostate cancer
compared with men having lower intakes. Associations were nonlinear, suggesting
greatest increases in risk at relatively low doses"
-
Circulating free
testosterone and risk of aggressive prostate cancer: prospective and Mendelian
randomization analyses in international consortia - Int J Cancer 2022 May 17
- "In blood-based analyses there was no association with
aggressive disease overall, but there was heterogeneity by age at blood
collection (OR for men aged <60 years 1.14, CI=1.02-1.28; Phet =0.0003: inverse
association for older ages). Associations for free testosterone were positive
for overall prostate cancer (MR:1.20,1.08-1.34; blood-based:1.03,1.01-1.05) and
early-onset prostate cancer (MR:1.37,1.09-1.73; blood-based:1.08,0.98-1.19).
SHBG and total testosterone were inversely associated with overall prostate
cancer in blood-based analyses, with null associations in MR analysis. Our
results support free testosterone, rather than total testosterone, in the
development of prostate cancer, including aggressive subgroups"
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Adherence to a
cholesterol-lowering diet and the risk of prostate cancer - Food Funct 2022
May 6 - "The score was derived from seven dietary
indicators which have been reported to lower cholesterol levels: high intake of
non-cellulosic polysaccharides (viscous fibres), monounsaturated fatty acids,
legumes, seeds/corn oil; low intake of saturated fatty acids, dietary
cholesterol, and glycaemic index. Odds ratios (ORs) and corresponding confidence
intervals (CIs) were calculated through the unconditional logistic regression
model. Although most of the dietary indicators alone were not significantly
associated with reduced PCa risk, men who fulfilled 5 to 7 dietary indicators
(187 cases and 281 controls) showed a 43% reduction in PCa risk compared to
those with 0 to 2 indicators (OR: 0.57"
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The relationship between the
gut microbiota, benign prostatic hyperplasia, and erectile dysfunction - Int
J Impot Res 2022 Apr 13 - "Microbiota is defined as the
group of commensal microorganisms that inhabit a specific human body site. The
composition of each individual's gastrointestinal microbiota is influenced by
several factors such as age, diet, lifestyle, and drug intake, but an increasing
number of studies have shown that the differences between a healthy microbiota
and a dysbiotic one can be related to different diseases such as benign
prostatic hyperplasia (BPH) and erectile dysfunction (ED) ... Gut microbiota
modifications can influence prostate health indirectly by the activation of the
immune system and the production of proinflammatory cytokines such as IL-17,
IL-23, TNF-alpha, and IFN-gamma, which are able to promote an inflammatory
state. Gut dysbiosis may lead to the onset of ED by the alteration of hormone
levels and metabolic profiles, the modulation of stress/anxiety-mediated sexual
dysfunction, the development of altered metabolic conditions such as obesity and
diabetes mellitus, and the development of hypertension. In conclusion, much
evidence suggests that the intestinal microbiota has an influence on various
pathologies including BPH and ED" - See
probiotic supplements at Amazon.com.
-
5-alpha reductase inhibitors
and prostate cancer mortality among men with regular access to screening and
health care - Cancer Epidemiol Biomarkers Prev 2022 Mar 4 -
"Men using 5-ARIs underwent more PSA testing, prostate
exams and biopsies. Over 20 years of follow-up, 509 men developed lethal disease
(metastases or prostate cancer death). Among men initially free from prostate
cancer, 5-ARI use was not associated with developing lethal disease (HR 1.02,
0.71-1.46), but was associated with reduced rates of overall and localized
disease (HR 0.71, 0.60-0.83). Among men diagnosed with prostate cancer, there
was no association between 5-ARI use and cancer-specific (HR 0.78, 0.48-1.27) or
overall survival (HR 0.88" - See
saw palmetto at Amazon.com.
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Hexanic Extract of Serenoa
repens (Permixon ®): A Review in Symptomatic Benign Prostatic Hyperplasia -
Drugs Aging 2022 Mar 3 - "The hexanic extract (HE) of
Serenoa repens (Permixon®) is indicated for the symptomatic treatment of benign
prostatic hyperplasia (BPH). The drug is the n-hexane lipidosterolic extract of
the American dwarf palm tree (also known as saw palmetto). The anti-inflammatory
activity of HE S. repens has been demonstrated in vitro, in vivo and in men with
prostatic inflammation. In randomized clinical trials, the efficacy of HE S.
repens was similar to that of an α-blocker in terms of improving voiding and
storage symptoms, increasing urinary flow rate and reducing prostate volume in
men with BPH. HE S. repens was also as effective as 5α-reductase inhibitors
and/or α-blockers at improving lower urinary tract symptoms (LUTS) and quality
of life (QOL) in real-world observational studies. HE S. repens was generally
well tolerated, with a lesser impact on male sexual function compared with other
available therapies. Thus, HE S. repens is a useful option for the treatment of
symptomatic BPH" - See
saw palmetto at Amazon.com.
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δ-Tocotrienol is the most
potent vitamin E form in inhibiting prostate cancer cell growth and inhibits
prostate carcinogenesis in Ptenp-/- mice - Cancer Prev Res (Phila) 2022 Feb
10 - "Vitamin E compounds, consisting of α, β, γ, and δ
forms of tocopherols and tocotrienols, display different cancer preventive
activities in experimental models. Tocotrienols may have higher potential for
clinical use due to their lower effective doses in laboratory studies ... We
found that δ-tocotrienol (δT3) was the most effective form in inhibiting cell
growth at equivalent doses. Because of this in vitro potency, δT3 was further
studied using prostate specific Pten-/- (Ptenp-/-) mice. We found that 0.05% δT3
in diet reduced prostate adenocarcinoma multiplicity by 32.7%, featuring
increased apoptosis and reduced cell proliferation. The inhibitory effect of
0.05% δT3 in diet was similar to that of 0.2% δ-tocopherol (δT) in diet reported
previously. Our further study on the δT3-induced transcriptome changes indicated
that δT3 inhibited genes in blood vessel development in the prostate of Ptenp-/-
mice, which was confirmed by immunohistochemistry. Together, our results
demonstrate that δT3 effectively inhibits the development of prostate
adenocarcinoma in Ptenp-/- mice, which involves inhibition of proliferation and
angiogenesis and promotion of apoptosis" - See
delta vitamin E at Amazon.com.
-
Dietary pterostilbene for
MTA1-targeted interception in high-risk premalignant prostate cancer -
Cancer Prev Res (Phila) 2021 Oct 21 - "mice fed with a
pterostilbene-supplemented diet exhibited more favorable histopathology with
decreased severity and number of PIN foci accompanied by reduced proliferation,
angiogenesis, and inflammation concomitant to reduction in MTA1 and
MTA1-associated CyclinD1, Notch2, and oncogenic miR-34a and miR-22 levels"
- See pterostilbene at Amazon.com and
iHerb.
-
Induction of apoptosis in
human hormone-refractory prostate cancer cell lines by using resveratrol in
combination with AT-101 - Andrologia 2021 Oct 11 - "The
aim of this study was to determine the appropriate doses of AT-101 and
resveratrol combination in the in vitro hormone-refractory prostate cancer (PC)
cell lines, in order to evaluate the cytotoxic and genotoxic effects of this
combination on the proliferation of cancer cells, namely PC-3, DU-145 and LNCAP
... While the combined use of resveratrol and AT-101 increased the expression of
markers in apoptotic cell pathways on cells, a decrease in the expression of
anti-apoptotic markers was detected (p ˂ 0.05). Combined applications of these
compounds showed an important synergism in the hormone-refractory PC cell lines,
and it was determined that after the post-translational modification, they were
significantly effective on the apoptotic pathway. These results have revealed
that the combination of resveratrol and AT-101 holds great expectation as a new
chemotherapeutic application in the treatment of human prostate cancer" -
See resveratrol products at Amazon.com and
resveratrol at iHerb.
-
Small-molecule BH3 mimetic and pan-Bcl-2 inhibitor AT-101
enhances the antitumor efficacy of cisplatin through
inhibition of APE1 repair and redox activity in
non-small-cell lung cancer - Drug Des Devel Ther. 2015;
9: 2887–2910 - "AT-101 is a BH3
mimetic and pan-Bcl-2 inhibitor that has shown potent
anticancer activity in non-small-cell lung cancer (NSCLC) in
murine models, but failed to show clinical efficacy when
used in combination with docetaxel in NSCLC patients"
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Rutin inhibits androgen
synthesis and metabolism in rat immature Leydig cells in vitro - Andrologia
2021 Aug 29 - "In the early stage of androgen-sensitive
prostate cancer, cancer cells require androgens to grow. Hormone therapy that
lowers androgen output or blocks androgen receptor can suppress the growth of
this type of prostate cancer. Rutin, a flavonoid derivative of many plants, has
numerous pharmacological effects ... In conclusion, rutin suppresses androgen
biosynthesis in Leydig cells through multiple mechanisms, thereby having
benefits for the treatment of androgen-sensitive prostate cancer" -
See rutin at Amazon.com and
rutin at iHerb.com.
-
Correlative Analysis of
Vitamin D and Omega-3 Fatty Acid Intake in Men on Active Surveillance for
Prostate Cancer - Urology 2021 Jun 15 - "Sixty-eight
patients with biopsy-proven NCCN very-low or low-risk prostate cancer were
enrolled in the prostate cancer nutrition and genetics clinic at the Cleveland
Clinic from July 2013-December 2019. Patients adhered to a specific dietary
regimen devoid of animal-based products and foods containing omega-6
polyunsaturated fatty acids (PUFAs). The supplement regimen consisted of:
Omega-3 PUFAs 720mg (three/day); curcumin 2000 mg/day; vitamin D3 dose titrated
to achieve serum level of 60 ng/ml; and vitamin B-complex 1000 mg (four times
weekly) ... Patients with higher initial vitamin D levels were twice as likely
to have a downward PSA trend (OR=2.04, 95% CI 1.04-4.01, p=0.04). Fifty-five
patients underwent follow-up biopsy, all showing no progression of disease.
Three patients had loose bowel movements that required omega-3 and or curcumin
dose adjustments" - See vitamin D at Amazon.com and
iHerb
and omega-3 supplements at Amazon.com and
iHerb.
-
Beetroot and leaf extracts
present protective effects against prostate cancer cells, inhibiting cell
proliferation, migration, and growth signaling pathways - Phytother Res 2021
Jun 16 - "Beet (Beta vulgaris L.) has high nutritional
value, containing bioactive compounds such as betalains and flavonoids.
Scientific evidence points to the use of these natural compounds in the
treatment of several types of cancer, such as prostate cancer, one of the main
causes of morbidity and mortality in men. Here, we compared beet roots and
leaves extracts, and their main compounds, apigenin, and betanin, respectively,
in DU-145 and PC-3 prostate cancer cell lines. Both cells presented the
proliferation decreased for beetroot and beet leaves extracts. The apigenin
treatment also reduced the proliferation of both cell lines. Regarding cell
migration, beet leaves extract was able to decrease the scratch area in both
cell lines, whereas apigenin affected only PC-3 cells' migration. In colony
formation assay, both extracts were effective in reducing the number of colonies
formed. Besides, the beet leaves extracts and apigenin presented strong
inhibition of growth-related signaling pathways in both cell lines, and the
beetroot extract and betanin presented effects only in DU-145 cells" -
See beet root powder at Amazon.com.
-
Dietary Carbohydrate Intake
Glycemic Index and Glycemic Load and the Risk of Prostate Cancer among Iranian
Men: A Case-Control Study - Nutr Cancer 2021 Jun 7 -
"The fully adjusted ORs for the top vs. the bottom quartile were 15.02 (P trend
= 0.004), 1.04 (P trend = 0.003), and 10.35 (P trend = 0.002) for carbohydrate
intake, GI and GL, respectively. Significant associations with prostate cancer
remained only among men with reduced fiber intake for carbohydrate intake, GI
and GL and among those had increased fiber intake for GI. These findings support
the hypothesis that diet with high carbohydrate, GI and GL enhance risk of
prostate cancer"
-
Beetroot and leaf extracts
present protective effects against prostate cancer cells, inhibiting cell
proliferation, migration, and growth signaling pathways - Phytother Res 2021
Jun 16 - "Beet (Beta vulgaris L.) has high nutritional
value, containing bioactive compounds such as betalains and flavonoids.
Scientific evidence points to the use of these natural compounds in the
treatment of several types of cancer, such as prostate cancer, one of the main
causes of morbidity and mortality in men ... This study reveals that beet
extracts have important anti-cancer effects against prostate cancer cells"
- See beet root capsules at Amazon.com.
-
Higher
coffee intake may be linked to lower prostate cancer risk - Science Daily,
1/12/21 - "Each additional daily cup of the brew was
associated with a reduction in relative risk of nearly 1%"
-
Cordyceps militaris Fruit
Body Extract Decreases Testosterone Catabolism and Testosterone-Stimulated
Prostate Hypertrophy - Nutrients 2020 Dec 26 -
"late-onset hypogonadism (LOH) ... The fruit bodies of fungi of the genus
Cordyceps have been regarded as folk medicine or health food with tonic and
antifatigue effects. The extract from the fruit body of Cordyceps militaris
parasitizing Samia cynthia ricini (CM) was evaluated as a novel-candidate
natural product for ameliorating male andropause symptoms. To explore the
effects of CM on LOH and BPH, CM was applied to rat models and cultured
testicular cells and prostate cells. The concentrations of androgens in the
serum and culture media were determined by ELISA. Expression of steroidogenic
enzymes and androgen-related genes was evaluated by qPCR, and prostatic cell
proliferation was assessed with the cell-viability assay. CM maintained the
serum levels of testosterone and DHT, but inhibited testosterone-induced
prostate hypertrophy. CM also increased the secretion of testosterone and DHT by
primary testicular cells, with no changes in the mRNA expression of
steroidogenic enzymes, but decreased the growth of prostatic cell lines. Our
data suggest that CM could improve both LOH and BPH in males."
- See cordyceps at Amazon.com.
-
Combination of Curcumin and
Metformin Inhibits Cell Growth and Induces Apoptosis without Affecting the Cell
Cycle in LNCaP Prostate Cancer Cell Line - Nutr Cancer 2020 Jul 13 -
"The viability of cells treated with curcumin,
metformin, and their combination was significantly (P < 0.05) reduced with
increasing the concentration and prolonging the treatment time. Meanwhile, the
combination showed a synergistic effect within 48 h. In the curcumin treated
group, the expression of Bcl-2 and hTERT genes diminished. In the metformin
treated group, the expression of Bax and PUMA genes was enhanced while the
expression of Bcl-2, hTERT, mTOR, and p53 genes declined. Although all
treatments induced apoptosis, the combination of curcumin and metformin showed
the maximum level of apoptosis, cytotoxicity, and expression of Bax gene. The
combination of curcumin and metformin showed synergistic effects within 48 h.
This combination could be a potential therapeutic candidate for prostate cancer
to be further investigated" - See curcumin at Amazon.com
and
iHerb and
metformin at ReliableRX.
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The Role of Lysosome-Associated
Membrane Protein 2 in Prostate Cancer Chemopreventive Mechanisms of Sulforaphane
- Cancer Prev Res (Phila) 2020 May 20 - "Prostate cancer
chemoprevention by sulforaphane (SFN), which is a metabolic by-product of
glucoraphanin found in broccoli, in preclinical models is associated with
induction of both apoptosis and autophagy ... The present study demonstrates a
role for lysosome-associated membrane protein 2 (LAMP2) in SFN-mediated
autophagy and apoptosis ... the present study reveals that induction of LAMP2 by
SFN inhibits its ability to induce apoptotic cell death at least in human
prostate cancer cells" - See sulforaphane at Amazon.com.
-
Cholesterol Drugs Might Help Curb Prostate Cancers - WebMD, 2/14/20 -
"statins, taken alone or with metformin, did seem
associated with an increase in survival ... Men who took both statins and
metformin had higher median survival (3.9 years) than those who took statins
alone (3.6 years), metformin alone (3.1 years), or those who did not take either
drug (3.1 years)"
-
Inflammatory pathway
employed by Red Maca to treat induced benign prostatic hyperplasia in rats -
Andrologia. 2020 Jan 28 - "The Peruvian plant known as
Red Maca (RM) (Lepidium meyenii) inhibits BPH in rats and mice. The aim of the
study was to assess the inflammatory effect of RM and finasteride in rats with
testosterone enanthate (TE)-induced BPH. Thirty rats were divided into 5 groups:
Control, TE (50 mg/rat), TE + F (0.6 mg/kg), and two groups of TE + RM 40/80 (40
or 80 mg). After treatments, tumour necrosis factor alpha (TNFa), interleukin 4
(IL4) and interferon gamma (INFg) as well as testosterone and oestradiol were
evaluated and inflammatory cells (neutrophils, mast cells and lymphocytes) in
prostate were quantified. Red Maca and finasteride treatments decreased
inflammatory cells counts in prostate, inhibiting TNFa by different pathways.
Finasteride increased IL4 whereas Red Maca increased INFg. In conclusion, data
suggest that finasteride acts on Th2 response by increasing IL4 in prostate,
while Red Maca acts on Th1 response mediated by INFg" - See
Red Maca (RM) (Lepidium meyenii) at Amazon.com.
-
Sweet Cherry Extract
Targets the Hallmarks of Cancer in Prostate Cells: Diminished Viability,
Increased Apoptosis and Suppressed Glycolytic Metabolism - Nutr Cancer. 2019
Sep 11:1-15 - "The Saco "late harvest" extract was
highly-enriched in anthocyanins and selected for use in biological assays. Non-neoplastic
(PNT1A) and neoplastic (LNCaP and PC3) human prostate cells were treated with
0-2,000 μg/ml of extract for 48-96 h. Cell viability was evaluated by the MTT
assay. Apoptosis, oxidative stress, and glycolytic metabolism were assessed by
Western blotting and enzymatic assays. Glucose consumption and lactate
production were measured spectrophotometrically. Saco cherry extract diminished
the viability of neoplastic and non-neoplastic cells, whereas enhancing
apoptosis in LNCaP. Cherry extract-treatment also diminished oxidative damage
and suppressed glycolytic metabolism in LNCaP cells. These findings widened the
knowledge on the mechanisms by which cherry extract modulate cell physiology,
demonstrating their broad action over the hallmarks of cancer" - See
sweet cherry extract at Amazon.com (but it
only shows tart).
-
Benign prostatic
hypertrophy: Pycnogenol® supplementation improves prostate symptoms and residual
bladder volume - Minerva Med. 2018 Aug;109(4):280-284 -
"BPH symptoms like emptying, frequency, intermittency,
urgency, weak flow, straining, nocturia, were all significantly improved with
Pycnogenol® (P<0.05) and the difference with both control groups was
statistically significant" - [Nutra
USA] - See
Pycnogenol at Amazon.com.
-
Western Dietary Pattern,
But not Mediterranean Dietary Pattern, Increases the Risk of Prostate Cancer
- Nutr Cancer. 2018 Sep 20:1-9 - "Two major dietary patterns were identified:
Western dietary (WD) pattern and Mediterranean dietary (MD) pattern. After
adjusting for potential confounders, men who had higher scores for WD pattern
(above the median) were more likely to have prostate cancer (OR = 5.15; 95% CI
(1.44-18.47); P = 0.01) compared with men who had lower scores. A nonsignificant
inverse association was found for MD pattern (OR = 0.62"
-
Role of Host GPR120 in
Mediating Dietary Omega-3 Fatty Acid Inhibition of Prostate Cancer - J Natl
Cancer Inst. 2018 Sep 6 - "GPR120, a G protein-coupled receptor for long-chain
polyunsaturated fatty acids (FAs), mediates the anti-inflammatory effects of
omega-3 (ω-3) FAs ... Host GPR120 plays a central role in the anti-prostate
cancer effects of dietary ω-3 FAs" - See
omega-3 supplements at Amazon.com.
-
Resveratrol treatment may
preserve the erectile function after radiotherapy by restoring antioxidant
defence mechanisms, SIRT1 and NOS protein expressions - Int J Impot Res.
2018 Jul 5 - "Radiotherapy (RT) for prostate cancer (PC)
can cause erectile dysfunction (ED) by damaging neurovascular structures with
oxidative stress. In this study, we evaluated the effects of resveratrol, an
antioxidant, on post-RT ED. Fifty rats in five groups were evaluated; control
(C), prostate-confined radiotherapy with short- and long-term vehicle or
resveratrol treatment ... Radiotherapy caused a decrease in sirtuin-1, nNOS, and
eNOS protein expressions. These parameters were reversed by resveratrol
treatment ... Resveratrol preserved the metabolic pathways involved in erectile
function and provided functional protection. Resveratrol can be used as a
supplementary agent in patients undergoing radiotherapy to preserve erectile
function" - See
resveratrol products at Amazon.com.
-
Night-time urination reduced by cutting salt in diet - Science Daily,
3/27/17 - "223 members of the group were able to
reduce their salt intake from 10.7 gm per day to 8.0 gm/day. In this group, the
average night-time frequency of urination dropped from 2.3 times/night to 1.4
times. In contrast, 98 subjects increased their average salt intake from 9.6
gm/night to 11.0 gm/night, and they found that the need to urinate increased
from 2.3 times/night to 2.7 times/night"
-
The Effect of Green Tea
Consumption on Prostate Cancer Risk and Progression: A Systematic Review -
Nutr Cancer. 2017 Apr;69(3):353-364 - "Findings
demonstrate that green tea appears to be an effective chemopreventive agent,
particularly in those with high-grade prostate intraepithelial neoplasia"
- See
green tea extract at Amazon.com.
-
Dietary
anti-cancer compound may work by influence on cellular genetics - Science
Daily, 3/16/17 - "They found that sulforaphane, a
dietary compound from broccoli that's known to help prevent prostate cancer, may
work through its influence on long, non-coding RNAs ... Scientists now believe
that when these lncRNAs are dysregulated they can contribute to multiple disease
processes, including cancer ... Unlike many chemotherapeutic drugs that affect
healthy cells as well as malignant ones and can cause undesired side effects,
the control of lncRNAs may offer a new way to specifically prevent or slow the
progression of malignant cells ... In particular, this research showed that one
lncRNA, called LINC01116, is upregulated in a human cell line of prostate
cancer, but can be decreased by treatment with sulforaphane" - See sulforaphane at Amazon.com.
-
Increased Inflammatory
Potential of Diet is Associated with Increased Risk of Prostate Cancer in
Iranian Men - Int J Vitam Nutr Res. 2017 Jan 27:1-8 -
"dietary inflammatory index (DII) ...
Multivariable-adjusted analyses revealed that men with higher DII score (>0.23)
to be at higher risk of prostate cancer [odds ratio (OR) = 3.96; 95% CI
=1.29-12.16, p-value = 0.02)] compared to men with lower DII scores"
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Protective Effect of
Green Tea (Camellia sinensis (L.) Kuntze) against Prostate Cancer: From In Vitro
Data to Algerian Patients - Evid Based Complement Alternat Med.
2017;2017:1691568 - "Green tea (GT) ... prostate cancer
(PC) ... oxidative stress (OS) ... glutathione (GSH) ... The consumption of 2-3
cups per day of GT during 6 months significantly increased GSH concentration and
catalase activity and decreased MDA concentration. In conclusion, GT
significantly decreased OS in Algerian PC patients. Regular consumption of GT
for a long period may prevent men from developing PC or at least delay its
progression" - See
green tea extract at Amazon.com.
-
Metformin inhibits
castration-induced EMT in prostate cancer by repressing COX2/PGE2/STAT3 axis
- Cancer Lett. 2016 Dec 30;389:23-32 - "We propose that
metformin represses prostate cancer EMT and metastasis through targeting the
COX2/PGE2/STAT3 axis. These findings suggest that metformin by itself or in
combination with other anticancer drugs could be used as an anti-metastasis
therapy" - See
metformin at The Antiaging Store.
-
Tomato-based randomized
controlled trial in prostate cancer patients: Effect on PSA - Clin Nutr.
2016 Jun 30 - "79 patients with prostate cancer were
randomized to a nutritional intervention with either 1) tomato products
containing 30 mg lycopene per day; 2) tomato products plus selenium, omega-3
fatty acids, soy isoflavones, grape/pomegranate juice, and green/black tea
(tomato-plus); or 3) control diet for 3 weeks ... Post-hoc, exploratory analyses
within intermediate risk (n = 41) patients based on tumor classification and
Gleason score post-surgery, revealed that median PSA decreased significantly in
the tomato group as compared to controls (-2.9% and +6.5% respectively, p =
0.016). In separate post-hoc analyses, we observed that median PSA-values
decreased by 1% in patients with the highest increases in plasma lycopene,
selenium and C20:5 n-3 fatty acid, compared to an 8.5% increase in the patients
with the lowest increase in lycopene, selenium and C20:5 n-3 fatty acid (p =
0.003). Also, PSA decreased in patients with the highest increase in lycopene
alone (p = 0.009)" - See
lycopene at Amazon.com.
-
Anti-Proliferation Effects
of Garlic (Allium sativum L.) on the Progression of Benign Prostatic Hyperplasia
- Phytother Res. 2016 May 18 - "Garlic administration
decreased relative prostate weight ratio, suppressed mRNA expression level of
AR, DHT serum levels, and the growth of prostatic tissue in BPH-induced rats.
Moreover, garlic administration decreased the levels of inflammatory proteins,
iNOS, and COX-2 in prostatic tissue. Further investigation showed that garlic
induced accumulation of death-inducing signal complex and activation of AMPK and
decreased the levels of anti-apoptotic proteins, such as Bcl-2, Bcl-xL, and
survivin. These results suggest that garlic may have suppressing effects on BPH
and it has great potential to be developed as treatment for BPH" - See
garlic supplements at Amazon.com.
-
Metformin
Has a Positive Therapeutic Effect on Prostate Cancer in Patients With Type 2
Diabetes Mellitus - Am J Med Sci. 2016 Apr;351(4):416-9 -
"Patients with prostate cancer along with DM2 who
remained on metformin were compared with controls who were not on metformin
matched by age, weight, race and Gleason score cancer staging ... There were
significantly fewer deaths (23% versus 10%), fewer recurrences (15% versus 8%),
fewer metastases (5% versus 0%) and fewer secondary cancers (17% versus 6%) in
the metformin group (P < 0.004). The final PSA value was lower in the
metformin-treated group with a result approaching significance" - See
metformin at The Antiaging Store.
-
Selenium status and risk
of prostate cancer in a Danish population - Br J Nutr. 2016 Mar 14:1-9 -
"levels of plasma Se and selenoprotein P were not
associated with the risk of total and advanced prostate cancer, but higher
levels of these two biomarkers were associated with a lower risk of high-grade
disease" - [Nutra
USA]
-
Vitamin D,
PTH, and calcium in relation to survival following prostate cancer - Cancer
Causes Control. 2016 Mar 29 - "This study shows that
levels of pre-diagnostic vitamin D above 85 nmol/L may improve survival in men
with prostate cancer" - Note:
85 nmol/L =
34 ng/ml. I'd still consider that way too low (see bullet below).
See
vitamin D at Amazon.com.
-
Low Vitamin D Linked to Aggressive, Advanced Prostate Cancers: Study -
WebMD, 5/1/14 - "Normal vitamin D levels are in the
range of 30 to 80 nanograms per milliliter (ng/ml)"
-
Low
vitamin D predicts aggressive prostate cancer - Science Daily, 3/1/16 -
"Men with dark skin, low vitamin D intake or low sun
exposure should be tested for vitamin D deficiency when they are diagnosed with
an elevated PSA or prostate cancer. Then a deficiency should be corrected with
supplements ... Of that group, 87 men had aggressive prostate cancer. Those with
aggressive cancer had a median level of 22.7 nanograms per milliliter of vitamin
D, significantly below the normal level of more than 30 nanograms/milliliter.
The average D level in Chicago during the winter is about 25
nanograms/milliliter ... Most people in Chicago should be on D supplements,
particularly during winter months" - See
vitamin D at Amazon.com.
-
Dietary
total antioxidant capacity is inversely associated with prostate cancer
aggressiveness in a population-based study - Nutr Cancer. 2016 Feb 4:1-11 -
"total antioxidant capacity (TAC) ... African Americans
(AA) ... European Americans (EA) ... In both minimally and fully adjusted
logistic regression models, TAC from diet and supplements combined was
associated with a reduced odds of high aggressive prostate cancer in all men, AA
and EA: odds ratios for highest vs. lowest level (>1500 vs. <500 mg vitamin C
equivalent/day): 0.31 [95% confidence interval (CI): 0.15, 0.67; P-trend <
0.01], 0.28 (95% CI: 0.08, 0.96; P-trend < 0.001), and 0.36 (95% CI: 0.15, 0.86;
P-trend = 0.58), respectively. These associations did not appear to differ
between AA and EA. These data suggest that greater intake of antioxidants is
associated with less aggressive prostate cancer"
-
More Side Effects in First
Year With BPH Drugs - Medscape, 12/31/15 - "At year
1, the incidence of impotence was significantly higher with finasteride
(1.9-fold higher; p=0.006) and combination therapy (2.4-fold higher; p <0.001).
Beyond year 1, the rates between the drug treatment groups and placebo were
similar ... Incidence rates for decreased libido were also significantly higher
at year 1 with finasteride (1.7-fold higher; p=0.021) and combination therapy
(2-fold higher; p=0.001). After year 1, the rates between the treatment groups
and placebo were similar ... at year 1, the incidence of abnormal ejaculation
was significantly higher with finasteride (2.5-fold higher; p=0.002) and
combination therapy (5.5-fold higher; p<0.001). And after year 1, only the
combination therapy group had a significantly higher incidence rate compared
with placebo"
-
Low serum
dehydroepiandrosterone examined by liquid chromatography-tandem mass
spectrometry correlates with poor prognosis in hormone-naïve prostate cancer
- Prostate. 2015 Nov 30 - "We confirmed that low serum DHEA levels in prostate
cancer patients were related to high Gleason score and advanced clinical stage.
These results suggest that serum DHEA level may be a useful prognostic factor in
prostate cancer patients" - See Pure Encapulations 7-Keto DHEA at Amazon.com.
-
Working
up a sweat may protect men from lethal prostate cancer - Science Daily,
11/18/15 - "It's interesting that vigorous activity had
the highest potential impact on prevention of lethal prostate cancer. We
calculated the population-attributable risk for American men over 60 and
estimated that 34 percent of lethal prostate cancer would be reduced if all men
exercised to the point of sweating for at least three hours a week ... lethal
prostate cancer among American men over 60 would be cut by 15 percent if they
consumed at least seven servings of tomatoes per week and that 17 percent would
be spared this diagnosis if they consumed at least one serving of fatty fish per
week. Reducing intake of processed meats would cut the risk by 12 percent"
-
A
prospective study of plasma 25-hydroxyvitamin D concentration and prostate
cancer risk - Br J Nutr. 2015 Nov 16 - "Higher
25(OH)D concentration was associated with decreased risk of prostate cancer
(ORQ4 v. Q1 0.30" - See
vitamin D at Amazon.com.
-
Dietary
flavonoid fisetin binds to β-tubulin and disrupts microtubule dynamics in
prostate cancer cells - Cancer Lett. 2015 Jul 30 - "Fisetin significantly
inhibited PCa cell proliferation, migration, and invasion. Nudc, a protein
associated with microtubule motor dynein/dynactin complex that regulates
microtubule dynamics was inhibited with fisetin treatment. Further, fisetin
treatment of a P-glycoprotein overexpressing multidrug-resistant cancer cell
line NCI/ADR-RES, inhibited the viability and colony formation. Our results
offer in vitro proof-of-concept for fisetin as a microtubule targeting agent. We
suggest fisetin could be developed as an adjuvant for treatment of prostate and
other cancer types" - See fisetin at Amazon.com.
-
Increased
Dietary Inflammatory Index (DII) Is Associated With Increased Risk of Prostate
Cancer in Jamaican Men - Nutr Cancer. 2015 Jul 30 -
"We examined the association between a newly developed dietary inflammatory
index (DII) and prostate cancer in a case-control study of 40-80 yr old Jamaican
males ... Men in the highest quartile of the DII were at higher risk of prostate
cancer [odds ratio (OR) = 2.39; 95% confidence interval (CI) = 1.14-5.04; Ptrend
= 0.08] compared to men in the lowest DII quartile"
-
Impact of Metformin on
Clinical Outcomes in Prostate Cancer - Medscape, 6/9/15 -
"Metformin may reduce the risk of biochemical recurrence
in prostate cancer" - See
metformin at The Antiaging Store.
-
Average U.S. Diet May Kill Prostate Cancer Survivors - NBC News, 6/2/15 -
"men diagnosed with nonmetastatic prostate cancer whose
diet was more 'Westernized,' i.e., contained processed meats, refined grains,
potatoes, and high-fat dairy, were more likely to die of prostate cancer ...
They were more than 2.5 times as likely to die of their prostate cancer than
patients eating the healthiest diet and they were more than one and a half times
as likely to have died of anything over the 10 years"
-
Effect of
Sulforaphane in Men with Biochemical Recurrence after Radical Prostatectomy
- Cancer Prev Res (Phila). 2015 May 12 - "Since the
phytochemical sulforaphane (SF) has been studied extensively as an anticancer
agent, we performed a double-blinded, randomized, placebo-controlled multicenter
trial with SF in 78 patients (mean age 69±6 years) with rising PSA levels after
radical prostatectomy. Treatment comprised daily oral administration of 60 mg of
a stabilized free SF for 6 months (M0 to M6) followed by 2 months without
treatment (M6 to M8) ... Mean changes in PSA levels between M6 and M0 were
significantly lower in the SF group (+0.099 ± 0.341 ng/ml) compared with placebo
(+0.620 ± 1.417 ng/ml; p = 0.0433). PSA doubling time was 86% longer in the SF
than in the placebo group (28.9 and 15.5 months, respectively). PSA increases
>20% at M6 were significantly greater in the placebo group (71.8%) than in the
SF group (44.4%); p=0.0163. Compliance and tolerance were very good. SF effects
were prominent within 3 months of intervention (M3 to M6)" - See
sulforaphane at Amazon.com.
-
Treating
gum disease reduces prostate symptoms, researchers find - Science Daily,
5/5/15 - "gum disease not only affects the mouth, but is a system-wide condition
that can cause inflammation in various parts of the body ... During the
periodontal care, the men received no treatment for their prostate conditions.
But even without prostate treatment, 21 of the 27 men showed decreased levels of
PSA. Those with the highest levels of inflammation benefited the most from the
periodontal treatment. Six participants showed no changes ... Bissada is now
conducting follow-up research to support the first study's findings. He hopes to
make periodontal treatment a standard part of treating prostate disease"
-
Metformin
inhibits the proliferation of human prostate cancer PC-3 cells via the
downregulation of insulin-like growth factor 1 receptor - Biochem Biophys
Res Commun. 2015 Apr 7 - "Recent studies have shown that
metformin inhibits cancer cell proliferation and tumor growth both in vitro and
in vivo ... Our results suggest that metformin is a potent inhibitor of the
IGF-1/IGF-1R system and may be beneficial in prostate cancer treatment" -
See
metformin at The Antiaging Store.
-
Vitamin
D may keep low-grade prostate cancer from becoming aggressive - Science
Daily, 3/22/15 - "His previous research had shown that
when men with low-grade prostate cancer took vitamin D supplements for a year,
55 percent of them showed decreased Gleason scores or even complete
disappearance of their tumors compared to their biopsies a year before ...
assigned 37 men undergoing elective prostatectomies either to a group that
received 4,000 U of vitamin D per day, or to a placebo group that didn't receive
vitamin D. The men's prostate glands were removed and examined 60 days later ...
many of the men who received vitamin D showed improvements in their prostate
tumors, whereas the tumors in the placebo group either stayed the same or got
worse. Also, vitamin D caused dramatic changes in the expression levels of many
cell lipids and proteins, particularly those involved in inflammation" - See
vitamin D at Amazon.com.
-
How
fatty acids can fight prostate cancer - Science Daily, 3/18/15 -
"the fatty acids bind to a receptor called FFA4, for
"free fatty acid receptor 4." Rather than stimulating cancer cells, the receptor
acts as a signal to inhibit growth factors, suppressing proliferation of the
cancer cells" - See
fish oil supplements at Amazon.com.
-
Effect of
Ginkgo biloba Extract (EGb-761) on Recovery of Erectile Dysfunction in Bilateral
Cavernous Nerve Injury Rat Model - Urology. 2015 Mar 12 -
"Forty-three male Sprague-Dawley rats underwent
cavernous nerve crush injury and were randomized into 4 groups, including:
vehicle only, high-dose GBE, medium-dose GBE, and low-dose GBE ...
Administration of GBE increases neuron survival and preserves the neural nitric
oxide synthase nerve fiber and contents of the corpus cavernosum after bilateral
cavernous nerve injury. These implications indicate the beneficial effects of
GBE use in the repair of the cavernous nerve and recovery of erectile function
after radical prostatectomy" - See
Ginkgo biloba at Amazon.com.
-
Beyond
prevention: Sulforaphane may find possible use for cancer therapy - Science
Daily, 1/12/14 - "The new study identified a particular
enzyme in prostate cancer cells, SUV39H1, that is affected by exposure to
sulforaphane ... sulforaphane has shown toxicity to a number of human cancer
cell lines, including prostate, breast, ovarian, colon and pancreatic cancer,
and in animal studies it decreased metastases of prostate cancer" - See
sulforaphane at Amazon.com.
-
Fiber intake
and risk of subsequent prostate cancer in Japanese men - Am J Clin Nutr.
2015 Jan;101(1):118-25 - "Dietary fiber is inversely
associated with advanced prostate cancer detected by subjective symptoms even
among populations with relatively low intake, such as Japanese. These results
suggest that a very low intake of dietary fiber is associated with an increased
risk of prostate cancer"
-
Do
Environmental Factors Modify the Genetic Risk of Prostate Cancer? - Cancer
Epidemiol Biomarkers Prev. 2014 Oct 23 - "This study
suggests that selenium supplements may reduce genetic risk of advanced PCa,
while aspirin, ibuprofen, and vegetables may reduce genetic risk of nonadvanced
PCa" - See
se-methyl l-selenocysteine at Amazon.com.
-
Potent
inhibitory effect of δ-tocopherol on prostate cancer cells cultured in vitro and
grown as xenograft tumors in vivo - J Agric Food Chem. 2014 Oct 16 -
"the effects of δ-tocopherol (δ-T) on growth and
apoptosis of human prostate cancer cells were determined and compared with that
of α-tocopherol (α-T), a commonly used form of vitamin E. Treatment of human
prostate cancer cells with δ-T resulted in strong growth inhibition and
apoptosis stimulation while the effects of α-T were modest ... In the in vivo
study, we found that δ-T had a more potent inhibitory effect on the formation
and growth of prostate xenograft tumors than α-T. Moreover, δ-T inhibited
proliferation and stimulated apoptosis in the tumors" - Note: α = alpha,
δ = delta. See
Jarrow FamilE (contains all eight members of the vitamin E family, includes
Tocomin) at Amazon.com.
-
Effects of Pumpkin Seed in
Men with Lower Urinary Tract Symptoms due to Benign Prostatic Hyperplasia in the
One-Year, Randomized, Placebo-Controlled GRANU Study - Urol Int. 2014 Sep 5
- "A total of 1,431 men (50-80 years) with BPH/LUTS were randomly assigned to
either pumpkin seed (5 g b.i.d.), capsules with pumpkin seed extract (500 mg
b.i.d.) or matching placebo ... International Prostate Symptom Score (IPSS) ...
In the case of pumpkin seed (responders: 58.5%), the difference compared with
placebo (responders: 47.3%) was descriptively significant. The study products
were well tolerated. Overall, in men with BPH, 12 months of treatment with
pumpkin seed led to a clinically relevant reduction in IPSS compared with
placebo"
-
Tolerance of
Phellodendron amurense Bark Extract (Nexrutine®) in Patients with Human Prostate
Cancer - Phytother Res. 2014 Sep 9 - "All the toxicities were transient. By
the end of the neoadjuvant treatment, 81% of the patients had a decline in
prostate-specific antigen" - See Nexrutine® products at Amazon.com.
-
SMILE
upregulated by metformin inhibits the function of androgen receptor in prostate
cancer cells - Cancer Lett. 2014 Sep 5 - "Metformin,
a diabetes drug, has been reported to inhibit the growth of prostate cancer
cells ... metformin upregulated the protein level of small heterodimer
partner-interacting leucine zipper (SMILE), a coregulator of nuclear receptors,
and knockdown of SMILE expression with shRNA abolished the inhibitory effect of
metformin on AR function ... these results suggest that SMILE, which is induced
by metformin, functions as a novel AR corepressor and may mediate the inhibitory
effect of metformin on androgen-dependent growth of prostate cancer cells"
- See
metformin at The Antiaging Store.
-
Metformin
Inhibits Epithelial-Mesenchymal Transition in Prostate Cancer Cells: Involvement
of the Tumor Suppressor miR30a and its Target Gene SOX4 - Biochem Biophys
Res Commun. 2014 Sep 5 - "Tumor metastasis is the
leading cause of mortality and morbidity of prostate cancer (PCa) patients.
Epithelial-mesenchymal transition (EMT) plays a critical role in cancer
progression and metastasis. Recent evidence suggested that diabetic patients
treated with metformin have lower PCa risk and better prognosis ... metformin
significantly inhibits proliferation of Vcap and PC-3 cells, induces G0/G1 cell
cycle arrest and inhibits invasiveness and motility capacity of Vcap cells"
- See
metformin at The Antiaging Store.
-
Men who
exercise less more likely to wake up to urinate - Science Daily, 8/28/14 -
"Among men in the incident group, those who were
physically active one or more hours per week were 13 percent less likely to
report nocturia and 34 percent less likely to report severe nocturia then men
who reported no physical activity. (Nocturia was defined as waking two or more
times during the night to urinate; severe nocturia was defined as waking three
or more times to urinate.)"
