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Recent Longevity News for the seven days ending
6/19/13. You should consult your doctor if you are taking any medications.
Vitamin
D supplementation may delay precocious puberty in girls - Science Daily,
6/17/13 - "Among girls, puberty generally begins between
the ages of 10 and 14 ... Precocious puberty is diagnosed in girls when sexual
development begins before the age of 8 ... girls with precocious puberty were
significantly more likely than those with age-appropriate development to have a
severe vitamin D deficiency. Among the
precocious puberty group, 44 percent had a severe deficiency in vitamin D,
compared to 21 percent of the group with age-appropriate physical development"
Testosterone improves verbal learning and memory in postmenopausal women -
Science Daily, 6/17/13 - "the Australian researchers
randomly assigned 92 healthy postmenopausal
women, ages 55 to 65, who were not receiving estrogen therapy, to receive one of
two treatments for 26 weeks. The treatments were a
testosterone gel (LibiGel, BioSante
Pharmaceuticals) applied daily to the upper arm, or a placebo, an
identical-appearing gel containing none of the medication ... Before treatment
and at 12 and 26 weeks of treatment, subjects underwent comprehensive testing of
their cognitive function ... After 26 weeks, the women who received testosterone
therapy had a statistically significant and clinically meaningful improvement in
verbal learning and memory -- how well they recalled words from a list"
Testosterone therapy may help improve pain in men with low testosterone -
Science Daily, 6/17/13 - "The study included 84 men ages
18-64 years old with opioid-induced
testosterone deficiency. Their average age was 49 years ... At the beginning
of the study, and then again at 14 weeks, the investigators assessed
pain measures and quality-of-life parameters"
High
prevalence of NSAID prescription in those at risk of heart attack/death in
primary care - Science Daily, 6/14/13 - "These data
demonstrate an immediate increase in the risk of death and MI, challenging the
safety of even short term use"
Healthy Lifestyle Habits
Linked to Better Memory - Medscape, 6/13/13 - "A
random sample of 18,552 adults in all 50 states participated in this study,
which was conducted between December 2011 and the end of January 2012 ... Older
adults who did not eat healthily had an OR of 1.86 for
memory problems compared with those who reported
better eating habits ... Smoking increased the OR for memory problems to 1.88 in
young adults compared with nonsmokers ... Weekly exercise was linked to better
memory in the middle-aged and older groups, but not in their younger peers ...
Obesity predicted memory problems in the 2 older groups"
Vitamin
C may be beneficial against exercise-induced bronchoconstriction - Science
Daily, 6/12/13 - "Exercise-induced bronchoconstriction
means the transient narrowing of the airways that occurs during or after
exercise. It can cause symptoms such as cough,
wheezing and the shortness of breath. Formerly, this condition was called
exercise-induced asthma ... About 10% of the general population suffers from
exercise-induced bronchoconstriction, but among some fields of competitive
winter sports the prevalence can be up to 50% ... The pooled estimate of
vitamin C effect indicated a 48% reduction in
the FEV1 decline caused by exercise" - See vitamin C at Amazon.com.
More Evidence Links BPA to Childhood Obesity - WebMD, 6/12/13 -
"researchers measured BPA
levels in the urine of more than 1,300 children in China and compared those
levels to their body weights ... also asked the kids about other things that may
influence body weight, such as how often they ate junk food, fruits and
vegetables, how much exercise they got, whether their parents were overweight
and how long they played video games, on average, each day ... After taking all
those factors into account, the investigators found that girls aged 9 to 12 who
had higher-than-average levels of BPA in their urine were about twice as likely
to be obese as those with lower-than-average levels. The researchers didn't see
the same association for boys or for older girls ... One explanation for the
results may be that girls who are entering puberty are uniquely vulnerable to
the effects of hormone-disrupting chemicals"
Only 1 in 20 people wash
their hands long enough - today.com, 6/12/13 - "only
five percent of people wash their hands the recommended amount of time,
averaging only six seconds. Half of hand washers don’t even use soap"
Vitamin D Deficiency
Associated With GI and Ear Infections - Medscape, 6/12/13 -
"measured plasma
25-hydroxyvitamin D (25(OH)D) concentrations in a random sample of 475
children (mean +/- standard deviation age: 8.9 +/- 1.6 years) and followed them
for an academic year ... VDD was associated with increased rates of diarrhea
with vomiting (adjusted incidence rate ratio: 2.05; 95% confidence interval:
1.19, 3.53) and earache/discharge with fever (adjusted incidence rate ratio:
2.36; 95% confidence interval: 1.26, 4.44). VDD was not significantly related to
cough with fever" - See
vitamin D at Amazon.com.
