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Recent Longevity News for the seven days ending 8/18/10. You should consult your doctor if you are taking any medications. New screen offers hope for copper deficiency sufferers - Science Daily, 8/17/10 - "Copper deficiency diseases can be devastating. Symptoms can range from crippling neurological degeneration in Menkes disease -- a classic copper deficiency disease -- to brittle bones, anaemia and defective skin pigmentation in gastric bypass patients" Marriage and committed romance reduce stress-related hormone production - Science Daily, 8/17/10 - "We found that unpaired individuals of both sexes had higher cortisol levels than married individuals" B vitamins and the aging brain examined - Science Daily, 8/17/10 - "An analysis of volunteers' blood samples showed that lower levels of one B vitamin, folate, were associated with symptoms of dementia and poor brain function, also called "cognitive decline," ... In women, but not men, low levels of folate were associated with symptoms of depression. In fact, female volunteers whose plasma folate levels were in the lowest third were more than twice as likely to have symptoms of depression as volunteers in the highest third ... In research with vitamin B-12, the SALSA team determined that a protein known as holoTC, short for holotranscobalamin, might be key to a new approach for detecting cognitive decline earlier and more accurately"
Vitamin
D may treat or prevent allergy to common mold - Science Daily, 8/16/10 -
"The environmental mold,
Aspergillus fumigatus, is one of the most prevalent fungal organisms inhaled by
people. In the vast majority, it is not associated with disease. However, in
asthmatics and in patients with
Cystic Fibrosis (CF), it can cause
significant allergic symptoms. Up to 15% of CF patients develop a severe
allergic response called Allergic Bronchopulmonary Aspergillosis (ABPA) ...
adding vitamin D not only substantially reduced
the production of the protein driving an allergic response, but it also
increased production of the proteins that promote tolerance" - See
vitamin D at Amazon.com
Green
tea extract appears to keep cancer in check in majority of CLL patients -
Science Daily, 6/4/10 - "the blood lymphocyte (leukemia
cell) count was reduced in one-third of participants, and that the majority of
patients who entered the study with enlarged lymph nodes due to involvement by
CLL saw a 50 percent or greater reduction in their lymph node size ... 31
percent of patients had a 20 percent or greater sustained reduction in blood
leukemia count, and 69 percent of patients with enlarged lymph nodes saw a
reduction of node size of 50 percent or greater" - It says 6/4/10 but it
just showed up. I think it's a misprint. See
green tea extract at Amazon.com Trusting people make better lie detectors - Science Daily, 8/13/10 - "People high in trust were more accurate at detecting the liars -- the more people showed trust in others, the more able they were to distinguish a lie from the truth. The more faith in their fellow humans they had, the more they wanted to hire the honest interviewees and to avoid the lying ones. Contrary to the stereotype, people who were low in trust were more willing to hire liars and they were also less likely to be aware that they were liars ... Although people seem to believe that low trusters are better lie detectors and less gullible than high trusters, these results suggest that the reverse is true ... Contrary to the stereotype, people who were low in trust were more willing to hire liars and they were also less likely to be aware that they were liars ... High trusters were better lie detectors than were low trusters; they also formed more appropriate impressions and hiring intentions" - Not related to anti-aging but an interesting psychology issue.
More support for vitamin D’s colorectal protection - Nutra USA, 8/12/10 -
"In people using NSAIDs,
the potential risk reduction of higher
vitamin D levels was increased to 66 per cent"
- [Abstract] - See
vitamin D at Amazon.com
Lonza’s L-carnitine may boost exercise recovery: Study - Nutra USA, 8/12/10
- "Blood samples showed that
L-carnitine supplementation significantly
improved a range of biochemical markers, including purine metabolism, free
radical formation, and muscle tissue disruption ... The l-carnitine l-tartrate
supplementation therefore reduced both myoglobin and creatine kinase
concentrations, providing additional evidence that LCLT reduces post-exercise
muscle disruption ... Such findings support the additional findings that
l-carnitine l-tartrate significantly reduced muscle soreness immediately after
the exercise workout and at 24 and 48 hours postexercise when compared with the
placebo condition" - [Abstract]
- See