-
Fighting
prostate cancer with tomato-rich diet - Science Daily, 8/27/14 -
"the first study of its kind to develop a prostate
cancer 'dietary index' which consists of dietary components -- selenium, calcium
and foods rich in lycopene -- that have been linked to prostate cancer ... Men
who had optimal intake of these three dietary components had a lower risk of
prostate cancer ... Tomatoes and its products -- such as tomato juice and baked
beans -- were shown to be most beneficial, with an 18 per cent reduction in risk
found in men eating over 10 portions a week ... This is thought to be due to
lycopene, an antioxidant which fights off toxins that can cause DNA and cell
damage" - See
Jarrow Lyco-Sorb (contains Lyco-O-Mato) at Amazon.com.
-
Resveratrol:
Inhibitory Effects on Metastatic Cell Behaviors and Voltage-Gated Na+ Channel
Activity in Rat Prostate Cancer In Vitro - Nutr Cancer. 2014 Aug 7:1-12 -
"These results suggest 1) that a significant mode of
action of resveratrol is VGSC blockage and 2) that resveratrol has promise as a
natural antimetastatic agent" - See
resveratrol products at Amazon.com.
-
Vitamin d in
blood and risk of prostate cancer: lessons from the selenium and vitamin e
cancer prevention trial and the prostate cancer prevention trial - Cancer
Epidemiol Biomarkers Prev. 2014 Aug;23(8):1447-9 - "The
"U-shaped" curve may reflect detection bias. In the PCPT study, in which
detection bias was minimized, serum 25-OHD levels were associated with a linear
decrease in the risk of high-grade prostate cancers. The results from these
large prevention trials support the hypothesis that circulating levels of 25-OHD
decrease the risk of clinically relevant prostate cancers" - See
vitamin D at Amazon.com.
-
Genistein
inhibits human prostate cancer cell detachment, invasion, and metastasis -
Am J Clin Nutr. 2014 May 28 - "genistein inhibits cell
detachment, protease production, cell invasion, and human PCa metastasis at
concentrations achieved in humans with dietary intake. Finally, phase I and
phase II clinical trials conducted by us and others showed that concentrations
of genistein associated with antimetastatic efficacy in preclinical models are
achievable in humans, and treatment with genistein inhibits pathways that
regulate metastatic transformation in human prostate tissue" - See
genistein at Amazon.com.
-
Prostatic
and dietary omega-3 fatty acids and prostate cancer progression during active
surveillance - Cancer Prev Res (Phila). 2014 May 13 -
"We found that eicosapentaenoic acid (EPA) was
associated with a reduced risk of PCa progression when measured directly in the
prostate tissue. Thus, this initial interim study analysis suggests that
prostate tissue ω-3 fatty acids, especially EPA, may be protective against PCa
progression in men with low-risk PCa" - See
fish oil supplements at Amazon.com.
-
Low Vitamin D Linked to Aggressive, Advanced Prostate Cancers: Study -
WebMD, 5/1/14 - "Tresearchers checked vitamin D levels
in 667 Chicago men between the ages of 40 and 79 who were having prostate
biopsies because they'd recently had an abnormal prostate specific antigen (PSA)
test or because a doctor felt changes to the prostate during a physical exam ...
Normal vitamin D levels are in the range of 30 to 80 nanograms per milliliter
(ng/ml) ... About 44 percent of the men with positive biopsies and 38 percent of
those who tested negative for cancer had low vitamin D levels ... Among men who
tested positive for cancer after their biopsies, those who also had very low
levels of vitamin D -- under 12 ng/ml -- had greater odds of more advanced and
aggressive cancers than those with normal levels" - See
vitamin D at Amazon.com.
-
Genetic
Variants Reflecting Higher Vitamin E Status in Men Are Associated with Reduced
Risk of Prostate Cancer - J Nutr. 2014 Mar 12 -
"Findings suggest lower prostate cancer risk for men whose genotypes reflect
higher vitamin E (i.e., α-tocopherol) status. An SNP (rs964184) near
budding-site selection protein 13 [BUD13 (yeast)], zinc finger protein 259
(ZNF259), and apolipoprotein A5 (APOA5) on 11q23.3 was significantly associated
with prostate cancer risk (per-allele OR = 0.75; 95% CI: 0.58, 0.98; P-trend =
0.03). The association between rs964184 and prostate cancer risk was stronger
among homozygous carriers of the minor allele (OR = 0.27; 95% CI: 0.09, 0.83).
Another variant, rs11057830 in scavenger receptor class-B member 1 (SCARB1) on
12p24.31, approached statistical significance (OR = 0.32; 95% CI: 0.10, 1.01, P
= 0.05; 2 minor allele copies)" - Note: Some studies show that
taking only the alpha form of vitamin E can cause a deficiency of the other
forms. See
Jarrow FamilE (contains all eight members of the vitamin E family, includes
Tocomin) at Amazon.com.
-
Dietary
Total and Insoluble Fiber Intakes Are Inversely Associated with Prostate Cancer
Risk - J Nutr. 2014 Feb 1 - "included 3313 men from
the Supplémentation en Vitamines et Minéraux Antioxydants (SU.VI.MAX) cohort who
completed at least 3 24-h dietary records ... Prostate cancer risk was inversely
associated with total dietary fiber intake (HR of quartile 4 vs. quartile 1 =
0.47; 95% CI: 0.27, 0.81; P = 0.001), insoluble (HR = 0.46; 95% CI: 0.27, 0.78;
P = 0.001), and legume (HR = 0.55; 95% CI: 0.32, 0.95; P = 0.04) fiber intakes.
In contrast, we found no association between prostate cancer risk and soluble (P
= 0.1), cereal (P = 0.7), vegetable (P = 0.9), and fruit (P = 0.4) fiber
intakes" - See
fiber supplements at Amazon.com.
-
Nutrient-based dietary patterns and prostate cancer risk: a case-control study
from Italy - Cancer Causes Control. 2014 Feb 11 -
"Animal Unsaturated Fatty Acids (AUFA) ... We found positive associations
between prostate cancer and "Animal Products" (OR for the highest vs. the lowest
score quintile: 1.51, 95 % CI 1.16-1.96), "Starch-rich" (OR 1.50, 95 % CI 1.16
1.93), and "AUFA" (OR 1.32, 95 % CI 1.02-1.70) patterns"
-
Safety and
chemopreventive effect of Polyphenon E in preventing early and metastatic
progression of prostate cancer in TRAMP mice - Cancer Prev Res (Phila). 2014
Feb 5 - "We investigated the safety and efficacy of
Polyphenon E, a green tea extract, in reducing the progression of prostate
cancer in TRAMP mice ... The number and size of tumors in treated TRAMP mice
were significantly decreased compared to untreated animals. In untreated 32
weeks old TRAMP mice, prostate carcinoma metastasis to distant sites was
observed in 100% of mice (8/8), compared to 13% of mice (2/16) treated with high
dose Polyphenon E during the same period. Further, Polyphenon E treatment
significantly inhibited metastasis in TRAMP mice in a dose-dependent manner
(P=0.0003). Long-term (32 weeks) treatment with Polyphenon E was safe and well
tolerated with no evidence of toxicity in C57BL/6J mice" - See
green tea extract at Amazon.com.
- Polyphenon -
Wikipedia - "Polyphenon E is the trademarked
designation for the most purified form of green tea extract manufactured by
Mitsui Norin"
-
Melatonin may lower prostate cancer risk - Science Daily, 1/20/14 -
"conducted a case-cohort study of 928 Icelandic men from
the AGES-Reykjavik cohort between 2002 and 2009. They collected first morning
void urine samples at recruitment, and asked the participants to answer a
questionnaire about sleep patterns ... men whose 6-sulfatoxymelatonin levels
were higher than the median value had a 75 percent decreased risk for advanced
prostate cancer. A 31 percent decreased risk for prostate cancer overall was
observed as well, but this finding was not statistically significant" -
See
melatonin at Amazon.com.
-
Dietary
Patterns and Prostate Cancer Risk: Report from the Population Based ULSAM Cohort
Study of Swedish Men - Nutr Cancer. 2013 Dec 10 -
"Food intake data in the Uppsala Longitudinal Study of Adult Men cohort was
determined by 7-day food records. Adherence to a modified Mediterranean Diet
Score (mMDS) and a low carbohydrate-high protein (LCHP) score were grouped as
low, medium, or high in the whole study population (n = 1,044) and in those
identified as adequate reporters of energy intake (n = 566), respectively ...
Among adequate reporters the mMDS was not associated with prostate cancer (n =
72). The LCHP score was inversely related to prostate cancer in adequate
reporters, adjusted hazard ratios; 0.55 (0.32-0.96) for medium and 0.47
(0.21-1.04) for high compared to low adherent participant"
-
Chemopreventive Effect of Quercetin in MNU and Testosterone Induced Prostate
Cancer of Sprague-Dawley Rats - Nutr Cancer. 2013 Dec 9 -
"male Sprague-Dawley rats were induced prostate cancer
by hormone (testosterone) and carcinogen (MNU) and simultaneously supplemented
with quercetin (200 mg/Kg body weight) thrice a week ... The study concluded
that dietary quercetin prevented MNU + T-induced prostate carcinogenesis on both
ventral and dorsolateral lobes of Sprague-Dawley rats" - See
quercetin at Amazon.com.
-
Low-fat
fish oil changes cancer tissue in prostate cancer, study shows - Science
Daily, 11/18/13 - "Men with prostate cancer who ate a
low-fat diet and took fish oil supplements had lower levels of pro-inflammatory
substances in their blood and a lower cell cycle progression score, a measure
used to predict cancer recurrence ... lowering the cell cycle progression (CCP)
score may help prevent prostate cancers from becoming more aggressive ... The
Western diet consisted of 40 percent of calories from fat, generally equivalent
to what many Americans consume today .... The low-fat diet consisted of 15
percent of calories from fat. Additionally, the men on this diet took five grams
of fish oil per day in five capsules, three with breakfast and two with dinner,
to provide omega-3 fatty acids" -
See
Mega Twin EPA at Amazon.com
and
Jarrow Max DHA at Amazon.com.
-
Fatty Acid and Phytosterol
Content of Commercial Saw Palmetto Supplements - Nutrients 2013, 5(9),
3617-3633 - "The variation in the efficacy in these
trials may be a result of differences in the putative active components, fatty
acids and phytosterols, of the saw palmetto supplements ... Liquid saw palmetto
supplements contained significantly higher (p < 0.05) concentrations of total
fatty acids (908.5 mg/g), individual fatty acids, total phytosterols (2.04
mg/g), and individual phytosterols, than the other supplement categories.
Powders contained significantly higher (p < 0.05) concentrations of total fatty
acids than tinctures, which contain negligible amounts of fatty acids (46.3
mg/g) and phytosterols (0.10 mg/g). Our findings suggest that liquid saw
palmetto supplements may be the best choice for individuals who want to take a
saw palmetto supplement with the highest concentrations of both fatty acids and
phytosterols" - Note: See the table. It was a no contest.
According to Nutra USA, Doctor's Best had the highest fatty acid content of
the products tested. See
Doctor's Best Saw Palmetto at Amazon.com.
-
Selective Estrogen Receptor
Modulators for BPH - Medscape, 10/17/13 - "Many
epidemiological and experimental researches have shown that dietary estrogens
are beneficial to men's health.[29,31,32] This may be evident from the fact that
men living in Western nations have higher incidence of prostate cancer and BPH,
plausibly because of their lower dietary phytoestrogen intake, as compared with
their counterparts in Asian countries.[33–35] Many of these phytoestrogens are
found to display ERβ receptor selectivity, especially compounds whose core
structures have isoflavone or flavones group. Genistein, a naturally occurring
SERM which shows 22-fold selectivity for ERβ, is an isoflavone usually found in
soy ... Our in vivo studies in rat[3] indicated that irrespective of the
molecular structure and mechanism of action, the SERMs universally and
significantly reduce prostate weight. This response was better in combination
with a 5α-reductase inhibitor, finasteride. We found that the ventral prostate
of adult mature rats receiving tamoxifen, BP and ormeloxifene each at 1.0 mg
kg−1 dose for 21 days regressed significantly by 37%, 32%, 36% respectively"
- Note: It's a nine page article. I was disappointed that it didn't get in to
aromatase inhibitors such as Femara (letrozole). See
genistein at Amazon.com.
-
Letrozole - Steroidal.com - "Letrozole (Femara)
belongs to a category and class of drugs known as aromatase inhibitors
(AIs). Aromatase inhibitors belong to an even broader class of drugs known
as anti-estrogens. The other subcategory of drug under the anti-estrogens
category is known as selective estrogen receptor modulators (SERMs), such as
Nolvadex and Clomid. AIs and SERMs make up anti-estrogens. Aromatase
inhibitors differ greatly from SERMs in their action and how they deal with
the issues of estrogen control"
-
Chemopreventive effect of quercetin, a natural dietary flavonoid on prostate
cancer in in vivo model - Clin Nutr. 2013 Sep 3 -
"the rats were divided into four groups; Group I: control (propylene
glycol-vehicle), Group II: cancer-induced (MNU and Testosterone treated) rats,
Group III: cancer-induced + Quercetin (200 mg/kg body wt/orally) and Group IV:
Quercetin (200 mg/kg body wt) thrice a week ... Quercetin down regulates the
cell survival, proliferative and anti-apoptotic proteins thereby prevents
prostate cancer, by acting as a chemopreventive agent in preclinical model"
- See quercetin at Amazon.com.
-
Serum
Calcium Concentration and Prostate Cancer Risk: A Multicenter Study - Nutr
Cancer. 2013 Sep 20 - "This study sought to further
evaluate the possible effects of serum calcium level on prostate cancer (PC)
risk, with considering the age, body mass index (BMI), and sex steroid hormones.
Using data from a prospective multicenter study, serum calcium concentration, as
well as thorough demographic and medical characteristics, were determined in 194
cases with newly diagnosed, clinicopathologically confirmed PC and 317 controls,
without any malignant disease, admitted to the same network of hospitals ... An
increase of 1 mg/dl in serum calcium level was associated with a significant
decrease in PC risk (OR = 0.52; 95% CI = 0.34-0.76). Our findings reveal the
inverse association between serum total and ionized concentrations and PC risk,
which supports the hypothesis that calcium may protect against PC" -
Note: Conflicts with some previous studies.
-
Calcium
consumption may cause prostate cancer in Chinese, research suggests -
Science Daily, 6/1/10 - "Results showed a 25 percent
increased risk of prostate cancer when comparing those who consumed, on average,
659 mg vs. 211 mg of total calcium a day ... Major food sources of calcium in
this population consisted of: vegetables (19.3 percent), dairy (17.3 percent),
grain products (14.7 percent), soyfoods (11.8 percent), fruit (7.3 percent) and
fish (6.2 percent). However, the researchers stress that there was no positive
association with prostate cancer risk and any one particular food source ...
Among men with less than average BMI (median BMI was 22.9 kg/m2), the
researchers found a twofold increased risk of prostate cancer"
-
Too Much
Calcium In Blood May Increase Risk Of Fatal Prostate Cancer - Science Daily,
9/3/08 - "Comparing men in the top third with men in the
bottom third, we found a significantly increased hazard for fatal prostate
cancer"
-
The Effect of High Calcium Levels on Prostate Cancer - Physician's Weekly,
8/13/07 - "the relative risk of prostate cancer for
2,000 mg/day or more of calcium intake was 1.63. Conversely, a 1.26 relative
risk calculation was observed for ingestion of less than 1,000 mg/day of
calcium"
-
Too much calcium may raise prostate cancer risk - Nutra USA, 11/15/05 -
"men who consumed more than 2000mg of calcium per
day nearly doubled their risk of developing prostate cancer"
-
Oxidative Stress in
Prostate Cancer - Medscape, 9/17/13 - "increased
production of reactive oxygen species (ROS) is linked to aging processes and to
the etiopathogenesis of aging-related diseases, such as cancer, diabetes,
atherosclerosis and degenerative diseases like Parkinson's and Alzheimer's.
Excess ROS are deleterious to normal cells, while in cancer cells, they can lead
to accelerated tumorigenesis ... Reactive oxygen species (ROS), also termed
oxidants, are common by-products of the standard aerobic cellular metabolism,
continuously formed in the cell and synchronously scavenged by an array of
antioxidant mechanisms ... At the molecular level, ROS production takes place
continuously at redox-active centers within enzymes or when ubiquinone (coenzyme
Q10 (CoQ)), the essential electron carrier, accepts or donates electrons ... At
the molecular level, ROS production takes place continuously at redox-active
centers within enzymes or when ubiquinone (coenzyme Q10 (CoQ)), the essential
electron carrier, accepts or donates electrons. Unique bioenergetic conditions
are required to occur, such as high NADH-H+/NAD ratio or a high proton-motive
force across the inner mitochondrial membrane (Δp) and concomitantly reduced CoQ
pool (CoQH2), to accelerate ROS formation in the mitochondria ... Adiponectin, a
hormone inversely associated with obesity, inhibits oxidative stress in human PC
cells in a dose-dependent manner. Lower levels of adiponectin in obese
individuals may result in higher levels of prostatic oxidative stress, which may
explain the clinical association between obesity, hypoadiponectinemia and PC ...
Several foods containing natural antioxidants, such as polyphenols and
flavonoids, and other phytonutrients, such as vitamins and minerals, are
proposed to facilitate ROS detoxification ... Several potential suggestions have
been put forth to explain the results of the study, which were contrary to the
original prevention hypothesis. (i) The high dose of vitamin E (400 IU), which
was eight times higher than the 50 IU used in the ABTC study, may abolish the
preventive effect or even contribute to the increased risk of PC demonstrated in
the study.[82] (ii) Animal studies demonstrate cancer preventive activity of γ-
and δ-tocopherols, as well as for the naturally occurring mixture of
tocopherols, but not by α-tocopherol,[83] the source of vitamin E used in the
SELECT trail. (iii) Different individuals may respond inconsistently to
antioxidant treatment depending on specific, intrinsic genetic risk factors"
-
Four or
more cups of coffee a day may keep prostate cancer recurrence and progression
away - Science Daily, 8/26/13 - "men who drank four
or more cups of coffee per day experienced a 59 percent reduced risk of prostate
cancer recurrence and/or progression as compared to those who drank only one or
fewer cups per week ... the researchers did not find an associated reduction of
prostate cancer recurrence and/or progression. The study also did not draw any
conclusions regarding the impact of tea drinking on prostate-specific death ...
The population-based study involved 1,001 prostate cancer survivors, aged 35-74
years old at the time of diagnosis between 2002-2005, who were residents of King
County, Wash ... biological activities associated with consumption of
phytochemical compounds found in coffee include anti-inflammatory and
antioxidant effects and modulation of glucose metabolism"
-
Metformin May Lower Risk of Prostate Cancer Death, Researchers Say - WebMD,
8/5/13 - "metformin is associated with improved survival
among diabetic patients with prostate cancer ... whether metformin can prevent
prostate cancer progression in people without diabetes remains to be seen ...
those who took metformin had a 24 percent reduction in risk from prostate cancer
death for every additional six months of use after their cancer diagnosis. The
risk reduction of death from other causes was initially the same but declined
over time ... No reduction in death risk was seen for patients taking any other
diabetes drug ... other diabetes drugs work by increasing the body's insulin
production, metformin is an "insulin sensitizer" that works by making the body
more sensitive to the insulin already produced ... Some research suggests that
high insulin levels can influence cancer growth. Metformin, by not increasing
the body's insulin production, may decrease cancer cells' growth, some experts
say" - Note: Metformin is another one that I take in low dose for
anti-aging. - See
metformin at The Antiaging Store.
-
Coffee and
tea consumption in relation to prostate cancer prognosis - Cancer Causes
Control. 2013 Aug 2 - "Bioactive compounds found in
coffee and tea may delay the progression of prostate cancer ... participants
were men diagnosed with prostate cancer in 2002-2005 in King County, Washington,
USA. We assessed the usual pattern of coffee and tea consumption two years
before diagnosis date ... median follow-up of 6.4 years ... Coffee consumption
was associated with a reduced risk of prostate cancer recurrence/progression;
the adjusted HR for ≥4 cups/day versus ≤1 cup/week was 0.41 (95 % CI: 0.20,
0.81; p for trend = 0.01). Approximately 14 % of patients consumed one or more
cups of tea per day, and tea consumption was unrelated to prostate cancer
recurrence/progression"
-
Fish Oil's Link to Prostate
Cancer Unproven - Medscape, 7/26/13 - "The bottom
line is that we cannot determine from this study design whether the intake of
omega-3 fatty acids will cause prostate cancer and raise a man's risk for
high-grade disease. The media has taken this and sensationalized the risk
associated with omega-3 fatty acid intake"
-
Advanced
Prostate Cancer Risk in Relation to Toenail Selenium Levels - J Natl Cancer
Inst. 2013 Jul 22 - "Selenium may prevent advanced
prostate cancer (PCa), but most studies on this topic were conducted in
populations with moderate to high selenium status. We investigated the
association of toenail selenium, reflecting long-term selenium exposure, and
advanced PCa risk in a population from the Netherlands where low selenium status
is widespread ... All cohort members completed a baseline questionnaire, and
approximately 79% of participants provided toenail clippings, which were used
for toenail selenium measurements using instrumental neutron activation
analysis. Incident advanced PCa case subjects from the entire cohort were
identified during 17.3 years of follow-up ... Toenail selenium was associated
with a reduced risk of advanced PCa; adjusted hazard ratio for the highest vs
lowest quintile was 0.37 (95% CI = 0.27 to 0.51; P trend < .001). For stage IV
PCa, men in the highest vs lowest quintile of toenail selenium had an adjusted
hazard ratio of 0.30 (95% CI = 0.21 to 0.45; P trend < .001)" - See
se-methylselenocysteine at Amazon.com.
-
Not just industry slamming omega-3-prostate cancer links - Nutra USA,
7/15/13 - "So what you’re left with at the end of the
day is an association that at best is very weak and further weakened by the fact
that they didn’t account for the known predictors of prostate cancer, when they
were making this calculation"
-
Omega-3 Prostate Cancer Study Flawed - Don't Believe All You Read -
prostate.net, 7/12/13 - "This is a common phenomenon
when a contradictory study hits the media. It happened in 2012 with saw palmetto
... The same thing happened with SELECT trial regarding vitamin E in 2011 ...
When faced with opposing evidence, readers must use common sense and read
between the lines. Don’t let one study form your opinion. Look for other sources
to support a study before forming an opinion and find out specifically what form
of a treatment was studied and other factor that could affect outcome. There are
flaws in many studies"
-
How
a SELECTed Bad Study Became Big News - Dr. Michael Murray, 7/12/13 -
"This study is not consistent with other studies
(discussed below) ... There is no evidence that anybody in this study took fish
oil supplements or even ate fish ... In usual circumstances, plasma levels of
EPA and DHA reflect very recent intake and are
considered a poor biomarker of long-term omega-3 intake ... Patients with
prostate cancer may have only recently increased their fish and/or fish oil
consumption ... Fish and fish oil ingestion produces a big rise in plasma
omega-3 levels in about 4.5 hours and washes out around 48 hours ... The data
may reflect cancer activity rather than a causative association. Without dietary
history or documentation of fish oil use there is no way of knowing"
-
Experts slam omega-3 link to prostate cancer as 'scaremongering' - Nutra
USA, 7/12/13 - "if the findings of the new study were
true, "then prostate cancer would be rampant in any country with high seafood
consumption (Scandinavia, Japan etc) and conversely, low level consumption
should be protective"
-
Plasma phospholipid fatty
acids, dietary fatty acids and prostate cancer risk - Int J Cancer. 2013 Apr
11 - "Animal and experimental studies have demonstrated
that long-chain n-3 fatty acids inhibit the development of prostate cancer,
whereas n-6 fatty acids might promote it ... Collaborative Cohort Study using a
random sample of 1,717 men and 464 prostate cancer cases to investigate
associations between fatty acids assessed in plasma phospholipids (PPLs) or diet
(estimated using a 121-item food frequency questionnaire) and prostate cancer
risk ... Prostate cancer risk was positively associated with %PPL saturated
fatty acids (SFAs); HR [95% CI] = 1.51 [1.06, 2.16] (Q5 vs. Q1, fifth vs. first
quintile); p-trend = 0.003. HRs (Q5 to Q2 vs. Q1) were significantly elevated
for %PPL palmitic acid. %PPL oleic acid was inversely associated with risk, HR =
0.62 [0.43, 0.91] (Q5 vs. Q1); p-trend = 0.04. No statistically significant
linear trends were observed for dietary intakes. The HRs were elevated for
moderate intakes of linoleic acid (Q2 and Q3 vs. Q1, 1.58 [1.10, 2.28] and 1.70
[1.18, 2.46], respectively), but the increase was not significant for higher
intakes (Q4 and Q5). No association varied significantly by tumour
aggressiveness (all p-homogeneity > 0.1). Prostate cancer risk was positively
associated with %PPL SFA, largely attributable to palmitic acid and inversely
associated with %PPL monounsaturated fatty acids, largely attributable to oleic
acid. Higher risks were also observed for dietary n-6 polyunsaturated fats,
primarily linoleic acid"
-
Food Supplement Linked to
Lower PSA in Prostate Cancer - Medscape, 6/10/13 -
"A commercially available food supplement that contains pomegranate, broccoli,
green tea, and turmeric significantly lowers prostate-specific antigen (PSA)
levels ... made headlines around the world and caused the polyphenol-rich
supplement, known as Pomi-T (nature Medical Products), to sell out within hours
... to receive the supplement 3 times a day for 6 months or placebo ... At
6-month follow-up, the median increase in PSA was 63.8% lower in the supplement
groups than in the placebo group (14.7% vs 78.5; P =.0008). In addition, PSA
levels were stable or lower than baseline more often in the supplement group
(46% vs 14%" - Note: I've already been taking most of the ingredients
separately plus it probably avoids some of the mark-up.
-
Coffee and
risk of prostate cancer incidence and mortality in the Cancer of the Prostate in
Sweden Study - Cancer Causes Control. 2013 May 24 -
"Mean coffee intake was 3.1 cups per day among both cases and controls. Coffee
intake was not associated with overall prostate cancer risk. Risk of fatal
prostate cancer was inversely, but not statistically significantly, associated
with coffee intake, with an odds ratio of 0.64 [95 % confidence interval (CI)
0.34-1.19, p value for linear trend = 0.81] for men consuming greater than 5
cups per day compared to men drinking less than 1 cup per day. The highest
intake of coffee was associated non-significantly with lower risk of advanced
disease (OR = 0.73, 95 % CI 0.41-1.30, p trend = 0.98) and associated
significantly with lower risk of high-grade cancer (Gleason 8-10; OR = 0.50, 95
% CI 0.26-0.98, p trend = 0.13). Risk of localized, grade 7, and low-grade
cancers was not associated with coffee intake"
-
Serum folate
and prostate-specific antigen in the United States - Cancer Causes Control.
2013 May 24 - "Using data from the 2007 to 2010 National
Health and Nutrition Examination Survey, a total of 3,293 men aged 40 years and
older with serum PSA and folate measures were studied ... OR associated with
fifth to first quintile of folate level = 0.42 ... Results of this study suggest
that higher folate status may be protective against elevated PSA levels among
men without diagnosed prostate cancer" - See
folic acid products at Amazon.com.
-
A low
dietary ratio of omega-6 to omega-3 Fatty acids may delay progression of
prostate cancer - Nutr Cancer. 2013;65(4):556-62 -
"High amounts of omega-6 fatty acids have been linked with increased prostate
cancer risk, whereas omega-3 fatty acids have been shown to inhibit PCa growth.
However, because omega-3 and omega-6 are both essential fatty acids and part of
a complete diet, it is more relevant to determine the ideal ratio of the two
that would allow patients to benefit from the therapeutic properties of omega-3
fatty acids. LNCaP prostate cancer cells were treated with dietary-based ratios
of omega-6 to omega-3 fatty acids under hormone-deprivation conditions, and
effects on various cellular processes were determined. A low omega-6 to omega-3
PUFA ratio can delay the progression of cells toward castration-resistance by
suppressing pathways involved in prostate cancer progression, such as the
Akt/mTOR/NFκB axis. It also suppresses the expression of cyclin D1, and
activation of caspase-3 and annexin V staining shows induction of proapoptotic
events. Taken together, our data demonstrates that maintaining a low omega-6 to
omega-3 fatty acids ratio can enhance efficacy of hormone ablation therapy"
- See
Mega Twin EPA at Amazon.com
and
Jarrow Max DHA at Amazon.com.
-
Soy and
tomato may be effective in preventing prostate cancer - Science Daily,
5/8/13 - "From the time they were 4 to 18 weeks old, the
animals were fed one of four diets: (1) 10 percent whole tomato powder; (2) 2
percent soy germ; (3) tomato powder plus soy germ; and (4) a control group that
ate neither tomato nor soy ... Eating tomato, soy, and the combination all
significantly reduced prostate cancer incidence. But the combination gave us the
best results. Only 45 percent of mice fed both foods developed the disease
compared to 61 percent in the tomato group, and 66 percent in the soy group ...
The results of the mouse study suggest that three to four servings of tomato
products per week and one to two servings of soy foods daily could protect
against prostate cancer" - See
Jarrow Lyco-Sorb (contains Lyco-O-Mato) at Amazon.com.
-
Can Selenium Lower Risk of Advanced Prostate Cancer? - WebMD, 4/9/13 -
"But that study looked at men with normal selenium
levels when they entered the trial, and it did not focus on a specific type of
prostate cancer. This latest study looked only at men who were deficient in
selenium and tracked only cases of advanced prostate cancer, which is linked
with a poor prognosis ... Among a group of almost 60,000 men aged 55 to 69 at
the beginning of the study, the researchers found that men with the highest
selenium levels, as measured in toenail clippings, had more than a 60 percent
reduced risk for advanced prostate cancer" - See
se-methylselenocysteine at Amazon.com
which seems to be the recommended form from what I've read over the years.
-
Dietary Fat,
Fatty Acids, and Risk of Prostate Cancer in the NIH-AARP Diet and Health Study
- Cancer Epidemiol Biomarkers Prev. 2013 Apr;22(4):697-707 -
"NIH-American Association of Retired Persons (AARP) Diet
and Health Study. Diet was assessed at baseline with self-administered
food-frequency questionnaires ... Total fat and mono- and polyunsaturated fat
intakes were not associated with incidence of prostate cancer. Saturated fat
intake was related to increased risk of advanced prostate cancer (HRQuintile 5
vs. Qunitile 1 (Q1 vs. Q5), 1.21; 95% CI, 1.00-1.46; Ptrend = 0.03) and fatal
prostate cancer (HRQ5 vs. Q1, 1.47; 95% CI, 1.01-2.15; Ptrend = 0.04).
α-Linolenic acid (ALA) intake was related to increased risk of advanced prostate
cancer (HRQ5 vs. Q1, 1.17; 95% CI, 1.04-1.31; Ptrend = 0.01). Eicosapentanoic
acid (EPA) intake was related to decreased risk of fatal prostate cancer (HRQ5
vs. Q1, 0.82; 95% CI, 0.64-1.04; Ptrend = 0.02)"
- See
Mega Twin EPA at Amazon.com
and
Jarrow Max DHA at Amazon.com.
-
Dietary
patterns as predictors of prostate cancer in Jamaican men - Nutr Cancer.
2013 Apr;65(3):367-74 - "Four food patterns were
identified: a "vegetable and legume" pattern, a "fast food" pattern, a "meat"
pattern, and a "refined carbohydrate" pattern. Men in the highest tertile for
the refined carbohydrate pattern, characterized by high intakes of rice, pasta,
sugar sweetened beverages, and sweet baked foods were at increased risk of total
prostate cancer [odds ratio (OR) = 2.02; 95% confidence interval (CI) =
1.05-3.87 (Ptrend = 0.029)] and low-grade disease [OR = 2.91; 95% CI = 1.18-7.13
(Ptrend = 0.019)] compared with men in the lowest tertile. The vegetable and
legumes pattern (healthy), meat pattern, or fast food pattern were not
associated with prostate cancer risk"
-
Coffee
consumption and risk of localized, advanced and fatal prostate cancer: a
population-based prospective study - Ann Oncol. 2013 Mar 18 -
"A population-based cohort of 44,613 Swedish men aged
45-79 years was followed up from January 1998 through December 2010 ... For
localized PCa, each one cup increase in daily coffee consumption was associated
with a 3% reduced risk [sub-hazard ratio (SHR) = 0.97, 95% confidence interval
(CI) = 0.95-0.99]. For advanced and fatal PCa, we found a non-significant
inverse association; each one cup increase was associated with a 2% reduced risk
of advanced [SHR (95% CI) = 0.98 (0.95-1.02)] and fatal PCa [SHR (95% CI) = 0.98
(0.93-1.03)]"
-
Micronutrient intake and risk of prostate cancer in a cohort of middle-aged,
Danish men - Cancer Causes Control. 2013 Mar 22 -
"This study evaluates associations between intake of vitamin C, E, folate, and
beta-carotene and prostate cancer risk ... Danish prospective cohort study of
26,856 men aged 50-64 years ... Supplemental folic acid was inversely associated
with prostate cancer risk, notably on a continuous scale [HR 0.88 (95 % CI
0.79-0.98) per 100 μg increase/day]. The risk reduction was largely confined to
non-aggressive tumors [HR 0.71 (0.55-0.93) per 100 μg increase/day]. No
influence on prostate cancer risk was observed for dietary folate or for the
other studied micronutrients, regardless of source" - See
folic acid products at Amazon.com.
-
How
vitamin E can help prevent cancer - Science Daily, 3/16/13 -
"In this new work, researchers showed in prostate cancer
cells that one form of vitamin E inhibits the activation of an enzyme that is
essential for cancer cell survival. The loss of the enzyme, called Akt, led to
tumor cell death. The vitamin had no negative effect on normal cells ... Vitamin
E occurs in numerous forms based on their chemical structure, and the most
commonly known form belongs to a variety called tocopherols. In this study,
researchers showed that, of the tocopherols tested, the gamma form of tocopherol
was the most potent anti-cancer form of the vitamin ... The researchers began
the work with both alpha and gamma forms of the vitamin E molecule. Both
inhibited the enzyme called Akt in very targeted ways, but the gamma structure
emerged as the more powerful form of the vitamin" - See
Jarrow FamilE (contains all eight members of the vitamin E family, includes
Tocomin) at Amazon.com.
-
Using
genetic proxies for lifecourse sun exposure to assess the causal relationship of
sun exposure with circulating vitamin D and prostate cancer risk - Cancer
Epidemiol Biomarkers Prev. 2013 Feb 25 - "Individuals
who tend to burn are more likely to spend less time in the sun and consequently
have lower plasma vitamin D levels and higher susceptibility to prostate cancer"
- See
vitamin D at Amazon.com.
-
Associations
of tea and coffee consumption with prostate cancer risk - Cancer Causes
Control. 2013 Feb 15 - "We studied associations of tea
and coffee consumption with PCa risk in a population-based case-control study
from King County, Washington, USA. Prostate cancer cases were diagnosed in
2002-2005 and matched to controls by 5-year age groups ... The analysis of tea
included 892 cases and 863 controls, and tea consumption was associated with a
reduced overall PCa risk with an adjusted OR of 0.63 (95 % CI: 0.45, 0.90; P for
trend = 0.02) for men in the highest compared to lowest category of tea intake
(≥2 cups/day vs. ≤1 cup/week). Risk estimates did not vary substantially by
Gleason grade or disease stage. Coffee consumption was not associated with risk
of overall PCa or PCa in subgroups defined by tumor grade or stage" - See
green tea extract at Amazon.com.
-
Exercise
linked with reduced prostate cancer risk in Caucasians but not African-Americans
- Science Daily, 2/11/13 - "Lionel L. Bañez, MD, of the
Durham Veterans Affairs Medical Center, and his colleagues asked 307 men (164
white; 143 black) undergoing a prostate biopsy to complete a survey that
assessed their exercise amounts per week ... Among Caucasians, men who were
moderately or highly active were 53% less likely to have biopsy results
indicating that they had prostate cancer compared with men who were sedentary or
mildly active ... Among men with cancer, those who exercised had a 13% reduced
risk of having high grade disease"
-
Eating
deep-fried food linked to increased risk of prostate cancer - Science Daily,
1/28/13 - "men who reported eating French fries, fried
chicken, fried fish and/or doughnuts at least once a week were at an increased
risk of prostate cancer as compared to men who said they ate such foods less
than once a month ... In particular, men who ate one or more of these foods at
least weekly had an increased risk of prostate cancer that ranged from 30 to 37
percent. Weekly consumption of these foods was associated also with a slightly
greater risk of more aggressive prostate cancer ... Deep frying may trigger
formation of carcinogens in food ... Foods cooked with high heat also contain
high levels of advanced glycation endproducts, or AGEs, which have been
associated with chronic inflammation and oxidative stress. Deep-fried foods are
among the highest in AGE content. A chicken breast deep fried for 20 minutes
contains more than nine times the amount of AGEs as a chicken breast boiled for
an hour, for example"
-
Follow-Up to REDUCE Study Shows Low Rate of Prostate Cancer Diagnosis -
Science Daily, 1/22/13 - "The four-year REDUCE
(REduction by DUtasteride of prostate Cancer Events) clinical study evaluated
prostate cancer risk reduction in men taking dutasteride, a 5-alpha-reductase
inhibitor (5ARI) typically used to treat enlarged prostate ... dutasteride
decreased the risk of biopsy detectable prostate cancer by 22.8 percent compared
to a placebo group ... few new prostate cancers were detected during the
two-year follow-up in either treatment group and no deaths were reported.
However, the former dutasteride group produced double the number of cancers than
the former placebo group (14 vs. 7). Investigators hypothesize that any prostate
cancer that may have been suppressed by dutasteride during REDUCE was no longer
being suppressed for those subjects who did not continue on 5ARI therapy ...
Overall, men in either group who took a 5ARI during the follow-up study tended
to have fewer cancers" - See dutasteride at
OffshoreRx1.com.
-
Metformin and Prostate
Cancer: Reduced Development of Castration-resistant Disease and Prostate Cancer
Mortality - Eur Urol. 2012 Dec 14 -
"castration-resistant prostate cancer (CRPC) ... prostate-specific
antigen-recurrence-free survival (PSA-RFS), distant metastases-free survival
(DMFS), prostate cancer-specific mortality (PCSM), overall survival (OS) ...
With a median follow-up of 8.7 yr, the 10-yr actuarial rates for metformin,
diabetic non-metformin, and nondiabetic patients for PCSM were 2.7%, 21.9%, and
8.2% (log-rank p ≤ 0.001), respectively. Metformin use independently predicted
(correcting for PSA, T stage, Gleason score, age, diabetic status, and
androgen-deprivation therapy use) improvement in all outcomes compared with the
diabetic non-metformin group; PSA-RFS (hazard ratio [HR]: 1.99 [1.24-3.18];
p=0.004), DMFS (adjusted HR: 3.68 [1.78-7.62]; p<0.001), and PCSM (HR: 5.15
[1.53-17.35]; p=0.008). Metformin use was also independently associated with a
decrease in the development of CRPC in patients experiencing biochemical failure
compared with diabetic non-metformin patients (odds ratio: 14.81 [1.83-119.89];
p=0.01)" - See
metformin at The Antiaging Store.
-
High
Fiber Diet Prevents Prostate Cancer Progression, Study Shows - Science
Daily, 1/9/13 - "The rate of prostate cancer occurrence
in Asian cultures is similar to the rate in Western cultures, but in the West,
prostate cancer tends to progress, whereas in Asian cultures it does not. Why?
.... the answer may be a high-fiber diet ... The study compared mice fed with of
inositol hexaphosphate (IP6), a major component of high-fiber diets, to control
mice that were not. Then the study used MRI to monitor the progression of
prostate cancer in these models ... The study's results were really rather
profound. We saw dramatically reduced tumor volumes, primarily due to the
anti-angiogenic effects of IP6 ... Basically, feeding with the active ingredient
of a high-fiber diet kept prostate tumors from making the new blood vessels they
needed to supply themselves with energy" - See
IP-6 products at Amazon.com.
-
Effect of
Physical Activity and Sedentary Behavior on Serum Prostate-Specific Antigen
Concentrations: Results From the National Health and Nutrition Examination
Survey (NHANES), 2003-2006 - Mayo Clin Proc. 2013 Jan;88(1):11-21 -
"Individuals who engage in more sedentary behavior and
lower levels of light physical activity have higher PSA concentrations"
-
Whole Milk
Intake Is Associated with Prostate Cancer-Specific Mortality among U.S. Male
Physicians - J Nutr. 2012 Dec 19 - "28-y follow-up
... Physicians' Health Study ... The intake of total dairy products was
associated with increased PCa incidence [HR = 1.12 (95% CI: 0.93, 1.35); >2.5
servings/d vs. ≤0.5 servings/d]. Skim/low-fat milk intake was positively
associated with risk of low-grade, early stage, and screen-detected cancers,
whereas whole milk intake was associated only with fatal PCa [HR = 1.49 (95% CI:
0.97, 2.28); ≥237 mL/d (1 serving/d) vs. rarely consumed]. In the survival
analysis, whole milk intake remained associated with risk of progression to
fatal disease after diagnosis [HR = 2.17 (95% CI: 1.34, 3.51)]"
-
Effects of
EPA, γ-linolenic acid or coenzyme Q10 on serum prostate-specific antigen levels:
a randomised, double-blind trial - Br J Nutr. 2012 Nov 30:1-8 -
"A total of 504 healthy men with serum PSA level ≤ 2.5
ng/ml were recruited into the study ... Participants were randomly assigned to a
daily dietary supplement containing n-3 fatty acids (1.12 g of EPA and 0.72 g of
DHA per capsule) (group 1, n 126), n-6 fatty acid (600 mg γ-linolenic acid (GLA)
each capsule) (group 2, n 126), CoQ10 (100 mg per capsule) (group 3, n 126) or a
similar regimen of placebo (group 4, n 126) for 12 weeks ... EPA treatment
significantly reduced serum PSA level by 30.0 (95 % CI 25, 36) % (P = 0.004)
from baseline. In contrast, GLA therapy significantly increased serum PSA
concentration by 15.0 (95 % CI 11, 20) % (P = 0.02). CoQ10 therapy also
significantly reduced serum PSA level by 33.0 (95 % CI 27, 40) % (P = 0.002). In
multivariable analysis, serum values of PSA were strongly correlated with
duration of EPA (r - 0.62; 95 % CI - 0.42, - 0.77; P = 0.003), n-6 (r 0.42; 95 %
CI 0.31, 0.58; P = 0.02) and CoQ10 use (r - 0.77; 95 % CI - 0.56, - 0.87; P =
0.001). There were also significant correlations between serum values of DHA,
EPA, GLA and CoQ10 and serum PSA levels. The present study demonstrates that
dietary supplements containing EPA, GLA or CoQ10 may significantly affect serum
PSA levels" - See
ubiquinol products at Amazon.com
and
Mega Twin EPA at Amazon.com.