Hands-free talking and texting are unsafe for drivers, study shows - Science
Daily, 6/12/13 - "There is a looming public safety
crisis ahead with the future proliferation of these in-vehicle technologies,"
said AAA President and CEO Robert L. Darbelnet. "It's time to consider limiting
new and potentially dangerous mental distractions built into cars, particularly
with the common public misperception that hands-free means risk-free."
Half of Survivors of
Traumatic Events Experiencing Nightmares and Insomnia - firstwordpharma.com,
6/6/13 - "Stressful events were defined as exposure to
natural disasters; involvement in an accident or fire; experiencing combat or
work in a war zone; experiencing physical or sexual assault; witnessing physical
or sexual assault; observing a threat or injury to a family member; witnessing a
death due to violence; and witnessing a sudden, unexpected death ... 43.7% of
respondents to this survey complained of sleep disturbances" - This
article was in my docguide.com feed.
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):
Effects of
walnuts on endothelial function in overweight adults with visceral obesity: a
randomized, controlled, crossover trial - J Am Coll Nutr. 2012
Dec;31(6):415-23 - "Forty-six overweight adults (average
age, 57.4 years; 28 women, 18 men) with elevated waist circumference and 1 or
more additional signs of metabolic syndrome were randomly assigned to two 8-week
sequences of walnut-enriched ad libitum diet and ad libitum diet without
walnuts, which were separated by a 4-week washout
period ... Daily ingestion of 56 g of walnuts improves endothelial function in
overweight adults with visceral adiposity. The addition of walnuts to the diet
does not lead to weight gain"
Magnesium
intake decreases Type 2 diabetes risk through the improvement of insulin
resistance and inflammation: the Hisayama Study - Diabet Med. 2013 Jun 12 -
"A total of 1999 subjects without
diabetes aged 40-79 years who underwent a 75-g
oral glucose tolerance test were followed up prospectively for a mean of 15.6
years ... The age- and sex-adjusted incidence of Type 2 diabetes significantly
decreased with increasing magnesium intake
quartile levels (≤ 148.5, 148.6-171.5, 171.6-195.5 and ≥ 195.6 mg/day, P for
trend = 0.01). In multivariate analyses, after adjusting for comprehensive risk
factors and other dietary factors, the hazard ratio of Type 2 diabetes was 0.67
(95% CI 0.49-0.92; P = 0.01) in the third quartile and 0.63 (95% CI 0.44-0.90; P
= 0.01) in the highest quartile compared with the first quartile" - See magnesium supplements at Amazon.com.
Urine
melatonin levels are inversely associated with sarcopenia in postmenopausal
women - Menopause. 2013 Jun 10 - "Seventy-eight
Korean postmenopausal women participated ... Our study shows an inverse
association between urine melatonin and
sarcopenia, suggesting that melatonin may have
a protective role in the pathophysiology of sarcopenia" - See
melatonin at Amazon.com.
Effects of
low-fat or full-fat fermented and non-fermented dairy foods on selected
cardiovascular biomarkers in overweight adults - Br J Nutr. 2013 Jun 12:1-8
- "In a randomised cross-over study, twelve
overweight/obese subjects consumed during two 3-week periods two full-fat dairy
diets containing either yogurt plus cheese (fermented) or butter, cream and ice
cream (non-fermented) or a low-fat milk plus yogurt diet, with the latter being
consumed between and at the end of the full-fat dairy dietary periods ... In
conclusion, short-term diets containing low-fat dairy products did not lead to a
more favourable biomarker profile associated with CVD risk compared with the
full-fat dairy products, suggesting that full-fat fermented dairy products may
be the more favourable" - Note: See the yogurt recipe at the top of my
yogurt page. It's made with 50% full fat
milk powder and 50% non-fat milk powder.
A cohort
study of metformin exposure and survival in patients with stage I-III colorectal
cancer - Cancer Epidemiol Biomarkers Prev. 2013 Jun 10 -
"Adult stage I-III colorectal
cancer patients diagnosed 2001-2006 were identified from the National Cancer
Registry Ireland. Use of metformin and other
anti-diabetic medications was determined from a linked national prescription
claims database ... High intensity exclusive metformin use was associated with a
significant reduction in colorectal cancer-specific mortality (HR 0.44" -
See
metformin at The Antiaging Store.