GPLC at Amazon.com Elevated heart rate over time linked to significant risk of death - Science Daily, 8/12/10 - "development of a heart rate of 84 beats per minute or greater that either developed or persisted in patients during the study's average five-year time span was linked to a 55 percent greater risk of cardiovascular death and a 79 percent greater risk of death from all causes ... A healthy heart rate is between 60 and 80 beats per minute ... every extra 10 beats per minute higher than a normal resting pulse was associated with a 16 percent increased risk of death from cardiovascular disease and a 25 percent greater risk of all-cause death ... To date, no medication has been approved in the United States that can reduce heart rate without side effects, although a drug (ivabradine) is being tested"
Pomegranate compounds show skin health potential - Nutra USA, 8/10/10 -
"ellagic acid may
prevent the degradation of collagen in human skin cells, which would maintain
skin structure and slow the formation of wrinkles
... Topical or dietary interventions with berries and pomegranate rich in
ellagic acid and ellagitannins are promising strategies in curtailing skin
wrinkling and cutaneous inflammation associated with chronic UV exposure leading
to photoageing" - [Abstract]
- See
pomegranate at Amazon.com
Astaxanthin’s heart benefits get human data support - Nutra USA, 8/9/10 -
"Daily supplements of the
carotenoid astaxanthin may improve
HDL ‘good’ cholesterol levels in people with mildly
abnormal blood lipid levels ... participants receiving the two highest doses
experienced significant reductions in their
triglyceride levels, of 25 and 24 percent, respectively, compared to
baseline. Furthermore, people receiving 6 or 12 mg per day experienced
significant increases in their HDL-cholesterol levels of 10 and 15 percent,
respectively ... Additionally, adiponectin
levels increased in the two highest dose groups, with increases over 20 percent
in the 12 mg per day group, and between 15 and 20 percent in the 18 percent
group" - See
Jarrow Formulas, CarotenALL, Mixed Carotenoid Complex at Amazon.com Abstracts from this week's Doctor's Guide Nutrition/Dietetics plus abstracts from my RSS feeds (Click here for the journals, the PubMed ones at the top): T3 affects expression of collagen I and collagen cross-linking in bone cell cultures - Biochem Biophys Res Commun. 2010 Aug 10 - "T3 increased mRNA expressions of procollagen-lysine-1,2-oxoglutarate 5-dioxygenase 2 (Plod2) and of lysyloxidase (Lox), both genes involved in post-translational modification of collagen. Moreover, it stimulated mRNA expression of BMP-1, the processing enzyme of the lysyloxidase-precursor and of procollagen. An increase in the collagen cross-link-ratio Pyr/deDHLNL indicates, that T3 modulated cross-link maturation in the MC3T3-E1 culture system. These results demonstrate that T3 directly regulates collagen synthesis and collagen cross-linking by up-regulating gene expression of the specific cross-link related enzymes, and underlines the importance of a well-balanced concentration of thyroid hormones for maintenance of bone quality" - See T3 at International Anti-aging Systems. The effects of vitamin C supplementation on incident and progressive knee osteoarthritis: a longitudinal study - Public Health Nutr. 2010 Aug 16:1-7 - "In the present prospective cohort study, we found no evidence to support a protective role of vitamin C in the progression of knee OA. However, after controlling for confounding variables, these data suggest that vitamin C supplementation may indeed be beneficial in preventing incident knee OA. Given the massive public health burden of OA, the use of a simple, widely available and inexpensive supplement to potentially reduce the impact of this disease merits further consideration"
N-3
polyunsaturated fatty acids early supplementation improves ultrasound indices of
endothelial function, but not through NO inhibitors in patients with acute
myocardial infarction N-3 PUFA supplementation in acute myocardial infarction
- Clin Nutr. 2010 Aug 11 - "the study group (group P; n
= 20; standard therapy + n-3 PUFA 1g daily)
or the control group (group C; n = 20; standard therapy) ... There was a
significant difference between both groups in mean delta (baseline/after one
month) FMD (P: 8.1 +/- 12.6% vs C: -2.2 +/- 11.8%; p = 0.02) with no difference
in mean delta NMD (P: 3.3 +/- 11.9% vs 0.66 +/- 14.3%; p = 0.53). We found also
a significant increase in mean FMD (7.4 +/- 6.4 to 15.5 +/- 10.5%; p = 0.02)
with a nonsignificant change in mean NMD values (26.9 +/- 12.1 to 30.2 +/-
14.0%; p = 0.24) after 1-month therapy with n-3 PUFA. FMD and NMD mean values
did not change in control patients (FMD: 11.6 +/- 6.1% to 9.4 +/- 8.0%; p = 0.5
NMD: 25.1 +/- 11.4% to 25.8 +/- 14.0%; p = 0.84). The comparison of mean delta
ADMA values for both groups revealed no differences (P: 6.2 +/- 9.7 mumol/l vs
C: 3.6 +/- 9.5 mumol/l; p = 0.43). Mean serum ADMA concentrations were
significantly increased after 1-month therapy in the group P (P: 2.1 +/- 1.8 to
8.3 +/- 9.7 mumol/l; p = 0.001; C: 4.5 +/- 7.1 to 8.1 +/- 9.5 mumol/l; p =
0.09). However, there was a nonsignificant difference in mean baseline serum
ADMA levels between both groups (P: 2.1 +/- 1.8 mumol/l vs C: 4.5 +/- 7.1