-
Protective
effects of low calcium intake and low calcium absorption vitamin D receptor
genotype in the California Collaborative Prostate Cancer Study - Cancer
Epidemiol Biomarkers Prev. 2012 Nov 5 - "High calcium
intake is consistently associated with increased prostate cancer risk in
epidemiologic studies ... Among both Blacks and Whites, we observed a threshold
for calcium intake (604 mg/day) below which prostate cancer risk declined
sharply ... Our findings support the hypothesis that genetic determinants of
calcium absorption influence prostate cancer risk and may contribute to racial
disparities in prostate cancer incidence and mortality rates"
-
Green
tea reduced inflammation, may inhibit prostate cancer tumor growth, research
finds - Science Daily, 10/18/12 - "researchers
randomly assigned the men to either six cups of brewed green tea or water daily
for three to eight weeks, depending on the timing of their surgery ... The data
showed that serum prostate-specific antigen (PSA) concentrations were
significantly lower at the end of the study compared with baseline levels in men
consuming green tea. In addition, prostate tissue PSA protein expression was
lower in men assigned to green tea consumption compared with the control group
at the end of the study ... Further, immunostaining analysis revealed that
nuclear factor kappa B, a marker of inflammation, was significantly reduced in
those men assigned to green tea compared with those in the control group"
- See
green tea extract at Amazon.com.
-
Increased flavonoid intake reduced risk for aggressive prostate cancer -
Science Daily, 10/17/12 - "Men with the highest total
intake of flavonoids had a 25 percent lower risk for aggressive prostate cancer
compared with those men with the lowest flavonoid intake ... higher total
flavonoid intake was associated with reduced odds for aggressive prostate cancer
in both African-American and European-American men, but no individual subclass
of flavonoids appeared to be protective independently, suggesting that it is
important to consume a variety of plant-based foods in the diet, rather than to
focus on one specific type of flavonoid or flavonoid-rich food" - See
Garden of Life, Radical Fruits Antioxidant Complex at Amazon.com.
-
Prostate
cancer: Curcumin curbs metastases, study shows - Science Daily, 10/12/12 -
"The new study was designed to investigate the efficacy of curcumin in the
prevention of prostate cancer metastases, and to determine the agent's mechanism
of action ... curcumin may be useful in the prevention of breast and prostate
cancers -- which are both linked to inflammation -- and in reducing their
metastatic potential ... This does not mean that the compound should be seen as
a replacement for conventional therapies. However, it could play a positive role
in primary prevention -- before a full-blown tumor arises -- or help to avert
formation of metastases. In this context the fact that the substance is well
tolerated is very important, because one can safely recommend it to individuals
who have an increased tumor risk" - See
curcumin products at Amazon.com.
-
Tadalafil :
In the Treatment of Signs and Symptoms of Benign Prostatic Hyperplasia with or
without Erectile Dysfunction - Drugs Aging. 2012 Sep;29(9):771-81 -
"Once-daily tadalafil 5 mg was effective in treating the
signs and symptoms of benign prostatic hyperplasia (BPH). In phase III trials in
men with BPH, the mean change from baseline to week 12 in the total
International Prostate Symptom Score (IPSS; primary endpoint) was significantly
greater in those treated with once-daily tadalafil 5 mg than with placebo.
Improvements in total IPSS that occurred over the initial 12 weeks of tadalafil
treatment were maintained with continued treatment over a 1-year period in an
open-label extension study. Moreover, tadalafil was effective in treating both
erectile dysfunction (ED) and the signs and symptoms of BPH in a phase III trial
that specifically enrolled men with both indications. Both the International
Index of Erectile Function-Erectile Function domain score and the total IPSS
(co-primary endpoints) were significantly improved from baseline to week 12
after treatment with once-daily tadalafil 5 mg compared with placebo" -
See tadalafil at
OffshoreRx1.com.
-
Aspirin
May Help Men With Prostate Cancer Live Longer, Study Suggests - Science
Daily, 8/28/12 - "The study looked at almost 6,000 men
in the Cancer of the Prostate Strategic Urologic Research Endeavor (CaPSURE)
database who had prostate cancer treated with surgery or radiotherapy ... The
findings demonstrated that 10-year mortality from prostate cancer was
significantly lower in the group taking anticoagulants, compared to the
non-anticoagulant group -- 3 percent versus 8 percent, respectively. The risks
of cancer recurrence and bone metastasis also were significantly lower. Further
analysis suggested that this benefit was primarily derived from taking aspirin,
as opposed to other types of anticoagulants"
-
Coffee
consumption and prostate cancer risk: further evidence for inverse relationship
- Nutr J. 2012 Jun 13;11(1):42 - "We conducted a
prospective cohort study of 6017 men who were enrolled in the Collaborative
cohort study in the UK between 1970 and 1973 and followed up to 31st December
2007 ... Higher coffee consumption was inversely associated with risk of high
grade but not with overall risk of PC. Men consuming 3 or more cups of coffee
per day experienced 55% lower risk of high Gleason grade disease compared with
non-coffee drinkers in aanalyses adjusted for age and social class (HR 0.45, 95%
CI 0.23-0.90, p value for trend 0.01). This association changed a little after
additional adjustment for Body Mass Index, smoking, cholesterol level, systolic
blood pressure, tea intake and alcohol consumption"
-
Zyflamend, a
Combination of Herbal Extracts, Attenuates Tumor Growth in Murine Xenograft
Models of Prostate Cancer - Nutr Cancer. 2012 Jun 4 -
"Prostate cancer (PrC) is the second deadliest cancer of
males in the United States Hormone deprivation therapy (HDT), a common therapy
for advanced forms of the disease, results in tumor regression; unfortunately,
tumors inevitably become castrate-resistant ... Zyflamend® is a combination of
extracts from multiple herbs, each with reported anticancer properties.
Zyflamend can inhibit growth of various PrC cell lines, but no studies have
investigated its potential use in vivo using a model of castrate-resistant PrC.
In this study, oral doses of Zyflamend at human equivalent doses inhibited
androgen-dependent and castrate-resistant tumor growth in a mouse model that
mimics advanced stages of the disease, and reduced the expression of a number of
biomarkers linked to PrC progression including pAKT, prostate specific antigen,
histone deacetylases, and androgen receptor. In summary, this is the first
article to report that Zyflamend, when provided at human equivalent doses, can
potentiate the effects of hormone deprivation on tumor regression and growth
inhibition of androgen-dependent and castrate-resistant PrC tumors in vivo"
- See
Zyflamend at Amazon.com.
-
Vitamin
E in diet protects against many cancers, study suggests - Science Daily,
4/23/12 - "Our message is that the vitamin E form of
gamma-tocopherols, the most abundant form of vitamin E in the American diet, and
delta-tocopherols, also found in vegetable oils, are beneficial in preventing
cancers while the form of vitamin E, alpha- tocopherol, the most commonly used
in vitamin E supplements, has no such benefit ... the most commonly used form of
vitamin E supplements, alpha-tocopherol, not only did not prevent prostate
cancer, but its use significantly increased the risk of this disease among
healthy men" - See
Jarrow FamilE (contains all eight members of the vitamin E family, includes
Tocomin) at Amazon.com.
-
Vitamin
D-Related Genetic Variation, Plasma Vitamin D, and Risk of Lethal Prostate
Cancer: A Prospective Nested Case-Control Study - J Natl Cancer Inst. 2012
Apr 12 - "The association of vitamin D status with
prostate cancer is controversial; no association has been observed for overall
incidence, but there is a potential link with lethal disease ... Higher 25(OH)D
levels were associated with a 57% reduction in the risk of lethal prostate
cancer (highest vs lowest quartile: odds ratio = 0.43, 95% confidence interval =
0.24 to 0.76)"
- See
vitamin D at Amazon.com.
-
Oral
vitamin D supplements reduced levels of Ki67 in prostate cancer cells -
Science Daily, 3/31/12 - "The results not only point to
the mechanisms by which vitamin D affects the rate of prostate cancer growth,
but also indicate that vitamin D may slow the growth of prostate cancer cells"
- See
vitamin D at Amazon.com.
-
22 : 6n-3
DHA inhibits differentiation of prostate fibroblasts into myofibroblasts and
tumorigenesis - Br J Nutr. 2012 Mar 6:1-9 - "DHA
represents a suitable agent to inhibit prostate myofibroblast differentiation,
invasiveness and EMT, two most important tumour-promoting activities involved in
the progression of prostate cancer cells" - See
Jarrow Max DHA at Amazon.com.
-
Curry
spice component may help slow prostate tumor growth - Science Daily, 2/10/12
- "androgen deprivation therapy (ADT) ... curcumin
suppresses two known nuclear receptor activators, p300 and CPB (or CREB1-binding
protein), which have been shown to work against ADT ... These data demonstrate
for the first time that curcumin not only hampers the transition of
ADT-sensitive disease to castration-resistance, but is also effective in
blocking the growth of established castrate-resistant prostate tumors" -
See
curcumin products at Amazon.com.
-
Fish intake,
cooking practices, and risk of prostate cancer: results from a multi-ethnic
case-control study - Cancer Causes Control. 2011 Dec 30 -
"We observed that high white fish intake was associated
with increased risk of advanced PCA among men who cooked with high-temperature
methods (pan-frying, oven-broiling and grilling) until fish was well done (p
(trend) = 0.001). No associations were found among men who cooked fish at low
temperature and/or just until done"
-
B-DIM
Impairs Radiation-Induced Survival Pathways Independently of Androgen Receptor
Expression and Augments Radiation Efficacy in Prostate Cancer - Cancer Lett.
2011 Dec 9 - "Increased consumption of cruciferous
vegetables is associated with decreased risk in prostate cancer (PCa). The
active compound in cruciferous vegetables appears to be the self dimerized
product [3,3'-diindolylmethane (DIM)] of indole-3-carbinol (I3C). Nutritional
grade B-DIM (absorption-enhanced) has proven safe in a Phase I trial in PCa ...
B-DIM inhibited cell growth in a dose-dependent manner in both PC-3 (AR-) and
C4-2B (AR+) cell lines. B-DIM was effective at increasing radiation-induced cell
killing in both cell lines, independently of AR expression. B-DIM inhibited
NF-κB and HIF-1α DNA activities and blocked radiation-induced activation of
these transcription factors in both PC-3 and C4-2B cells. In C4-2B (AR+) cells,
AR expression and nuclear localization were significantly increased by
radiation. However, B-DIM abrogated the radiation-induced AR increased
expression and trafficking to the nucleus, which was consistent with decreased
PSA secretion. In vivo, treatment of PC-3 prostate tumors in nude mice with
B-DIM and radiation resulted in significant primary tumor growth inhibition and
control of metastasis to para-aortic lymph nodes. These studies demonstrate that
B-DIM augments radiation-induced cell killing and tumor growth inhibition. B-DIM
impairs critical survival signaling pathways activated by radiation, leading to
enhanced cell killing. These novel observations suggest that B-DIM could be used
as a safe compound to enhance the efficacy of radiotherapy for
castrate-resistant PCa" - See
diindolylmethane at Amazon.com.
-
You are
what you eat: Low fat diet with fish oil slows growth of human prostate cancer
cells, study suggests - Science Daily, 10/25/11 -
"Men who ate a low-fat diet with fish oil supplements for four to six weeks
before having their prostate removed had slower cancer-cell growth in their
prostate tissue than men who ate a traditional, high-fat Western diet ... The
short-term study also found that blood obtained from patients after the low-fat,
fish oil diet slowed the growth of prostate cancer cells in a test tube, while
blood from men on the Western diet did not slow cancer growth ... Preclinical
studies suggest that lowering dietary omega-6 fatty acids from corn oil and
increasing omega-3 fatty acids from fish oil decreases the risk of prostate
cancer development and progression," the study states. "We found this diet
intervention resulted in a decrease in omega-6 vs. omega-3 fatty acid ratios in
benign and malignant prostate tissue and a decrease in malignant cell
proliferation" - See
Mega Twin EPA at Amazon.com
and
Jarrow Max DHA at Amazon.com.
-
Vitamin E
and the risk of prostate cancer: the Selenium and Vitamin E Cancer Prevention
Trial (SELECT) - JAMA. 2011 Oct 12;306(14):1549-56 -
"Oral selenium (200 μg/d from L-selenomethionine) with matched vitamin E
placebo, vitamin E (400 IU/d of all rac-α-tocopheryl acetate) with matched
selenium placebo, both agents, or both matched placebos for a planned follow-up
of a minimum of 7 and maximum of 12 years ... This report includes 54,464
additional person-years of follow-up and 521 additional cases of prostate cancer
since the primary report. Compared with the placebo (referent group) in which
529 men developed prostate cancer, 620 men in the vitamin E group developed
prostate cancer (hazard ratio [HR], 1.17; 99% CI, 1.004-1.36, P = .008); as did
575 in the selenium group (HR, 1.09; 99% CI, 0.93-1.27; P = .18), and 555 in the
selenium plus vitamin E group (HR, 1.05; 99% CI, 0.89-1.22, P = .46). Compared
with placebo, the absolute increase in risk of prostate cancer per 1000
person-years was 1.6 for vitamin E, 0.8 for selenium, and 0.4 for the
combination" - Note: The study used rac-α-tocopheryl acetate. See my
vitamin E page for several articles regarding taking only one of the eight
forms of vitamin E. See
Jarrow FamilE (contains all eight members of the vitamin E family, includes Tocomin) at Amazon.com.
-
Zyflamend
Reduces the Expression of Androgen Receptor in a Model of Castrate-Resistant
Prostate Cancer - Nutr Cancer. 2011 Sep 29 - "These
results demonstrated that Zyflamend inhibited IGF-1-stimulated cell growth,
IGF-1R expression, and androgen receptor expression and its nuclear
localization, but these effects were not dependent upon phosphatidylinositol
3-kinase/pAKT signaling. In conclusion, Zyflamend decreased cell proliferation
and inhibited IGF-1R and androgen receptor expression in a phosphatidylinositol
3-kinase/pAKT independent manner" - See
Zyflamend at Amazon.com.
-
Calcium
intake and prostate cancer among African Americans: Effect modification by
vitamin D receptor calcium absorption genotype - J Bone Miner Res. 2011 Sep
1 - "Compared to men in the lowest quartile of calcium
intake, men in the highest quartile had an approximately two-fold increased risk
of localized and advanced prostate cancer (odds ratio [OR]= 2.20, 95% confidence
interval [CI]= 1.40, 3.46), with a significant dose-response. Poor absorbers of
calcium (VDR Cdx2 GG genotype) had a significantly lower risk of advanced
prostate cancer (OR= 0.41, 95% CI = 0.19, 0.90). The gene-calcium interaction
was statistically significant (p = 0.03). Among men with calcium intake below
the median (680 mg/day), carriers of the G allele had an approximately 50%
decreased risk compared to men with the AA genotype. These findings suggest a
link between prostate cancer risk and high intestinal absorption of calcium"
-
Associations
of serum vitamin A and carotenoid levels with markers of prostate cancer
detection among US men - Cancer Causes Control. 2011 Jul 29 -
"Associations of serum vitamin A and carotenoid levels
with markers of prostate cancer detection were evaluated among 3,927 US men,
40-85 years of age, who participated in the 2001-2006 National Health and
Nutrition Examination Surveys. Five recommended definitions of prostate cancer
detection were adopted using total and free prostate-specific antigen (tPSA and
fPSA) laboratory measurements. Men were identified as high risk based on
alternative cutoffs, namely tPSA > 10 ng/ml, tPSA > 4 ng/ml, tPSA > 2.5 ng/ml,
%fPSA < 25%, and %fPSA < 15%. %fPSA was defined as (fPSA÷tPSA)× 100%. Serum
levels of vitamin A (retinol and retinyl esters) and carotenoids (α-carotene,
β-carotene, β-cryptoxanthin, lutein + zeaxanthin, lycopene) were defined as
quartiles and examined as risk/protective factors for PSA biomarkers. Odds
ratios (OR) and 95% confidence intervals (CI) were estimated using binary
logistic models. After adjustment for known demographic, socioeconomic, and
lifestyle confounders, high serum levels of retinyl esters (tPSA > 10 ng/ml: Q4
vs. Q1 → OR = 0.38, 95% CI: 0.14-1.00) and α-carotene (%fPSA < 15%: Q4 vs. Q1 →
OR = 0.49, 95% CI: 0.32-0.76) were associated with a lower odds, whereas high
serum level of lycopene (tPSA > 2.5 ng/ml: Q4 vs. Q1 → OR = 1.49, 95% CI:
1.01-2.14) was associated with a greater odds of prostate cancer detection.
Apart from the three significant associations observed, no other
exposure-outcome association was significant. Monitoring specific antioxidant
levels may be helpful in the early detection of prostate cancer"
-
Impact of
Consumption of Vegetable, Fruit, Grain, and High Glycemic Index Foods on
Aggressive Prostate Cancer Risk - Nutr Cancer. 2011 Jul 20 -
"Here we further investigate such potential
relationships with a case-control study of 982 men (470 more aggressive prostate
cancer cases and 512 control subjects). Comparing the highest to lowest
quartiles of intake, we found that increasing intakes of leafy vegetables were
inversely associated with risk of aggressive prostate cancer [adjusted odds
ratio (OR) = 0.66, 95% CI: 0.46, 0.96; P trend = 0.02], as was higher
consumption of high carotenoid vegetables (OR = 0.71, 95% CI: 0.48, 1.04; P
trend = 0.04). Conversely, increased consumption of high glycemic index foods
were positively associated with risk of aggressive disease (OR = 1.64, 95% CI:
1.05, 2.57; P trend = 0.02). These results were driven by a number of specific
foods within the food groups. Our findings support the hypothesis that diets
high in vegetables and low in high glycemic index foods decrease risk of
aggressive prostate cancer"
-
Green Tea
Extract (Epigallocatechin-3-Gallate) Reduces Efficacy of Radiotherapy on
Prostate Cancer Cells - Urology. 2011 Jun 13 -
"Radiotherapy is effective in inducing apoptosis in DU145 cells, but its effect
was significantly reduced in the presence of EGCG, and this was associated with
an increase in the induction of manganese superoxide dismutase"
-
Androgen-independent Effects of Serenoa repens Extract (Prostasan®) on Prostatic
Epithelial Cell Proliferation and Inflammation - Phytother Res. 2011 Jun 8 -
"Prostasan® inhibited epidermal growth factor (EGF) and
lipopolysaccharide (LPS) induced proliferation of the prostatic epithelial,
androgen independent cell line PC-3. At effective concentrations of 50 µg/mL,
Prostasan® partly displaced EGF from EGF receptor (EGFR) but fully blocked
EGF-induced cell proliferation of PC-3 cells. Similarly, Prostasan® inhibited
LPS-induced proliferation of PC-3 cells without affecting LPS activation of the
NFĸB pathway via toll-like receptor-4 (TLR-4). Additionally, Prostasan® reduced
the constitutive secretion of monocyte chemotactic protein-1 (MCP-1), the
LPS-induced secretion of IL-12 and inhibited MCP-1 and granulocyte-macrophage
colony-stimulating factor (GM-CSF) production in the presence of LPS on PC-3
cells. Taken together, our results suggest that S. repens extracts, in addition
to other reported effects on BPH development and prostatitis, inhibits
EGF-dependent growth and proinflammatory responses of the prostate epithelial
cells" - See
Prostasan at Amazon.com.
-
Omega-3
Fatty Acid Inhibition of Prostate Cancer Progression to Hormone Independence Is
Associated With Suppression of mTOR Signaling and Androgen Receptor Expression
- Nutr Cancer. 2011 Jun 10:1-7 - "We used an in vitro
model of androgen ablation to determine the effect of treatment with omega-3
fatty acids on the progression to an androgen-independent state. The omega-3
fatty acids docosahexaenoic acid (DHA) and eicosapentaenoic acid (EPA) were able
to prevent progression of LNCaP cells while the omega-6 fatty acid arachidonic
acid (AA) actually promoted cell growth under conditions of hormone depletion.
These results correlated with a decrease in the expression of the androgen
receptor as well as suppression of the Akt/mTOR signaling pathway. Connecting
the mechanisms by which omega-3 fatty acids affect phenotypic outcome is
important for effective exploitation of these nutrient agents as a therapeutic
approach"
- See
Mega Twin EPA at Amazon.com
and
Jarrow Max DHA at Amazon.com.
-
Broccoli extract can ‘target’ cancer cells: Study - Nutra USA, 6/15/11 -
"The research, published in Molecular Nutrition and Food
Research, reports for the first time that sulforaphane – one of the primary
phytochemicals in broccoli and other cruciferous vegetables – is able to
selectively target and kill cancer cells, while leaving normal cells healthy and
unaffected ... Here we show for the first time that sulforaphane selectively
targets benign hyperplasia cells and cancerous prostate cells while leaving the
normal prostate cells unaffected"
- [Abstract] - See
sulforaphane at Amazon.com.
-
Study
confirms safety, cancer-targeting ability of nutrient in broccoli, other
vegetables, researchers say - Science Daily, 6/9/11 -
"Sulforaphane, one of the primary phytochemicals in
broccoli and other cruciferous vegetables that helps them prevent cancer, has
been shown for the first time to selectively target and kill cancer cells while
leaving normal prostate cells healthy and unaffected ... Here we show for the
first time that sulforaphane selectively targets benign hyperplasia cells and
cancerous prostate cells while leaving the normal prostate cells unaffected"
- See
sulforaphane at Amazon.com.
-
Mushroom
compound suppresses prostate tumors - Science Daily, 5/22/11 -
"A mushroom used in Asia for its medicinal benefits has
been found to be 100 per cent effective in suppressing prostate tumour
development in mice during early trials ... The compound, polysaccharopeptide
(PSP), which is extracted from the 'turkey tail' mushroom, was found to target
prostate cancer stem cells and suppress tumour formation in mice ... The
findings are quite significant ... Importantly, we did not see any side effects
from the treatment ... He said PSP had been previously shown to possess
anti-cancer properties, and 'turkey tail' mushrooms (known as Coriolus
versicolor or Yun-zhi) had been widely used in Asia for medicinal benefits"
- See
PSP supplement at Amazon.com.
-
Coffee
Consumption and Prostate Cancer Risk and Progression in the Health Professionals
Follow-up Study - J Natl Cancer Inst. 2011 May 17 -
"Coffee contains many biologically active compounds, including caffeine and
phenolic acids, that have potent antioxidant activity and can affect glucose
metabolism and sex hormone levels ... The average intake of coffee in 1986 was
1.9 cups per day. Men who consumed six or more cups per day had a lower adjusted
relative risk for overall prostate cancer compared with nondrinkers (RR = 0.82,
95% confidence interval [CI] = 0.68 to 0.98, P(trend) = .10). The association
was stronger for lethal prostate cancer (consumers of more than six cups of
coffee per day: RR = 0.40, 95% CI = 0.22 to 0.75, P(trend) = .03). Coffee
consumption was not associated with the risk of nonadvanced or low-grade cancers
and was only weakly inversely associated with high-grade cancer. The inverse
association with lethal cancer was similar for regular and decaffeinated coffee
(each one cup per day increment: RR = 0.94, 95% CI = 0.88 to 1.01, P = .08 for
regular coffee and RR = 0.91, 95% CI = 0.83 to 1.00, P = .05 for decaffeinated
coffee). The age-adjusted incidence rates for men who had the highest (≥6 cups
per day) and lowest (no coffee) coffee consumption were 425 and 519 total
prostate cancers, respectively, per 100 000 person-years and 34 and 79 lethal
prostate cancers, respectively, per 100 000 person-years"
-
Coffee
may reduce risk of lethal prostate cancer in men - Science Daily, 5/17/11 -
"The researchers chose to study coffee because it
contains many beneficial compounds that act as antioxidants, reduce
inflammation, and regulate insulin, all of which may influence prostate cancer.
Coffee has been associated in prior studies with a lower risk of Parkinson's
disease, type 2 diabetes, gallstone disease, and liver cancer or cirrhosis ...
Men who consumed the most coffee (six or more cups daily) had nearly a 20% lower
risk of developing any form of prostate cancer ... Men who drank the most coffee
had a 60% lower risk of developing lethal prostate cancer ... Even drinking one
to three cups of coffee per day was associated with a 30% lower risk of lethal
prostate cancer"
-
Aspirin
reduces the risk of cancer recurrence in prostate cancer patients, study
suggests - Science Daily, 5/2/11 - "After 10-years
from completion of treatment, 31% of the men who took aspirin developed
recurrence compared with 39% of non-aspirin users (p=0.0005). There was also a
2% improvement in 10-year prostate cancer related survival associated with
aspirin use with a trend toward statistical significance"
-
Thiazolidenediones induce tumour-cell apoptosis through the Akt-GSK3β pathway
- J Clin Pharm Ther. 2011 Mar 16 - "Prostate cancer is a
major health threat for men. Thiazolidenediones (TZDs) are synthetic ligands of
the peroxisome proliferator-activated receptor γ (PPARγ), and previous studies
have shown that TZDs induce apoptosis of prostate cancer cells independently of
PPARγ activation. However, the exact mechanism of these effects remains unknown
... The apoptosis-inducing effect of TZDs on prostate cancer cells involves the
inhibition of Akt phosphorylation. Furthermore, TZDs induce inactivation of
GSK3β, a multifunctional kinase that mediates essential events promoting
prostate cancer development and acquisition of androgen independence. In
addition, the GSK3β inhibitor lithium chloride sensitizes prostate cancer cells
to TZDs cytotoxicity. What is new and Conclusion: Our data suggest that
modulation of Akt-GSK3β pathway is involved in the cell death pathway engaged by
TZDs in prostate cancer cells. This reveals another possible mechanism of TZDs
on apoptosis in prostate cancer. Inhibition of the Akt-GSK3β cascade may be a
useful approach in prostate cancer" - Got that because I'm going to give
a test on it in next weeks newsletter. The point is that TZDs such as
pioglitazone may help
prevent or slow prostate cancer. See Pioglitazone at
OffshoreRx1.com.
-
Gamma-tocotrienol induces apoptosis and autophagy in prostate cancer cells by
increasing intracellular dihydrosphingosine and dihydroceramide - Int J
Cancer. 2011 Mar 11 - "Although cell-based studies have
shown that γ-tocotrienol (γTE) exhibits stronger anticancer activities than
other forms of vitamin E including γ-tocopherol (γT), the molecular bases
underlying γTE-exerted effects remains to be elucidated ... In agreement with
these cell-based studies, γTE inhibited LNCaP xenograft growth by 53% (P<0.05),
compared with 33% (P = 0.07) by γT, in nude mice. These findings provide a
molecular basis of γTE-stimulated cancer-cell death and support the notion that
elevation of intracellular dihydroceramide and dihydrosphingosine is likely a
novel anticancer mechanism" - See
Jarrow FamilE (contains all eight members of the vitamin E family, includes
Tocomin) at Amazon.com.
-
Selenium may reduce prostate cancer markers: Study - Nutra USA, 2/23/11 -
"The new study tested whether a 6-week supplementation
of 200 micrograms of selenium (in the form of glycinate) affected the activities
of 2 blood selenium enzymes (erythrocyte and plasma GPx) and a marker of
prostate cancer risk (plasma PSA) ... selenium supplementation, but not placebo,
raised both plasma and erythrocyte GPx activities ... selenium glycinate, but
again not placebo, lowered the cancer risk marker of serum PSA" - See
selenium at Amazon.com.
-
Chemopreventative Potential of the Cruciferous Vegetable Constituent Phenethyl
Isothiocyanate in a Mouse Model of Prostate Cancer - J Natl Cancer Inst.
2011 Feb 17 - "This study was undertaken to determine
the chemopreventative efficacy of phenethyl isothiocyanate (PEITC), a bioactive
constituent of many edible cruciferous vegetables, in a mouse model of prostate
cancer, and to identify potential biomarker(s) associated with PEITC response
... Administration of PEITC (3 μmol/g diet) decreased incidence (PEITC diet vs
control diet, mean = 21.65 vs 57.58%, difference = -35.93%, 95% confidence
interval = -45.48% to -13.10%, P = .04) as well as burden (affected area) (PEITC
diet vs control diet, mean = 18.53% vs 45.01%, difference = -26.48%, 95%
confidence interval = -49.78% to -3.19%, P = .02) of poorly differentiated
tumors in the dorsolateral prostate of transgenic mice compared with control
mice, with no toxic effects. PEITC-mediated inhibition of prostate
carcinogenesis was associated with induction of autophagy and overexpression of
E-cadherin in the dorsolateral prostate. However, PEITC treatment was not
associated with a decrease in cellular proliferation, apoptosis induction, or
inhibition of neoangiogenesis. Plasma proteomics revealed distinct changes in
the expression of several proteins (eg, suppression of clusterin protein) in the
PEITC-treated mice compared with control mice. Conclusions In this transgenic
model, dietary PEITC suppressed prostate cancer progression by induction of
autophagic cell death. Potential biomarkers to assess the response to PEITC
treatment in plasma were identified" - See
cruciferous supplements at Amazon.com.
-
Dietary zinc
and prostate cancer survival in a Swedish cohort - Am J Clin Nutr. 2011 Jan
12 - "High dietary zinc intake was associated with a
reduced risk of prostate cancer-specific mortality (HR(Q4 vs Q1): 0.64; 95% CI:
0.44, 0.94; P for trend = 0.05) in the study population. The association was
stronger in men with localized tumors (HR: 0.24; 95% CI: 0.09, 0.66; P for trend
= 0.005). Zinc intake was not associated with mortality from other causes"
- See
Jarrow Zinc Balance at Amazon.com (some studies show that taking zinc can
cause a difficiency of copper).
-
'Longevity' protein SIRT1 may ward off precursor to prostate cancer -
Science Daily, 1/13/11 - "prostatic intraepithelial
neoplasia (PIN) ... deletion of the Sirt1 gene in mice resulted in PIN lesion
formation associated with reduced autophagy, which is the necessary degradation
of a cell's own components and most likely essential for tumor suppression ...
it tells you that this 'longevity' gene is normally blocking prostate cancer"
- Note: Resveratrol increases Sirt1. See
resveratrol products at Amazon.com:
-
Sirtuin1 may boost memory and learning ability; Discovery could lead
to new drugs to fight Alzheimer's, other neurological diseases -
Science Daily, 7/11/10 - "Resveratrol, found
in wine, has been touted as a life-span enhancer because it
activates a group of enzymes known as sirtuins, which have gained
fame in recent years for their ability to slow the aging process.
Now MIT researchers report that Sirtuin1 -- a protein that in humans
is encoded by the SIRT1 gene -- also promotes memory and brain
flexibility ... We have now found that SIRT1 activity also promotes
plasticity and memory"
-
Slowing Aging: Anti-aging Pathway Enhances Cell Stress Response
- Science Daily, 2/19/09 - "The researchers
discovered a new molecular relationship critical to keeping cells
healthy across a long span of time: a protein called SIRT1,
important for caloric restriction and lifespan and activated by
resveratrol, regulates heat shock factor 1 (HSF1), keeping it
active. HSF1 in turn senses the presence of damaged proteins in the
cell and elevates the expression of molecular chaperones to keep a
cell's proteins in a folded, functional state. Regulation of this
pathway has a direct beneficial effect to cells ... decrease in
SIRT1 may help explain why protein misfolding diseases, such as
Alzheimer's, Parkinson's, Huntington's and adult-onset diabetes, are
diseases of aging"
-
Wine Compound Spurs Diabetes Research - WebMD, 11/29/07 -
"In October, Chinese researchers reported
that resveratrol curbs insulin resistance in mice. Insulin is a
hormone that controls blood sugar. Insulin resistance can lead to
type 2 diabetes ... Like resveratrol, the lab-made chemicals
activate a gene called SIRT1, making the diabetic mice more
sensitive to insulin ... the newly developed chemicals are 1,000
times more potent than resveratrol"
-
Lycopene and
Apo-12'-Lycopenal Reduce Cell Proliferation and Alter Cell Cycle Progression in
Human Prostate Cancer Cells - Nutr Cancer. 2011 Jan 3:1 -
"Apo-lycopenals or other lycopene metabolites, whether
produced by cleavage enzymes within the body or consumed with tomato products,
can be found in tissues at concentrations equivalent to physiological retinoid
concentrations ... The present data indicate that lycopene and apo-12'-lycopenal
reduce the proliferation of prostate cancer cells, in part, by inhibiting normal
cell cycle progression" - See
Jarrow Lyco-Sorb (contains Lyco-O-Mato) at Amazon.com.
-
Exercise
may lower risk of death for men with prostate cancer - Science Daily, 1/5/11
- "Compared with men who walked less than 90 minutes per
week at an easy pace, those who walked 90 or more minutes per week at a normal
to very brisk pace had a 46% lower risk of dying from any cause ... Only
vigorous activity -- defined as more than three hours per week -- was associated
with reduced prostate cancer mortality. Men who did vigorous activity had a 61%
lower risk of prostate cancer-specific death compared with men who did less than
one hour per week of vigorous activity"
-
Pomegranate juice components could stop cancer from spreading - Science
Daily, 12/12/10 - "Researchers at the University of
California, Riverside have identified components in pomegranate juice that both
inhibit the movement of cancer cells and weaken their attraction to a chemical
signal that promotes the metastasis of prostate cancer to the bone ... the
researchers identified the following active groups of ingredients in pomegranate
juice that had a molecular impact on cell adhesion and migration in metastatic
prostate cancer cells: phenylpropanoids, hydrobenzoic acids, flavones and
conjugated fatty acids" - See
pomegranate at Amazon.com.
-
Soy may
stop prostate cancer spread: Experimental soy-based drug shows benefits in men
with localized prostate cancer - Science Daily, 11/8/10 -
"A recent phase II randomized study of 38 men with
localized prostate cancer found that genistein, when given once a day as a pill,
one month prior to surgery, had beneficial effects on prostate cancer cells ...
genistein increased the expression of genes that suppress the invasion of cancer
cells and decreased the expression of genes that enhance invasion" - See
genistein at Amazon.com.
-
Rye Whole
Grain and Bran Intake Compared with Refined Wheat Decreases Urinary C-Peptide,
Plasma Insulin, and Prostate Specific Antigen in Men with Prostate Cancer -
J Nutr. 2010 Oct 27 - "Seventeen participants were
provided with 485 g rye whole grain and bran products (RP) or refined wheat
products with added cellulose (WP), corresponding to ~50% of daily energy
intake, in a randomized controlled, crossover design ... We conclude that whole
grain and bran from rye resulted in significantly lower plasma PSA compared with
a cellulose-supplemented refined wheat diet in patients with prostate cancer.
The effect may be related to inhibition of prostate cancer progression caused by
decreased exposure to insulin, as indicated by plasma insulin and urinary
C-peptide excretion"
-
Vitamin E in front line of prostate cancer fight - Science Daily, 10/23/10 -
"the research team have discovered a particular form of
T3, called gamma-tocotrienol (γ-T3), can successfully kill off the prostate
cancer CSCs ... Other research has found γ-T3 is also effective in suppressing
other types of cancer, including breast, colon, liver and gastric ... not all
vitamin E preparations had the active constituent" - See
Jarrow FamilE (contains all eight members of the vitamin E family, includes
Tocomin) at Amazon.com.
-
Soy
isoflavones in conjunction with radiation therapy in patients with prostate
cancer - Nutr Cancer. 2010 Oct;62(7):996-1000 - "Soy
isoflavones sensitize prostate cancer cells to radiation therapy by inhibiting
cell survival pathways activated by radiation. At the same time, soy isoflavones
have significant antioxidant and anti-inflammatory activity, which may help
prevent the side effects of radiation ... Adverse effects of radiation therapy
on bladder, bowel, and sexual function were assessed by a self-administered
quality of life questionnaire at 3 and 6 mo. Only 26 and 27 patients returned
completed questionnaires at 3 and 6 mo, respectively. At each time point,
urinary, bowel, and sexual adverse symptoms induced by radiation therapy were
decreased in the soy isoflavone group compared to placebo group. At 3 mo,
soy-treated patients had less urinary incontinence, less urgency, and better
erectile function as compared to the placebo group. At 6 mo, the symptoms in
soy-treated patients were further improved as compared to the placebo group.
These patients had less dripping/leakage of urine (7.7% in Group 1 vs. 28.4% in
Group 2), less rectal cramping/diarrhea (7.7% vs. 21.4%), and less pain with
bowel movements (0% vs. 14.8%) than placebo-treated patients. There was also a
higher overall ability to have erections (77% vs. 57.1%). The results suggest
that soy isoflavones taken in conjunction with radiation therapy could reduce
the urinary, intestinal, and sexual adverse effects in patients with prostate
cancer" - See
soy isoflavones at Amazon.com.
-
The
effectiveness of dried cranberries ( Vaccinium macrocarpon) in men with lower
urinary tract symptoms Br J Nutr. 2010 Aug 31:1-9 -
"In contrast to the control group, patients in the cranberry group had
statistically significant improvement in International Prostate Symptom Score,
QoL, urination parameters including voiding parameters (rate of urine flow,
average flow, total volume and post-void residual urine volume), and lower total
PSA level on day 180 of the study" - [Nutra
USA] - See
Jarrow Formulas, Cran Clearance at Amazon.com.
-
Nutrients and risk of prostate cancer - Nutr Cancer. 2010
Aug;62(6):710-8 - "Intake of trans fat was
associated with the risk of PCa; the OR for the highest vs. the lowest
quartile was 1.45 (95% CI = 1.16-1.81); the association was apparently
stronger in subjects aged less than 65, normal weight men, and ever smokers.
An increased risk was also observed with increasing intake of sucrose and
disaccharides. In contrast, men in the highest quartile of cholesterol
intake were at lower risk of PCa. No association was found with intake of
total proteins, total fat, monounsaturated fats, polyunsaturated fats,
monosaccharides, and total carbohydrates. The findings provide evidence that
a diet low in trans fat could reduce PCa risk"
-
Mixed
Tocotrienols Inhibit Prostate Carcinogenesis in TRAMP Mice - Nutr
Cancer. 2010 Aug;62(6):789-94 -
"mixed-tocotrienol-fed groups had a lower incidence of tumor formation along
with a significant reduction in the average wet weight of genitourinary
apparatus. Furthermore, mixed tocotrienols significantly reduced the levels
of high-grade neoplastic lesions as compared to the positive controls. This
decrease in levels of high-grade neoplastic lesions was found to be
associated with increased expression of proapoptotic proteins BAD (Bcl(2)
antagonist of cell death) and cleaved caspase-3 and cell cycle regulatory
proteins cyclin dependent kinase inhibitors p21 and p27. In contrast, the
expression of cyclins A and E were found to be decreased in
mixed-tocotrienol groups. Taken together, our results show that by
modulating cell cycle regulatory proteins and increasing expression of
proapoptotic proteins, mixed tocotrienols suppress prostate tumorigenesis in
the TRAMP mice" - See
Jarrow FamilE (contains all eight members of the vitamin E family, includes Tocomin) at Amazon.com.
-
Anti-cancer effects of broccoli ingredient explained - Science Daily,
7/12/10 - "sulforaphane, a chemical found in
broccoli, interacts with cells lacking a gene called PTEN to reduce the
chances of prostate cancer developing"
- See
sulforaphane at Amazon.com.
-
Gamma-tocotrienol as an effective agent in targeting prostate cancer stem
cell-like population - Int J Cancer. 2010 Jul 8 -
"Emerging evidence supports that prostate cancer originates from a rare
sub-population of cells, namely prostate cancer stem cells (CSCs). Conventional
therapies for prostate cancer are believed to mainly target the majority of
differentiated tumor cells but spare CSCs, which may account for the subsequent
disease relapse after treatment. Therefore, successful elimination of CSCs may
be an effective strategy to achieve complete remission from this disease.
Gamma-tocotrienols (gamma-T3) is one of the vitamin-E constituents which have
been shown to have anticancer effects against a wide-range of human cancers.
Recently, we have reported that gamma-T3 treatment not only inhibits prostate
cancer cell invasion but also sensitizes the cells to docetaxel-induced
apoptosis, suggesting that gamma-T3 may be an effective therapeutic agent
against advanced stage prostate cancer. Here, we demonstrate for the first time
that gamma-T3 can down-regulate the expression of prostate CSC markers
(CD133/CD44) in androgen independent (AI) prostate cancer cell lines (PC-3 &
DU145), as evident from western blotting analysis. Meanwhile, the spheroid
formation ability of the prostate cancer cells was significantly hampered by
gamma-T3 treatment. In addition, pre-treatment of PC-3 cells with gamma-T3 was
found to suppress tumor initiation ability of the cells. More importantly, while
CD133-enriched PC-3 cells were highly resistant to docetaxel treatment, these
cells were as sensitive to gamma-T3 treatment as the CD133-depleted population.