Coffee
consumption delays the hepatitis and suppresses the inflammation related gene
expression in the Long-Evans Cinnamon rat - Clin Nutr. 2013 May 17 -
"Large-scale epidemiological studies have shown that
drinking more than two cups of coffee per day
reduces the risks of hepatitis and
liver cancer ... Coffee administration for
25 weeks delayed the occurrence of hepatitis by two weeks, significantly
improved survival, reduced the expression of inflammatory cytokines, and reduced
the incidence of small pre-neoplastic liver foci in LEC rats ... This study
showed the efficacy of coffee in the prevention of hepatitis and liver
carcinogenesis in the LEC model"
Tongkat Ali
as a Potential Herbal Supplement for Physically Active Male and Female Seniors-A
Pilot Study - Phytother Res. 2013 Jun 11 - "Tongkat
Ali (Eurycoma longifolia; TA) is known to increase testosterone levels and
alleviate aging males' symptoms. This study aimed at investigating TA as an
ergogenic supplement for elderly people. Thirteen physically active male and 12
physically active female seniors (57-72 years) were supplemented with 400-mg TA
extract daily for 5 weeks ... Treatment resulted in significant increases in
total and free testosterone concentrations
and muscular force in men and women. The increase in free testosterone in women
is thought to be due to the significant decline in sex
hormone-binding globulin concentrations" - See
Tongkat Ali products at iHerb.
Physical
activity and other lifestyle factors in relation to the prevalence of colorectal
adenoma: a colonoscopy-based study in asymptomatic Koreans - Cancer Causes
Control. 2013 Jun 11 - "1,526 asymptomatic subjects who
underwent a colonoscopy were enrolled. Lifestyle factors such as physical
activity and smoking data were obtained using a questionnaire ... higher levels
of physical activity were associated with a
significantly decreased risk of colorectal adenomas
(OR = 0.56, 95 % CI 0.40-0.79). This inverse association was stronger for the
risk of high-risk adenomas (OR = 0.39, 95 % CI 0.21-0.73) than for low-risk
adenomas (OR = 0.62, 95 % CI 0.43-0.89). The negative relation of physical
activity was significant for distal colon adenomas (OR = 0.54, 95 % CI
0.30-0.95) and the adenomas with multiple locations (OR = 0.39, 95 % CI
0.21-0.72)"
Neat Tech Stuff / "How To's":
-
HitLIghts A19 Cool White (6000K) AffordXII 12W LED Light Bulb, Equivalent to
75W Incandescent (990 Lumen), UL Listed
- 6,500 Kelvin (daylight),
rated at 50,000 which is
5 times that
of CFL. It's non-dimmable so you're not paying for something most don't
use. Only uses 12 watts. It should more than pay for itself in the cost of
five bulbs plus the savings in electricity. I've never understood the point
of the 2,700 Kelvin yellow light. I think that was the best they could do
in the old days and they managed to sell people on the "soft white" label.
Some say that low 2,700 Kelvin increases depression and causes sleeping
problems in that
your body doesn't recognize it to produce melatonin. Shipping is free
with Amazon Prime or orders over $25 plus it's an Amazon affiliate so
there's no sales tax. Home Depot wants $30 plus sales tax for the 75 watt
LED's and they only have the 2,700 Kelvin.
Click here for the manufacturer's video.
- I came up with this brainstorm while sleeping and when I got up I
Googled it. The reason for the inconsistencies in the thickness of the
yogurt batches has to be in the strength or weakness of the cultures due to
the expiration date. There has to be a way to measure the yogurt to see if
it’s done. For $11 it’s worth a try.
Health Focus (Cortisol):
Related Topics:
Alternative News:
-
Fish oil
supplementation reduces cortisol basal levels and perceived stress: A
randomized, placebo-controlled trial in abstinent alcoholics - Mol Nutr Food
Res. 2013 Feb 6 - "Behavioral distress and dysfunctions
of hypothalamic-pituitary-adrenocortical (HPA) axis play a central role in
alcohol abuse. Omega-3 fatty acids are proposed as having antistress, regulatory
effects on HPA responsiveness ... doubleblind, placebo-controlled trial was
performed in male alcoholics undergoing residential rehabilitation program, to
evaluate the effects of 3-week supplementation with fish-oil providing
eicosapentaenoic (60 mg/day) and docosahexaenoic acid (252 mg/day) on perceived
stress/anxiety and HPA activity, assessed by measuring saliva basal cortisol
levels at various daytimes ... In conclusion, an elevated omega-3 intake may
reduce distress symptoms and basal cortisol secretion in abstinent alcoholics,
thus providing a valid subsidiary measure to increase the efficacy of
rehabilitation programs in ethanol addicts" - Note: I'm wondering why
they chose such a low dose. That's not even the amount of omega-3 in the
average capsule on one good fish oil capsule. See
Mega Twin EPA at Amazon.com
and
Jarrow Max DHA at Amazon.com.