mumol/l; p = 0.32). There were no significant correlations between FMD, NMD,
ADMA levels and demographic, clinical or biochemical parameters. CONCLUSIONS:
Early and short-term n-3 PUFA supplementation improved ultrasound indices of
endothelial function without affecting serum ADMA levels in patients with AMI
and successful primary PCI" - See
Mega Twin EPA at Amazon.com
Omega-3
Polyunsaturated Fatty Acid Supplementation Confers Long-Term Neuroprotection
Against Neonatal Hypoxic-Ischemic Brain Injury Through Anti-Inflammatory Actions
- Stroke. 2010 Aug 12 - "neonatal hypoxia/ischemia
(H/I) ... : Female rats were treated with or without an
omega-3 polyunsaturated fatty acids-enriched diet from the second day of
pregnancy until 14 days after parturition ... Omega-3 polyunsaturated fatty acid
supplementation significantly reduced brain damage and improved long-term
neurological outcomes up to 5 weeks after neonatal H/I injury. Omega-3
polyunsaturated fatty acids exerted an anti-inflammatory effect in microglia
both in an in vivo model of H/I and in in vitro microglial cultures subjected to
inflammatory stimuli by inhibiting NF-kappaB activation and subsequent release
of inflammatory mediators. CONCLUSIONS: Our results suggest that omega-3
polyunsaturated fatty acids confer potent neuroprotection against neonatal H/I
brain injury through, at least partially, suppressing a microglial-mediated
inflammatory response" - See
Mega Twin EPA at Amazon.com Cabergoline monotherapy in the long-term treatment of Cushing's disease - Eur J Endocrinol. 2010 Aug 11 - "Within 3-6 months, complete response was achieved in 11 patients (36.6%) and partial response in 4 (13.3%). After longer term therapy, 9 patients (30%) remain with a complete response after a mean of 37 months (range from 12-60 months) with a mean dose of 2.1 mg/wk of cabergoline. Two patients escaped after 2 and 5 years of complete response, but one transiently renormalized UFC after an increase in cabergoline dosage. No long-term response was maintained in 4 initial partial responders. Conclusions: Cabergoline monotherapy can provide an effective long-term medical therapy for selected patients with CD, but requires close follow-up for dose adjustments"
Luteolin
Inhibits Microglia and Alters Hippocampal-Dependent Spatial Working Memory in
Aged Mice - J Nutr. 2010 Aug 4 - "Taken together,
the current findings suggest dietary luteolin
enhanced spatial working memory by mitigating microglial-associated inflammation
in the hippocampus. Therefore, luteolin consumption may be beneficial in
preventing or treating conditions involving increased microglial cell activity
and inflammation" - See
Jarrow Formulas, CarotenALL, Mixed Carotenoid Complex at Amazon.com Adherence to an (n-3) Fatty Acid/Fish Intake Pattern Is Inversely Associated with Metabolic Syndrome among Puerto Rican Adults in the Greater Boston Area - J Nutr. 2010 Aug 11 - "The (n-3) fatty acid/fish factor was associated with a lower likelihood of metabolic syndrome (Q5 vs. Q1: odds ratio: 0.54, 95% CI: 0.34, 0.86)" Dietary Antioxidant and Mineral Intake in Humans Is Associated with Reduced Risk of Esophageal Adenocarcinoma but Not Reflux Esophagitis or Barrett' Esophagus - J Nutr. 2010 Aug 11 - "We found that overall antioxidant index, a measure of the combined intake of vitamin C, vitamin E, total carotenoids, and selenium, was associated with a reduced risk of EAC [odds ratio (OR) = 0.57; 95% CI = 0.33-0.98], but not BE (OR = 0.95; 95% CI = 0.53-1.71) or RE (OR = 1.60; 95% CI = 0.86-2.98), for those in the highest compared with lowest category of intake. Those in the highest category of vitamin C intake had a lower risk of EAC (OR = 0.37; 95% CI = 0.21-0.66; P-trend = 0.001) and RE (OR = 0.46; 95% CI = 0.24-0.90; P-trend = 0.03) compared with those in the lowest category. Vitamin C intake was not associated with BE, and intake of vitamin E, total carotenoids, zinc, copper, or selenium was not associated with EAC, BE, or RE. In conclusion, the overall antioxidant index was associated with a reduced risk of EAC. Higher dietary intake of vitamin C was associated with a reduced risk of EAC and RE. These results suggest that antioxidants may play a role in the pathogenesis of RE and EAC and may be more important in terms of progression rather than initiation of the disease process"
Administration of natural astaxanthin increases serum HDL-cholesterol and
adiponectin in subjects with mild hyperlipidemia - Atherosclerosis. 2010
Apr;209(2):520-3 - "Multiple comparison tests showed
that 12 and 18 mg/day doses significantly reduced
triglyceride, and 6 and 12 mg doses significantly increased
HDL-cholesterol. Serum
adiponectin was increased by
astaxanthin (12 and 18 mg/day), and changes
of adiponectin correlated positively with HDL-cholesterol changes independent of
age and BMI" - See
Jarrow Formulas, CarotenALL, Mixed Carotenoid Complex at Amazon.com
The Use of
Probiotics in Healthy Volunteers With Evacuation Disorders and Hard Stools: A
Double-blind, Randomized, Placebo-controlled Study/a> - J Clin Gastroenterol.