Our data suggest that gamma-T3 may be an effective agent in targeting prostate
CSCs, which may account for its anticancer and chemosensitizing effects reported
in previous studies" - See
Jarrow FamilE (contains all eight members of the vitamin E family, includes Tocomin) at Amazon.com.
-
Polyphenols in red wine and green tea halt prostate cancer growth, study
suggests - Science Daily, 6/9/10 - "The profound
impact that the antioxidants in red wine and green tea have on our bodies is
more than anyone would have dreamt just 25 years ago," Weissmann added. "As
long as they are taken in moderation, all signs show that red wine and green
tea may be ranked among the most potent 'health foods' we know." -
See
resveratrol products at Amazon.com
and
green tea extract at Amazon.com.
-
Calcium consumption may cause prostate cancer in Chinese, research suggests
- Science Daily, 6/1/10 - "Results showed a 25
percent increased risk of prostate cancer when comparing those who consumed,
on average, 659 mg vs. 211 mg of total calcium a day ... Major food sources
of calcium in this population consisted of: vegetables (19.3 percent), dairy
(17.3 percent), grain products (14.7 percent), soyfoods (11.8 percent),
fruit (7.3 percent) and fish (6.2 percent). However, the researchers stress
that there was no positive association with prostate cancer risk and any one
particular food source ... Among men with less than average BMI (median BMI
was 22.9 kg/m2), the researchers found a twofold increased risk of prostate
cancer"
-
Effects
of phenylethyl isothiocyanate and its metabolite on cell-cycle arrest and
apoptosis in LNCaP human prostate cancer cells - Int J Food Sci Nutr.
2010 May;11(7):324-36 - "Cruciferous vegetable
consumption is associated with decreased risk of several cancers, including
prostate cancer. Gluconasturtiin, one of the predominant glucosinolates in
cruciferous vegetables, is hydrolyzed to yield phenylethyl isothiocyanate
(PEITC). PEITC absorption and metabolism in humans involves glutathione
conjugation followed by conversion via the mercapturic acid pathway to an
N-acetylcysteine (NAC) conjugate that is excreted in the urine. We observed
an inhibitory effect of PEITC and its metabolite, NAC-PEITC, on cancer cell
proliferation, cell-cycle progression, and apoptosis in LNCaP human prostate
cancer cells. PEITC and NAC-PEITC suppressed LNCaP cell proliferation in a
dose-dependent manner, and exposure to 5 microM PEITC or NAC-PEITC reduced
cell proliferation by 25% and 30%, respectively. Cell-cycle analysis
revealed that cells treated with 5 microM PEITC or NAC-PEITC arrested at the
G(2)/M phase. In addition, the percentage of cells in the S phase decreased
from 46% to 25% following 48 h of incubation with PEITC or NAC-PEITC. The
G(2)/M-phase cell-cycle arrest of LNCaP cells grown in the presence of PEITC
or NAC-PEITC is correlated with the downregulation of Cdk1 and cyclin B(1)
protein expression. Apoptosis was observed at the later stages of 24-h and
48-h treatments with 5 microM PEITC and NAC-PEITC. In conclusion, PEITC and
NAC-PEITC are potential chemopreventive/chemotherapeutic agents against
LNCaP human prostate cancer cells"
-
Lycopene
effects contributing to prostate health - Nutr Cancer. 2009 Nov;61(6):775-83
- "Epidemiological evidence links lycopene consumption
with decreased prostate cancer risk ... Lycopene modulates several of the
aforementioned pathways, providing a promising rationale for prostate cancer
risk reduction by lycopene: In many experimental setups, lycopene reduced
inflammatory signals, prevented oxidative DNA damage, modulated the expression
or activity of IGF axis members, of Wnt/beta-catenin and androgen signalling,
and enhanced gap junctional communication. Lycopene's influence on these
pathways likely contributes to the observed cell growth inhibition and apoptosis
induction by lycopene. A substantial part of the lycopene effects can be
explained by its antioxidant action, but other mechanisms might also be
involved" - See
lycopene at Amazon.com.
-
Fats of any kind may boost prostate cancer risk: Study - Nutra USA,
1/29/10 - "Last year, a study from Harvard reported
that increased intakes of trans-fatty acids may increase the risk of
non-aggressive prostate tumors by about 100 per cent ... the highest blood
levels of trans oleic acid and linoleic acids (18:1n-9t and 18:2t) were
associated with a 116 and 97 per cent increase in the risk of non-aggressive
prostate tumors, respectively, compared to the lowest levels. The study
followed almost 15,000 men over 13 years"
-
Dietary
fat and early-onset prostate cancer risk - Br J Nutr. 2010 Jan 19:1-6 -
"A nutritional database was used to calculate daily
fat intake. A positive, statistically significant risk estimate for the
highest v. lowest quintile of intake of total fat, SFA, MUFA and PUFA was
observed when adjusted for confounding variables: OR 2.53 (95 % CI 1.72,
3.74), OR 2.49 (95 % CI 1.69, 3.66), OR 2.69 (95 % CI 1.82, 3.96) and OR
2.34 (95 % CI 1.59, 3.46), respectively, with all P for trend < 0.001. In
conclusion, there was a positive statistically significant association
between prostate cancer risk and energy-adjusted intake of total fat and fat
subtypes. These results potentially identify a modifiable risk factor for
early-onset prostate cancer"
-
Intakes
of meat, fish, poultry, and eggs and risk of prostate cancer progression
- Am J Clin Nutr. 2009 Dec 30 - "Intakes of
processed and unprocessed red meat, fish, total poultry, and skinless
poultry were not associated with prostate cancer recurrence or progression.
Greater consumption of eggs and poultry with skin was associated with 2-fold
increases in risk in a comparison of extreme quantiles: eggs [hazard ratio
(HR): 2.02; 95% CI: 1.10, 3.72; P for trend = 0.05] and poultry with skin
(HR: 2.26, 95% CI: 1.36, 3.76; P for trend = 0.003). An interaction was
observed between prognostic risk at diagnosis and poultry. Men with high
prognostic risk and a high poultry intake had a 4-fold increased risk of
recurrence or progression compared with men with low/intermediate prognostic
risk and a low poultry intake (P for interaction = 0.003). CONCLUSIONS: Our
results suggest that the postdiagnostic consumption of processed or
unprocessed red meat, fish, or skinless poultry is not associated with
prostate cancer recurrence or progression, whereas consumption of eggs and
poultry with skin may increase the risk"
-
Hops
compound may prevent prostate cancer - Science Daily, 12/9/09 -
"xanthohumol blocks the action of estrogen by
binding to its receptor, which may lead to prevention of breast cancer ...
Since testosterone receptors act similarly to that of estrogen -- by
binding, then stimulating hormone-dependent effects, such as gene expression
and cell growth ... Xanthohumol prevented the receptor from translocating to
the cell nucleus, thus inhibiting its potential to stimulate the secretion
of PSA and other hormone-dependent effects" - See
hops supplements at Amazon.com.
-
Exercise reduces death rate in prostate cancer patients - Science Daily,
12/7/09 - "men who walked four or more hours a week
had a 23 percent lower risk of all-cause mortality compared to men who
walked less than 20 minutes per week. Men who walked 90 or more minutes at a
normal to brisk pace had a 51 percent lower risk of death from any cause
than men who walked less than 90 minutes at an easy walking pace"
-
Coffee May Cut Risk of Prostate Cancer - WebMD, 12/7/09 -
"men who drank the most coffee were nearly 60% less
likely to develop advanced prostate cancer than non-coffee drinkers ... men
who drank decaffeinated coffee also had a similar reduction in aggressive
prostate cancer risk ... coffee also contains many other potentially
beneficial compounds such as antioxidants and minerals that may play a role
in preventing prostate cancer ... Coffee has effects on insulin and glucose
metabolism as well as sex hormone levels, all of which play a role in
prostate cancer"
-
Aspirin May Prevent Prostate Cancer Recurrence - WebMD, 11/6/09 -
"use of anti-clotting drugs, including aspirin,
appears to lower the odds that cancer will recur in men undergoing radiation
treatment for prostate cancer ... taking an anticoagulant lowers the risk
[of recurrence] by almost half"
-
Pomegranate’s prostate protection potential grows - Nutra USA, 10/27/09
- "Pomegranate juice consumption, thus, may be of
considerable advantage in prostate cancer chemoprevention, not only in
patients with a genetic predisposition toward prostate cancer but also in
patients undergoing cancer therapy" - See
pomegranate at Amazon.com.
-
Folate
intake and prostate cancer risk: a case-control study - Nutr Cancer.
2009;61(5):617-28 - "Folate deficiency has been
implicated in the carcinogenesis of several tumor types ... Dietary folate
intake was inversely associated with overall risk of prostate cancer as
compared to clinic controls (P for a linear trend = 0.003). When stratified
by disease severity, dietary folate and folate from natural sources were
associated with reduced risk of high-grade cancer as compared to both clinic
controls (P for a linear trend = 0.0009 and 0.02, respectively) and biopsy
negative controls (P for a linear trend = 0.03 and 0.05, respectively) ...
These analyses support an inverse association between dietary folate intake
and prostate cancer risk and primarily risk of high-grade prostate cancer"
-
Gamma
Tocopherol Upregulates the Expression of 15-S-HETE and Induces Growth Arrest
Through a PPAR Gamma-Dependent Mechanism in PC-3 Human Prostate Cancer Cells
- Nutr Cancer. 2009;61(5):649-62 - "These data
demonstrate that the growth arrest mediated by gamma-tocopherol follows a
PPAR-gamma-dependent mechanism" - See
Jarrow FamilE (contains all eight members of the vitamin E family, includes
Tocomin) at Amazon.com.
-
Resveratrol enhances p53 acetylation and apoptosis in prostate cancer by
inhibiting MTA1/NuRD complex - Int J Cancer. 2009 Oct 6 -
"Our study identifies MTA1 as a new molecular target
of Res that may have important clinical applications for PCa chemoprevention
and therapy, and points to the combination of Res with HDAC inhibitors as an
innovative therapeutic strategy for the treatment of PCa" - See
resveratrol products at Amazon.com.
-
Zinc
Deficiencies A Global Concern - Science Daily, 9/17/09 -
"One new study has found DNA damage in humans caused
by only minor zinc deficiency ... Zinc deficiency is quite common in the
developing world ... studies have shown that zinc is essential to protecting
against oxidative stress and helping DNA repair – meaning that in the face
of zinc deficiency, the body's ability to repair genetic damage may be
decreasing even as the amount of damage is going up ... When prostate glands
become cancerous, their level of zinc drops precipitously, and some studies
have suggested that increasing zinc in the prostate may at least help
prevent prostate cancer and could potentially be a therapeutic strategy.
There are concerns about the relationship of zinc intake to esophageal,
breast, and head and neck cancers. And the reduced zinc status that occurs
with aging may also contribute to a higher incidence of infection and
autoimmune diseases" - See
Jarrow Zinc Balance at Amazon.com.
-
Metformin use and prostate cancer in Caucasian men: results from a
population-based case-control study - Cancer Causes Control. 2009 Aug 4
- "In Caucasian men, metformin use was more common
in controls than in cases (4.7 vs. 2.8%, p = 0.04), resulting in a 44% risk
reduction for PCa (adjusted OR = 0.56; 95% CI 0.32-1.00). No association was
seen in African-American men" - See
metformin at The Antiaging Store.
-
Green
Tea May Slow Prostate Cancer Progression - Science Daily, 6/19/09 -
"According to results of a study published in Cancer
Prevention Research, a journal of the American Association for Cancer Research,
men with prostate cancer who consumed the active compounds in green tea
demonstrated a significant reduction in serum markers predictive of prostate
cancer progression ... Findings showed a significant reduction in serum levels
of HGF, VEGF and PSA after treatment, with some patients demonstrating
reductions in levels of greater than 30 percent" - See
green tea extract at Amazon.com.
-
Diet May
Reduce Risk Of Prostate Cancer - Science Daily, 6/3/09 -
"a diet low in fat, high in vegetables and fruit, and
avoiding high energy intake, excessive meat, and excessive dairy products and
calcium intake may be helpful in preventing prostate cancer, and for patients
diagnosed with prostate cancer ... Specifically, consumption of tomatoes,
cauliflower, broccoli, green tea, and vitamins including Vitamin E and selenium
seemed to propose a decreased risk of prostate cancer. Consumption of highly
processed or charcoaled meats, dairy products, and fats seemed to be correlated
with prostate cancer"
-
Carbohydrate Restriction May Slow Prostate Tumor Growth - Science Daily,
5/26/09 - "The researchers believe that insulin and
insulin-like growth factor contribute to the growth and proliferation of
prostate cancer, and that a diet devoid of carbohydrates lowers serum insulin
levels in the bodies of the mice, thereby slowing tumor growth"
-
Vitamin D
deficiency and insufficiency among patients with prostate cancer - BJU Int.
2009 Apr 4 - "The frequency of vitamin D deficiency (<20
ng/mL) and insufficiency (20-31 ng/mL) was 40% and 32% in men with recurrent
prostate; 28% had vitamin D levels that were normal (32-100 ng/mL). Among men
with localized prostate cancer, 18% were deficient, 50% were insufficient and
32% were normal. Among controls, 31% were deficient, 40% were insufficient and
29% were normal" - See
vitamin D at Amazon.com.
-
Pomegranate Juice May Slow Prostate Cancer - WebMD, 4/26/09 -
"All of the men drank 8 ounces of pomegranate juice
daily, and that slowed down the time it took for their PSA levels to double ...
Fifteen of the patients stayed with the study for up to 64 months (a little more
than five years), and it typically took four times longer for their PSA levels
to double when they were drinking pomegranate juice, compared to their PSA
doubling time at the study's start" - See
pomegranate at Amazon.com.
-
Serum
calcium and the risk of prostate cancer - Cancer Causes Control. 2009 Apr 18
- "These data do not support the hypothesis that high
serum calcium levels is a risk factor for prostate cancer. On the contrary, the
data suggest that high serum levels of calcium in young overweight men may be a
marker for a decreased risk of developing prostate cancer"
-
Serum
Retinol and Prostate Cancer Risk: a Nested Case-Control Study in the Prostate,
Lung, Colorectal, and Ovarian Cancer Screening Trial - Cancer Epidemiol
Biomarkers Prev. 2009 Mar 31 - "Vitamin A (retinol)
plays a key role in the regulation of cell growth and differentiation, and has
been studied as a potential chemopreventive agent for prostate cancer ... the
highest versus lowest concentrations of serum retinol were associated with a 42%
reduction in aggressive prostate cancer risk (Ptrend = 0.02), with the strongest
inverse association for high-grade disease (Gleason sum >7; odds ratio, 0.52;
95% confidence interval, 0.32-0.84; Ptrend = 0.01)"
-
Vitamin K and prostate cancer – study supports benefits - Nutra USA, 3/31/09
- "increased intakes of vitamin K2, but not K1, were
associated with a 35 per cent reduction in prostate cancer risk. The potential
benefits of K2 were more pronounced for advanced prostate cancer ... A higher
ratio of undercarboxylated osteocalcin (ucOC) to intact total osteocalcin (iOC)
is indicative of poorer vitamin K status ... of ucOC and iOC were analysed from
serum samples, and every 0.1 increment in the ratio was associated with a 38 per
cent increase in advanced-stage prostate cancer, and a 21 per cent increase in
high-grade prostate cancer" - [Abstract]
- See
vitamin K at Amazon.com.
-
Fatty Fish May Cut Prostate Cancer Risk - WebMD, 3/24/09 -
"Men in the study who ate one or more servings of fatty
fish a week were found to have a 63% lower risk for developing aggressive
prostate cancer than men who reported never eating fish"
- See
Mega Twin EPA at Amazon.com
and
Jarrow Max DHA at Amazon.com.
-
Folic Acid May Raise Prostate Cancer Risk - WebMD, 3/10/09 -
"Men in the study who took high doses of the vitamin had
a more than twofold increase in prostate cancer risk, compared to men who did
not take folic acid supplements"
-
Differential
Effects of Selenium on Benign and Malignant Prostate Epithelial Cells:
Stimulation of LNCaP Cell Growth by Noncytotoxic, Low Selenite Concentrations
- Nutr Cancer. 2009;61(2):251-64 - "Thus, noncytotoxic
selenite concentrations did not induce growth inhibition or apoptosis
selectively in prostate cancer cells. Growth stimulation of LNCaP cells by low
concentrations suggests the possibility of adverse effects of selenium
supplementation on hormone sensitive prostate cancer, whereas inhibition of PC-3
cell proliferation at noncytotoxic concentrations suggests potential benefit of
selenium in advanced prostate cancer"
-
Intake of
plant foods and associated nutrients in prostate cancer risk - Nutr Cancer.
2009;61(2):216-24 - "Plant foods and associated
nutrients may impact prostate cancer (PC) risk and survival ... Reduced PC risk
was associated with the highest tertile of cryptoxanthin (OR = 0.51; 95% CI =
0.35-0.75), fiber (OR = 0.56; 95% CI = 0.35-0.89), vitamin C (OR = 0.60; 95% CI
= 0.41-0.88), and fruits and/or fruit juices (OR = 0.46; 95% CI = 0.31-0.68),
with significant linear trends. Increased risk of PC was associated with the
highest tertile of protein (OR = 1.99; 95% CI = 1.05-3.79) and daily servings of
grains (OR = 1.99; 95% CI = 1.23-3.22) with significant linear trends"
-
Zinc intake
from supplements and diet and prostate cancer - Nutr Cancer.
2009;61(2):206-15 - "Ten-year average intake of
supplemental zinc was not associated with a reduced prostate cancer risk overall
(adjusted hazard ratio (HR) = 0.82 (95% confidence interval (CI) 0.58-1.14) for
>15mg/day vs. nonuse, P for trend = 0.44); however, risk of advanced prostate
cancer (regionally invasive or distant metastatic, n = 123) decreased with
greater intake of supplemental zinc (adjusted HR = 0.34, 95% CI = 0.13-1.09 for
10-yr average intake > 15 mg/day vs. nonuse, P for trend = 0.04). Dietary zinc
was not associated with prostate cancer. In this prospective cohort, long-term
supplemental zinc intake was associated with reduced risk of clinically relevant
advanced disease"
-
New Lab
Evidence Suggests Preventive Effect Of Herbal Supplement In Prostate Cancer
- Science Daily, 2/23/09 - "Combining DHEA with
transforming growth factor beta-1 increased testosterone production in the
stromal cells and prostate specific antigen protein secretion two to four-fold
and gene expression up to 50-fold in the cancer cells. When these cell cultures
were treated with red clover isoflavones, the androgenic effects of DHEA were
reversed" - See
Trinovin at Amazon.com.
-
Soy
consumption and prostate cancer risk in men: a revisit of a meta-analysis -
Am J Clin Nutr. 2009 Feb 11 - "Our analysis of studies
on soy intake yielded a combined RR/OR of 0.74"
-
Eicosapentaenoic acid inhibits voltage-gated sodium channels and invasiveness in
prostate cancer cells - Br J Pharmacol. 2009 Jan 16 -
"Treatment with EPA inhibited I(Na) directly and also
indirectly, by down-regulation of Na(v) mRNA expression in prostate cancer
cells, thus inhibiting their metastatic potential" - See
Mega Twin EPA at Amazon.com.
-
Serum
undercarboxylated osteocalcin as biomarker of vitamin k intake and risk of
prostate cancer: a nested case-control study in the heidelberg cohort of the
European prospective investigation into cancer and nutrition - Cancer
Epidemiol Biomarkers Prev. 2009 Jan;18(1):49-56 - "From
cell studies, Vitamin K is known to exert anticancer effects on a variety of
cancer cell lines, including prostate cancer cells. Recently, we reported an
inverse association between dietary intake of menaquinones (vitamin K(2)), but
not phylloquinone (vitamin K(1)), and risk of prostate cancer ... There was
indication of a lower prostate cancer risk in carriers of the A allele (compared
with GG carriers) of the +2255 VKORC1 polymorphism with increasing menaquinone
intake (P(interaction) = 0.14) whereas no distinct effect modification was
observed for the ucOC/iOC ratio (P(interaction) = 0.37). The increased risks of
advanced-stage and high-grade prostate cancer with higher serum ucOC/iOC ratio
strengthen the findings for dietary menaquinone intake" - See
vitamin K at Amazon.com.
-
Study supports pomegranate’s anti-prostate cancer potential - Nutra USA,
1/6/09 - "the average doubling time increased from an
average of 15 months to 54 months for the men drinking the pomegranate juice"
- [Abstract] - See
pomegranate at Amazon.com.
-
Pomegranate polyphenols down-regulate expression of androgen-synthesizing genes
in human prostate cancer cells overexpressing the androgen receptor - J Nutr
Biochem. 2008 Dec;19(12):848-55 - "A twofold suppression
of gene expression was considered statistically significant. Pomegranate
polyphenols inhibited gene expression and AR most consistently in the LNCaP-AR
cell line (P=.05). Therefore, inhibition by pomegranate polyphenols of gene
expression involved in androgen-synthesizing enzymes and the AR may be of
particular importance in androgen-independent prostate cancer cells and the
subset of human prostate cancers where AR is up-regulated" - See
pomegranate at Amazon.com.
-
gamma-Tocopherol-enriched mixed tocopherol diet inhibits prostate carcinogenesis
in TRAMP mice - Int J Cancer. 2008 Oct 27 - "8 week
old TRAMP males were fed 0.1% gamma-T-enriched mixed tocopherol diet that
contained 20-fold higher levels of gamma-tocopherol, and roughly 3-fold higher
levels of alpha-tocopherol ... Treatment with gamma-T-enriched mixed tocopherols
significantly suppressed the incidence of palpable tumor and Prostate
Intraepithelial Neoplasia (PIN) development without affecting the expression of
the transgene (SV-40) ... gamma-T-enriched mixed tocopherols significantly
up-regulated the expression of Nrf2 and its related detoxifying and antioxidant
enzymes thereby suppressing PIN and tumor development" - Note: One
previous study was done with alpha-tocopherol. I cannot understand why they did
that when the previous research also supported the gamma unless they didn't do
any homework at all before planning the study. See
Jarrow FamilE (contains all eight members of the vitamin E family, includes
Tocomin) at Amazon.com.
-
Vitamin and
mineral use and risk of prostate cancer: the case-control surveillance study
- Cancer Causes Control. 2008 Dec 18 - "For use of
multivitamins that did not contain zinc, the multivariable odds ratios of
prostate cancer were 0.6 for 1-4 years, 0.8 for 5-9 years, and 1.2 for 10 years
or more, respectively (p for trend = 0.70). Men who used zinc for ten years or
more, either in a multivitamin or as a supplement, had an approximately two-fold
(OR = 1.9"
-
Flaxseed
Supplementation (Not Dietary Fat Restrict...[Cancer Epidemiol Biomarkers Prev.
2008] - PubMed Result - Cancer Epidemiol Biomarkers Prev. 2008
Dec;17(12):3577-3587 - "Men were on protocol an average
of 30 days. Proliferation rates were significantly lower (P < 0.002) among men
assigned to the flaxseed arms. Median Ki-67-positive cells/total nuclei ratios
(x100) were 1.66 (flaxseed-supplemented diet) and 1.50 (flaxseed-supplemented,
low-fat diet) versus 3.23 (control) and 2.56 (low-fat diet) ... Findings suggest
that flaxseed is safe and associated with biological alterations that may be
protective for prostate cancer"
-
Characterizing components of the Saw Palmetto Berry Extract (SPBE) on prostate
cancer cell growth and traction - Biochem Biophys Res Commun. 2008 Dec 4 -
"Saw Palmetto Berry Extract (SPBE) ... The results show
for the first time the potential of SPBE, beta-sitosterol and stigmasterol as
potential anti-tumor agents" - See
beta sitosterol at Amazon.com
and
saw palmetto at Amazon.com.
-
Oily fish may boost prostate cancer survival rate: Study - Nutra USA,
11/24/08 - "The prospective cohort study with 20,167 men
also found that men who ate five portions of fish per week had a 48 per cent
improved survival rate from the disease than men who consumed only one portion
per week" - [Abstract]
- See
Mega Twin EPA at Amazon.com
and
Jarrow Max DHA at Amazon.com.
-
A
22-y prospective study of fish intake in relation to prostate cancer incidence
and mortality - Am J Clin Nutr. 2008 Nov;88(5):1297-303 -
"Survival analysis among the men diagnosed with prostate
cancer revealed that those consuming fish >or=5 times/wk had a 48% lower risk of
prostate cancer death than did men consuming fish less than once weekly
[relative risk (RR) = 0.52; 95% CI: 0.30, 0.91; P for trend = 0.05]. A similar
association was found between seafood n-3 fatty acid intake and prostate cancer
mortality (RR(Q5 versus Q1) = 0.64; 95% CI: 0.42, 0.99; P for trend = 0.02).
These associations became stronger when the analyses were restricted to
clinically detected cases"
- See
Mega Twin EPA at Amazon.com
and
Jarrow Max DHA at Amazon.com.
-
Men Who
Take Aspirin Have Significantly Lower PSA Levels - Science Daily, 11/16/08 -
"PSA levels were 9 percent lower in men taking aspirin
(the NSAID most commonly used) compared with men who did not use aspirin"
-
Suppression
of androgen receptor signaling and prostate specific antigen expression by
(-)-epigallocatechin-3-gallate in different progression stages of LNCaP prostate
cancer cells - Cancer Lett. 2008 Oct 31 - "EGCG
suppressed cell proliferation, prostate specific antigen (PSA) expression, and
AR transcriptional activity in the different LNCaP sublines. Intraperitoneal
administration of EGCG also suppressed the growth of relapsing R1Ad tumors and
decreased tumor-derived serum PSA. Effects of EGCG on tumor PSA expression have
the potential to affect accurate monitoring of patient tumor burden by serum PSA
measurement" - See
green tea extract at Amazon.com.
-
Prostate Cancer: Vitamin E, Selenium No Help - WebMD, 10/28/08 -
"That evidence included a 1998 Finnish study of whether
vitamin E could prevent lung cancer in some 30,000 smokers. It didn't, but men
taking vitamin E had 32% fewer prostate cancers ... I am afraid it will be the
end of the story for large trials of vitamin E and selenium to prevent prostate
cancer" - Note: Most of the vitamin E studies I've read on prostate
cancer indicated that only the gamma-tocopherol worked yet they spent $114
million on this study and used the cheapest synthetic dl-alpha-tocopherol
acetate form. How dumb was that? I don't know what the story on the selenium
was. Some say it's because people in the U.S. aren't deficient in selenium.
See my comments in my
10/29/08 newsletter.
-
Too Much
Calcium In Blood May Increase Risk Of Fatal Prostate Cancer - Science Daily,
9/3/08 - "Comparing men in the top third with men in the
bottom third, we found a significantly increased hazard for fatal prostate
cancer"
-
Broccoli May Cut Prostate Cancer Risk - WebMD, 7/1/08 - [Science
Daily] - "men who regularly ate broccoli showed more
changes in gene expression suggestive of a reduced risk of cancer"
-
New Treatment for Prostate Cancer? - Dr. Weil, 7/1/08
-
Dietary Agents for Chemoprevention of Prostate Cancer - oncologystat.com,
6/16/08 - "In this review, we have summarized the
findings from clinical and preclinical studies on dietary agents including green
tea, pomegranate, lupeol, fisetin, and delphinidin that are currently being
investigated in our laboratory for their chemopreventive potential against CaP"
- Click here
for the review but it is 172 pages in the .pdf format.
-
Legume and isoflavone intake and prostate cancer risk: The Multiethnic Cohort
Study
- Int J Cancer. 2008 Jun 2 - "legume intake is
associated with a moderate reduction in prostate cancer risk and that the
isoflavones in soy products are probably not responsible for this effect"
-
Protective role of 1 alpha, 25-dihydroxyvitamin D3 against oxidative stress in
nonmalignant human prostate epithelial cells - Int J Cancer. 2008 Jun
15;122(12):2699-706 - "1,25-VD can protect nonmalignant
prostate cells from oxidative stress-induced cell death by elimination of
ROS-induced cellular injuries through transcriptional activation of G6PD
activity. The antioxidative effect of vitamin D strengthens its roles in cancer
chemoprevention and adds to a growing list of beneficial effects of vitamin D
against cancer" - See vitamin D at Amazon.com. I'd go
with the
vitamin D 2000 IU at Amazon.com.
-
Reducing
Intake Of Dietary Fat Prevents Prostate Cancer In Mice - Science Daily,
5/15/08 - "focused on fat from corn oil, which is made
up primarily of omega-6 fatty acids, or the polyunsaturated fat commonly found
in the Western diet ... Researchers fed one group of mice a diet with about 40
percent of calories coming from fat, a percentage typical in men eating a
Western diet. The other group received 12 percent of their calories from fat, a
figure considered to be a very low fat diet. Researchers found there was a 27
percent reduced incidence of prostate cancer in the low-fat diet group. Aronson
also studied cells in the prostate that were precancerous, or would soon become
cancer, and found that the cells in the mice eating the low-fat diet were
growing much more slowly than those in the high-fat group"
-
Prostates protected by vitamin D: study - Nutra USA, 5/14/08 -
"In this study, we have demonstrated that 1,25-(OH)2D
can protect nonmalignant human prostate epithelial cells against H2O2-induced
cell death through modulating the ROS defense systems, suggesting a possible
role of 1,25-(OH)2D in prostate cancer prevention" - See
vitamin D at Amazon.com.
-
Enterolactone restricts
the proliferation of the LNCaP human prostate cancer cell line in vitro -
Mol Nutr Food Res. 2008 Apr 8;52(5):567-580 - "The
capacity of a pure mammalian lignan, enterolactone (ENL) ... the
antiproliferative activity of ENL is a consequence of altered expression of cell
cycle associated genes and provides novel molecular evidence for the
antiproliferative properties of a pure lignan in prostate cancer"
-
Vitamin
D Protects Cells From Stress That Can Lead To Cancer - Science Daily,
5/13/08 - "By inducing a specific gene to increase
expression of a key enzyme, vitamin D protects healthy prostate cells from the
damage and injuries that can lead to cancer" - See
vitamin D at Amazon.com.
-
In
vivo and in vitro regulation of syndecan 1 in prostate cells by N-3
polyunsaturated fatty acids - J Biol Chem. 2008 Apr 30 -
"These findings indicate that syndecan 1 is upregulated by n-3 fatty acids by a
transcriptional pathway involving PPARgamma. This mechanism may contribute to
the chemopreventive properties of n-3 fatty acids in prostate cancer" -
See
Mega Twin EPA at Amazon.com.
-
A 12
week, open label, phase I/IIa study using apatone for the treatment of prostate
cancer patients who have failed standard therapy - Int J Med Sci. 2008 Mar
24;5(2):62-7 - "oral Apatone (Vitamin C and Vitamin K3)
administration in the treatment of prostate cancer ... 5,000 mg of VC and 50 mg
of VK3 each day ... At the conclusion of the 12 week treatment period, PSAV
decreased and PSADT increased in 13 of 17 patients (p < or = 0.05). There were
no dose-limiting adverse effects. Of the 15 patients who continued on Apatone
after 12 weeks, only 1 death occurred after 14 months of treatment"
-
Exercise
May Lead To Faster Prostate Tumor Growth - Science Daily, 4/13/08
-
Vitamin K2 linked to lower prostate cancer risk - Nutra USA, 4/9/08 -
"While no reduction in the risk of prostate cancer was
observed for vitamin K1 (phylloquinone), an increased intake of all menaquinones
(vitamin K2) was associated with a 35 per cent reduction in risk" - See
vitamin K at Amazon.com.
-
Calcitriol as a chemopreventive and therapeutic agent in prostate cancer: role
of anti-inflammatory activity - J Bone Miner Res. 2007 Dec;22 Suppl 2:V74-80
- "Calcitriol, the hormonally active form of vitamin D,
inhibits the growth and development of several cancers ... We conclude that
calcitriol exerts several anti-inflammatory actions in prostate cells, which
contribute to its potential as a chemopreventive and therapeutic agent in PCa"
- See
vitamin D at Amazon.com.
-
Soy
Compound May Halt Spread Of Prostate Cancer - Science Daily, 3/14/08 -
"the amount of the chemical, an antioxidant known as
genistein, used in the experiments was no higher than what a human would eat in
a soybean-rich diet ... genistein decreased metastasis of prostate cancer to the
lungs by 96 percent compared with mice that did not eat the compound in their
chow" - See
soy isoflavones at Amazon.com.
-
Effects of One-Year Treatment with Isoflavone Extract from Red Clover on
Prostate, Liver Function, Sexual Function, and Quality of Life in Men with
Elevated PSA Levels and Negative Prostate Biopsy Findings - Urology. 2008
Feb;71(2):185-90 -
"isoflavonoid extract from red clover ... daily 60-mg
dose of an isoflavone extract for 1 year ... The average PSA level was 10.16
ng/mL at baseline versus 7.15 ng/mL after 12 months, for a statistically
significant reduction of 33% ... The sexual hormone levels did not change
throughout the study. We registered a significant increase in all three liver
transaminases after 3 months"
-
Finding the Right Prostate Cancer Diet - WebMD, 2/15/08 -
"poultry and eggs double the risk of prostate cancer
progression ... orange and yellow vegetables, such as squash, yams, and carrots,
and cruciferous vegetables, such as broccoli, cut the risk of recurrence by
about half ... If you eat chicken or poultry, eat it without the skin ... the
men's overall PSA doubling time was nearly four times slower after they began
drinking pomegranate juice"
-
Men Who
Are Continually Active At Work May Have Decreased Prostate Cancer Risk, Study
Suggests - Science Daily, 2/13/08 - "The message
from this study for today is that if you’re more active, you may be able to
prevent this cancer from happening"
-
Ellagitannin-rich pomegranate extract inhibits angiogenesis in prostate cancer
in vitro and in vivo - Int J Oncol. 2008 Feb;32(2):475-80 -
"pomegranate extract standardized to ellagitannin
content (POMx) ... POMx decreased prostate cancer xenograft size, tumor vessel
density, VEGF peptide levels and HIF-1alpha expression after 4 weeks of
treatment in SCID mice. These results demonstrate that an ellagitannin-rich
pomegranate extract can inhibit tumor-associated angiogenesis as one of several
potential mechanisms for slowing the growth of prostate cancer in
chemopreventive applications" - See
pomegranate at Amazon.com.
-
More support for lycopene's prostate benefits - Nutra USA, 1/9/08 -
"At the end of the six month intervention period ...
levels of prostate-specific antigen (PSA), a marker of prostate health, were
reduced in the lycopene group showing improvements in health of the tissue.
However, no changes were recorded in the placebo group ... Moreover, no
enlargement of the prostate occurred in the lycopene group, whereas growth
was observed in the placebo group" - [Abstract]
- See
Jarrow Lyco-Sorb at Amazon.com.
-
Lycopene inhibits disease progression in patients with benign prostate
hyperplasia - J Nutr. 2008 Jan;138(1):49-53 -
"Whereas progression of prostate enlargement occurred in the placebo group as
assessed by trans-rectal ultrasonography (P < 0.05) and digital rectal
examination (P < 0.01), the prostate did not enlarge in the lycopene group.
Symptoms of the disease, as assessed via the International Prostate Symptom
Score questionnaire, were improved in both groups with a significantly greater
effect in men taking lycopene supplements" - See
Jarrow Lyco-Sorb at Amazon.com.
-
Nonfat
Milk Linked to Prostate Cancer - Medscape, 1/2/08 -
"Intake of calcium and vitamin D has little or no impact on the risk of prostate
cancer, but consumption of low fat or nonfat milk may increase the risk of the
malignancy ... low fat or nonfat milk increased the risk of localized or
low-grade tumors, while whole milk decreased this risk"
-
J Nutr. 2008 Jan;138(1):49-53Lycopene Inhibits Disease Progression in Patients
with Benign Prostate Hyperplasia - J Nutr. 2008 Jan;138(1):49-53 -
"Symptoms of the disease, as assessed via the
International Prostate Symptom Score questionnaire, were improved in both groups
with a significantly greater effect in men taking lycopene supplements. In
conclusion, lycopene inhibited progression of BPH" - See
Jarrow Lyco-Sorb (contains Lyco-O-Mato) at Amazon.com.
-
Green tea may cut prostate cancer risk - USATODAY.com, 12/20/07 -
"those who drank five or more cups of green tea a
day reduced their risk of having progressive prostate cancer by half,
compared with those who drank a cup or less"
- See
green tea extract at Amazon.com.
-
Dietary patterns and surgically treated benign prostatic hyperplasia: a case
control study in Western Australia - BJU Int. 2007 Dec 5 -
"BPH risk was not associated with the 'Health
Conscious' or 'Western' patterns, but there was a lower risk with an
increasing score for the 'Vegetable' pattern (odds ratio 0.78, 95%
confidence interval 0.63-0.98). BPH risk was significantly and inversely
related to the intake of total vegetables, dark yellow vegetables, other
vegetables, tofu and red meat. There was a higher risk of BPH with
increasing intake of high-fat dairy products"
-
High
Carb Diet Linked to Prostate Tumor Growth - Science Daily, 11/27/07 -
"A diet high in refined carbohydrates, like white
rice or white bread, is associated with increased prostate tumor growth in
mice ... Having too much insulin in the blood, a condition called
hyperinsulinemia, is associated with poorer outcomes in patients with
prostate cancer"
-
Lycopene and soy isoflavones in the treatment of prostate cancer - Nutr
Cancer. 2007;59(1):1-7 - "The data suggest that
lycopene and soy isoflavones have activity in prostate cancer patients with
PSA relapse disease and may delay progression of both hormone-refractory and
hormone-sensitive prostate cancer"
-
Plasma carotenoids and prostate cancer: a population-based case-control
study in Arkansas - Nutr Cancer. 2007;59(1):46-53 -
"This study added to the emerging evidence that high
circulating levels of lycopene, lutein/zeaxanthin, and beta-cryptoxanthin
are associated with a low risk of prostate cancer" - See
Jarrow Formulas, CarotenALL, Mixed Carotenoid Complex at Amazon.com.
-
Docosahexaenoic acid (DHA), a primary tumor suppressive omega-3 fatty acid,
inhibits growth of colorectal cancer independent of p53 mutational status
- Nutr Cancer. 2007;58(2):178-87 - "Taken together,
these findings suggest DHA is the primary tumor suppressive omega-3 fatty
acid in vivo and in vitro and inhibits cancer growth by p53 dependent and
independent pathways, while the marginal inhibition by EPA is p53
independent" - See
Jarrow Max DHA at Amazon.com.
-
Lycopene and lutein inhibit proliferation in rat prostate carcinoma cells
- Nutr Cancer. 2007;58(2):171-7 - "These studies are
consistent with epidemiological studies that show inverse relationships of
these carotenoids with prostate cancer" - See
Jarrow Formulas, CarotenALL, Mixed Carotenoid Complex at Amazon.com.
-
A
Low-carb Diet May Stunt Prostate Tumor Growth - Science Daily, 11/13/07
-
Onion and garlic intake and the odds of benign prostatic hyperplasia -
Urology. 2007 Oct;70(4):672-6 - "Compared with
nonusers, the multivariate ORs for the highest category of onion and garlic
intake were 0.41 ... This uniquely large data set from European populations
showed an inverse association between allium vegetable consumption and BPH"
-
Green tea may halve prostate cancer risk - Nutra USA, 10/12/07 -
"Drinking five or more cups a day was associated
with a 48 per cent reduction in advanced prostate cancer risk, compared to
drinking less than one cup per day" - [Abstract]
- See
green tea extract at Amazon.com.
-
Green Tea Consumption and Prostate Cancer Risk in Japanese Men: A
Prospective Study - Am J Epidemiol. 2007 Sep 29 -
"The multivariate relative risk was 0.52 (95%
confidence interval: 0.28, 0.96) for men drinking 5 or more cups/day
compared with less than 1 cup/day (p(trend) = 0.01). Green tea may be
associated with a decreased risk of advanced prostate cancer" - See
green tea extract at Amazon.com.
-
Full-fat dairy may protect prostates from cancer - Nutra USA, 10/10/07 -
"when the researchers considered intakes of specific
dairy products they noted a significant 12 per cent reduction in total
prostate cancer risk by increased whole milk consumption. On the other hand,
low-/nonfat milk was related to 16 per cent increased risk"
-
Prostate Cancer Survival Varies by Season - washingtonpost.com, 10/7/07
- "Summer and autumn months correspond to times when
vitamin D is highest (in Norway). Although the study does not prove vitamin
D is the determining factor, it does suggest that this possibility should be
studied further ... Compared with men diagnosed in the summer and fall,
those diagnosed in the winter and spring were 20 percent more likely to die
within three years after diagnosis" - See
vitamin D at Amazon.com.
-
Diet
And Medications May Assist Prevention Of Prostate Cancer - Science
Daily, 9/24/07 - "dutasteride,
has reduced by 50 percent the number of cancerous biopsies among men with
benign prostatic hypertrophy ... In one study of
selenium, the incidence of prostate cancer was reduced by 49 percent
over ten years ... Data already suggests novel uses of statins, commonly
prescribed cholesterol-lowering agents, and insulin modulating drugs, such
as metformin or the glitazones" - See dutasteride at
OffshoreRx1.com.