-
Oxytocin, Social Sharing and Recovery from Trauma - Science Daily, 12/18/12
- "'social sharing of emotions' (SSE) ... SSE, like the
neuropeptide oxytocin (OT) -- known variously as 'the hug hormone', 'the moral
molecule' and 'the natural love drug' -- has a calming and bonding function in
humans. So a team of researchers decided to examine whether it followed that
administering oxytocin might ease this therapeutic and powerful 'social sharing
of emotions' ... What they found was that OT did not make people more talkative
-- the word counts in the letters were the same -- but it did increase the
participants' willingness to share the specific component that is responsible
for the therapeutic effects of social sharing: emotions. As the researchers
note, "the findings are the more remarkable because they were obtained among
men, who may be less inclined than women to express their emotions." ... there
may be further implications for human health, related to OT's antagonistic
effect on the stress hormone cortisol" - See
Oxytocin Factor
or
Oxy Pro (Oxytocin) Nasal Spray at International Anti-aging Systems.
-
Nutrient
in eggs and meat may influence gene expression from infancy to adulthood -
Science Daily, 9/20/12 - "Consuming greater amounts of
choline -- a nutrient found in eggs and meat -- during pregnancy may lower an
infant's vulnerability to stress-related illnesses, such as mental health
disturbances, and chronic conditions, like hypertension, later in life ... More
choline in the mother's diet led to a more stable HPA axis and consequently less
cortisol in the fetus ... Pressman joined a team led by Marie Caudill, Ph.D.,
R.D., professor in the Division of Nutritional Sciences at Cornell, in studying
26 pregnant women in their third trimester who were assigned to take 480 mg of
choline per day, an amount slightly above the standard recommendation of 450 mg
per day, or about double that amount, 930 mg per day. The choline was derived
from the diet and from supplements and was consumed up until delivery" -
See
citicholine at Amazon.com.
-
Ginseng May Banish Cancer Fatigue, New Study Finds - ABC News, 6/4/12 -
"Some studies have shown that ginseng decreases
inflammation and the stress hormone cortisol, both of which may be contributing
factors to cancer-related fatigue" - See
ginseng at Amazon.com.
-
Rhodiola rosea: Nature’s anti-depressant - Fox News, 3/7/12 -
"Many studies support what even the ancient Chinese
emperors knew - that Rhodiola rosea gives a terrific lift to body and mind. In
one study of people with stress-related fatigue conducted in Sweden, the
Rhodiola exerted an anti-fatigue effect, increased mental performance, decreased
the stress hormone cortisol in the blood, and reduced stress overall ... In
another study reported in The Journal of Alternative and Complementary Medicine,
Rhodiola rosea caused improvement in patients with generalized anxiety disorder.
Yet another study of depressed people in Armenia showed significant improvement
in overall mood as a result of taking Rhodiola rosea extract" - See
Rhodiola rosea at Amazon.com.
-
Resveratrol
prevents dexamethasone-induced expression of the muscle atrophy-related
ubiquitin ligases atrogin-1 and MuRF1 in cultured myotubes through a
SIRT1-dependent mechanism - Biochem Biophys Res Commun. 2011 Dec 7 -
"Results suggest that resveratrol can prevent
glucocorticoid-induced muscle wasting and that this effect is at least in part
SIRT1-dependent" - Note: I think what they are saying is that
resveratrol may help prevent muscle loss due to high cortisol. Stress increases
cortisol. Exercise may be partially defeating as far as muscle tone in that it
increases cortisol. That's just my theory. See
resveratrol products at Amazon.com.
-
Omega-3 supplements show benefits against anxiety: Human data - Nutra USA,
9/14/11 - "the Ohio State researchers recruited 68
medical students to participate in their parallel group, placebo-controlled,
double-blind trial. The med students were given either placebo capsules or
omega-3 capsules containing 2085 mg of EPA (eicosapentaenoic acid) and 348 mg
DHA (docosahexanoic acid) ... Results showed a 14% reduction in levels of the
production of pro-inflammatory interleukin 6 (IL-6), as well as a 20% reduction
in anxiety symptoms in the omega-3 group, compared to the placebo group ...