2010 Aug 6 - "Subjects treated with the mixed probiotic
strains L. plantarum LP01 and B. breve BR03 or B. animalis subsp. lactis BS01
reported a significant improvement in the number of weekly
bowel movements and in the main troubles associated with evacuations,
particularly consistency of feces and ease of expulsion. Discomfort items such
as abdominal bloating and anal itching, burning, or pain also registered a
relevant improvement in the active groups receiving
probiotics" - See
probiotics at Amazon.com
Blood
25-Hydroxyvitamin D3 Concentrations and Incident Sporadic Colorectal Adenoma
Risk: A Pooled Case-Control Study - Am J Epidemiol. 2010 Jul 22 -
"In the pooled analysis, higher circulating 25(OH)D(3)
concentrations were statistically significantly associated with decreased
colorectal adenoma risk (highest vs. lowest quartile odds ratio = 0.59, 95%
confidence interval: 0.41, 0.84). The observed inverse association was stronger
among participants who used
nonsteroidal antiinflammatory drugs regularly
(highest vs. lowest quartile odds ratio = 0.33, 95% confidence interval: 0.19,
0.56). Inverse associations between 25(OH)D(3) and colorectal adenoma did not
differ substantially by other risk factors or by adenoma characteristics. These
findings support the hypothesis that greater
vitamin D exposure may reduce the risk of colorectal adenoma and suggest
that it may do so more strongly in combination with antiinflammatory agents"
- See
vitamin D at Amazon.com
l-Carnitine l-artrate supplementation favorably affects biochemical markers of
recovery from physical exertion in middle-aged men and women - Metabolism.
2010 Aug;59(8):1190-9 - "Two grams of
l-carnitine supplementation had positive
effects and significantly (P < or = .05) attenuated biochemical markers of
purine metabolism (ie, hypoxanthine, xanthine oxidase), free radical formation
(malondialdehyde), muscle tissue disruption (myoglobin, creatine kinase), and
muscle soreness after
physical exertion. However, markers of physical
performance (ie, strength, power, get up and go) were not affected by
supplementation. These findings support our previous findings of l-carnitine in
younger people that such supplementation can reduce chemical damage to tissues
after exercise and optimize the processes of muscle tissue repair and
remodeling" - See
l-carnitine at Amazon.com
Dietary compound ellagic
acid alleviates skin wrinkle and inflammation induced by UV-B irradiation -
Exp Dermatol. 2010 Aug;19(8):e182-90 - "Ellagic acid, a
polyphenol compound present in berries and
pomegranate, has received attention as an agent that may have potential
bioactivities preventing chronic diseases ... These results demonstrate that
ellagic acid prevented collagen destruction and inflammatory responses caused by
UV-B. Therefore, dietary and pharmacological interventions with berries rich in
ellagic acid may be promising treatment strategies interrupting skin
wrinkle and inflammation associated with chronic UV exposure leading to
photoageing" - See
pomegranate at Amazon.com
Vitamin D
status and measures of cognitive function in healthy older European adults -
Eur J Clin Nutr. 2010 Aug 11 - "Serum 25(OH)D was
significantly and inversely correlated with four assessments within the spatial
working
memory (SWM) test parameter (SWM between errors
(r=-0.166; P=0.003); SWM between errors 8 boxes (r=-0.134; P=0.038); SWM
strategy (r=-0.246; P<0.0001); and SWM total errors (r=-0.174; P<0.003)). When
subjects were stratified on the basis of tertiles (T) of serum 25(OH)D (<47.6
(T(1)); 47.6-85.8 (T(2)); and >85.8 (T(3)) nmol/l), fewer errors in SWM test
scores occurred in subjects in the third T when compared with the first T
(P<0.05-0.084). Stratification by sex showed that these differences between
tertiles strengthened (P<0.001-0.043) in the females, but the differences were
not significant (P>0.6) in males. Conclusions:
Vitamin D
insufficiency, but not deficiency, is widespread in the older population of
several European countries. Low vitamin D status was associated with a reduced
capacity for SWM, particularly in women" - See
vitamin D at Amazon.com
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