-
Pomegranate Juice vs. Prostate Cancer? - WebMD, 9/20/07 -
"The prostate tumors grew more slowly in the mice
that got the pomegranate juice orally or by injection, compared with mice
that got the placebo"
-
Pomegranate extracts may inhibit prostate cancer growth - Nutra USA,
9/3/07
-
Red
Wine Compound Shown To Prevent Prostate Cancer - Science Daily, 8/31/07
- "n the study resveratrol-fed mice showed an 87
percent reduction in their risk of developing prostate tumors that contained
the worst kind of cancer-staging diagnosis ... Other mice in the study,
those fed resveratrol but still developed a less-serious form of prostate
cancer, were 48 percent more likely to have their tumor growth halted or
slowed when compared to mice who did not consume the compound ... A cancer
prevention researcher lives for these days when they can make that kind of
finding" - See
resveratrol products at Amazon.com.
-
Pectin shows potential against prostate cancer - Nutra USA, 8/22/07 -
"The new study looked at the effect of different
forms of pectin - commercially available fractionated pectin powder (FPP),
citrus pectin (CP), and pH-modified CP (PectaSol) - on hormone- (androgen)
responsive and androgen-independent human prostate cancer cells ... the FPP
induced apoptosis (programmed cell death) by about 40 fold, compared to
non-treated cells, for both types of cancer cell" - [Abstract]
- See
pectin supplements at Amazon.com.
-
The Effect of High Calcium Levels on Prostate Cancer - Physician's
Weekly, 8/13/07 - "the relative risk of prostate
cancer for 2,000 mg/day or more of calcium intake was 1.63. Conversely, a
1.26 relative risk calculation was observed for ingestion of less than 1,000
mg/day of calcium"
-
Broccoli May Help Cut Prostate Cancer - WebMD, 7/24/07 -
"Men who reported eating cauliflower more than once
per week were 52% less likely to be diagnosed with aggressive prostate
cancer than men who reported eating cauliflower less than once a month ...
Men who reported eating broccoli more than once per week were 45% less
likely to be diagnosed with aggressive prostate cancer than men who reported
eating broccoli less than once a month" - See
indole-3-carbinol at Amazon.com.
-
Dietary Isoflavones May Protect against Prostate Cancer in Japanese Men
- J Nutr. 2007 Aug;137(8):1974-1979 - "Isoflavones
and their aglycones (genistein and daidzein) were significantly associated
with decreased risk. The odds ratio for the highest category (>/=89.9 mg/d)
compared with the lowest category (<30.5 mg/d) of isoflavone intake was 0.42
(95% CI = 0.24-0.72) and the linear trend was significant"
-
Omega-3 Fatty Acids May Help Slow Prostate Cancer Growth - Science
Daily, 6/21/07
-
Omega-3 Fatty Acids May
Lower Genetic Risk for Prostate Cancer - Medscape, 6/21/07 -
"Overall, diets rich in
omega-3 fatty acids reduced prostate tumor growth, slowed
histopathological progression, and increased survival, the researchers
write. The 12-month survival rate was 60% for mice fed a diet high in
omega-3, 10% on the low–omega-3 diet, and 0% on the high–omega-6 diet. The
ideal ratio of omega-6 to omega-3 fatty acids is 1:1, and mice fed diets
with this ratio of fatty acids were able to delay both the formation and
progression of prostate tumors and prolong their survival" - See Twinlab Mega Twin EPA at Amazon.com
or Jarrow Max DHA at Amazon.com.
-
Prostate Cancer
Confusion? - Dr. Weil, 6/18/07 - "while these
investigators concluded that on the basis of their retrospective analytical
methods lycopene and other carotenoids had no effect on prostate cancer, we
have very good evidence from other studies that lycopene does in fact lower
the risk"
-
Supplemental and dietary vitamin e intakes and risk of prostate cancer in a
large prospective study - Cancer Epidemiol Biomarkers Prev. 2007
Jun;16(6):1128-35 - "dietary gamma-tocopherol, the
most commonly consumed form of vitamin E in the United States, was
significantly inversely related to the risk of advanced prostate cancer (for
highest versus lowest quintile: RR, 0.68" - See
Jarrow FamilE (contains all eight members of the vitamin E family, includes
Tocomin) at Amazon.com.
-
Flaxseed May Curb Prostate Tumor Growth - WebMD, 6/4/07 -
"As measured by how fast their cancer cells were
dividing, tumors grew about 30% to 40% slower in the men taking flaxseed"
-
Red
Wine Protects The Prostate - Science Daily, 5/25/07 -
"men who drink an average of four to seven glasses
of red wine per week are only 52% as likely to be
diagnosed with prostate cancer as those who do not drink red wine ... when
white wine was compared with red, red had the most benefit ... But much of
the speculation focuses on chemicals—including various
flavonoids and
resveratrol—missing from other alcoholic beverages"
-
Study: Vitamins tied to prostate cancer - USA Today, 5/15/07 -
"Overall, the researchers found no link between
multivitamin use and early-stage prostate cancer ... perhaps high-dose
vitamins had little effect until a tumor appeared, and then could spur its
growth"
-
Nutrients In Certain Vegetables May Provide Cancer-fighting Benefit -
Science Daily, 4/17/07 - "Dr. Singh's study is based
on phytochemicals, called isothiocyanates (ITCs), found in several
cruciferous vegetables and generated when vegetables are either cut or
chewed. His laboratory has found that phenethyl-ITC, or PEITC, is highly
effective in suppressing the growth of human prostate cancer cells at
concentrations achievable through dietary intake"
-
Tea and lycopene protect against prostate cancer - Asia Pac J Clin Nutr.
2007;16 Suppl:453-7 - "The protective effect of
green tea was significant (odds ratio 0.14, 95% CI: 0.06-0.35) for the
highest quartile relative to the lowest after adjusting for total vegetables
and fruits intakes and other potential confounding factors. Intakes of
vegetables and fruits rich in lycopene were also inversely associated with
prostate cancer risk (odds ratio 0.18 ... habitual drinking tea and intakes
of vegetables and fruits rich in lycopene could lead to a reduced risk of
prostate cancer in Chinese men. Together they have a stronger preventive
effect than either component taken separately"
-
Report: Advances In Prostate Cancer Chemoprevention And Treatment - Life
Extension Magazine, 4/07
-
The relationship between daily calcium intake and bone mineral density in
men with prostate cancer - BJU Int. 2007 Apr;99(4):812-816 -
"To analyse the relationship between daily calcium
intake (DCI) and bone mineral density (BMD) in patients with prostate cancer
... androgen-deprivation therapy (ADT) ... a low DCI was an independent risk
factor for osteoporosis in men with prostate cancer ... Urologists should
recommend a DCI of >1000 mg in patients with prostate cancer, especially in
those under ADT"
-
Soy
Found Protective Against Localized Prostate Cancer - Science Daily,
3/15/07 - "intake of genistein, daidzein, miso soup
and soy food had no overall link to diagnosis of prostate cancer. However,
they calculated that the risk of developing localized prostate cancer was 50
percent lower in men who ate the most isoflavones compared to men who ate
the least meaning that men in the top category ate between two and three
times as much isoflavone-rich food"
-
Soy isoflavones linked to lower prostate cancer risk - Nutra USA, 3/8/07
- "The highest intake of soy isoflavones (at least
32.8 milligrams of genistein per day) had a 40 per cent reduced risk
compared to those with the lowest intake (less than 13.2 mg/d)"
-
Green Tea And COX-2 Inhibitors Combine To Slow Growth Of Prostate Cancer
- Science Daily, 3/1/07 - "In mice that were not
treated with either substance, the tumor volume averaged 1,300 cubic
millimeters, whereas mice given either the
tea or celecoxib had tumors averaging 835
cubic millimeters and 650 cubic millimeters, respectively. Tumors taken from
mice given both agents, however, measured on average a volume of 350 cubic
millimeters" - See
Jarrow Green Tea at Amazon.com.
-
Dietary Zinc and Prostate Cancer Risk: A Case-Control Study from Italy -
Eur Urol. 2007 Feb 5 - "In this large study we found
a direct association between high zinc intake and prostate cancer risk,
particularly for advanced cancers"
-
Veggies for Enlarged Prostate Risk - WebMD, 2/14/07 -
"Data came from more than 32,000 male health care
workers enrolled in a long-term health study that began in 1986 ... The men
who consumed the most vegetables were 11% less likely to have BPH surgery or
moderate to high BPH symptoms by 2000"
-
Fruit and vegetable consumption, intake of micronutrients, and benign
prostatic hyperplasia in US men - Am J Clin Nutr. 2007 Feb;85(2):523-9 -
"Vegetable consumption was inversely associated with
BPH (fifth compared with first quintile-OR: 0.89; 95% CI: 0.80, 0.99; P for
trend = 0.03), whereas fruit intake was not. Consumption of fruit and
vegetables rich in beta-carotene (P for trend = 0.004), lutein (P for trend
= 0.0004), or vitamin C (P for trend = 0.05) was inversely related to BPH.
With increasing vitamin C intake from foods, men were less likely to have
BPH (P for trend = 0.0009). Neither alpha- nor gamma-tocopherol intake from
foods was associated with BPH"
-
On The Cover: Eating Your Way To Prostate Cancer - Life Extension
Magazine, 2/07 - "Boswellia extracts have been
thoroughly studied as natural remedies for inflammatory disorders. A
patented extract from boswellia called 5-LOXIN® has potent ability to
inhibit the enzyme 5-LOX, preventing the formation of protein-degrading
enzymes, and protecting against inflammation-induced events that can promote
tumor angiogenesis" - See
5-LOXIN at Amazon.com.
-
Worried About Prostate Cancer? Tomato-broccoli Combo Shown To Be Effective
- Science Daily, 1/16/07 - "fed a diet containing 10
percent tomato powder and 10 percent broccoli powder to laboratory rats that
had been implanted with prostate cancer cells ... The tomato/broccoli combo
outperformed all other diets in shrinking prostate tumors ... The only
treatment that approached the tomato/broccoli diet's level of effectiveness
was castration ... To get these effects, men should consume daily 1.4 cups
of raw broccoli and 2.5 cups of fresh tomato, or 1 cup of tomato sauce, or ½
cup of tomato paste"
-
Calcitriol and genistein actions to inhibit the prostaglandin pathway:
potential combination therapy to treat prostate cancer - J Nutr. 2007
Jan;137(1):205S-10S - "the combination of
calcitriol and
genistein is an attractive therapeutic
option for the treatment of PCa"
-
Dietary Fatty acids correlate with prostate cancer biopsy grade and volume
in jamaican men - J Urol. 2007 Jan;177(1):97-101 -
"Omega6 polyunsaturated fatty acids stimulate and
Omega3 polyunsaturated fatty acids inhibit prostate cancer growth"
-
Aspirin 'blocks prostate problem' - BBC News, 12/9/06 -
"taking NSAIDs was found to prevent or delay
enlargement of the prostate"
-
Tomatoes, tomato products and lycopene in the prevention and treatment of
prostate cancer: do we have the evidence from intervention studies? -
Curr Opin Clin Nutr Metab Care. 2006 Nov;9(6):722-7 -
"Increasing evidence suggests that a single serving
of tomatoes or tomato products ingested daily may contribute to protect from
DNA damage. As DNA damage seems to be involved in the pathogenesis of
prostate cancer, the regular ingestion of tomatoes or tomato products might
prevent the disease"
-
NSAID Use May Prevent or Delay Development of Benign Prostate Hyperplasia
- Medscape, 9/6/06 - "NSAIDs reduced the incidence
rates of moderate-severe urinary symptoms (HR, 0.73), low maximum urinary
flow rate (HR, 0 .51), increased prostate volume (HR, 0.53), elevated serum
PSA level (HR, 0.52), and treatment of BPH (HR, 0.79)"
-
Aspirin May Cut Enlarged Prostate Risk - WebMD, 8/30/06 -
"Men who reported daily use of aspirin or other
anti-inflammatory drugs, such as ibuprofen and naproxen, were 25% less
likely to develop moderate to severe enlarged prostate symptoms"
-
Decrease In Progression Of Prostate Cancer With Plant-based Diet And Stress
Reduction
- Science Daily, 8/29/06 - "The plant-based diet and
stress reduction intervention was effective in significantly reducing the
PSA rate, indicating a reduction in the rate of progression of the prostate
cancer"
-
Dietary intake of phytoestrogens, estrogen receptor-beta polymorphisms and
the risk of prostate cancer - Prostate. 2006 Aug 18 -
"Our study provides strong evidence that high intake
of phytoestrogens substantially reduce prostate cancer risk among men with
specific polymorphic variation in the promoter region of the estrogen
receptor-beta gene"
-
Altering
Fatty Acid Levels In Diet May Reduce Prostate Cancer Growth Rate - Science
Daily, 8/1/06 - "tumor cell growth rates decreased by 22
percent and PSA levels were 77 percent lower in the group receiving a healthier
balance of fatty acids compared with the group that received predominantly
omega-6 fatty acids"
-
Phase II Study of Pomegranate Juice for Men with Rising Prostate-Specific
Antigen following Surgery or Radiation for Prostate Cancer - Clin Cancer
Res. 2006 Jul 1;12(13):4018-4026 -
"Mean PSA doubling time significantly increased with
treatment from a mean of 15 months at baseline to 54 months posttreatment
... In vitro assays comparing pretreatment and posttreatment patient serum
on the growth of LNCaP showed a 12% decrease in cell proliferation and a 17%
increase in apoptosis (P = 0.0048 and 0.0004, respectively), a 23% increase
in serum nitric oxide (P = 0.0085), and significant (P < 0.02) reductions in
oxidative state and sensitivity to oxidation of serum lipids after versus
before pomegranate juice consumption"
-
Pomegranate Slows
Prostate Cancer - WebMD, 7/5/06
-
Pomegranate Juice Helps Keep PSA Levels Stable In Men With Prostate Cancer
- Science Daily, 7/2/06 - "Drinking an eight ounce
glass of pomegranate juice daily increased by nearly four times the period
during which PSA levels in men treated for prostate cancer remained stable"
-
Juice 'can slow prostate cancer' - BBC News, 7/1/06 -
"measured how long it took for PSA levels to double
in individual patients ... The average doubling time is about 15 months, but
in patients who drank pomegranate juice this increased to an average of 54
months"
-
Starch Intake May Increase Risk for Benign Prostatic Hyperplasia -
Medscape, 6/27/06 - "Starch intake was directly
associated with increased risk for BPH with an OR of 1.51 ... The main
sources of starch in the subjects were white bread, pasta, and rice ... An
inverse relationship was observed for polyunsaturated fats (OR, 0.72; 95%
CI, 0.55 - 0.93), linoleic acid (OR, 0.73; 95% CI, 0.56 - 0.94), and
linolenic acid (OR, 0.71"
-
Soy-rich diet cuts prostate cancer marker - Nutra USA, 6/22/06 -
"Two servings of soy a day reduced levels of the
prostate cancer marker PSA in free-living men by 14 percent, but didn’t
affect testosterone levels"
-
Combined Lycopene and Vitamin E Treatment Suppresses the Growth of PC-346C
Human Prostate Cancer Cells in Nude Mice
- J Nutr. 2006 May;136(5):1287-93 -
"lycopene combined with vitamin E may inhibit the
growth of prostate cancer"
-
More support for lycopene protection against prostate cancer - Nutra
USA, 5/3/06 - "half of these men to receive a daily
supplement of eight milligrams of lycopene (LycoRed's Lyc-O-Mato) for one
year and followed for a futher year ... blood levels of prostate-specific
antigen (PSA), a protein that is used as a marker for the disease, decreased
by 42 per cent after supplementation" - See
Jarrow Lyco-Sorb (contains Lyco-O-Mato) at Amazon.com.
-
Pondering Prostate Problems? - Dr. Weil, 4/28/06 -
"All told, this study shouldn't discourage men with
mild-to-moderate BPH from using saw palmetto. I still recommend taking 160
mg of a standardized extract twice a day; this should help reduce the size
of the gland in about four to six weeks"
-
Prostate tumours shrunk by lycopene, vitamin E combo - Nutra USA,
4/14/06 - "Compared with the control, the combined
mixture of lycopene and vitamin E, at five mg/kg BW each, suppressed the
growth of the prostate xenograft by 73 per cent at day 42 ... the mice
receiving the combined supplement also lived 40 per cent longer" -
See
Jarrow Lyco-Sorb (contains Lyco-O-Mato) at Amazon.com.
-
Crunchy Veggies
Fight Cancer - WebMD, 4/5/06 -
"focused on a substance found in cruciferous
vegetables called phenethyl-ITC, or PEITC ... After 31 days of treatment,
the size of the tumors in the treated animals was about half that of the
untreated animals"
-
Pygeum - An Extract from This Native African Tree Reduces Symptoms of Benign
Prostatic Hyperplasia
- Life Extension Magazine, 4/06
- Oily fish may fight
prostate cancer spread - MSNBC, 3/21/06 -
"Omega-6 fats, found in vegetable oils, nuts and
seeds, increased the spread of tumor cells into bone marrow. This invasion
was blocked by omega 3 fats -- the ones found in oily fish"
- See Mega Twin EPA at Amazon.com.
-
Pepper Component Hot Enough To Trigger Suicide In Prostate Cancer Cells
- Science Daily, 3/19/06 -
"Capsaicin induced approximately 80 percent of
prostate cancer cells growing in mice to follow the molecular pathways
leading to apoptosis. Prostate cancer tumors treated with capsaicin were
about one-fifth the size of tumors in non-treated mice"
-
Pepper extract could stop prostate cancer growth - Nutra USA, 3/15/06 -
"capsaicin has a profound inhibiting effect on the
growth of prostate cancer cells in vitro and in vivo , inducing apoptosis
[programmed cell death] of prostate cancer cell lines"
-
Prostate Cancer:
No Antioxidant Help? - WebMD, 2/14/06 -
"Vitamin E, vitamin C, and beta-carotene consumption
didn't appear to affect prostate cancer risk, the study shows"
-
More support for soy's protection against prostate cancer - Nutra USA,
2/13/06 - "High intake of food items rich in
phytoestrogens was associated with a decreased risk of prostate cancer. The
odds ratio (OR) [the risk compared to a standard of 1.00] comparing the
highest to the lowest quartile of intake was 0.74"
-
Vitamin
D Inhibits Progression Of Some Prostate Cancers - Science Daily, 2/8/06 -
"vitamin D
significantly limits the ability of prostate cancer cells to invade healthy
cells by reducing the activity of two enzymes -- proteases called matrix
metalloproteinase and cathepsin" [WebMD]
- See
vitamin D at Amazon.com.
-
Dietary Factors May Affect Risk for Benign Prostatic Hyperplasia -
Medscape, 2/7/06 - "Citrus fruit, but not total
fruit, consumption was associated with a significantly reduced risk for BPH"
-
Corn oil, omega-6 could speed up prostate cancer, study - Nutra USA,
2/1/06 - "After we added omega-6 fatty acids to the
growth medium in the dish, and only omega-6, we observed that tumors grew twice
as fast as those without omega-6" - [HealthDay]
[WebMD]
- Herbal extract may treat
prostate cancer - MSNBC, 11/27/05 -
"Zyflamend
has the ability, in culture at least, to reduce prostate cancer cell growth
by as much as 78 percent and induce cancer cell death or “apoptosis,”"
- See
Zyflamend at Amazon.com.
-
Too much calcium may raise prostate cancer risk - Nutra USA, 11/15/05 -
"men who consumed more than 2000mg of calcium per
day nearly doubled their risk of developing prostate cancer"
-
Columbia Study Suggests Benefits Of Herbal Extract In Early Treatment Of
Prostate Cancer - Science Daily, 11/13/05 -
"Zyflamend®, a unique
herbal extract preparation, suppresses the growth of prostate cancer cells
and induces prostate cancer cells to self-destruct via a process called
“apoptosis" - See
Zyflamend at Amazon.com.
-
Randomized, Double-Blind, Placebo-Controlled Crossover Study in Men with
Prostate Cancer and Rising PSA: Effectiveness of a Dietary Supplement -
Eur Urol. 2005 Oct 17 - "The supplement consisted of
soy, isoflavones, lycopene, silymarin and antioxidants as main ingredients
... The soy-based dietary supplement utilised in this study was shown to
delay PSA progression after potentially curative treatment in a significant
fashion"
-
A New Weapon to Fight Prostate Cancer
- Life Extension Magazine, 11/05 - "Scientists have
shown that milk thistle extracts possess anti-cancer actions on human
prostate carcinoma in vitro and in vivo. Many of the mechanisms by which
silymarin compounds interfere with prostate cancer progression have been
identified. The scientists who conducted the most recent study stated that,
in addition to isosilybin B, there might be other silymarin compounds that
are effective as well"
-
Can Green Tea Protect Against Prostate Cancer?
- Life Extension Magazine, 11/05 - "Thirty-two
subjects received 200 mg of green tea catechins (50% EGCG) three times
daily, while the other 30 men received a placebo. Biopsies were conducted at
six months and one year later. Remarkably, only one man in the treatment
group was diagnosed with prostate cancer, compared to nine men in the
control group who developed the disease"
-
Vitamin D Compounds
May Fight Prostate Cancer - WebMD, 11/1/05 -
"Vitamin D compounds may help slow or prevent prostate
cancer ... Calcitriol "markedly reduced tumor burden over time,""
-
Flavonoids May Inhibit Prostate Cancer - Science Daily, 10/21/05 -
"Our findings suggest that apigenin could be
developed as a promising agent against prostate cancer"
-
Pomegranates May Prevent Prostate Cancer - WebMD, 9/28/05 -
"the dose of pomegranate juice given to the mice
equates to about one or two pomegranates -- or 8 to 16 ounces of pomegranate
juice ... mice who drank the higher concentration of pomegranate extract
experienced a significant slowing in their cancer progression and a decrease
in prostate-specific antigen (PSA) levels"
-
Impact of diet on prostate cancer: a review - Prostate Cancer Prostatic
Dis. 2005 Aug 30 - "Much interest currently lies in
the potential of HMG-CoA reductase inhibitors (statins) to play a
chemopreventative role in prostate cancer. Lycopene, a potent antioxidant
found in tomatoes, may exert a protective effect in the prostate. Selenium
and vitamin E have also been shown to decrease the risk of prostate cancer
in some men. Calcium may support vitamin D-related antiproliferative effects
in prostate cancer. Certain soy proteins, common in the Asian diet, have
been shown to inhibit prostate cancer cell growth. Finally, green tea may
also have a chemopreventive effect by inducing apoptosis"
-
Vitamin D, NSAIDS Provide Double Whammy Against Prostate Cancer, Stanford
Study Finds - Science Daily, 9/1/05 - "The
growth of prostate cancer cells can be halted by combining a form of vitamin
D, available only by prescription, with low doses of an over-the-counter
painkiller ... The combination reduced prostate cancer cell growth in a
laboratory dish by up to 70 percent, according to the findings"
-
Lifestyle And Diet May Stop Or Reverse Prostate Cancer Progression -
Science Daily, 8/11/05 -
"Participants in the lifestyle-change group were
placed on a vegan diet consisting primarily of fruits, vegetables, whole
grains, and legumes supplemented with soy, vitamins and minerals. They
participated in moderate aerobic exercise, yoga/meditation, and a weekly
support group session"
- [Doctor's
Guide]
-
Aspirin May Cut Prostate Cancer Risk - WebMD, 7/5/05 -
"Those who had taken aspirin regularly for a long
time were 15% less likely to be diagnosed with prostate cancer. Other
anti-inflammatory drugs were associated with an 18% lower risk of prostate
cancer"
-
Beta-Sitosterol and the Aging Prostate Gland
- Life Extension Magazine, 6/05 -
"A study using the prostate cancer cell line LNCaP (an
androgen-dependent tumor) showed that beta-sitosterol decreased cancer cell
growth by 24% and induced apoptosis (programmed cell death) fourfold ..."
- See
beta sitosterol at Amazon.com.
-
Pomegranate Juice May Curb Prostate Cancer - WebMD, 5/23/05 -
"Drinking pomegranate juice significantly lengthened
the amount of time it took for the men's average PSA levels to double (from
14 to 26 months, on average) ... Pomegranate juice contains antioxidant
chemicals that may have cancer-preventing benefits"
-
Statin Drugs Linked to Reduced Cancer Risk - WebMD, 5/16/05 -
"statin use reduces the rate of prostate cancer by
54%" - See
Zocor at International Anti-aging Systems.
-
Exercise May Fight Prostate Cancer - WebMD, 5/9/05 -
"men over age 65 who engaged in at least three hours
of vigorous physical activity, such as running, biking, or swimming, per
week had a nearly 70% lower risk of being diagnosed with advanced prostate
cancer or dying from the disease"
- Is There a Link
Between Macronutrient Intake and Prostate - Medscape, 5/5/05 -
"In this sample of Italian men, intake of monounsaturated fatty acids and
starch was directly related to an increased risk of prostate cancer.
Polyunsaturated fatty acid consumption was associated with a significantly
lower risk of the disease"
-
Purified Green Tea Polyphenol Capsules Taken Daily Appear to Substantially
Reduce Prostate Cancer in High Risk Patients - Doctor's Guide, 4/22/05 -
"researchers reported a 90% decrease in the rate of
prostate cancer in men who received 200 mg doses of the polyphenol capsules
three times a day for 1 year" - See
green tea extract at Amazon.com. My favorite is
Jarrow Green Tea at Amazon.com.
-
Antioxidant levels key to prostate cancer risk in some men - Nutra USA,
3/15/05 - "Greater levels of selenium, vitamin E and
the tomato carotenoid lycopene have been shown to reduce prostate cancer in
one out of every four Caucasian males, or those who inherit a specific
genetic variation that is particularly sensitive to oxidative stress"
-
Pilot Study: Potential Role of Vitamin D (Cholecalciferol) in Patients With
PSA Relapse After Definitive Therapy
- Nutr Cancer. 2005;51(1):32-6 - "Fifteen patients
were given 2,000 IU (50 mug) of cholecalciferol daily and monitored
prospectively every 2-3 mo. In 9 patients, PSA levels decreased or remained
unchanged after the commencement of cholecalciferol. This was sustained for
as long as 21 mo. Also, there was a statistically significant decrease in
the rate of PSA rise after administration of cholecalciferol (P = 0.005)
compared with that before cholecalciferol. The median PSA doubling time
increased from 14.3 mo prior to commencing cholecalciferol to 25 mo after
commencing cholecalciferol. Fourteen of 15 patients had a prolongation of
PSA doubling time after commencing cholecalciferol. There were no side
effects reported by any patient"
- Vitamin E:
Which Type Best for Prostate Cancer? - WebMD, 3/1/05 -
"the men with the highest blood levels of alpha and
gamma tocopherol had lower prostate cancer risk. Men with the highest levels
of both forms of the vitamin were 30%-40% less likely to develop prostate
cancer as those with the lowest levels"
-
Vitamin D May Cut Prostate Cancer Risk - CBS 2 Chicago, 2/17/05 -
"men with higher levels vitamin D in their blood
were half as likely to develop aggressive forms of the disease than those
with lower amounts"
- Can Prostate
Cancer Be Prevented? - Medscape, 2/8/05 - "The
Prostate Cancer Prevention Trial (PCPT) demonstrated that finasteride can
prevent prostate cancer, albeit with an apparently increased risk of
high-grade disease. A substantial amount of epidemiologic, molecular, and
clinical evidence suggests that both selenium and vitamin E might also
prevent prostate cancer ... vitamin D exerts an antiproliferative effect on
prostate cancer cells"
- Green tea for a healthy
prostate? - MSNBC, 1/21/05 -
"phytochemicals called polyphenols attack growth
factors and proteins, interrupting processes that increase the size of
tumors, thus preventing them from spreading to other parts of the body ...
green tea in mice with an aggressive form of cancer can decrease the spread
or metastasis of prostate cancer to liver, bone and other sites ... the
phytochemicals in green tea could inhibit the early stages of prostate
cancer development" - See
green tea extract at Amazon.com. My favorite is
Jarrow Green Tea at Amazon.com.
-
Vitamin D may slow prostate tumour growth - CTV.ca, 1/16/05 -
"the vitamin D seemed to cut the rise in PSA rates
by more than half. Without vitamin D, PSA rates rose by about five per cent.
With vitamin D, PSA rates only rose by two per cent"
-
Vitamin E In Plant Seeds Could Halt Prostate, Lung Cancer, Says Purdue
Scientist - Science Daily, 12/30/04 -
"gamma-tocopherol, which occurs naturally in
walnuts, pecans, sesame seeds, and in corn and sesame oils, inhibits the
proliferation of lab-cultured human prostate and lung cancer cells"
- See
Jarrow FamilE (contains all eight members of the vitamin E family, includes
Tocomin) at Amazon.com.
- Vitamin E in Food
May Fight Cancer - WebMD, 12/15/04 - "Most
supplements provide a different form of the vitamin, alpha-tocopherol ...
Gamma-tocopherol aced its lab tests. It inhibited the spread of prostate and
lung cancer cells without hurting the healthy cells ... Mixing several forms
of vitamin E -- including gamma-tocopherol -- was even better at blocking
cancer's spread" - See
Jarrow FamilE (contains all eight members of the vitamin E family, includes
Tocomin) at Amazon.com.
-
Gamma-tocopherol halts cancer cells in lab study - Nutra USA, 12/15/04 -
"Gamma-tocopherol, found naturally in walnuts,
sesame seeds and corn, was found to hold back the proliferation of
lab-cultured human prostate and lung cancer cells, reports the team from
Purdue University in the 13 December online edition of the Proceedings of
the National Academy of Sciences ... This could indicate that the vitamin Could be used to target lung and prostate cancer cells without the damaging
side effects of chemotherapy"
- See
Jarrow FamilE (contains all eight members of the vitamin E family, includes
Tocomin) at Amazon.com.
-
Green Tea Polyphenols Thwart Prostate Cancer Development At Multiple Levels
- Science Daily, 12/15/04 - "The polyphenols present
in
green tea help prevent the spread of prostate cancer by targeting
molecular pathways that shut down the proliferation and spread of tumor
cells, as well as inhibiting the growth of tumor nurturing blood vessels"
- See
green tea extract at Amazon.com. My favorite is
Jarrow Green Tea at Amazon.com.
-
Flower Pollen, Powerful Protection for Prostate Health - Life Extension
Magazine, 12/04
- Green Tea May
Stall Prostate Cancer Growth - WebMD, 12/1/04 -
"the
green tea antioxidant appeared to stall cell growth by decreasing
production of several proteins that promote cell survival. In addition, it
reduced the production of proteins that are known to be associated with the
spread of cancer cells ... the study also suggests that the antioxidant in
green tea appeared to starve prostate cancer tumor cells by inhibiting the
formation of blood vessels, thereby suppressing the flow of nutrients to the
cancerous cells" - See
green tea extract at Amazon.com. My favorite is
Jarrow Green Tea at Amazon.com.
- Soy: Good for Men’s
Health, Too - Healthwell, 11/11/04 - "There was
a significant PSA-level drop in the men eating the soy bread compared with
the control group"
-
Effects of a genistein-rich extract on PSA levels in men with a history of
prostate cancer - Functional Foods and Nutraceuticals, 11/04 -
"a
genistein-rich extract as the sole treatment
for prostate cancer does not appear to be an effective treatment for
prostate cancer when given alone. However, eight of 13 evaluated patients in
the active surveillance group had either no rise or a decline in PSA levels
of less than 50 per cent"
-
Nonsteroidal Anti-inflammatory Drugs May Improve Survival among Prostate
Cancer Patients - Doctor's Guide, 10/4/04
- Aspirin May
Delay Prostate Cancer, Extend Life - WebMD, 10/4/04 -
"more than nine in 10 men who took
aspirin or another
NSAID were alive 10 years later compared with
fewer than seven in 10 men who didn't take the painkillers ... evidence is
mounting that prostate cancer may develop in areas with chronic
inflammation"
- Vitamin E +
Lycopene Fights Prostate Cancer - WebMD, 9/30/04 -
"a combination treatment with low-dose lycopene and
vitamin E had the strongest effect at slowing tumor growth -- a 73% slowing
of growth on the 42nd day of the test ... The next best results came from
the low dose of lycopene alone, which slowed tumor growth by 53% in the same
time frame"
- Soy Improves
Prostate Cancer Outlook - WebMD, 9/24/04 -
"adding about 2 ounces of soy
each day for one month results in a 13% drop in total PSA and a 27% increase
in the free-to-total PSA ratio in men with prostate cancer"
-
Daily Glass of Red Wine May Cut Risk of Developing Prostate Cancer
- Doctor's Guide, 9/23/04 -
"men who consumed four or more glasses of red wine
per week reduced their risk of prostate cancer by 50 percent ... That
compound, Stanford and colleagues believe, may be an antioxidant called
resveratrol, which is abundant in the skins of red grapes but much less so
in the skins of white grapes"
- Relieve Common Men’s
Condition with Saw Palmetto Extract - Healthwell Exchange Daily News,
9/16/04 - "Comparison trials found its effects to be
similar to those of finasteride and tamsulosin ... however, while some men
using the standard medications experienced sexual dysfunction as a side
effect, men using the herbal extract did not"
- See
saw palmetto at Amazon.com.
-
Effects of a diet rich in phytoestrogens on prostate-specific antigen and
sex hormones in men diagnosed with prostate cancer
- Urology. 2004 Sep;64(3):510-5 -
"Statistically significant differences were detected
between the HT [heat-treated] soy grits group and the control wheat group
for the percentage of change in total PSA (-12.7% versus 40% ... The data
from this study indicate that a daily diet containing four slices of a bread
rich in HT soy grits favorably influences the PSA level and the free/total
PSA ratio in patients with prostate cancer"
- Update on
Lycopene - Dr. Murray's Natural Facts, 8/25/04 -
"men who consumed the highest levels of
lycopene (6.5 mg per day) in their diet showed a 21 percent decreased
risk of prostate cancer compared with those eating the lowest levels. When
the researchers looked at only advanced prostate cancer, the high lycopene
eaters had an 86% decreased risk" - See
lycopene at Amazon.com.
-
Omega-3s appear to protect against prostate cancer
- Nutra USA, 6/23/04 -
"alpha-linolenic acid (ALA), an omega-6 fat, may
raise the risk of advanced prostate cancer ... Men with the highest
quintiles of EPA and DHA combined had an 11 per cent lower total prostate
cancer risk and advanced prostate cancer risk was 26 per cent lower"
- See Mega Twin EPA at Amazon.com.
-
Selenium and Prostate Cancer - Physician's Weekly, 6/14/04 -
"higher levels of selenium may slow prostate cancer
tumor progression"
-
Breakthrough research on lycopene - Nutra USA, 4/15/04 -
"Men eating four to five tomato based-dishes per week were found to be
protected by 25 per cent compared to men eating tomatoes only rarely"
- See
lycopene at Amazon.com.
-
Fibre for prostate protection - Nutra USA, 4/15/04 -
"total fibre intake only slightly reduced prostate cancer risk. However when
the study examined soluble fibre only, the reduced risk was greater at 11
per cent, while vegetable fibre cut risk by 18 per cent"
-
Resveratrol, Powerful Protection Against Prostate Cancer - Life
Extension Magazine, 4/04 -
"Resveratrol works through more than a dozen
different anticancer mechanisms and selectively targets cancer cells. This
single supplement modulates hormones, has several mechanisms that stop
cancer cells from multiplying, and even has the ability to destroy cancer
cells" - See
resveratrol at Amazon.com.
- Soy: Prevent
Prostate Cancer, Male Baldness? - WebMD, 3/30/04 -
"A little-known molecule called equol ... is showing promise as a powerful
blocker of a potent male hormone involved in prostate cancer, male baldness,
even acne ... Actually, the protective effects occur when two chemicals in
soy protein -- genistin and daidzin -- reach the digestive system, Setchell
explains. There, they are metabolized to form genistein and daidzein.
Daidzein is metabolized once again, to form equol" - See
soy isoflavones at Amazon.com.
-
Soy blocks prostate cancer? - Nutra USA, 3/30/04 -
"Equol, the major metabolite of the phytoestrogen
daidzein - one of the main isoflavones found abundantly in soybeans -
completely stops in its tracks the male hormone dihydrotestosterone (DHT),
which normally stimulates prostate growth and causes male pattern baldness"
-
Higher Serum Vitamin E Levels Linked to Lower Prostate Cancer Risk
- Doctor's Guide, 3/30/04 -
"Compared with men in the lowest tertile of
alpha-tocopherol levels, men in the highest tertile were 53% less likely to
develop prostate cancer (P = .05). Men in the highest tertile of
gamma-tocopherol were 39% less likely to develop the cancer than those in
the lowest tertile"
- See
vitamin E at Amazon.com. My favorite is
Jarrow FamilE (contains all eight members of the vitamin E family, includes
Tocomin) at Amazon.com.
- Citrus Nutrient
Helps Slow Prostate Cancer - WebMD, 12/16/03 -
"Every day, patients took 18 capsules of pectin: Each contained 14 grams of
pectin, equaling 800 mg a day ... Fourteen months later, 70% of the men
had significant increases in the time it took to produce PSA -- it took
longer for prostate cells to produce a doubling of blood PSA levels"
- See
pectin supplements at Amazon.com.
-
Vitamin D and prostate cancer prevention and treatment
- Trends Endocrinol Metab. 2003 Nov;14(9):423-30 -
"The association between either decreased sun exposure or vitamin D
deficiency and the increased risk of prostate cancer at an earlier age, and
with a more aggressive progression, indicates that adequate vitamin D
nutrition should be a priority for men of all ages"
- The Prostate
Cancer-Fighter - WebMD, 11/4/03 -
"in rats made to develop prostate cancer in the
laboratory, those who were fed a diet containing tomato powder experienced a
longer survival prior to developing cancer and were 26% less likely to die
from prostate cancer compared with those on a "control" diet containing no
tomato or lycopene foods ... In rats fed a diet of lycopene alone, the death
rates from prostate cancer were similar to those rats fed a control diet"
-
Randomised controlled short-term intervention pilot study on rye bran bread
in prostate cancer - Eur J Cancer Prev. 2003 Oct;12(5):407-15 -
"In the rye group, there was a significant increase
in plasma
enterolactone,
and the apoptotic index increased significantly from 2.1% (SD 1.3) to 5.9%
... High intake of rye bran bread is suggested to increase
apoptosis in prostate tumours"
- Does Masturbation Protect
Men’s Health? - Dr. Weil, 9/18/03 -
"A team of scientists in Australia found that men
who ejaculate more frequently between the ages of 20 and 50 are less likely
to develop prostate cancer. The protective effect seems greatest for those
in their 20s"
- Too Much Zinc
Linked to Prostate Cancer - WebMD, 7/1/03 -
"although taking
zinc supplements of up to 100 mg per day did not increase men's overall
risk of prostate cancer, men who took more than 100 mg of supplemental zinc
per day were more than twice as likely to develop advanced prostate cancer
than nonusers ... they can't rule out the fact that some other factor may
account for the increase in advanced prostate cancer risk associated with
excessive zinc supplementation found by the study" - See my
zinc page. Zinc interferes with copper absorption so maybe the cause is
low copper.
- Sunny
Carotenoids for Better Health - Health Supplement Retailer 06/03 -
"Comparing 65 patients with prostate cancer to 132
cancer-free controls, they found an inverse association between
lycopene, zeaxanthin, lutein and cryptoxanthin levels and prostate
cancer incidence ... "In vitro studies have shown that sometimes isolated,
synthetic lycopene does not work as well as tomatoes or natural tomato
extract," said Diane Fremont, sales director for Lycored, the Beer-Sheva,
Israel-based supplier of Lyc-O-Mato® natural lycopene complex. "There is a
synergistic effect with a combination of phytonutrients."" - See
Jarrow Lyco-Sorb (contains Lyco-O-Mato) at Amazon.com.
- Saw Palmetto Extract
Effective in Treating Chronic Prostatitis
- Medscape, 4/28/03 - "Permixon, a compound
extracted from the fruit of the American dwarf palm tree Serona repens, also
known as
saw palmetto, appears to improve symptoms of chronic
prostatitis/chronic pelvic pain syndrome ... Seventy-five percent of the
patients who received Permixon had at least mild improvement in symptoms
compared with 20% of the control group. Similarly, 55% of patients who
received Permixon reported moderate or marked improvement compared with 16%
of the control group ... In the control group, PSA did not differ from
baseline. However, the group taking Permixon experienced median decreases
from baseline PSA of 22% after 6 weeks"
- See
saw palmetto at Amazon.com.
- Selenium Reduces Risk
of Some Cancers: FDA Approves Claim
- New Hope Natural Media, 4/17/03 -
"Companies that manufacture
selenium
supplements will now be permitted by the United States Food and Drug
Administration (FDA) to claim that selenium supplements may reduce the risk
of some cancers, according to a statement by the FDA. Although the FDA does
not permit manufacturers to list specific types of cancer in the health
claim, studies suggest selenium supplementation may reduce the risk of
colon, prostate, lung,
liver and esophageal cancers"
- See
selenium at Amazon.com.
-
Garlic may reduce risk of prostate cancer - Life Extension Magazine,
3/03 - "The study indicated that eating just a tenth
of an ounce of scallions daily lowers prostate cancer risk by about 70%;
that same amount of garlic
reduces the risk by about 53%. The study authors suggest that one clove of
garlic daily can achieve desired preventive effects"
- Herbal Remedies
Can Aid Prostate Health - WebMD, 2/4/03 - "One
in three men are treated for BPH with surgery or, more commonly,
prescription drugs such as Flomax or Proscar. But growing research suggests
that some symptoms may be treated as effectively with over-the-counter
herbal remedies -- sometimes less expensively and thus far, with no reported
side effects. What's more, some of these treatments claim they may help
prevent prostate cancer, the second leading cause of cancer death in men"
- Selenium May
Fight Prostate Damage - WebMD, 2/4/03 - "About
80% of the prostate cells in dogs fed a normal diet had extensive DNA damage
compared with only about 57% in the
selenium-treated dogs ... dogs fed the enriched
diet also had a twofold increase in the number of
prostate cells that had undergone a process that removes damaged cells,
called apoptosis, which is associated with a lower risk of cancer" -
See
selenium at Amazon.com.
-
Vitamin D for Advanced Prostate Cancer - Physician's Weekly, 1/27/03 -
"Calcitriol is an active form of vitamin D.
Results from a phase II clinical trial suggest that the combination of
calcitriol and the chemotherapy agent
docetaxel may be
twice as effective as the use of docetaxel alone in men with
androgen-independent prostate cancer"
- Wow, You Coulda Had Some
Lycopene! - Cancer Decisions Newsletter , 1/7/03 -
"Men who received the lycopene supplement
had lower prostate-specific antigen (PSA) levels and less aggressive tumors
than the non-supplemented control group. Their tumors were smaller (80
percent of the tumors were under 4 milliliters (ml) in volume, compared to
45 percent in the control group). Their cancer was much more likely to be
within the surgical margins and/or confined to the prostate gland (73
percent, compared to 18 percent of the control group). And the invasion of
the prostate gland by cancer-like "PIN" cells was completely prevented in
this group, compared to a 33 percent incidence of "PIN" cells in the control
group" - See
lycopene at Amazon.com. My favorite is
Jarrow Lyco-Sorb (contains Lyco-O-Mato) at Amazon.com.
- Bad Breath, Healthy
Prostate - New Hope Natural Media, 12/20/02 -
"Men who consumed more than 10 grams per day of Allium vegetables had almost
a 50% reduction in risk of developing prostate cancer, compared with those
who consumed less than 2.2 grams per day.
Garlic was the most commonly consumed Allium vegetable, followed by
scallions and chives"
-
Herbal Treatment Shows Promise Against Prostate Cancer
- USA Today, 12/20/02
- Herb Mix Nixes
Prostate Cancer in Lab - WebMD, 12/13/02 - "A
number of recent studies point to COX-2 as an important factor in
cancer-cell growth. In the Columbia studies, Zyflamend decreased COX-2
activity about as well as a potent COX-2-inhibiting drug ... The herbal mix
is called Zyflamend, from New Chapter Inc., and has 10 herbs: holy basil,
turmeric, ginger,
green tea, rosemary, hu zhang, Chinese goldthread, barberry, oregano,
and Scutellaria biacalensis" - See
Zyflamend at Amazon.com.
- Watermelon for Prostate
Cancer? - Dr. Weil, 12/10/02 -
"Lycopene is a
powerful antioxidant that a number of large studies have shown is
particularly good at protecting against prostate,
colon and rectal cancer, as well as
heart disease ... contains 40 percent more lycopene than an equivalent
weight of tomatoes ... The body converts about 500 different carotenoids
into
vitamin A ... If you don’t get enough of these foods in your diet, you
may want to use an antioxidant supplement. I recommend a mixed carotenoid
supplement containing lycopene, lutein, alpha-carotene, and zeaxanthin, as
well as beta-carotene"
- Flaxseed Might
Block Prostate Cancer - WebMD, 11/11/02 - "A
study of mice shows that flaxseed in the diet
helped improve prostate tumors (reducing their size and severity), and even
prevented some of the mice from developing the disease ... men who ate
ground flaxseed for 34 days had a drop in levels of testosterone, which
helps prostate cancers grow, and in prostate specific antigen (PSA) levels,
a marker for prostate cancer"
-
Garlic May Prevent Cancer - Intelihealth, 11/6/02
- Garlic, Chives
Reduce Prostate Cancer - WebMD, 11/5/02 -
"filling your diet with
garlic and scallions can help reduce the chance of this potentially
deadly cancer ... Garlic and scallions, along with onions, leeks, chives,
and shallots, are rich in flavonols,
substances in plants that have been shown to have antitumor effects. All of
these vegetables have previously been linked to lower risks of cancers of
the stomach, colon, esophagus, and perhaps breast ... although fruits and
vegetables slightly reduced prostate cancer, the lower risk associated with
allium vegetables was much more pronounced"
-
Study Of Low-Fat, High-Fiber Diet Finds No Effect On PSA Levels In Men Over
A Four-Year Period - Doctor's Guide, 8/30/02
-
Novel Method of Enhancing Anti-Fat Effects of CLA - Life Extension
Magazine, 8/02 - "CLA is not just for fat-loss.
Studies show it may help protect against many diseases including
atherosclerosis and
cancer ... CLA is also able to inhibit the growth of prostate cancer.
CLA, as the article went on to say, can be considered a powerful prostate
cancer preventative, as well as a partial treatment " - See
conjugated linoleic acid at Amazon.com.
- Diet and Lifestyle
Changes Slow Progression of Prostate Cancer
- New Hope Natural Media Online, 6/13/02 -
"The recommendations included a low-fat vegetarian
diet, smoking cessation, stress management training and moderate exercise
... The men who received no treatment showed no change in their PSA levels.
In contrast, men who followed the Ornish protocol had an average PSA
decrease of 6.5%, a finding suggestive of disease regression"
-
Omega 3: Implications in human health and disease - PowerPak (39 page
CME course for Registered Dietitians), exp. 8/1/03 -
"The results of this study support the association
of a reduced risk of prostate cancer with higher levels of long-chain
omega 3 fatty acids in red blood cells and the hypothesis that
eicosanoid processes are involved in the progression or initiation of
prostate cancer" - See Mega Twin EPA at Amazon.com.
-
Prostate Cancer and I3C - Life Extension Magazine, 5/02 -
"Studies show that I3C
changes not only estrogen metabolism, but testosterone and androsterone as
well. Its hormone-altering action may help protect against hormone mimickers
such as the drugs implanted in food animals. It has been confirmed that
whether a hormone is the real thing, a drug facsimilie or a chemical, I3C
will neutralize it"
-
What's Wrong With Vitamin E? - Life Extension Magazine, 5/02 -
"Gamma tocopherol and prostate cancer ... " -
See
Jarrow FamilE (contains all eight members of the vitamin E family, includes
Tocomin) at Amazon.com.
-
Exposure To Sunlight Lowers Risks Of Four Cancers
- Doctor's Guide, 4/4/02 -
"exposure to sunlight contributes to non-melanoma
skin cancer. "By contrast, several ecological studies suggest that sunlight
may protect against female breast, ovarian, prostate, and colon cancer, all
diseases that contribute to a substantially higher proportion of cancer
mortality in the western industrialized world." ... Some studies have
suggested an association between circulating vitamin D in blood, which is
largely derived from sunlight, or dietary vitamin D and colorectal, prostate
and female breast cancers"
- Diet Linked to
Prostate Enlargement - WebMD, 3/25/02 - "diet
had the strongest link with prostate problems ... The men who had prostate
disease ate more meat and more fats, specifically polyunsaturated vegetable
fats and fish oils ... This is a perplexing association, but Suzuki suggests
it may be due to these fatty acids igniting a process called oxidation in
the body. Oxidation damages DNA, cells, and tissues, eventually contributing
to heart disease, cancer, and other illnesses ... Fruit, vegetables, and
whole grains are known to counter oxidation"
- Tomatoes Lower
Prostate Cancer Risk - WebMD, 3/4/02 - "This
newest investigation "confirmed our previous findings," ... "Frequent tomato
or lycopene intake was associated with a reduced risk of prostate cancer.
Intake of tomato sauce, the primary source of [ready available] lycopene,
was associated with an even greater reduction in prostate cancer risk." ...
Although all evidence points to lycopene as the beneficial ingredient, that
remains to be proved" - See
lycopene at Amazon.com. My favorite is
Jarrow Lyco-Sorb (contains Lyco-O-Mato) at Amazon.com.
-
Lycopene lowers PSA - Life Extension Magazine, 1/02 -
"32 mostly African American patients who had been
diagnosed with prostate cancer and were awaiting radical prostatectomy were
put on diets that included enough tomato sauce to provide 30 mg/day of
lycopene for three weeks. Prostate cancer is more frequent and serious among
African Americans than among Caucasians ... Mean serum PSA concentrations
fell by 17.5%, while a measure of oxidative status fell by 21.3%. DNA damage
in the cancer cells fell by 40% after three weeks, of which author Phyllis
E. Bowen says, “We don’t know whether that’s good or bad.” Most important,
high concentration of lycopene in prostate tissues resulted in a nearly
three-fold increase in programmed cell damage among cancer cells, which is a
good thing"
-
Green tea polyphenols inhibit prostate cancer in mouse model - Life
Extension Magazine, 12/01 -
"According to study findings published in the August
28, 2001 issue of the Proceedings of the National Academy of Sciences [PNAS
2001 Aug;98(18):10350-10355], green tea polyphenols—the equivalent found in
about six cups of green tea per day in humans—helped to significantly reduce
the risk of prostate cancer in a mouse model"
-
Low Selenium Levels Linked With Increased Prostate Cancer Risk
- Intelihealth, 12/6/01
-
Selenium May Help Prevent Prostate Cancer - Doctor's Guide, 11/30/01 -
"Men with low blood levels of selenium -- a
trace element supplied in certain foods and supplements -- are four to five
times more likely to contract prostate cancer ... the researchers concluded
that the results support the hypothesis that supplemental selenium may
reduce the risk of prostate cancer. Because selenium in blood decreases with
patient age, supplementation may be beneficial to older men"
- Green Tea,
Glycine May Slow Tumor Growth - WebMD, 11/2/01 -
"polyphenols
reduced the level of Bcl-XL protein in prostate cancer cell lines. Bcl-XL
has been shown to protect cancer cells from death -- known scientifically as
apoptosis ... The higher the concentration [of polyphenols] the more
apoptosis"
-
Study Provides New Evidence That Chemical In Tomato Sauce May Help Fight
Prostate Cancer, Particularly In Black Men - Intelihealth, 8/30/01 -
"Researchers at the University of Illinois in Chicago fed 32 volunteers with
newly diagnosed prostate cancer three-fourths cup of tomato sauce daily for
three weeks ... the treatment resulted in reduced blood levels of prostate
specific antigen (PSA), a protein whose increased levels are strongly linked
to a higher prostate cancer risk ...Researchers believe that lycopene, a red
pigment with high antioxidant potential, is the most likely agent involved
in this effect"
- Tomato Extract
May Have Role in Slowing Prostate Cancer
- WebMD, 8/10/01 - "So when the results came in,
Kucuk and colleagues were startled: the men who used the lycopene supplement
actually had smaller tumors than the men who did not. Even more intriguing,
the tumors taken from the men who used lycopene supplement were more likely
to be confined to the prostate, and less likely to have advanced beyond it."
- A Grain of Hope
for Prostate Cancer - WebMD, 7/11/01 - "Ground
flaxseed -- a grain that was a dietary staple in the 19th century -- may
prevent the growth of prostate cancer and speed the death of tumor cells
when combined with a low-fat diet"
-
Quercetin Relieves Prostate Pain - Nutrition Science News, 7/01
- An Aspirin a Day
to Keep Prostate Cancer Away? - WebMD, 6/7/01 -
"A growing body of research has suggested that people who regularly take
aspirin and other NSAIDs have a lower risk for cancers, including breast
cancer and colon cancer. And though the definitive word is not in, new
research presented at the annual meeting of the American Urological
Association suggests that regular NSAID use can reduce the risk of prostate
cancer too"
- Go Fish! Types
High in Fatty Acids May Prevent Prostate Cancer, Herring, Mackerel, and
Salmon Recommended - WebMD, 6/1/01 -
"Eating fatty fish reduces risk of prostate cancer
by about 70%, compared to not eating it, and reduces the risk for death from
the disease by about 50%."
-
Red Wine, Coffee, and Almonds May Lower Prostate Cancer Risk, Protective
Effect Linked to Dietary Boron - WebMD, 4/5/01 -
"men who consumed the greatest amount of
boron
were 64% less likely to develop prostate cancer, when compared with men who
consumed the least amount of boron"
-
Canceling Cancer: New Cancer Prevention Strategies on the Horizon -
WebMD, 3/26/01 - "Xing has shown that
quercetin blocks androgen receptors when applied to cancer cells in the
laboratory ... We are very excited by our finding that the new approach
quercetin [can be used] in the fight against prostate cancer"
-
Association between alpha-tocopherol, gamma-tocopherol, selenium, and
subsequent prostate cancer - J Natl Cancer Inst. 2000 Dec
20;92(24):2018-23 - "For gamma-tocopherol, men in
the highest fifth of the distribution had a fivefold reduction in the risk
of developing prostate cancer than men in the lowest fifth" - [Full
Article]
-
Induction of apoptosis in human prostatic cancer cells with beta-glucan
- Mol Urol 2000;4(1):7-13 - "this unique mushroom
polysaccharide may have great a potential as an alternative therapeutic
modality for prostate cancer"
-
Opposite effects of linoleic acid and conjugated linoleic acid on human
prostatic cancer in SCID mice - Anticancer Res 1998
May;18(3A):1429-1434, 6/99
- Vitamin E May Prevent
Prostate Cancer - Doctor's Guide, 3/18/98 -
"long-term use of a moderate-dose vitamin E supplement substantially reduced
prostate cancer incidence and deaths in male smokers"
-
Evidence for a local action of melatonin on the rat prostate
- J Urol 1998 Mar;159(3):1069-1073 - "The results
demonstrate putative melatonin receptors in the rat prostate and suggest a
direct suppression by melatonin of testosterone-dependent prostate growth"
- See my melatonin page
Other News:
-
Association of
Prostate-Specific Antigen Levels with Prostate Cancer Risk in a Multiethnic
Population: Stability over Time and Comparison with Polygenic Risk Score -
Cancer Epidemiol Biomarkers Prev 2022 Sep 20 - "We found
PSA to be an informative marker of PCa risk at least a decade before diagnosis
across multiethnic populations. This association was diminished with increasing
time, greater for low grade tumors, and comparable to a PRS when measured 10+
years before diagnosis"
-
Prostate cancer incidence in
men with Prostate-Specific Antigen (PSA) below 3 ng/mL: The Finnish Randomized
Study of Screening for Prostate Cancer (FinRSPC) - Int J Cancer 2022 Sep 2 -
"Prostate-specific antigen (PSA)-based screening for
prostate cancer (PCa) can reduce PCa mortality, but also involves over-detection
of low-risk disease with potential adverse effects. We evaluated PCa incidence
among men with PSA below 3 ng/mL and no PCa diagnosis at the first screening
round of the Finnish Randomized Study of Screening for PCa. Follow-up started at
the first screening attendance and ended at PCa diagnosis, emigration, death, or
the common closing date (December 2016), whichever came first. Cox regression
analysis was used to estimate hazard ratios and their confidence intervals (CI).
Among men with PSA <3 ng/mL, cumulative PCa incidence was 9.1% after 17.6 years
median follow-up. Cumulative incidence was 3.6% among men with baseline PSA
0-0.99 ng/mL, 11.5% in those with PSA 1.0-1.99 ng/mL and 25.7% among men with
PSA 2-2.99 ng/mL (hazard ratio 9.0, 95% CI: 7.9-10.2 for the latter). The
differences by PSA level were most striking for low-risk disease based on
Gleason score and EAU risk group. PSA values <1 ng/mL indicate a very low
20-year risk, while at PSA 2-2.99 ng/mL risks are materially higher, with 4-5
-fold risk for aggressive disease. Using risk-stratification and appropriate
re-screening intervals will reduce screening intensity and over-detection. Using
cumulative incidence of clinically significant PCa (csPCa) as the criterion,
re-screening intervals could range from approximately three years for men with
initial PSA 2-2.99 ng/mL, six years for men with PSA 1-1.99 ng/mL to 10 years
for men with PSA <1 ng/mL"
-
Role of Serum Creatinine
Levels in Prognostic Risk Stratification of Prostate Cancer Patients - Med
Sci Monit 2022 Jul 22 - "Serum creatinine level was an
independent predictor of high-risk prognosis. Controlling serum creatinine
levels between 70.1 and 76.8 umol/L in patients with prostatic cancer may
benefit the prognosis of patients with prostatic cancer"
-
The role of testosterone
replacement therapy and statin use, and their combination, in prostate cancer
- Cancer Causes Control 2021 May 26 - "testosterone
replacement therapy (TTh) ... prostate cancer-specific mortality (PCSM) ...
Pre-diagnostic use of TTh or statins, independent or in combination, was
inversely associated with aggressive PCa, including in NHW and Hispanics men,
but was not with PCSM. The findings for use of statins with aggressive PCa are
consistent with cohort studies"
-
Efficacy and Safety of
Tadalafil vs Tamsulosin in Lower Urinary Tract Symptoms (LUTS) as a Result of
Benign Prostate Hyperplasia (BPH)-open Label Randomised Controlled Study -
Int J Clin Pract 2020 Jun 15;e13530 - "100 patients of
BPH with an IPSS score of more than 7, without any complications of the disease
were computer randomised to receive therapy with either tamsulosin 0.4 mg or
tadalafil 5 mg once daily for a period of 2 months ... once daily monotherapy
with tadalafil 5 mg or tamsulosin 0.4 mg was equally efficacious in the
management of moderate to severely bothersome LUTS in majority of patients as a
result of BPH. The role of Tadalafil monotherapy in BPH patients with
predominant storage LUTS merits further evaluation with larger trials" -
ReliableRXPharmacy carries tadalafil.
-
Testosterone therapy in
relation to prostate cancer in a US commercial insurance claims database -
Cancer Epidemiol Biomarkers Prev. 2019 Oct 22 - "Men who
received TT did not have a higher rate of prostate cancer compared with the
unexposed or PDE5i comparison groups. The inverse association between TT and
prostate cancer could be the result of residual confounding, contraindication
bias, or undefined biologic effect"
-
AUA 2019: More Evidence
That Testosterone May Be Safe After Treatment for Prostate Cancer -
Medscape, 8/13/19 - "Neither of these cohorts showed any
evidence of a problem from receiving TRT after diagnosis and treatment for
prostate cancer. On the other hand, neither of these studies, and none of the
others that have been presented, clearly prove that TRT is safe. Nevertheless,
there is not an obvious risk to patients from these trials and, when presented
with the information on the risks and benefits, most men are likely to make a
quality-of-life decision, choosing TRT in order to restore their sexual
function"
-
Trips
to the toilet at night are a sign of high blood pressure - Science Daily,
3/30/19 - "Nocturia (one or more nocturia events per
night) was significantly associated with hypertension after controlling for
possible confounders (odds ratio 1.4; p<0.01). The risk of hypertension rose
significantly as the number of nocturia events per night increased ... A healthy
lifestyle is also advised, including salt restriction, alcohol moderation,
healthy eating, regular exercise, weight control, and smoking cessation"
-
Calcium Channel Blocker
Use and the Risk for Prostate Cancer: A Population-Based Nested Case-Control
Study - Pharmacotherapy. 2019 Mar 27 - "The results of this large
population-based study indicate a modest but significant increase in the risk of PCa among CCB users, and the risk increases with duration of use"
-
Testosterone Therapy and
PCa Risk in Hypogonadal Men - Medscape, 12/27/17 -
"At the end of the day, we can say that administering testosterone replacement
to men who are hypogonadal does not appear to raise their risk of getting
prostate cancer. We must ask ourselves why it should appear to lower the risk of
having more aggressive disease. Another question is, why should men who are
untreated when they are hypogonadal have a higher risk from their cancer?
Curiously, we reported with some other authors many years ago on men who were
being diagnosed and treated for metastatic prostate cancer. We found that lower
testosterone conveyed a worse survival compared with men with higher
testosterone levels"
-
Statin Use, Serum Lipids,
and Prostate Inflammation in Men with a Negative Prostate Biopsy: Results from
the REDUCE Trial - Cancer Prev Res (Phila). 2017 May 9 -
"Given the possible role for inflammation in prostate
cancer, the inverse association between statins and prostate inflammation
suggests a mechanism linking statins with lower advanced prostate cancer risk"
-
Erections Restored With Fat
Cells After Prostatectomy - Medscape, 3/27/17 - "The
men, all of whom experienced erectile dysfunction after radical prostatectomy,
reported intercourse when assessed 6 and 12 months after the injection"
-
Persistent Sexual
Dysfunction with Finasteride 1 mg Taken for Hair Loss - Pharmacotherapy.
2016 Sep 19 - "persistent sexual dysfunction (PSD) ...
The rate of PSD for finasteride 1 mg users and omeprazole users was 37.9 and
15.0 per 1000 person-years, respectively ... The risk of PSD in men who stopped
finasteride 1 mg therapy was higher than that for omeprazole users. Patients who
stopped finasteride therapy sought physician visits for sexual dysfunction up to
1 year after stopping finasteride" - Both are good to know but I don't
get why they're comparing a proton pump inhibitor to a 5α-reductase inhibitor.
-
Risk of Erectile
Dysfunction Associated With Use of 5-α Reductase Inhibitors for Benign Prostatic
Hyperplasia or Alopecia - Medscape, 10/20/16 - "5-α
reductase inhibitor (finasteride or dutasteride) ... 5-α reductase inhibitors do
not seem to significantly increase the risk of incident erectile dysfunction,
regardless of indication for use. Risk of erectile dysfunction increased with
longer duration of benign prostatic hyperplasia"
-
Does ADT for Prostate
Cancer Increase Risk for Dementia? - Medscape, 10/13/16 -
"The observational study found more than twice the
incidence of dementia among ADT users compared to nonusers. The absolute
increased risk of developing dementia was 4.4% at 5 years, with a rate of 7.9%
among ADT users vs 3.5% among nonusers"
-
Dietary Saturated Fats Tied
to Aggressive Prostate Cancer - Medscape, 10/13/16 -
"There was also a suggestion of a stronger association among men who did not
take statins, which mitigate the effect of fat-related cholesterol ... saturated
fat intake affects cholesterol levels, which, in turn, have been tied to
prostate cancer development in epidemiological and laboratory ... a high total
fat-adjusted saturated fat intake was associated with an elevated odds ratio
(OR) for aggressive prostate cancer (OR, 1.51; 95% confidence interval [CI],
1.10 - 2.06; P trend = .009). However, a high total fat-adjusted saturated fat
intake had only an attenuated, nonsignificant association in statin users (OR,
1.16; ... There were no statistically significant associations between
aggressive prostate cancer and PUFA and MUFA intake, or trans fats intake ... a
high level of total cholesterol intake was associated with aggressive prostate
cancer in white Americans (OR, 1.62 ... Men who consumed 10% fewer calories from
animal fat and 10% more calories from vegetable fat after diagnosis had a 44%
lower risk of mortality"
-
Common Prostate Cancer Treatment May Double Risk for Alzheimer's -NBC News,
12/7/15 - "The study of more than 16,000 men being
treated for prostate cancer showed that those who got any kind of androgen
deprivation therapy had nearly twice the risk of developing Alzheimer's over the
next 2 ½ years as men getting other treatments"
-
Long-term 'T' Does Not Up
Risk for High-grade Prostate Cancer - Medscape, 11/25/15 -
"In the study cohort, 574 men had used testosterone in
the 5 years before diagnosis and 51,945 has not. The incidence of high-grade
prostate cancer was 20.1% in the testosterone users and 27.0% in the nonusers"
-
Dr. Samadi: New Study on 'Silent Killer' Prostate Cancer Is Alarming for Men
- Fox News, 6/20/15 - "Dr. Samadi explained that in
2011, the United States Preventive Services Task Force (USPSTF) began
discouraging the use of prostate-specific antigen-based screenings for prostate
cancer ... that resulted in less testing, which resulted in a reduction in
detections of intermediate and high-risk prostate cancer"
-
Best Evidence Yet!:
Ejaculation Reduces Prostate Cancer Risk - Medscape, 5/17/15 -
"After potential confounders were controlled for, the
risk for prostate cancer was 20% lower in men who ejaculated at least 21 times a
month than in men who ejaculated 4 to 7 times a month. The 20% risk reduction
was seen at ages 20 to 29 and 40 to 49, and for the lifetime average"
-
Course and
Predictors of Cognitive Function in Patients With Prostate Cancer Receiving
Androgen-Deprivation Therapy: A Controlled Comparison - J Clin Oncol. 2015
May 11 - "Men treated with ADT were more likely to
demonstrate impaired cognitive performance within 6 months after starting ADT
relative to matched controls and to continue to do so within 12 months after
starting ADT"
-
Statins May Slow Prostate Cancer Progression: Study - WebMD, 5/7/15 -
"Among 926 men undergoing hormone therapy for advanced
prostate therapy, those taking statins saw significant benefits, researchers
said. Their cancer remained stable for an average of 27.5 months before
worsening, compared with an average of 17.4 months among men not taking statins
... statins keep testosterone from entering cancer cells"
-
Can Statins Help Improve Prostate Cancer Survival? - WebMD, 3/10/15 -
"Taking a statin alongside androgen deprivation therapy
slowed the progress of prostate cancer by about 10 months ... Patients on a
statin have a significantly longer time to progression"
-
Long-term testosterone therapy does not increase risk of prostate cancer -
Science Daily, 11/25/14 -"Although considerable evidence
exists indicating no relationship between testosterone and increased risk of
developing PCa, decades of physician training with the notion that testosterone
is fuel for PCa made it difficult to dispel such fallacy and the myth continued
to persist ... PCa incidence per 10,000 patient-years in cohorts 1 and 2 was
54.4 and 30.7, respectively, which is lower than 116 reported by the PLCO
(Prostate, Lung, Colorectal, and Ovarian Cancer Screening Trial) and 96.6
reported by the ERSPC ( European Randomized Study of Screening for Prostate
Cancer)"
-
Prostate Cancer Recurrence Risk Tied to Lipid Levels - NYTimes.com, 10/13/14
- "followed the men for an average of about five years
after surgery ... for each 10 milligrams per deciliter increase in total
cholesterol above 200 milligrams per deciliter, there was a 9 percent increased
risk of recurrence. Compared with people with normal triglycerides, those with
levels above 150 milligrams per deciliter had a 35 percent increased risk of
recurrence"
-
The Effect of Testosterone
Replacement on Prostate Cancer - Medscape, 8/14/14 -
"This meta-analysis shows that regardless of the administration method, TRT is
the short-term safety and does not promote prostate cancer development or
progression but long-term data are warranted with justifiable end points"
-
Vasectomy may increase risk of aggressive prostate cancer - Science Daily,
7/11/14 - "The results showed a 10% increased risk of
prostate cancer overall in men who had a vasectomy. Vasectomy was not
significantly associated with risk of low-grade cancer. However, vasectomy was
associated with a stronger risk of advanced and lethal prostate cancer, with an
increased risk of 20% and 19% respectively. Among men who received regular PSA
screening, the relative increase in risk of lethal prostate cancer was 56%. The
effect appeared to be stronger among men who had a vasectomy at a younger age"
-
Patient-reported Sexual Outcomes After Holmium Laser Enucleation of the
Prostate: A 3-year Follow-up Study - Urology. 2014 Jun 20 -
"These data confirm HoLEP has a significant impact on
IPSS and no adverse impact on long-term patient reported sexual function"
-
Statins and Prostate
Cancer: Novel, Encouraging Study - Medscape, 5/13/14 -"radical
prostatectomy (RP) ... not
all statins are equal; the protective effect was limited to the lipophilic
statins (e.g., atorvastatin, lovastatin, and simvastatin) ... researchers
retrospectively compared biochemical recurrence in men who started statins after
surgery with recurrence in men who were never users ... In all, only 16% post-RP
statin users (65/400) had biochemical recurrence, compared with 45% of nonusers
(337/746)"
-
Largest Prostate Screening
Trial Still Shows it Saves Lives - Medscape, 4/23/14 -
"we found a prostate cancer mortality reduction of 20%
in men who started PSA screening after age 60, while men who started to screen
before age 60 had a reduction of 50%"
-
In Prostate Hyperplasia,
Combo Pill Slows Progress - Medscape, 4/18/14 - "All
men received lifestyle advice about caffeine and alcohol avoidance, fluid
management, and bladder retraining. They were then randomized to watchful
waiting (n = 373) or to daily treatment for 2 years with a single capsule
containing the 5-alpha reductase inhibitor dutasteride 0.5 mg plus the alpha
blocker tamsulosin 0.4 mg (n = 369) ... At the end of the study, the rate of
clinical progression of benign prostate hyperplasia was 43.1% lower in the
treatment group than in the watchful waiting group (18% vs 29%; P < .001) ...
Similarly, improvements in hyperplasia symptoms and related quality of life were
significantly greater the treatment group"
-
Prostate
treatment lasts, preserves fertility - Science Daily, 3/24/14 -
"Patients are discharged three to six hours after the
treatment with most of the individuals we've treated noting almost immediate
symptom relief ... PAE does not cause sexual dysfunction and preserves fertility
... Success rates in 469 patients (ages 45−89) treated with PAE were as follows:
87.2 percent at three months, 80.2 percent at 18 months and 72.3 percent at
three years"
-
Comparison
of alfuzosin 10 mg with or without propiverine 10 mg, 20 mg in men with lower
urinary tract symptom and an overactive bladder: randomised, single-blind,
prospective study - Int J Clin Pract. 2014 Jan 29 -
"postvoid residual volume (PVR) ... In patients with LUTS and overactive
bladder, combined therapy with alfuzosin 10 mg plus propiverine 20 mg was
significantly more effective than alfuzosin monotherapy and propiverine 10 mg
combined therapy in terms of improving OABSS while not significantly affecting
Qmax or PVR"
-
Tadalafil -
a therapeutic option in the management of BPH-LUTS - Int J Clin Pract. 2014
Jan;68(1):94-103 - "While tadalafil is most frequently
recognised as a standard treatment option for men with ED, it also represents a
well-tolerated and effective treatment option in men with moderate to severe
BPH-LUTS"
-
Penile Length After
Prostatectomy - Medscape, 12/17/13 - "the average
penile length at 6 months was not significantly different compared with the
length before surgery. However, whereas those men who were taking a daily
phosphodiesterase type 5 (PDE5) inhibitor had no significant loss of length at 6
months, those not taking a daily PDE5 inhibitor had an average loss of 4.4 mm"
- Note: 4.4 mm = 0.17 inches.
-
Efficacy of
Holmium Laser Enucleation of the Prostate in Patients With Non-neurogenic
Impaired Bladder Contractility: Results of a Prospective Trial - Urology.
2013 Nov 12 - "Fourteen patients with detrusor
hypocontractility and 19 patients with acontractility and evidence of BPO
underwent HoLEP during the study period. Median age was 71.5 and 75 years,
respectively ... Individuals with hypocontratile bladders had statistically
significant improvements in American Urological Association Symptom Index (21.5
vs 3; P = .014), maximum urine flow (Qmax, 10 vs 21 mL/s; P = .001), and
postvoid residual (250 vs 53 mL; P = .007) from baseline to postoperative
assessments"
-
Use of
Statins and the Risk of Death in Patients With Prostate Cancer - J Clin
Oncol. 2013 Nov 4 - "Postdiagnostic use of statins was
associated with a decreased risk of prostate cancer mortality (HR, 0.76; 95% CI,
0.66 to 0.88) and all-cause mortality (HR, 0.86; 95% CI, 0.78 to 0.95). These
decreased risks of prostate cancer mortality and all-cause mortality were more
pronounced in patients who also used statins before diagnosis (HR, 0.55; 95% CI,
0.41 to 0.74; and HR, 0.66; 95% CI, 0.53 to 0.81, respectively), with weaker
effects in patients who initiated the treatment only after diagnosis (HR, 0.82;
95% CI, 0.71 to 0.96; and HR, 0.91; 95% CI, 0.82 to 1.01, respectively)"
-
Men (Aged
40-49 Years) With a Single Baseline Prostate-specific Antigen Below 1.0 ng/mL
Have a Very Low Long-term Risk of Prostate Cancer: Results From a Prospectively
Screened Population Cohort - Urology. 2013 Oct 19 -
"Men (aged 40-49 years) can be stratified with a baseline PSA. If it is below
1.0 ng/mL, there is very little risk for developing a lethal CaP, and as many as
75% of men might be able to avoid additional PSA screening until 55 years.
Conversely, men aged 40-49 years with a baseline PSA level >1.0 ng/mL had a
significant risk of CaP diagnosis and should be monitored more closely"
-
FDA OKs New Device to Treat
BPH - Medscape, 9/13/13 - "The UroLift system
relieves the urine flow by pulling back the prostate tissue that is pressing on
the urethra ... found a 30% increase in urine flow and a steady amount of
residual urine in the bladder"
-
Night Work May Shift PSA
Level Higher - Medscape, 8/22/13 - "Much of the
previous work on the link between cancer and nightshifts has focused on breast
cancer ... Recently, a study demonstrated a possible link between nightshift
work and ovarian cancer ... The study authors accessed 3 years of data (ranging
from 2005 - 2010 surveys) and found a total of 2017 men (aged 40 - 65 years)
having a current PSA test result and no history of cancer ... The age-adjusted
odds ratio for having a total PSA result of 4.0 ng/mL or greater among shift
workers compared with non–shift workers was 2.48 ... When they analyzed the data
in a multivariable model (adjusted for age, body mass index, race/ethnicity,
health insurance, average hours of sleep per night, and months on the current
job), the odds ratio increased slightly to 2.62"
-
Shiftwork
and Prostate-Specific Antigen in the National Health and Nutrition Examination
Survey - J Natl Cancer Inst. 2013 Aug 13 -
"Shiftwork has been implicated as a risk factor for prostate cancer. Results
from prior studies have been mixed but generally support an association between
circadian disruption and prostate cancer ... We combined three NHANES surveys
(2005-2010) to obtain current work schedule among employed men aged 40 to 65
years with no prior history of cancer (except nonmelanoma skin cancer) ... We
found a statistically significant, age-adjusted association between current
shiftwork and elevated PSA at the 4.0ng/mL or greater level (odds ratio = 2.48,
95% confidence interval [CI] = 1.08 to 5.70; P = .03)" - Note: Many
believe that the increased risk of breast cancer in shift workers is attributed
to melatonin. Maybe it's the same for prostate cancer.
-
18-Year Study Finds Drug Cut Prostate Cancer Risk - WebMD, 8/14/13 -
"an 18-year follow-up on the Prostate Cancer Prevention
Trial, which took place in the late 1990s. Back then, the trial found that
finasteride could reduce overall risk of prostate cancer by 25 percent -- but
that it increased by 27 percent the risk of high-grade prostate cancer in those
men who did wind up with the disease ... the drug actually worked better than
earlier reported in reducing prostate cancer risk ... You take Proscar for six
months to a year and it halves the size of your prostate, but the cancer inside
your prostate does not shrink .... If I'm performing a biopsy on a smaller
prostate, I'm more likely to hit that cancer than if I am sticking into a larger
prostate. This drug wasn't causing more prostate cancer. It's causing more
prostate cancer to be diagnosed" - [Abstract]
-
Ramelteon With an alpha
1-Blocker Decreases Nocturia in BPH - Medscape, 7/31/13 -
"Ramelteon at 8 mg once daily for one month was added to
the α1-blocker. A self-administered questionnaire including the International
Prostate Symptom Score (IPSS), quality of life (QoL) index, Overactive Bladder
Symptom Score (OABSS), and Nocturia Quality-of-Life Questionnaire (N-QOL) were
assessed before and one month after starting ramelteon ... The mean score on
IPSS question 7 (nocturia) decreased significantly from 2.88 before starting
ramelteon to 2.41 one month after starting the medication (P = 0.03). The mean
total OABSS decreased significantly from 6.31 to 5.38 (P = 0.03), and the mean
for OABSS question 2 (nighttime frequency of nocturia) also significantly
decreased from 2.63 to 2.13 (P = 0.01). The mean total N-QOL score did not
change significantly" - Yeah but maybe it was just the deeper sleep that
was responsible for less trips to the bathroom.
-
Efficacy and
Safety of Tadalafil 5 mg Once Daily for Lower Urinary Tract Symptoms Suggestive
of Benign Prostatic Hyperplasia: Subgroup Analyses of Pooled Data From 4
Multinational, Randomized, Placebo-controlled Clinical Studies - Urology.
2013 Jul 19 - "The safety database included 1500 men
randomized to tadalafil 5 mg once daily or placebo for 12 weeks ... In these
pooled data analyses, tadalafil 5 mg improved LUTS/BPH across subgroups of age,
LUTS severity, testosterone levels, and prostate volume"
-
Diabetes and
prostate cancer screening in black and white men - Cancer Causes Control.
2013 Jul 17 - "Southern Community Cohort Study between
2002 and 2009 ... 18,809 black and 6,404 white men aged 40-79 years ... After
adjustment for confounding, diabetic black [odds ratio (OR) 1.12, 95 %
confidence interval (CI) 1.01-1.25] and white (OR 1.25, 95 % CI 1.03-1.51) men
were more likely to undergo recent prostate cancer screening compared to
non-diabetic men of the same race"
-
Testosterone Produces Mixed
Results in Prostate Cancer Study - Medscape, 7/18/13 -
"In men with prostate cancer, the use of transdermal
testosterone-replacement therapy (TRT) after radical prostatectomy produced an
increase in testosterone levels, but also had the undesirable effect of
increasing prostate-specific antigen (PSA) levels ... However, the use of TRT
did not appear to increase biochemical recurrence rates during follow-up, which
was a median of 27.5 months for treated men"
-
New Risk With ADT in
Prostate Cancer: Kidney Injury - Medscape, 7/16/13 -
"In the study of more than 10,000 men with prostate cancer, the therapy, which
has been tied to diabetes, heart disease, stroke, and other conditions, was
significantly associated with an increased risk for acute kidney injury (AKI).
This serious adverse event has a mortality rate of 50% ... ADT reduces
testosterone levels, which leads to a hypogonadal condition marked by metabolic
changes such as dyslipidemia, hyperglycemia, and an increase in fat mass"
-
The
Relationship Between Lower Urinary Tract Symptoms/Benign Prostatic Hyperplasia
and the Number of Components of Metabolic Syndrome - Urology. 2013 Jul 10 -
"A total of 1224 male police officers aged 50-59 years
who had participated in a health examination were included ... the cases of
LUTS/BPH were positively associated with the number of MetS components"
-
Male breast cancer and
5-alpha reductase inhibitors, finasteride and dutasteride - J Urol. 2013 May
9 - "No statistically significant associations were
observed between 5ARIs and breast cancer, regardless of exposure assessment
prior to index date"
-
Taking
cholesterol-lowering drugs may also reduce the risk of dying from prostate
cancer - Science Daily, 5/2/13 - "After a mean
follow-up of almost eight years, the researchers found that the risk of death
from prostate cancer among statin users was 1 percent as compared to 5 percent
for nonusers"
-
Relationship
Between Predictors of the Risk of Clinical Progression of Benign Prostatic
Hyperplasia and Metabolic Syndrome in Men With Moderate to Severe Lower Urinary
Tract Symptoms - Urology. 2013 Apr 18 - "The
percentage of participants with ≥1 predictor for the progression of BPH, the
percentage of participants with a total prostate volume of ≥31 cm3, and the
percentage of participants with a postvoid residual urine volume of ≥39 mL
increased significantly with the increase in the number of components of the
MetS (P = .003, P = .001, and P = .007, respectively). After adjusting for age
and serum testosterone levels, the MetS was shown to be significantly associated
with the presence ≥1 predictor for the progression of BPH"
-
Three PSA Tests Over
Lifetime Sufficient for Many Men - Medscape, 4/18/13 -
"just 3 PSA tests over the course of a lifetime is
sufficient for many men ... This premise comes from a team led by Andrew
Vickers, PhD, from the Memorial Sloan-Kettering Cancer Center in New York City
... The best age for this initial PSA test is around 45 years, unless there is a
strong family history of prostate cancer. Age 40 might be too early, and age 50
might be too late to identify a man's risk of developing an aggressive cancer
... Men who were found to have a PSA level below 1 ug/L on the initial test
would be advised to return for screening in their early 50s and again at age 60.
At the age of 60, men who still had a PSA level below 1 ug/L would be exempt
from further screening"
-
Nearly
half of all deaths from prostate cancer can be predicted before age 50 -
Science Daily, 4/16/13 - "Within 25 to 30 years, 44% of
deaths from prostate cancer occurred in those with the top 10% of PSA levels at
age 45-49, a PSA of about 1.5 ng / ml or more. The risk of prostate cancer death
was more than 10 times greater in this group compared to men with the lowest 25%
of PSA levels"
-
Nonsurgical Treatment Turns Back the Clock, Shrinks Enlarged Prostate -
Science Daily, 4/15/13 - "The early findings hail from
the first prospective U.S. trial of prostatic artery embolization (PAE), which
reduces blood flow to the prostate, thus shrinking it ... 13 of 14 men (92
percent) who had PAE noticed a significant decrease in symptoms after one month"
-
Surgery
is superior to radiotherapy in men with localized PCa - Science Daily,
3/17/13
-
GreenLight
XPS 180W vs HPS 120W Laser Therapy for Benign Prostate Hyperplasia: A
Prospective Comparative Analysis After 200 Cases in a Single-center Study -
Urology. 2013 Feb 12 - "Mean operating room time (43 vs
79 minutes) and mean laser time (22 vs 37 minutes) were significantly shorter
for the GL-XPS group (both P <.01) and mean energy delivery was comparable (226
vs 268 kJ, P = .21), GL-XPS vs GL-HPS. Mean fiber use (1.0 vs 1.5) and 3L saline
bags (4.1 vs 7) were significantly lower with GL-XPS, all P <.01. There were no
significant differences in the 30-day complication rate. To date, no urethral
strictures and 1 GL-HPS retreatment were observed. PSA reduction at 6 months was
significantly greater with GL-XPS (54% vs 79%, P <.01)"
-
The efficacy
and safety of alpha-1 blockers for benign prostatic hyperplasia: an overview of
15 systematic reviews - Curr Med Res Opin. 2013 Jan 16 -
"Doxazosin could significantly reduce urinary symptom
scores compared with tamsulosin (MD -1.60, 95%CI -1.80--1.40) and alfuzosin
(MD1.7, 95%CI 0.76-1.64). Indirect evidence suggested that the urinary symptom
score and PUF at end point in men treated with naftopidil were similar to those
treated with other α1-blockers. α1-blockers generally lead to more adverse
effects compared with placebo, and those caused by terazosin were more frequent
than others. Conclusions: α1-blockers are more effective than placebo for BPH,
doxazosin and tamsulosin seem to be more effective than other α1-blockers. The
adverse effects caused by α1-blockers are generally mild and well tolerated"
-
Pricey
prostate treatment no safer than radiation - NBC News, 12/28/12 -
"After a year, however, the study found the same number
of side effects among men who'd had both treatments"
-
Experience with more than
1,000 holmium laser prostate enucleations for benign prostatic hyperplasia -
J Urol. 2013 Jan;189 - "Holmium laser prostate
enucleation is safe and effective for benign prostatic hyperplasia. The
complication rate is low, and incontinence and the need for ancillary procedures
are rare for holmium laser prostate enucleation with durable long-term results"
-
Proton
therapy treatment preserves quality of life for men with prostate cancer,
studies suggest - Science Daily, 10/28/12
-
Reducing
the side effects of treatment for prostate cancer - Science Daily, 8/24/12 -
"tamoxifen reduced the risk of both gynecomastia and
breast pain at 3, 6, 9, and 12 months of treatment compared to men who received
no treatment. Overall, treatment with tamoxifen was more successful in reducing
breast symptoms than treatment with an aromatase inhibitor (anastrazole) or
radiotherapy" - Note: They left out Femara (letrozole).
-
Prostate
cancer survival rates improved since introduction of PSA testing - Science
Daily, 8/23/12 - "Median survival in trial S8494, which
enrolled patients from 1985 to 1986, was 30 months, and median survival in trial
S8894, which enrolled patients from 1989 to 1994, was 33 months. In contrast,
median survival in trial S9346, which enrolled patients from 1995 to 2009, was
49 months. A 30% decreased risk of death was found in the most recent trial
(S9346) from the previous trial (S8894)"
-
Pan-fried meat increases risk of prostate cancer, new study finds - Science
Daily, 8/16/12 - "the risk of prostate cancer may be a
result of potent chemical carcinogens formed when meats are cooked at high
temperatures ... Researchers examined pooled data from nearly 2,000 men who
participated in the California Collaborative Prostate Cancer Study ... men who
ate more than 1.5 servings of pan-fried red meat per week increased their risk
of advanced prostate cancer by 30 percent ... men who ate more than 2.5 servings
of red meat cooked at high temperatures were 40 percent more likely to have
advanced prostate cancer ... When considering specific types of red meats,
hamburgers -- but not steak -- were linked to an increased risk of prostate
cancer, especially among Hispanic men. "We speculate that these findings are a
result of different levels of carcinogen accumulation found in hamburgers, given
that they can attain higher internal and external temperatures faster than
steak," ... pan-frying, regardless of meat type, consistently led to an
increased risk of prostate cancer"
-
Study: PSA Testing Cuts Worst Metastatic Prostate Cancers - WebMD, 7/30/12 -
"So should men get regular PSA tests? ... Many
urologists, who often treat men suffering terribly from late-stage prostate
cancer, agree with Messing that they should. But many experts on screening
tests, who often see doctors fail to accept medical evidence that conflicts with
their experience, agree with LeFevre that they should not ... The American
Cancer Society has this advice: Men should only get the PSA test after having a
detailed talk with a doctor about the benefits and risks of PSA screening"
- Clears as mud now!!
-
Men with
prostate cancer more likely to die from other causes - Science Daily,
7/26/12 - "Men diagnosed with prostate cancer are less
likely to die from the disease than from largely preventable conditions such as
heart disease ... The researchers examined causes of death among prostate cancer
cases recorded in the U.S. Surveillance, Epidemiology, and End Results Program
(over 490,000 men from 1973 to 2008) and the nationwide Swedish Cancer and Cause
of Death registries (over 210,000 men from 1961 to 2008) ... during the study
period, prostate cancer accounted for 52% of all reported deaths in Sweden and
30% of reported deaths in the United States among men with prostate cancer;
however, only 35% of Swedish men and 16% of U.S. men diagnosed with prostate
cancer died from this disease. In both populations, the risk of prostate
cancer-specific death declined, while the risk of death from heart disease and
non-prostate cancer remained constant. The five-year cumulative incidence of
death from prostate cancer was 29% in Sweden and 11% in the United States ...
lifestyle changes such as losing weight, increasing physical activity, and
quitting smoking, may indeed have a greater impact on patients' survival than
the treatment they receive for their prostate cancer"
-
Greater
Percent-free Testosterone Is Associated With High-grade Prostate Cancer in Men
Undergoing Prostate Biopsy - Urology. 2012 May 18 -
"On multivariate analysis, testosterone (P ≥ .11) and free testosterone (P ≥
.45) were not significantly associated with low- or high-grade PCa. A greater
%FT level significantly predicted high-grade PCa on both crude (P = .01) and
multivariate (P = .02) analysis but not low-grade PCa (P ≥ .38). When examined
in tertiles, men in the greatest %FT tertile had a significant twofold increased
risk of high-grade PCa (odds ratio 2.04, 95% confidence interval 1.23-3.37, P =
.005)"
-
Want to
avoid erectile dysfunction following prostate cancer surgery? Find an
experienced, gentle surgeon - Science Daily, 5/16/12 -
"a good nerve-sparing surgical technique can lessen the
likelihood of these undesirable outcomes, as can the skill and experience of the
surgeon ... the study authors recommend that men undergoing robotic-assisted
surgery for prostate cancer should look for a doctor who has performed at least
1,000 surgeries and who actively seeks to improve and enhance his/her surgical
skills ... greater surgeon experience and more delicate handling of the nerves
to minimize stretch injury helped improve erectile function significantly ...
surgeon improvement hit a plateau after 950 cases"
-
Erectile
dysfunction after radical prostatectomy: the impact of nerve-sparing status and
surgical approach - Int J Impot Res. 2012 May 3 -
"Before surgery, 39% of patients had a severe ED (complete impotence). At 3, 6
and 12 months after surgery, it was 80, 79 and 71%, respectively. Although the
surgical approach had no significant effect on EF, patients who had undergone
nerve-sparing surgery had significantly lower ED rates. Nevertheless, 1 year
after RP, 66% of these patients had severe ED"
-
Dutasteride/Tamsulosin: in benign prostatic hyperplasia - Drugs Aging. 2012
May 1;29(5):405-19 -
"Dutasteride 0.5 mg/day plus tamsulosin 0.4 mg/day
improved lower urinary tract symptoms (LUTS) to a significantly greater extent
than dutasteride or tamsulosin alone in men with BPH, moderate to severe LUTS
and an increased risk of disease progression, according to the results of the
randomized, double-blind, multinational CombAT trial. The mean change from
baseline in the total International Prostate Symptom Score was significantly
greater with dutasteride plus tamsulosin than with dutasteride or tamsulosin
alone after 2 years (primary endpoint) and 4 years of therapy. After 4 years'
therapy in the CombAT trial, the time to first acute urinary retention or
BPH-related surgery (primary endpoint) significantly favoured men with
symptomatic BPH who were receiving dutasteride plus tamsulosin versus those
receiving tamsulosin alone, with no significant difference between recipients of
dutasteride plus tamsulosin and recipients of dutasteride alone. In the CombAT
trial, health-related quality of life and treatment satisfaction were improved
to a significantly greater extent with dutasteride plus tamsulosin than with
dutasteride or tamsulosin alone. Combination therapy with oral dutasteride plus
tamsulosin was generally well tolerated in patients with symptomatic BPH in the
CombAT trial" - See
dutasteride (Avodart) 30 x 0.5mg capsules at International Antiaging
Systems.
-
Statin Use
As a Moderator of Metformin Effect on Risk for Prostate Cancer Among Type 2
Diabetic Patients - Diabetes Care. 2012 Mar 28 -
"Mean follow-up was ~5 years, and 7.5% had a PCa diagnosis. Statin use modified
the effect of metformin on PCa incidence (P < 0.0001). Metformin was associated
with a significantly reduced PCa incidence among patients on statins (HR 0.69
[95% CI 0.50-0.92]; 17 cases/533 metformin users vs. 135 cases/2,404
sulfonylureas users) and an increased PCa incidence among patients not on
statins (HR 2.15 [1.83-2.52]; 22 cases/175 metformin users vs. 186 cases/1,930
sulfonylureas users). The HR of PCa incidence for those taking metformin and
statins versus those taking neither medication was 0.32"
-
PSA Test Cuts Prostate-Cancer Deaths -- At a Cost - WebMD, 3/14/12 -
"The odds of dying from prostate cancer are 21% lower 11
years after men are offered routine screening with the controversial PSA blood
test ... We more definitively show there is an advantage in screening for
prostate cancer, and that the reduction in prostate cancer mortality for those
men who are screened amounts to 29%"
-
Heart
disease may be a risk factor for prostate cancer - Science Daily, 2/8/12 -
"What's good for the heart may be good for the prostate
... Having coronary artery disease increased the men's risk of prostate cancer
by 35 percent, with the risk rising over time. The group was 24 percent more
likely to be diagnosed with prostate cancer within the first two years of the
study than men who reported no heart disease, and by four years into the study,
this group's prostate cancer risk was 74 percent higher"
-
Dutasteride Is Seen to Curtail Cancer Left in Prostate - NYTimes.com,
1/23/12 - "Two previous studies suggested that
dutasteride and a similar drug, finasteride, could actually protect men from
prostate cancer ... Three years later, the cancer had progressed in 54 men in
the dutasteride group, or 38 percent, and in 70 men in the placebo group, or 48
percent"
-
Study: PSA test doesn't save lives - USATODAY.com, 1/6/12 -
"men randomly assigned to get PSA tests were 12% more
likely to be diagnosed with prostate cancer, but no more likely to die. That
suggests that 12% of men screened with the PSA were "overdiagnosed," or
diagnosed with cancer that didn't need to be found, leading to unnecessary
treatment ... the National Cancer Institute, which funded the $250 million trial
... it's possible that their study could have underestimated the benefits of
screening. That's because only 85% of the men randomly assigned to get routine
PSA screening actually did so. In the comparison arm of the trial, however,
about half of the men not assigned to get a PSA decided to get one on their own"
- Note: So let's see, a quarter billion for the study and the answer is "we're
not sure because many in the placebo group got the test anyway".
-
MRI Highly Accurate
in Guiding Prostate Biopsy - Medscape, 12/5/11 - "In
the post-prostate-specific antigen era, the diagnosis of prostate cancer is made
using the 10-12 core transrectal US-guided biopsy procedure. However, this
initial biopsy procedure can have a miss rate of 71% ... This study evaluated
whether multiparametric MRI provides a diagnostic advantage over the standard
T2W MRI in this challenging clinical situation. Although combination of all 4
MRI techniques provided a perfect detection rate in this group of patients,
excluding 1H-MRS from the combination was associated with a miss rate of only
6%"
-
Prostate cancer may be
tied to the Pill in water supply - MSNBC, 11/14/11 -
"Several studies now have found an association between estrogen exposure and
prostate cancer ... Birth control pills often contain a type of estrogen called
ethinyloestradiol, which women taking the pills excrete in their urine. The
hormone ends up in the water supply, or is taken up by plants or animals that
use the water, and then passed up the food chain ... looked at prostate cancer
mortality and contraceptive use in 88 countries for their analysis ... results
of 'ecological' analyses like this one ... must be interpreted cautiously"
- Note: I mentioned several times about taking a quarter tablet of letrozole
every third day. It would seem like the amount of estrogen from drinking water
would be minute compared to the amount of estrogen that is reduced by taking a
small amount of letrozole. - See
letrozole at OffshoreRX.
-
Task Force to Men: Don't Get PSA Test - WebMD, 10/7/11 -
"Rising PSA levels are an early sign of prostate cancer,
but the test gives a false cancer signal up to 80% of the time. Moreover, not
all PSA-detected prostate cancers are dangerous ... The common perception that
PSA-based early detection of prostate cancer saves lives is simply not supported
by the scientific evidence ... The statement already is drawing harsh criticism,
particularly from the American Urological Association ... It is our feeling
that, when interpreted appropriately, the PSA test provides important
information ... The task force is oversimplifying a complex series of [clinical
trial] results ... I think there is real evidence of benefit for PSA screening.
Death rates from prostate cancer have gone down … It is hard for me to believe
all that is due to better treatment"
-
Tadalafil Approved for Benign Prostatic Hyperplasia - Medscape, 10/6/11 -
"The US Food and Drug Administration (FDA) today
approved tadalafil (Cialis, Eli Lilly), a phosphodiesterase-5 inhibitor, to also
treat the signs and symptoms of benign prostatic hyperplasia (BPH) as well as a
combination of BPH and erectile dysfunction (ED) when the conditions coincide
... Tadalafil joins a long list of other FDA-approved drugs for BPH symptoms:
finasteride (Proscar), dutasteride (Avodart), dusasteride plus tamsulosin
(Jalyn), and alpha-blockers terazosin (Hytrin), doxazosin (Cardura), tamsulosin
(Flomax), alfuzosin (Uroxatral), and silodosin (Rapaflo)"
-
Genetics
may explain why calcium increases risk for prostate cancer - Science Daily,
9/16/11 - "The team targeted a genetic allele that is
more common in populations of African origin than in other populations and which
is associated with regulating the absorption of calcium ... men who reported the
highest intake of calcium were two times more likely to have localized and
advanced prostate cancer than those who reported the lowest. Men with a genotype
associated with poor calcium absorption were 59 percent less likely to have been
diagnosed with advanced prostate cancer than men who genetically were the best
absorbers of calcium. And, among men with calcium intake below the median,
genetically poor absorbers had a 50 percent decreased risk of having advanced
prostate cancer than the best absorbers"
-
Serum total
and HDL cholesterol and risk of prostate cancer - Cancer Causes Control.
2011 Sep 14 - "After excluding the first 10 years of
follow-up, men with higher serum total cholesterol were at increased risk of
overall (≥240 vs. <200 mg/dl: HR = 1.22, 95% CI 1.03-1.44, p-trend = 0.01) and
advanced (≥240 vs. <200 mg/dl: HR = 1.85, 95% CI 1.13-3.03, p-trend = 0.05)
prostate cancer. Higher HDL cholesterol was suggestively associated with a
decreased risk of prostate cancer regardless of stage or grade ... In this
population of smokers, high serum total cholesterol was associated with higher
risk of advanced prostate cancer, and high HDL cholesterol suggestively reduced
the risk of prostate cancer overall. These results support previous studies and,
indirectly, support the hypothesis that statins may reduce the risk of advanced
prostate cancer by lowering cholesterol"
-
Hormone
therapy may be hazardous for men with heart conditions, study suggests -
Science Daily, 7/26/11
-
Dutasteride
Improves Outcomes of Benign Prostatic Hyperplasia When Evaluated for Prostate
Cancer Risk Reduction: Secondary Analysis of the REduction by Dutasteride of
Prostate Cancer Events (REDUCE) Trial - Urology. 2011 Jul 14 -
"During the 4-year study, the International Prostate
Symptom Score increased in placebo-treated patients, while dutasteride-treated
patients had a stabilized or decreased International Prostate Symptom Score and
improved BPH Impact Index and quality of life due to urinary symptom scores
across all prostate volume quintiles (including prostate glands smaller than
those studied in previous dutasteride trials). 48 months, the incidence of acute
urinary retention or BPH-related surgery was significantly less in the
dutasteride group (2.5%) than in the placebo group (9%) overall (P < .001) and
in each baseline prostate volume quintile (P < .01)"
-
The
association between height and prostate cancer grade in the Early Stage Prostate
Cancer Cohort Study - Causes Control. 2011 Jul 20 -
"Overall, participants in the highest quartile of height were more than twice as
likely to have a Gleason score ≥ 7 (4 + 3) than participants in the lowest
quartile of height, OR 2.14 (95% CI 1.11, 4.14), after multivariate adjustment.
Participants in the highest quartile of height were more likely to be diagnosed
with high-grade prostate cancer than participants in the lowest quartile of
height among participants who were black, OR 8.00 (95% CI 1.99, 32.18), and
participants who had diabetes mellitus, OR 5.09 (95% CI 1.30, 19.98)"
-
Male
circumcision and penile cancer: a systematic review and meta-analysis -
Cancer Causes Control. 2011 Jun 22 - "Men circumcised in
childhood/adolescence are at substantially reduced risk of invasive penile
cancer"
-
A randomized
crossover study comparing patient preference for tamsulosin and silodosin in
patients with lower urinary tract symptoms associated with benign prostatic
hyperplasia - J Int Med Res. 2011;39(1):129-42 - "A
significant difference was observed between the proportion of patients who
preferred tamsulosin (59/84 patients; 70.2%) and those who preferred silodosin
(18/84 patients; 21.4%). A major reason for preference of either drug was 'good
efficacy'. Incidence of adverse effects was significantly lower with tamsulosin
(3/91 patients; 3.3%) than with silodosin (25/88 patients; 28.4%). These
findings indicate that tamsulosin is very effective for BPH, has few adverse
effects and that patients want to continue to use it"
-
Prostate
cancer gets around hormone therapy by activating a survival cell signaling
pathway - Science Daily, 6/14/11
-
Hormone
deprivation therapy for prostate cancer may raise diabetes risk - Science
Daily, 6/4/11 - "androgen deprivation therapy (ADT) ...
Men in the ADT group had a twofold increased probability of having diabetes
after ADT, compared with the non-ADT group, Rivera-Arkoncel reported. According
to the data, the prevalence of diabetes was 42 percent in the ADT group and 19
percent in the other group. In addition, the group receiving ADT had a higher
prevalence of the metabolic syndrome than the non-ADT group did: 37 percent
versus 28 percent, respectively"
-
When
rising PSA means prostate cancer is in patient's future - Science Daily,
5/18/11 - "A new study, however, shows nearly 70 percent
of men who had rising PSA levels and subsequent normal biopsies were eventually
diagnosed with prostate cancer"
-
Low levels
of apolipoprotein A-I and HDL are associated with risk of prostate cancer in the
Swedish AMORIS study - Cancer Causes Control. 2011 May 12 -
"ApoA-I and HDL were inversely associated with PCa risk
(e.g., HR for HDL: 0.93 (95% CI: 0.81-1.07), 0.88 (0.76-1.01), 0.81 (0.70-0.94),
for second, third, and fourth quartiles compared with the first quartile; with p
for trend: 0.004; HR for apoA-I: 1.00 (0.88-1.13), 0.93 (0.82-1.05), 0.88
(0.77-0.99),), for second, third, and fourth quartiles compared with the first
quartile; with p for trend: 0.022). ApoB, LDL, and non-HDL were not associated
with PCa risk"
-
MRI
locates prostate cancer recurrence at extremely low PSA levels - Science
Daily, 4/29/11
-
The effects of combination therapy with dutasteride plus tamsulosin on clinical
outcomes in men with symptomatic BPH: 4-year post hoc analysis of European men
in the CombAT study - Prostate Cancer Prostatic Dis. 2011 Apr 19 -
"Patients were randomised to daily tamsulosin 0.4 mg,
dutasteride 0.5 mg or both for 4 years ... Combination therapy significantly
reduced the relative risk of AUR or BPH-related surgery compared with either
monotherapy at 4 years, and also significantly reduced the risk of BPH clinical
progression. Combination therapy also provided significantly greater symptom
improvement than either monotherapy at 4 years. Safety and tolerability of
dutasteride plus tamsulosin was consistent with previous experience of this
combination and with the monotherapies. These data provide further evidence to
support the use of long-term combination therapy (dutasteride plus tamsulosin)
in men with moderate-to-severe lower urinary tract symptoms because of BPH and
prostatic enlargement"
-
Statins and
Prostate Cancer Diagnosis and Grade in a Veterans Population - J Natl Cancer
Inst. 2011 Apr 15 - "Compared with men taking an
antihypertensive medication, statin users were 31% less likely (HR = 0.69, 95%
CI = 0.52 to 0.90) to be diagnosed with prostate cancer. Furthermore, statin
users were 14% less likely (HR = 0.86, 95% CI = 0.62 to 1.20) to be diagnosed
with low-grade prostate cancer and 60% less likely (HR = 0.40, 95% CI = 0.24 to
0.65) to be diagnosed with high-grade prostate cancer compared with
antihypertensive medication users. Increased levels of total cholesterol were
also associated with both total (HR = 1.02, 95% CI = 1.00 to 1.05) and
high-grade (HR = 1.06, 95% CI = 1.02 to 1.10) prostate cancer incidence but not
with low-grade prostate cancer incidence (HR = 1.01, 95% CI = 0.98 to 1.04)"
-
Study
suggests another look at testosterone-prostate cancer link - Science Daily,
4/19/11 - "This study, involving 13 symptomatic
testosterone deficient men who also had untreated prostate cancer, suggests this
traditional view is incorrect, and that testosterone treatment in men does not
cause rapid growth of prostate cancer. It is the first to directly and
rigorously assess changes in the prostate among men with prostate cancer who
received testosterone therapy"
-
Biophysicist targeting IL-6 to halt breast, prostate cancer - Science Daily,
4/19/11 - "There is an inherent connection between
inflammation and cancer ... In the case of breast cancers, a medical review
systematically tabulated IL-6 levels in various categories of cancer patients,
all showing that IL-6 levels elevated up to 40-fold, especially in later stages,
metastatic cases and recurrent cases ... The current research offers us an
exciting new therapeutic paradigm: targeting tumor microenvironment and
inhibiting tumor stem cell renewal, leading to a really effective way to
overcome breast tumor drug resistance, inhibiting tumor metastasis and stopping
tumor recurrence" - Note: See the "Alternative News" section of my
IL-6 page and my
inflammation page for ways to reduce IL-6.
-
Statins
make radiation more effective at curing prostate cancer, study suggests -
Science Daily, 3/23/11 - "the men taking statins were
less like to relapse than other patients. At five years, 11 percent of men
taking statins saw their cancer return compared to 17 percent of patients not
taking the medication. At eight years, 17 percent of men on statins had a
relapse compared to 26 percent not taking the drug"
-
Apnea
may be cause for awakening and voiding for those with enlarged prostates -
Science Daily, 3/15/11 - "more than half (57.8 percent)
of patients with enlarged prostates may in fact have the sleep disorder, and
that the awakenings that patients ascribed to their need to urinate at night may
be actually caused by their sleep disorders"
-
Change
in PSA level does not predict prostate cancer - Science Daily, 2/24/11 -
"Dr. Vickers and colleagues found no important
association between PSA velocity and biopsy outcome after adjusting for risk
factors such as age, race, and PSA levels. PSA alone was a much better predictor
of biopsy outcome than PSA velocity ... We have previously published papers
determining that PSA naturally varies from month to month and have urged men
whose PSA suddenly rises to wait six weeks and repeat the test before agreeing
to a needle biopsy. This new study in a large population of men provides even
stronger evidence that using changes in PSA as a basis for recommendation for
biopsy leads to many more unnecessary biopsies and does not help to find the
more aggressive cancers that we want to find and treat"
-
Antagonists
of growth hormone-releasing hormone (GHRH) reduce prostate size in experimental
benign prostatic hyperplasia - Proc Natl Acad Sci U S A. 2011 Feb 14 -
"Reduction of prostate weights was observed after 6 wk
of treatment with GHRH antagonists: a 17.8% decrease with JMR-132 treatment; a
17.0% decline with MIA-313 treatment; and a 21.4% reduction with MIA-459
treatment (P < 0.05 for all). We quantified transcript levels of genes related
to growth factors, inflammatory cytokines, and signal transduction and
identified significant changes in the expression of more than 80 genes (P <
0.05). Significant reductions in protein levels of IL-1β, NF-κβ/p65, and
cyclooxygenase-2 (COX-2) also were observed after treatment with a GHRH
antagonist. We conclude that GHRH antagonists can lower prostate weight in
experimental BPH. This reduction is caused by the direct inhibitory effects of
GHRH antagonists exerted through prostatic GHRH receptors. This study sheds
light on the mechanism of action of GHRH antagonists in BPH and suggests that
GHRH antagonists should be considered for further development as therapy for
BPH"
-
Comparison
of Effects of Alpha Receptor Blockers on Endothelial Functions and Coagulation
Parameters in Patients with Benign Prostatic Hyperplasia - Urology. 2011 Jan
20 - "When coagulation tests were evaluated, there were
significant increases in bleeding and coagulation times in the groups using
doxazosin and terazosin. Doxazosin and terazosin lowered arterial blood pressure
significantly compared with other treatments. With regard to effects on
endothelial function, there were significant differences in flow-mediated
dilation rates of the brachial artery at 60 and 90 seconds before and during
treatment in the alfuzosin and terazosin groups ... Alpha receptor blockers can
decrease the risk of cardiovascular complications by both reducing platelet
aggregation and protecting endothelial functions in patients with prostatic
hyperplasia. The only drug with a favorable effect in all 4 areas of interest,
including BPH symptoms, blood pressure, platelet aggregation, and endothelial
functions, was terazosin"
-
Double
Espresso vs Prostate Cancer - Medscape, 12/17/10 -
"This wasn't a randomized trial. It was epidemiologic observational research.
What they did was they gave people a questionnaire about their coffee drinking
habits, and then they correlated that with hospital records on who got advanced
prostate cancer and who didn't. Of course, there's a big problem with doing that
type of research, which is that people who drink coffee may be different from
people who don't drink coffee in all sorts of ways other than their caffeine
consumption. Here's the number-one reason I don't actually believe the study.
What the investigators reported was a 60% decrease in your risk for advanced
prostate cancer if you drank coffee. Finasteride and dutasteride, these are
drugs that we know in randomized trials are effective for prostate cancer, and
we know that they have a mechanism of action that is pertinent to the prostate.
Those 2 drugs reduce the risk for cancer by about 25%. Nothing is going to
reduce the risk for advanced prostate cancer by 60%. I doubt if chemotherapy
would. This is just a guess, little indication that the results of the study are
due to bias ... There's another problem with these sorts of studies. Cancer
takes a long time to develop. In fact, in the case of prostate cancer, we know
that it takes 30 or more years between initiation of cancer and a clinical
diagnosis"
-
PSA test
better predicts cancer in men taking prostate-shrinking drug - Science
Daily, 12/16/10 - "Dutasteride lowers PSA levels by
about half within six months. But the researchers found that even a slight rise
in PSA levels among men taking the drug was a stronger indicator of prostate
cancer, particularly aggressive tumors that require early diagnosis and
treatment, than rising PSA levels in men who took a placebo ... dutasteride
reduced the risk of a prostate cancer diagnosis by 23 percent. Dutasteride
appears to keep tumors small or shrink them to the point that they are less
likely to be detected by a biopsy ... Over four years, PSA levels increased in
72 percent of men taking a placebo and only 29 percent of men taking
dutasteride, the data show" - See dutasteride at
OffshoreRx1.com.
-
Finger
length points to prostate cancer risk - Science Daily, 12/1/10 -
"men whose index finger is longer than their ring finger
were one third less likely to develop the disease than men with the opposite
finger length pattern"
-
Early
PSA Predicts Prostate Cancer Risk -- But Then What? - Medscape, 12/1/10 -
"The investigators went back and tested the blood
samples of these men to see what their PSA [prostate-specific antigen] levels
were up to 30 years before the diagnosis of prostate cancer was made. They found
that if the PSA was > 0.63 ng/mL, they had a significant chance of developing
cancer or advanced cancer many years in the future"
-
Ketoconazole May Help in Resistant Prostate Cancer - Medscape, 11/30/10 -
"Based on prostate-specific antigen levels, two patients
(5%) had a complete response, six (16%) had partial responses and 13 (35%) had
stable disease" - Note: Ketoconazole is used off-label to reduce
cortisol. I don't know if there is a connection.
-
Cholesterol-lowering drug shrinks enlarged prostates in hamster model -
Science Daily, 10/21/10 - "Ezetimibe reduced prostatic
enlargement in aged hamsters as effectively as finasteride and combining the two
drugs worked better than either one alone ... finasteride caused atrophy of the
hamster prostate while ezetimibe did not"
-
AMACR
polymorphisms, dietary intake of red meat and dairy and prostate cancer risk
- Prostate. 2010 Oct 13 - "Red meat consumption was
positively associated with PCa risk, and the association was stronger for more
aggressive disease (lowest vs. highest tertile OR = 1.55"
-
Non-Steroidal Anti-Inflammatory Drugs and Prostate Cancer Risk in the VITamins
And Lifestyle (VITAL) Cohort - Cancer Epidemiol Biomarkers Prev. 2010 Oct 8
- "NSAID use was not associated with prostate cancer
risk in the VITAL cohort.Impact: Our findings do not support the use of NSAIDs
for chemoprevention of prostate cancer"
-
Finasteride May Be Helpful for Benign Prostatic Hypertrophy - Medscape,
10/8/10 - "Finasteride improves long-term urinary
symptoms versus placebo, but is less effective than doxazosin," the study
authors write. "Long-term combination therapy with alpha blockers (doxazosin,
terazosin) improves symptoms significantly better than finasteride monotherapy.
Finasteride + doxazosin improves symptoms equally — and clinically — to
doxazosin alone. In comparison to doxazosin, finasteride + doxazosin appears to
improve urinary symptoms only in men with medium (25 to < 40 mL) or large
prostates (≥ 40 mL), but not in men with small prostates (25 mL)."
-
Common
prostate cancer treatment associated with bone decay - Science Daily,
10/8/10
-
Blood
test accurately predicts death from prostate cancer up to 25 years in advance
- Science Daily, 9/15/10 - "90 percent of deaths
occurred in men in the top 25 percent of PSA levels at age 60. The researchers
concluded that men with a PSA level above 2 ng/ml at age 60 should be considered
at increased risk of aggressive prostate cancer and should continue to be
screened regularly ... Men with a PSA level below 1 ng / ml had a 0.2 percent
chance of death from prostate cancer. The researchers concluded that men with
PSA levels in this range, which is about half of all men, should be considered
at low risk of prostate cancer death and may not need to be screened in the
future. The study also indicated that some men found to be at low risk may
actually have prostate cancer; however it is not likely to cause symptoms or
shorten their life by the age of 85"
-
Early
prostate cancer detection, screening: No benefit for men with low baseline PSA
value, study finds - Science Daily, 9/13/10 - "The
greatest benefits of early detection programs may be when men, aged 55-74 years,
are diagnosed and treated when their serum PSA is in the range 4.0-9.9 ng/ml or
10.0-19.9 ng/ml. Furthermore, following research efforts that recommend more
intensive PSA based screening by lowering the PSA cut-off may greatly increase
the number of men that need additional investigations and treatment, whilst
having little effect on the reduction of prostate cancer mortality"
-
Pioglitazone
attenuates prostatic enlargement in diet-induced insulin-resistant rats by
altering lipid distribution and hyperinsulinemia - Br J Pharmacol. 2010 Aug
19 - "Increased incidence of benign prostatic
hyperplasia among insulin-resistant individuals suggest a role for
hyperinsulinemia in prostatic enlargement ... High fat diet led to the
accumulation of fat in non-adipose tissues, insulin resistance, compensatory
hyperinsulinemia and prostatic enlargement in rats. Pioglitazone treatment
altered fat distribution, improved insulin-sensitivity and normalized lipid and
insulin level in rats on the high-fat diet. The improved metabolic parameters
led to decreased cellular proliferation and increased apoptosis in the prostate
gland. High-fat diet feeding and pioglitazone treatment did not change plasma
testosterone levels. However, significant prostatic atrophy was observed in
castrated, rats irrespective of dietary intervention" - Some doctors think I'm crazy but pioglitazone is one of the drugs I take for
anti-aging. See my Insulin and Aging page.
-
Laser
may reduce prostate surgery's sexual side effects - Science Daily, 8/5/10 -
"The precision of movement available through robotic
surgery is already helping reduce the risk of sexual side effects, and the early
evidence is that CO2 lasers will help us be even more accurate -- especially
when preserving the sensitive nerve areas necessary for sexual function and
urinary continence"
-
Statins
associated with lower cancer recurrence following prostatectomy - Science
Daily, 6/28/10 - "the data showed that overall, statin
use reduced the risk of biochemical recurrence by 30 percent ... Among men
taking statins equivalent to 20 mg of simvastatin a day, the risk of recurrence
was reduced 43 percent and among the men taking the equivalent of more than 20
mg of simvastatin a day, the risk of recurrence was reduced 50 percent. Men who
took a statin dose the equivalent of less than 20 mg of simvastatin daily saw no
benefit"
-
FDA
Approves Dutasteride/Tamsulosin Combo Pill for BPH - Medscape, 6/18/10 -
"daily use of the drug combination yielded significantly
greater relief of BPH symptoms compared with either 0.5 mg dutasteride or 0.4 mg
tamsulosin alone, as measured by point changes on the International Prostate
Symptom scale from baseline (mean Δ, −6.2 vs −4.9 and −4.3; P < .001 for both).
The difference was observed by month 9 and continued through month 24" -
See dutasteride at
OffshoreRx1.com.
-
Reduction of
Prostate-specific Antigen After Tamsulosin Treatment in Patients With Elevated
Prostate-specific Antigen and Lower Urinary Tract Symptoms Associated With Low
Incidence of Prostate Cancer at Biopsy - Urology. 2010 Jun 8 -
"A total of 80 patients completed the present study. The
mean patient age was 66.3 years, and the mean PSA level was 7.8 +/- 8.4 ng/mL at
baseline and 7.1 +/- 9.1 ng/mL after treatment (P < .001). A total of 29
patients (36.25%) were diagnosed with prostate cancer from the biopsy findings.
A significant increment in the PSA level was observed in patients with prostate
cancer (6.7 versus 7.9 ng/mL; P = .002). A significant decrease in the PSA level
was observed in patients with negative biopsy findings (6.9 versus 5.1 ng/mL, P
= .000). Of the 38 patients with a decrease in the PSA level, 1 (2.6%) was
diagnosed with prostate cancer and 37 (97.4%) with an benign prostatic
hyperplasia/prostatitis. Of the 42 patients with no change in the PSA level, 28
(66.7%) had prostate cancer and 14 (33.3%) had negative findings. A change in
PSA level after treatment gave a sensitivity of 96.6%, specificity of 72.5%, and
diagnostic accuracy of 81% for prostate cancer. CONCLUSIONS: Treatment with
tamsulosin seemed to reduce the PSA levels and identified patients at high risk
of prostate cancer"
-
Surgery
outperforms drug therapy in treatment of benign prostatic hyperplasia, research
finds - Science Daily, 5/29/10 - "Patients who
underwent transurethral resection of the prostate (TURP) had the greatest
decrease in both symptoms and incontinence compared to other treatment groups.
Pre-TURP the incontinence rate was 64.5 percent and post-TURP it was 41.9
percent"
-
Effect of
dutasteride, tamsulosin and the combination on patient-reported quality of life
and treatment satisfaction in men with moderate-to-severe benign prostatic
hyperplasia: 4-year data from the CombAT study - Int J Clin Pract. 2010 May
7 - "Subjects were randomised to receive 0.5 mg
dutasteride, 0.4 mg tamsulosin or the combination once daily for 4 years ... At
4 years, combination therapy resulted in significantly superior improvements
from baseline in BII and IPSS Q8 than either monotherapy; these benefits were
observed from 3 months onwards compared with dutasteride and from 9 months (BII)
or 12 months (IPSS Q8) onwards compared with tamsulosin. Also at 4 years, the
PPSM questionnaire showed that a significantly higher proportion of patients was
satisfied with, and would request treatment with, combination therapy compared
with either monotherapy. Conclusions: Combination therapy (dutasteride plus
tamsulosin) provides significantly superior improvements in patient-reported
quality of life and treatment satisfaction than either monotherapy at 4 years in
men with moderate-to-severe BPH symptoms" - See dutasteride at
OffshoreRx1.com.
-
The Effect
of Short-term Dutasteride Intake in Early-stage Prostate Cancer: Analysis of 148
Patients Who Underwent Three-dimensional Prostate Mapping Biopsy - Urology.
2010 May 14 - "transperineal three-dimensional mapping
(TP-3DM) biopsy ... We observed a 24.3% decrease in the proportion of upstaging
and/or upgrading of prostate cancer in men who received dutasteride at least 3
months before 3D prostate TP-3DM biopsy. Thus, the effect of dutasteride on
prostate cancer may have implications for its potential use as a secondary
chemoprevention agent" - See dutasteride at
OffshoreRx1.com.
-
Sex Hormones
and the Risk of Incident Prostate Cancer - Urology. 2010 May 6 -
"Serum testosterone, estradiol, estrone, and sex
hormone-binding globulin were assayed at baseline ... the mean age was 73 years.
Higher serum estrone was strongly related to an increased risk of prostate
cancer: compared with men in the lower quartile, the risk of prostate cancer
among those in the highest 3 quartiles (>24.9 pg/dL) was nearly 4-fold higher
(adjusted heart rate = 3.93, CI: 1.61-9.57). Other sex hormones were not
associated with the risk of prostate cancer" - The following results for
estrone are for women. I didn't find any results for men but see the
"For Aromatization (in males):" section on my letrozole page.
-
Letrozole
suppresses plasma estradiol and estrone sulphate more completely
than anastrozole in postmenopausal women with breast cancer - J
Clin Oncol. 2008 Apr 1;26(10):1671-6 -
"Letrozole reduces plasma E2 and E1S levels to a significantly
greater extent than anastrozole" - See
Femara (letrozole)at
OffshoreRX.
- Influence of
letrozole and anastrozole on total body aromatization and plasma estrogen
levels in postmenopausal breast cancer patients evaluated in a randomized,
cross-over study - J Clin Oncol. 2002 Feb 1;20(3):751-7 -
"estrone (E(1)), estradiol (E(2)), and estrone
sulfate (E(1)S) ... Treatment with anastrozole suppressed plasma levels of
E(1), E(2), and E(1)S by a mean of 81.0%, 84.9%, and 93.5%, respectively,
whereas treatment with letrozole caused a corresponding decrease of 84.3%,
87.8% and 98.0%, respectively. The suppression of E(1) and E(1)S was found
to be significantly better during treatment with letrozole compared with
anastrozole"
-
FDA
approves $93K prostate cancer vaccine - USAToday, 4/29/10 -
"The new vaccine, Provenge doesn't prevent cancer,
unlike the polio shot or recently approved vaccines that block infection with
viruses that cause most cervical tumors. Provenge, which will cost $93,000, also
doesn't cure cancer ... But studies show that the vaccine does help men with
advanced prostate cancer live four months longer than men given placebo shots"
-
Does a
man's estrogen level impact his risk of prostate cancer? - Science Daily,
4/19/10 - "The relative amounts of the 15 estrogens and
estrogen metabolites in the urine of prostate cancer cases were similar to that
of non-cancer patients with the exception of the estrogen metabolite 4-OHE1 ...
This particular estrogen metabolite appeared to be more abundant among men
diagnosed with prostate cancer"
-
Alfuzosin Improves Ejaculatory Dysfunction in Men With Probable BPH -
Medscape, 4/20/10 - "Alfuzosin (Uroxatral, Sanofi
Aventis), a uroselective alpha-1-adrenergic receptor blocker, ameliorates
ejaculatory dysfunction in sexually active men with lower urinary tract symptoms
(LUTS) suggestive of benign prostatic hypertrophy (BPH) ... Alfuzosin
significantly improved IPSS score (7.9 [–41%]; P < .0001) and nocturia (–0.9
[–18%]; P < .001) from baseline. Bother due to LUTS also significantly improved
(–1.5 [–28%]; P < .0001)"
-
Avodart May Lower Prostate Cancer Risk - WebMD, 3/31/10 -
"those who took the drug Avodart had a 23% lower
risk of being diagnosed with prostate cancer over four years of treatment,
compared to men who did not take the drug" - See Avodart (dutasteride) at
OffshoreRx1.com.
-
Combination therapy more effective for enlarged prostate - Science
Daily, 3/2/10 - "On the strengths of both
dutasteride and tamsulosin, participants reported fewer symptoms, and we
observed a 25 percent reduction in prostate volume ... subjects who received
the combination therapy also showed a 50 percent reduction of
prostate-specific antigen (PSA), a protein produced by both cancerous and
noncancerous prostate tissue ... Compared with tamsulosin alone, the
combination of drugs reduced the incidence of acute urinary retention by 67
percent and reduced the need for BPH-related surgery by 70 percent" -
See - See
dutasteride at OffshoreRx1.com.
-
Dutasteride Reduces Risk for Biopsy-Detectable Prostate Cancer in Men at
Increased Risk - Doctor's Guide, 12/1/09 -
"Compared with placebo, active treatment also showed significantly lower
risks for (respectively) HG-PIN (5.4% vs 3.5%; RRR, 34%; P = .0053), ASAP
(5.1% vs 3.6%; RRR, 28%; P = .0274), AUR (7.1% vs 1.4%; RRR, 80.4%; P <
.0001), BPH-related surgery (5.7% vs 1.4%; RRR 75.6%; P < .0001), and UTI
(9.6% vs 5.8%; RRR, 40.8%; P < .0001) ... Similarly, there were significant
reductions for mean prostate volume (18.7% increase vs 16.9% decrease; P <
.0001) and IPSS (+1.14 vs -0.6; P < .0001), and slightly fewer high-grade
tumours (Gleason score, 7-10) in the dutasteride group (7.5% vs 7.0%) ...
These benefits were accompanied by significantly more frequent
dutasteride-related adverse events (12% vs 19%; P < .0001), with dutasteride
treatment showing increased frequencies of decreased libido (2.8% vs 5.5%),
impotence (7.7% vs 10.9%), ejaculation disorders (0.5% vs 2.4%), and breast
disorders (1.9% vs 3.5%)" - See
Dutasteride (Avodart) 30 x 0.5mg capsules at International Antiaging
Systems or
.
-
Serum
Creatinine and Prostate Cancer Risk in a Prospective Study - Cancer
Epidemiol Biomarkers Prev. 2009 Sep 15 - "Cases had
significantly higher prediagnostic serum creatinine concentrations compared
with controls (medians of 1.13 versus 1.10 mg/dL, respectively; P = 0.004).
Serum creatinine was associated with a significantly greater risk of
prostate cancer (multivariate odds ratio, 2.23; 95% confidence interval,
1.33-3.75 for highest versus lowest quartile), with a significant trend (P
trend = 0.0008)"
-
Outcomes Appear To Be Improving For Conservative Management Of Localized
Prostate Cancer - Science Daily, 9/15/09
-
Survival Improves for Prostate Cancer - WebMD, 9/15/09 -
"The death rate from prostate cancer within 10 years
of diagnosis among men who did not have surgery or radiation was 2% to 6% in
the 1990s ... This compares to disease-specific death rates of 15% to 23% in
similarly aged men with similar disease characteristics who chose not have
these treatments in the pre-PSA era ... PSA screening saves few lives and
has led to unnecessary treatment for millions of men. Findings from several
recent studies appear to have bolstered the claim"
-
PSA Test: More Harm Than Good? - WebMD, 8/31/09 -
"For every man who avoids a prostate cancer death
due to PSA screening, about 50 men have to be treated unnecessarily -- and a
third of these men will have serious problems with treatment"
-
Obesity Increases Risk Of Prostate Cancer Recurrence For Both Blacks And
Whites - Science Daily, 8/17/09 - "We found that
higher BMI was associated with significantly increased risk of cancer
recurrence for both blacks and whites ... Obesity is associated with more
estrogen and less testosterone, and it may be that lower testosterone
promotes more aggressive tumors as recent studies have suggested ... In
addition, Jayachandran says alteration in the production of other hormones,
like insulin, insulin-like growth factor or leptin, which occur in obese
men, may also be involved in the development of more aggressive tumors"
-
Case
For Preventive Prostate Cancer Treatment Bolstered - Science Daily,
7/19/09 - "finasteride ... Now new research from
Stanford University School of Medicine appears to show that the drug did not
cause those more aggressive forms of prostate cancer but simply made them
easier to diagnose"
-
Dramatic Outcomes In Prostate Cancer Study - Science Daily, 6/19/09 -
"The patients first received a type of hormone
therapy called androgen ablation, which removes testosterone and usually
causes some initial reduction in tumor size. Researchers then introduced a
single dose of ipilimumab, an antibody, which builds on the anti-tumor
action of the hormone and causes a much larger immune response, resulting in
massive death of the tumor cells. Both men experienced consistent drops in
their prostate specific antigen (PSA) counts over the following weeks until
both were deemed eligible for surgery. Then, during surgery, came a greater
surprise ... The tumors had shrunk dramatically"
-
Statins Alter Prostate Cancer Patients' PSA Levels - Science Daily,
4/28/09 - "We found that PSA levels are actually
significantly lower in prostate cancer patients on statins versus prostate
cancer patients not on statins"
-
Major Statin Study Reveals Several Important Findings For Reducing Prostate
Cancer And Disease - Science Daily, 4/26/09 -
"non-statin users were three times more likely to develop prostate cancer,
suggesting statin use may prevent development of prostate cancer ...
Overall, statin use was not significantly associated with a decreased risk
of developing ED. However, statins were associated with a decreased risk of
ED among older men (>60 years). Men in this age category who used statins
were less likely to develop ED, compared to older men who did not use
statins. Additionally, men who took statins for a longer time were more
protected against developing ED. For example, men who took statins for
nearly nine years or more were 64 percent less likely to develop ED, while
men who took statins for less than three years had about the same risk of
developing ED. compared to men who did not take statins" - See
atorvastatin at
OffshoreRx1.com.
-
Statins May Exert Influence On Prostate Cancer Growth By Reducing
Inflammation - Science Daily, 4/26/09 - "men who
were on statins had a 72 percent reduction in risk for tumor inflammation,
and we believe this might play a role in the connection between prostate
cancer and statin use"
-
Tadalafil May Effectively Treat Symptoms Of BPH-LUTS In Addition To Erectile
Dysfunction - Science Daily, 4/26/09 - "After 12
weeks of treatment, the men taking tadalafil experienced improved detrusor
pressure at urinary flow rate, peak flow rate (Qmax), bladder capacity,
post-void residual volume and bladder voiding efficiency. Relative symptom
improvement in the IPSS also was significantly better in the tadalafil
group"
-
The
utility of 5-alpha reductase inhibitors in the prevention and diagnosis of
prostate cancer - Curr Opin Urol. 2009 Mar 21 -
"finasteride reduced the risk of prostate cancer by approximately 25% in
comparison with placebo"
-
Statins Cut Deaths From Prostate Cancer - WebMD, 2/26/09 -
"men taking statins were 63% less likely to die from
the disease than men not taking statins ... The high-potency statins were
about 2.5 times more effective at preventing prostate cancer death than the
weak statins"
-
Calculator for Future Risk for Prostate Cancer - Medscape, 2/26/09 -
"The risk over 4 years was 5.1% at an average PSA of
1.5 ng/mL. Men with a PSA of that amount or more were at an above-average
risk of developing prostate cancer in the next 4 years ... those men were 7
times more likely to develop the cancer during that period"
-
Drug Reduces Risk of Prostate Cancer in Middle-Aged Men, Medical Groups Say
- washingtonpost.com, 2/24/09 - "taking finasteride,
a drug that is already widely used to treat male pattern baldness and
urological problems, can reduce the risk of developing prostate cancer by as
much as 25 percent"
-
Lowering Your Cholesterol May Decrease Your Risk Of Cancer - Science
Daily, 2/23/09 - "High cholesterol not only leads to
atherosclerosis and heart disease, but may also contribute to cancer growth
and progression. Prostate cancer is the most common non-skin cancer in the
United States, affecting approximately 1 in 6 men. Prostate tumors
accumulate high levels of cholesterol, and tumor incidence correlates with
eating a high fat/high cholesterol diet "Western" diet. In addition,
prostate tumor progression has been linked to serum cholesterol levels"
-
Frequent Sex And Masturbation In 20s And 30s Linked To Higher Prostate
Cancer, But Risks Diminish With Age - Science Daily, 1/26/09 -
"Men who are very sexually active in their twenties
and thirties are more likely to develop prostate cancer, especially if they
masturbate frequently ... frequent sexual activity in a man’s forties
appears to have little effect and even small levels of activity in a man’s
fifties could offer protection from the disease"
-
Treatments After Prostate Surgery - Science Daily, 1/22/09
-
Why
Prostate Cancer Patients Fail Hormone Deprivation Therapy - Science Daily,
12/31/08 - "For most patients, this hormone deprivation
therapy causes tumors to shrink, sometimes dramatically. However, it's never a
cure—tumors eventually regrow into a stronger ... The results suggest that
hormone therapy might encourage prostate cancer cells to overproduce the AR-V7
receptors over time, leading them to survive and grow aggressively even without
androgens"
-
Sexuality
and the management of BPH with alfuzosin (SAMBA) trial - Int J Impot Res.
2008 Dec 11 - "Alfuzosin for the treatment of patients
with BPH is effective in improving sexual function, as well as lower urinary
tract symptoms (LUTSs) and quality of life, and is well tolerated"
-
Statins Lower Prostate Cancer Marker - WebMD, 10/28/08 -
"On average, PSA declined by 4.1% after starting a
statin ... a bigger decrease was seen in men who started out with the highest
PSA levels (2.5 ng/mL or more) -- but only among those who had the greatest
decrease in cholesterol. These men had a 17.4% drop in PSA"
-
Correlation
between simultaneous PSA and serum testosterone concentrations among eugonadal,
untreated hypogonadal and hypogonadal men receiving testosterone replacement
therapy - Int J Impot Res. 2008 Oct 9 -
"testosterone replacement therapy (TRT) ... does not appear to significantly
influence serum PSA expression and no significant correlation was identified
between PSA and serum testosterone among eugonadal, untreated hypogonadal and
hypogonadal men receiving TRT"
-
FDA Approves Silodosin for the Treatment of Benign Prostatic Hyperplasia -
Doctor's Guide, 10/9/08 - "Results from both trials
showed that silodosin 8 mg QD for
12 weeks resulted in significant and rapid relief of BPH symptoms, compared with
placebo, as measured by the International Prostate Symptom Score (IPSS). IPSS
includes irritative and obstructive symptoms"
-
Meat 'ups prostate cancer risk' - BBC News, 10/7/08 -
"Such a diet raises levels of a hormone called Insulin-like Growth Factor-1
(IGF-1) which promotes cell growth ... men with high blood levels of IGF-1 were
up to 40% more likely to develop prostate cancer than those with low levels ...
levels could be up to 15% higher in people who ate a lot of meat and dairy
products"
-
NSAIDs May Cut Prostate Cancer Markers - WebMD, 9/8/08 -
"Men who reported using NSAIDs nearly every day had PSA
levels that were about 10% lower than men who reported no current NSAID use"
-
Hormone Therapy May Speed Prostate Cancer - WebMD, 8/28/08 -
"in different types of prostate cancer cells, androgens
actually inhibit prostate cancer. When these tumor cells don't get androgens,
they become more aggressive and more invasive"
-
Prostate Cancer Therapy: Mental Impact? - WebMD, 7/29/08 -
"ADT stands for "androgen-deprivation therapy" and is
the standard type of treatment for prostate cancer that has spread to the bones
or other organs ... there is a "strong argument" to be made that the hormone
therapy is linked to "subtle but significant" cognitive declines in men with
advanced prostate cancer"
-
Testosterone therapy in hypogonadal men and potential prostate cancer risk: a
systematic review - Int J Impot Res. 2008 Jul 17 -
"Of studies that met inclusion criteria, none demonstrated that testosterone
therapy for hypogonadism increased prostate cancer risk or increased Gleason
grade of cancer detected in treated vs untreated men"
-
Prostate
Cancer Vaccines More Effective With Hormone Therapy - Science Daily, 7/10/08
-
Prostate Cancer Hormone Therapy: No Survival Benefit in Older Men - WebMD,
7/8/08 - "In the U.S., older men often opt for
stand-alone hormone therapy, even though there's no proof that it really helps.
Hormone therapy's most obvious side effect is sexual dysfunction. Of greater
concern are several recent studies linking androgen deprivation therapies to
diabetes, heart disease, bone fractures, and reduced muscle mass ... Now a new
study strongly suggests that hormone therapy offers older men no benefit to
justify these serious risks" - [Science
Daily]
-
Finasteride and High-Grade Prostate Cancer - Medscape, 6/19/08 -
"A new analysis from the national Prostate Cancer
Prevention Trial (PCPT) shows that finasteride does not increase the risk for
high-grade prostate cancer, as earlier findings appeared to indicate"
-
Proscar Lowers Prostate Cancer Risk in All Men - Medscape, 6/13/08 -
"Finasteride (Proscar) reduces the risk of prostate
cancer regardless of a patient's risk level for the malignancy ... In the
Prostate Cancer Prevention Trial, finasteride treatment was associated with a
25% reduction in the risk of prostate cancer"
-
Estrogen
Helps Drive Distinct, Aggressive Form Of Prostate Cancer - Science Daily,
5/27/08 - "Now, we show for the first time that this
natural estrogen can stimulate the production of the cancer-linked TMPRSS2-ERG
transcript, via the estrogen receptor (ER)-alpha and ER-beta ... We now believe
that agents that dampen estrogen activity (ER-beta antagonists) could inhibit
fusion-positive prostate cancers" - That raises the question whether
aromatase inhibitors might help prevent
prostate cancer. I've always felt they do and have been taking a quarter tablet
of letrozole every other
day.
-
Finasteride May Help Preventing Prostate Cancer, Study Shows - Science
Daily, 5/18/08 - "in addition to a 25 to 30 percent
reduction in prostate cancer development overall in men taking finasteride,
there was no evidence that the drug increased the rate of aggressive tumors and
likey decreased their rate by 27 percent" - See finasteride or
dutasteride at
OffshoreRx1.com.
I feel that dutasteride is
better and have been taking that for prostate cancer prevention and hair loss.
See:
-
Diet And
Medications May Assist Prevention Of Prostate Cancer - Science Daily,
9/24/07 - "dutasteride, has reduced by 50 percent the
number of cancerous biopsies among men with benign prostatic hypertrophy ... In
one study of selenium, the incidence of prostate cancer was reduced by 49
percent over ten years ... Data already suggests novel uses of statins, commonly
prescribed cholesterol-lowering agents, and insulin modulating drugs, such as
metformin or the glitazones"
-
Treatment Found To Reverse Hair Loss - Science Daily, 6/11/07 -
"one of each pair of twins was given 0.5 mg/day of
the medication, the other receiving a placebo ... After both 6 and 12-month
intervals, hair loss was found to not only have been halted in twins using
dutasteride, but hair growth was actively improved"
-
The importance of dual 5alpha-reductase inhibition in the treatment of male
pattern hair loss: results of a randomized placebo-controlled study of
dutasteride versus finasteride - J Am Acad Dermatol. 2006
Dec;55(6):1014-23 - "Dutasteride increased target
area hair count versus placebo in a dose-dependent fashion and dutasteride
2.5 mg was superior to finasteride at 12 and 24 weeks"
-
Low
Cholesterol Leads To Lower PSA, Lower Prostate Cancer Risk, Study Suggests -
Science Daily, 5/15/08 - "PSA levels were reduced after
starting statin medications and that this decline was proportional to the
decline in LDL cholesterol"
-
Prostate
Cancer Increases The Risk Of Bone Fracture, Study Shows -- Science Daily,
5/14/08
-
Diet
High In Saturated Fat Contributes To Prostate Cancer Treatment Failure, Study
Suggests - Science Daily, 5/8/08 - "Patients on a
HSF diets were significantly more likely to have a PSA failure and had
significantly shorter PSA-failure free survival than men on a LSF diet (26.6 vs.
44.7 months, respectively). At 5 years post radical prostatectomy, 65% of
patients who consumed HSF diets had no evidence of prostate cancer compared to
80% of men who ate a LSF diet"
-
Does
the level of prostate cancer risk affect cancer prevention with finasteride?
- Urology. 2008 May;71(5):854-7 - "Finasteride
significantly reduced prostate cancer risk for all risk quintiles. For quintiles
1 through 5, odds ratios were 0.72, 0.52, 0.64, 0.66, and 0.71, respectively"
- See finasteride at
OffshoreRx1.com.
-
Prostate Cancer Can Be Halted With Anti-inflammatory And Statin Used In
Tandem, Study Suggests - Science Daily, 4/14/08 -
"A combination of low doses of Lipitor and Celebrex
had a more potent inhibiting effect on the formation of later stage tumors
than a higher dose of either agent alone ... The results from our study
indicate that a combination of Lipitor and Celebrex may be an effective
strategy for the prevention of prostate cancer progression from the first to
the second stage"
-
Overweight And Obese Men Have Lower PSA Values, Even Before They Get
Prostate Cancer - Science Daily, 2/19/08 -
"mildly obese men's PSA scores were fourteen percent lower than
normal-weight men, and moderately and severely obese men had 29 percent
lower PSA values ... Doctors have proposed that overweight and obese men
have lower PSA scores because their bodies have a greater volume of blood"
-
Prostate Cancer Treatment Can Be Risky - WebMD, 2/18/08 -
"men who got ADT were 17% more likely to die than
those who opted for close observation ... It's possible that the men who
received ADT got the treatment because of rising PSA levels, indicating
worse disease ... But it's also possible that hormone therapy, which has
been associated with heart disease, osteoporosis, and other health problems,
could have compromised survival"
-
Drug Combo May Fight Prostate Cancer - WebMD, 2/18/08 -
"A combination of Avastin and thalidomide -- both of
which cut off the growth of new blood vessels that feed tumors, but in
different ways -- appears to pack a more potent punch than Avastin alone"
-
Statins, NSAIDs vs. Prostate Cancer - WebMD, 2/18/08 -
"Men with prostate cancer who take
cholesterol-lowering statin drugs or anti-inflammatory drugs live longer
than those who don't take the drugs ... men who reported ever taking statins
were 41% to 65% less likely to die during the course of the study than men
who didn't. Men who took NSAIDs were 53% to 61% less likely to die than
those who didn't"
-
A
prospective study of trans-Fatty Acid levels in blood and risk of prostate
cancer - Cancer Epidemiol Biomarkers Prev. 2008 Jan;17(1):95-101 -
"The relative risks (95% confidence intervals; P
trend) comparing top with bottom quintile trans-fatty acid levels were 2.16
(1.12-4.17; 0.11) for 18:1n-9t, 1.97 (1.03-3.75; 0.01) for total 18:2t, and
2.21 (1.14-4.29; 0.06) for total trans-fatty acids"
-
Screening for Prostate Cancer in U.S. Men ACPM Position Statement on
Preventive Practice - Am J Prev Med. 2008 Feb;34(2):164-70 -
"digital rectal examination (DRE) ...
prostate-specific antigen ... rials. There is currently no convincing
evidence that early screening, detection, and treatment improves mortal ...
The American College of Preventive Medicine concludes that there is
insufficient evidence to recommend routine population screening with DRE or
PSA"
-
Sex
Hormones Unrelated To Prostate Cancer Risk, Report Shows - Science
Daily, 1/30/08 - "collected the original data from
18 studies and analyzed it to determine the relationship between blood
levels of sex hormones and prostate cancer. The pooled data included 3,886
men with prostate cancer and 6,438 controls ... The researchers found no
association between prostate cancer risk and blood levels of different forms
of testosterone or estrogen"
-
Androgen-Deprivation Therapy Linked to Diabetes - Medscape, 1/22/08 -
"After controlling for other factors, the estimated
relative risk of incident diabetes associated with ADT was a significant
1.36"
-
Pros, Cons Of Drug Proven To Prevent Prostate Cancer Should Be Considered,
Researchers Recommend - Science Daily, 1/21/08 - "Finasteride
is currently the only drug that has been shown to prevent prostate cancer in
a large in addition to preventing prostate cancer, finasteride also reduces
urinary-tract symptoms associated with benign prostatic hyperplasia. It also
decreased sexual desire and caused impotence in 5 percent of the trial
participants ... randomized trial but is used for this purpose in very few
men" - See finasteride at
OffshoreRx1.com.
-
Fathers Get 16% More Prostate Cancer - WebMD, 1/7/08 -
"When a man fathers his first child, his lifetime risk
of prostate cancer goes up 16% ... Nobody has any idea why this might be so,
but the finding, based on 51.6 million man-years of data, is as certain as
any statistical fact can be" - Maybe it is stress. Stress increases
cortisol which increases blood sugar and insulin. That's my best guess. -
Ben
-
Aspirin Limits Prostate Cancer Therapy - WebMD, 12/26/07 -
"Abnormal liver-function tests forced some of the
men to quit Eulexin treatment before they could finish the six-month study.
This happened to 37% of men taking aspirin, but only to 16% of the men not
taking aspirin"
-
Statin Use Tied to Fewer Relapses in Prostate Cancer - oncologystat.com,
11/26/07 - "Men who happened to be on statins when
given radiotherapy for prostate cancer were significantly more likely to be
disease free 10 years later"
-
Obesity Affects Prostate Cancer Test - WebMD, 11/20/07 -
"Being a big guy, you have enormous blood volume, so
PSA is diluted ... For example, a PSA score of 4.1 in an obese man would be
diluted down to a 3.3"
-
Obesity And Overweight Linked To Higher Prostate Cancer Mortality -
Science Daily, 11/12/07 - "Compared to men with
normal BMI (BMI<25), men with BMI between 25 and 30 were more than 1.5 times
more likely to die from their cancer"
-
Prostate Cancer Risk with Positive Family History, Normal Prostate
Examination Findings, and PSA Less Than 4.0 ng/mL - Urology. 2007
Oct;70(4):748-52 - "The PSA values were
significantly greater statistically in the men with prostate cancer (median
2.1 ng/mL) than in the men without prostate cancer (median 1.2 ng/mL"
-
Relationship between serum testosterone and measures of benign prostatic
hyperplasia in aging men - Urology. 2007 Oct;70(4):677-80 -
"the serum testosterone levels in aging men did not
correlate with the measures of BPH, including prostate volume and IPSS,
regardless of whether total, free, or bioavailable testosterone was used.
Age correlated with the measures of BPH, especially prostate volume"
-
Drug
Slows Prostate Tumor Growth By Keeping Vitamin A Active - Science Daily,
11/7/07 - "A novel compound that blocks the
breakdown of retinoic acid, derived from vitamin A, is a surprisingly
effective and "promiscuous" agent in treating animal models of human
prostate cancer ... Daily injections of the agent VN/14-1 resulted in up to
a 50 percent decrease in tumor volume in mice implanted with human prostate
cancer cells ... Vitamin A, when converted by the body into retinoic acid,
is known to be involved in maintaining the normal growth of cells, and other
research has shown that prostate cancer cells contain five to eight times
less retinoic acid than normal prostate cells"
-
Statins May Fight Prostate Cancer - WebMD, 10/29/07 -
"Overall, 76% of men who took statins were alive and
without cancer 10 years after treatment vs. 66% of those who didn’t"
-
Can
Cholesterol-lowering Medicine Make Radiation More Effective At Curing
Prostate Cancer? - Science Daily, 10/29/07 -
"Patients with prostate cancer who receive high-dose radiation treatment and
also take statin drugs commonly used to lower cholesterol have a 10 percent
higher chance of being cured of their cancer at 10 years after diagnosis (76
percent), compared to those who don't take these medications (66 percent)"
-
Prostate Cancer Therapy Linked To Increased Risk Of Heart Disease Death
- Science Daily, 10/9/07 - "Among men 65 years and
older who had their prostates removed, the 5-year incidence of heart
disease-related death was 5.5 percent for those receiving androgen
deprivation, and 2 percent among those who did not. For men younger than 65
years, the rates were also increased, 3.6 percent and 1.2 percent
respectively"
-
Popular Prostate Cancer Treatment May Encourage Spread Of Cancer, Study
Suggests - Science Daily, 10/1/07 - "A popular
prostate cancer treatment called androgen deprivation therapy may encourage
prostate cancer cells to produce a protein that makes them more likely to
spread throughout the body"
-
Risk of new-onset diabetes mellitus and worsening glycaemic variables for
established diabetes in men undergoing androgen-deprivation therapy for
prostate cancer - BJU Int. 2007 Sep 14 - "new-onset
diabetes mellitus (NODM) ... Receipt of vitamin D had a protective effect
(odds ratio 5.75 ... Patients receiving ADT for prostate cancer with or with
no history of DM should have routine surveillance of glycaemic control,
particularly when their BMI is >/= 30 kg/m(2), with appropriate preventive
and treatment measures"
-
Drug
That Reduces Prostate Size And Cancer Risk Also Improves Early Detection
- Science Daily, 9/11/07 - "Men now have another
good reason to consider taking finasteride, a well-known generic drug that
shrinks an enlarged prostate and reduces the risk of getting prostate cancer
by 25 percent ... finasteride also raises the odds that physicians will find
fast-growing prostate cancers early, when they are most easily treatable"
-
Effects of alfuzosin 10 mg once daily on sexual function in men treated for
symptomatic benign prostatic hyperplasia - Int J Impot Res. 2007 Aug 23
- "After 1 month of treatment, alfuzosin 10 mg q.d.
significantly improved erectile function in men with lower urinary tract
symptoms/ benign prostatic hypertrophy and had no adverse effect on
ejaculatory function"
-
Prostate Cancer Prediction Not Skewed by Finasteride - Medscape, 7/30/07
- "with the exception of the approximate reduction
of PSA by half with finasteride, the impact of these risk factors is similar
to men who do not receive finasteride"
-
Serum androgens and prostate cancer among 643 cases and 643 controls in the
European Prospective Investigation into Cancer and Nutrition - Int J
Cancer. 2007 May 18 - "After adjustment for
potential confounders, there was no significant association with overall
risk for prostate cancer for serum total or free testosterone concentrations
(highest versus the lowest thirds: OR, 1.02; 95% CI, 0.73-1.41 and OR, 1.07,
95% CI, 0.74-1.55, respectively) or for other androgens or SHBG"
-
ED Drugs May Treat Urinary Problems - WebMD, 5/23/07 -
"Sexual performance in men seems to decline as their
prostate enlargement becomes more severe, experts have begun to notice ... A
once-a-day dose of Cialis helped men with erectile dysfunction and moderate
to severe urinary tract symptoms due to an enlarged prostate improve sexual
functioning"
-
Statins May Cut Prostate Cancer Deaths - WebMD, 5/21/07 -
"the greater the men's cholesterol decrease, the
more their PSA levels dropped"
-
Statin Use Linked With Decreased Prostate Cancer Mortality Rates; Lower PSA
Levels - Science Daily, 5/20/07 -
"PSA levels declined by 1.1 percent for every 10
mg/dl decrease in LDL ... Reviewing PSA levels among statin users screened
in the Finnish Prostate Cancer Screening Trial, researchers from Helsinki
found a decrease in prostate cancer incidence in this group ... A
significant decrease was found in the incidence of T3 cancers ...
Non-statin, lipid-lowering drugs were not associated with incidence, stage
or grade"
-
Obesity and benign prostatic enlargement: a large observational study in
China - Urology. 2007 Apr;69(4):680-4 -
"Obese Chinese men are at increased risk of an
enlarged prostate compared with nonobese Chinese men"
-
Statins Take on Advanced Prostate Cancer - Physician's Weekly, 4/2/07 -
"The use of statin drugs “was not associated with
risk of prostate cancer overall but was associated with a reduced risk of
advanced (especially metastatic or fatal) prostate cancer.” ... The relative
risk was 0.60 for less than five years of statin use and for 0.26 for five
or more years of use"
-
Statins Protect Against Prostate Cancer - Doctor's Guide, 3/27/07 -
"Overall, prostate cancer incidence was
significantly lower for statin users than non-users (4.0% vs 8.0%,
respectively). A significant dose-response relationship was seen for the
total cumulative quantity of statin users and incidence of prostate cancer"
-
Age-Specific PSA Cut-Offs Avoid Unnecessary Prostate Biopsies in Older Men
- Medscape, 3/27/07 - "When the data was grouped
according to 4 specific age categories, mean PSA levels for the control men
increased significantly with increased age category: for men younger than 50
years, it was 1.2 ng/mL; 50 to 59 years, 1.8 ng/mL; 60 to 69 years, 3.1
ng/mL; and 70 years or older, 8.9 ng/mL"
-
Inflammation May Play Role In Metastasis Of Prostate Cancer - Science
Daily, 3/18/07 - "inflammation associated with the
progression of tumors actually plays a key role in the metastasis of
prostate cancer"
-
Heart Disease Deaths Increased in the Presence of Androgen Deprivation
Therapy - Doctor's Guide, 2/27/07 -
"risk was 3% over 5 years compared with 0.9% for men
not taking androgen deprivation therapy"
-
Statins vs. Advanced Prostate Cancer - WebMD, 12/19/06 -
"Overall, statin use didn't appear to sway the men's
chances of being diagnosed with prostate cancer ... Men taking statin drugs
were about half as likely to have advanced prostate cancer as those not
taking statins"
-
Two
Markers Strongly Linked To Prostate Cancer Incidence And Mortality Almost A
Decade Prior To Diagnosis - Science Daily, 11/14/06 -
"Increased levels of two markers of inflammation,
interleukin-6 (IL-6) and C-reactive protein (CRP), are significantly
associated with prostate cancer incidence and mortality almost a decade
prior to diagnosis"
-
Excess Mortality Seen Among Prostate Cancer Patients on Long Term Androgen
Deprivation Therapy - Doctor's Guide, 11/9/06 -
"More than 6 months' treatment with these androgen
deprivation drugs appears to double the risk of mortality in these patients"
-
Newer Prostate Treatment Has Advantage - WebMD, 11/7/06 -
"A computerized program allows doctors to adjust
both the strength and the intensity of the beams, so that more radiation is
blasted at the tumor and less at critical surrounding organs such as the
bladder and rectum"
-
Testosterone therapy for men at risk for or with history of prostate cancer
- Curr Treat Options Oncol. 2006 Sep;7(5):363-9 -
"Although still controversial, there appears to be
little reason to withhold TRT from men with favorable outcomes after
definitive treatment for PCa"
-
A New Way to Prevent BPH? - Physician's Weekly, 10/16/06 -
"NSAID use was inversely associated with the onset
of moderate-to-severe urinary symptoms, low maximum flow rate, and elevated
prostate-specific antigen levels"
-
Focal Cryoablation Effective in Destroying Prostate Cancer, Preserving
Potency, Continence - Doctor's Guide, 9/28/06 -
"At a mean follow-up of 70 months, 92.8% (26 of 28)
remained biochemically disease-free and 96% (24 of 25) had no evidence of
cancer on post-treatment biopsy ... Potency was completely maintained in
41.8% (13 of 27) of the patients and 40.7% of the others (11 of 27) were
potent with erectile dysfunction drugs, for a total potency preservation
rate of 88.9%. The patients experienced no other complications, such as
incontinence"
-
Finasteride as a Chemopreventive Agent in Prostate Cancer - Medscape,
9/15/06 - "Prostate cancer was detected in 803 of
4,368 men (18.4%) taking finasteride as opposed to 1,147 of the 4,692 men
(24.4%) in the placebo group (P <0.001). This was a 24.8% relative risk
reduction in prevalence of prostate cancer during the trial ,,, The PCPT has
shown finasteride to be an effective chemopreventive agent in low-grade
prostate cancer"
-
Testosterone Replacement Therapy and Prostate Cancer - Medscape, 7/19/06
-
"there is currently no evidence that testosterone
administration can initiate or promote a de novo or pre-existing prostatic
malignancy in hypogonadal men.[40] In fact, there are strong indications
that normal testosterone levels play a protective role in the natural
history of prostate cancer"
-
Identifying Risk Factors for BPH - Physician's Weekly, 6/12/06 -
"Obesity, elevated fasting plasma glucose
concentration, and diabetes appear to be risk factors for benign prostatic
hyperplasia (BPH)"
-
Early Estrogen Exposure Leads To Later Prostate Cancer Risk - Science
Daily, 6/1/06 - "exposure to low doses of
environmental estrogens during development of the prostate gland in the male
fetus may result in a predisposition to prostate cancer later in life"
-
Obesity and Diabetes Increase Risk for Benign Prostatic Hyperplasia -
Doctor's Guide, 5/29/06 - "The age-adjusted odds
ratio for prostate enlargement in overweight men was 1.41, in obese men, it
was 1.27, and in severely obese men, it was 3.52 ... men with elevated
fasting plasma glucose levels (>110 mg/dL) were 3 times more likely to have
prostate enlargement"
-
Should Older Men Be Screened For Prostate Cancer? - Science Daily,
5/4/06 - "While this form of cancer can be fatal, it
often progresses so slowly that men are more likely to die from some other
disease"
-
Hypogonadism May Result After Prostatic Disease - Doctor's Guide, 5/1/06
- "men with prostatic diseases should be evaluated
for hypogonadism"
-
Elevated Plasma
Glucose, Diabetes, Obesity May Increase Risk for BPH - Medscape, 4/20/06
- "Men with elevated fasting glucose (> 110 mg/dL)
were more likely to have an enlarged prostate than men with normal fasting
glucose (</= 110 mg/dL ... Both elevated fasting glucose and diabetes were
associated with high-moderate to severe lower urinary tract symptoms"
-
New
Research Finds Direct Link Between High Cholesterol And Prostate Cancer
- Science Daily, 4/12/06 - "men with prostate cancer
were around 50% more likely to have had high cholesterol levels[2] than our
non-prostate cancer controls. The association was somewhat stronger for men
whose high cholesterol levels had been diagnosed before they were 50 and for
men over 65, where there was an 80% greater likelihood of high cholesterol
levels"
-
Insulin Sensitivity During Combined Androgen Blockade for Prostate Cancer
- J Clin Endocrinol Metab. 2006 Jan 24 -
"Short-term treatment with leuprolide and
bicalutamide significantly increased fat mass and decreased insulin
sensitivity in men with prostate cancer. These observations suggest that
gonadotropin-releasing hormone agonists may increase the risk of diabetes
mellitus and cardiovascular disease in older men"
- Study questions prostate
cancer screening - MSNBC, 1/9/06 -
"for some men, detecting prostate cancer early
through screening can do more harm than good ... In addition, the PSA tests
can yield ambiguous results. Most men who undergo a biopsy because they have
elevated PSA levels do not have prostate cancer. And some men with low PSA
levels do have cancer"
-
Yearly Prostate Cancer Tests May Save Lives - WebMD, 10/19/05 -
"men who have yearly screening are three times less
likely to die from prostate cancer than men who don't have the annual tests"
-
Obesity Is Risk Factor For Aggressive Prostate Cancer - Science Daily,
5/23/05 - "Obesity appears to increase the risk of
prostate cancer, particularly aggressive disease, and may make it harder to
find ... fat makes estrogen-like compounds, which lowers circulating levels
of prostate specific antigen ... Hormone changes observed with obesity also
cause decreased levels of the male hormone testosterone"
-
Presence Of High-risk Prostate Cancer Can Be Predicted Without A Biopsy, New
Study Says - Science Daily, 5/22/05
-
Statin Use Linked to 51% Reduction in Breast Cancer - Medscape, 5/20/05
-
"The beneficial effect is seen in more than four
years of statin use ... In both the prostate and lung cancer studies, there
was a 48% to 54% risk reduction in cancer associated with statin use"
- See Zocor at
SuperSaverMeds.com.
-
Drug
Combos Show Success For Treating Prostate Cancer - CBS 2 Chicago,
5/19/05 - "Robert's study coupled a low dose of the
drug taxotere with a low dose helper drug called dexamethasone"
-
Dutasteride Allows for Less Invasive Prostate Biopsies - Doctor's Guide,
5/19/05
-
Study Finds Prostate Cancer In 25% Of High-risk Men With 'Normal' PSA Levels
- Science Daily, 5/19/05 - "Men at high risk of
developing prostate cancer should undergo aggressive screening for the
disease ... 25 percent were diagnosed with the disease despite having a low
PSA"
- cholesterol-lowering drugs, those who did take them had nearly one-half the
risk of developing advanced prostate cancer. Risk decreased with increasing
duration of use ... looked at 450 men and women with early stage
non-small-cell lung cancer"
-
High
Cholesterol Levels Accelerate Growth Of Prostate Cancer - Science Daily,
3/27/05 - "The researchers also present evidence
that cholesterol-lowering ''statin'' drugs, now widely used in
cardiovascular disease, may inhibit cancer growth ... Increased cholesterol
levels didn't trigger new cancers in the mice, but six weeks after tumor
cells were injected, the incidence of tumors was more than doubled in the
mice on high-cholesterol diets, and the tumors were markedly larger in size"
-
Three Promising And Innovative Prostate Cancer Therapies In Clinical Trials
At New York-Presbyterian/Weill Cornell - Science Daily, 3/26/05
-
Celebrex Provides A Two Pronged Attack Against Prostate Cancer - Science
Daily, 3/18/05 - "Celebrex, not only targets COX-2,
but also reduces levels of a key protein, cyclin D1, that's critical for
cell replication"
-
High Cholesterol May Speed Prostate Cancer - WebMD, 3/17/05 -
"Our data support the notion that
cholesterol-lowering drugs -- which are widely used and fairly safe -- might
be effective in prevention of prostate cancer, or as an adjunctive therapy
... elevated cholesterol levels did not stimulate new prostate cancers but
promoted tumor growth"
-
ars Safe, Effective
Treatment for Hormone-Refractory Prostate Cancer - Doctor's Guide,
2/7/05
- Obesity May Mask
Prostate Cancer - WebMD, 1/24/05
-
Obesity May Affect Accuracy Of Prostate Screening
- Doctor's Guide, 1/24/05 -
"as BMI increased, PSA linearly decreased ... These
findings, the authors conclude, may explain "the recent reports of inferior
outcomes of prostate cancer treatment in obese men" in that they "may be
caused by delayed detection" rather than biological differences in the
tumor"
-
Celecoxib (Bextra) May Foil Recurrent Prostate Cancer
- Doctor's Guide, 10/12/04 -
"the rate of increase of prostate specific antigen
(PSA), stabilized, slowed, or declined in 92% of 24 men who took celecoxib
twice a day for a year"
- End of an Era for
PSA: A Newsmaker Interview With Thomas Stamey, MD
- Medscape, 9/17/04 - "Over time, the correlation
between PSA levels and the amount of prostate cancer weakened dramatically,
from 43% predictive ability in the first five-year group to 2% in the past
five years. However, PSA levels continued to be accurate as a direct measure
of benign prostatic hyperplasia"
- Enlarged
Prostate Tied to Sexual Dysfunction - WebMD, 6/11/04 -
"urinary tract problems caused by an enlarged
prostate, such as getting up many times during the night to urinate, may be
associated with erectile dysfunction and other problems relating to sex in
older men ... because both of these conditions are common in aging man, it
may be very difficult to see if a true association exists outside of an
age-related one"
-
New Study Links Common Cholesterol-Lowering Drugs To Reduced Prostate Cancer
Risk - Science Daily, 6/8/04 -
"men who have taken any amount of these drugs, known
as statins, have a 58 percent lower risk of prostate cancer than men who
have taken none at all"
-
Updated Prostate Cancer Guidelines Recommend Lowering the PSA Threshold, Use
of CPSA Test - Doctor's Guide, 4/1/04 -
"studies of the incidence of cancer in men whose PSA
is in the range of 2.5 to 4.0 ng/mL have shown that a substantial number of
men in this group will have cancer"
-
Screening Recommended for Some Men at Age 40 for Prostate Disease
- Doctor's Guide, 3/15/04 - "men as young as 40
years of age should be screened for prostate cancer if they have a prostate
specific antigen (PSA) level greater than 0.6 ng/mL"
-
Change in Prostate-Specific Antigen Level Over Time Not Useful for Prostate
Cancer Screening in Men With Low Levels - Doctor's Guide, 3/1/04 -
"Although the increase in risk of prostate cancer is
highest among men with PSA levels greater than 4 ng/mL, about 40% of
detectable cancers occur in men with levels below this cut-off"
-
Combining High Dose Brachytherapy and External Beam Irradiation is Effective
Therapy for Prostate Cancer - Doctor's Guide, 7/9/03
- Proscar for
Prostate Cancer Prevention: Q&A - WebMD, 6/24/03 -
"a drug called
Proscar
can also prevent or delay prostate cancer. It also shows that the drug may
increase the risk of aggressive, high-grade prostate tumors. And while men
taking Proscar have fewer urinary problems, they also have more
sexual problems"
- Cholesterol
Drugs May Prevent Cancer - WebMD, 6/2/03 -
"Overall, taking
statins reduces risk of developing cancer by
20%, but that protection increases to 36% for people who take statins for
four years or more ... But the benefit stops about six months after the
patient stops taking the drug ... Statins offer the most protection against
prostate and kidney cancer"
-
Investigational Drug, Abarelix, Reduces Risk Of Castration In Prostate
Cancer Patients - Doctor's Guide, 6/3/03
-
Vardenafil Effectively Improves Erectile Dysfunction and Depression
Following Radical Nerve Sparing Prostatectomy - Doctor's Guide, 5/29/03
-
"Whenever you improve erectile dysfunction, you also
see an improvement in depression. You just can't tell which is the cause and
which is the effect" - See
vardenafil.
- PSA Values Fluctuate
Over Time - Medscape, 5/28/03 -
"At one or more follow-up visits, these abnormal PSA
values normalized in 68 (44%) of 154 subjects with PSA level higher than 4
ng/mL, in 116 (40%) of 291 with level higher than 2.5 ng/mL, in 64 (55%) of
117 with an elevation above the age-specific cutoff, and in 76 (53%) of 143
with a level between 4 and 10 ng/mL and a free-to-total ratio of less than
0.25 ng/mL"
-
Study Shows Lower Prostate Specific Antigen Cut-Point for Proceeding to
Biopsy - Doctor's Guide, 4/30/03 -
"For younger people, less than 70 years old,
especially if they have certain risk factors, I would obtain a biopsy if
they have a PSA over 2.5"
-
High Dose Ketoconazole Shows Promise in Hormone-Refractory Prostate Cancer
- Doctor's Guide, 2/2/03 -
"Ketoconazole
causes complete androgenic deprivation, blocking the production of both
testosterone and suprarenal androgens"
-
Dietary Change May Prevent the Most Serious Form of Prostate Cancer
- Doctor's Guide, 8/7/02 -
"While high intake of dietary fat and calcium is
associated with an increased risk of clinically significant, advanced
prostate cancer, it has no apparent impact on risk of early-stage disease"
-
New Leukemia Drug May Fight Prostate Cancer, Too - Intelihealth, 6/12/01
- "Studies have found that Gleevec, also known as
STI571, inhibits tumor growth and preserves bone structure in the tibia of
mice implanted with human prostate cancer cells"
-
New Treatments May Slow Spread of Prostate Cancer, Drugs Give Patients More
Pain-Free Time - WebMD, 5/16/01 -
"On average, the men given the atrasentan had a
delay in progression of their disease, meaning that they experienced a
longer interval without any indicators, such as pain, that the cancer had
spread further into the bone. The drug also slowed by half the rise in
prostate specific antigen (PSA), a blood marker of the amount of prostate
cancer present"
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