Proinflammatory cytokines promote secretion of corticotropin-releasing hormone
(CRH), a primary gateway to hormonal stress responses; CRH also stimulates the
amygdala, a key brain region for fear and anxiety. Accordingly, alterations in
inflammation could also influence anxiety" - [Abstract]
- See
Mega Twin EPA at Amazon.com
and
Jarrow Max DHA at Amazon.com.
Note: CRH increases cortisol. See:
-
Grapefruit
juice and liquorice increase cortisol availability in patients with Addison's
disease - Eur J Endocrinol. 2011 Sep 6 - "Compared
to the ordinary treatment, the median AUC for serum cortisol increased with
liquorice (53783 vs. 50882, p<0.05) and GFJ (60661 vs. 50882, p<0.05). Cortisol
levels in serum were also elevated 2.6h after tablet ingestion (liquorice 223
vs. 186 nmol/L, p<0.05; GFJ 337 vs. 186 nmol/L, p<0.01). Liquorice increased the
median urinary cortisol/cortisone-ratio (0.43 vs 0.21, p<0.00001), whereas GFJ
increased the (aTHF+THF)/THE-ratio (0.55 vs 0.43, p<0.05)" - Note: From
my readings, most have too much cortisol already. I've read where licorice
increases it. Licorice and grapefruit juice sounds like an unlikely combination
but people might want to be aware of it.
-
Preventive
Action of Panax ginseng Roots in Hypercortisolism-induced Impairment of
Hippocampal Neurons in Male C57BL/6N Mice - Phytother Res. 2011
Aug;25(8):1242-5 - "An increasing number of people
suffering from hypercortisolism are at risk of developing hippocampus impairment
and mental disorders. The aim of this study was to investigate whether the water
extract of Panax ginseng roots (GWE) could prevent hypercortisolism-induced
adverse consequences. Hypercortisolism was experimentally induced by repeated
corticosterone injection in male mice. Treatment with corticosterone alone
resulted in a significant decrease in hippocampus neurofilament light chain
(NF-L) protein expression and induced depression-like behavior. Serum
corticosterone was significantly increased in the corticosterone-treated mice.
Treatment with GWE (800 and 400 mg/kg) during corticosterone treatment reduced
or partially antagonized the effects induced by corticosterone toward the normal
values of the controls; however, it failed to normalize increased corticosterone
levels in corticosterone-treated mice. Overall, ginseng conclusively exhibited a
protective action against hypercortisolism-induced impairment of hippocampal
neurons" - See
ginseng at Amazon.com.
-
Vitamin A
Decreases Pre-receptor Amplification of Glucocorticoids in Obesity: Study on the
Effect of Vitamin A on 11beta-Hydroxysteroid Dehydrogenase Type 1 Activity in
Liver and Visceral Fat of WNIN/Ob Obese Rats - Nutr J. 2011 Jun 23;10(1):70
- "11beta-hydroxysteroid dehydrogenase type 1
(11beta-HSD1) catalyzes the conversion of inactive glucocorticoids to active
glucocorticoids and its inhibition ameliorates obesity and metabolic syndrome.
So far, no studies have reported the effect of dietary vitamin A on 11beta-HSD1
activity in visceral fat and liver under normal and obese conditions. Here, we
studied the effect of chronic feeding of vitamin A-enriched diet (129mg/kg diet)
on 11beta-HSD1 activity in liver and visceral fat of WNIN/Ob lean and obese rats
... Control groups received stock diet containing 2.6mg vitamin A/kg diet, where
as experimental groups received diet containing 129mg vitamin A/Kg diet for 20
weeks ... Vitamin A supplementation significantly decreased body weight,
visceral fat mass and 11beta-HSD1 activity in visceral fat of WNIN/Ob obese
rats. Hepatic 11beta-HSD1 activity and gene expression were significantly
reduced by vitamin A supplementation in both the phenotypes. CCAAT/enhancer
binding protein alpha(C/EBPalpha), the main transcription factor essential for
the expression of 11beta-HSD1, decreased in liver by vitamin A fed-obese rats,
but not in lean rats. Liver X receptor alpha (LXR alpha), a nuclear
transcription factor which is known to downregulate 11beta-HSD1 gene expression
was significantly increased by vitamin A supplementation in both the phenotypes"
- Note: See my 11beta-HSD1 page.
11beta-HSD1 goes hand in hand with cortisol.
-
Fish Oil
Lowers Cortisol and Body Fat Levels - Vital Choice, 12/13/10 -
"Black tea is shown to rapidly normalize cortisol
levels after stress ... Fish oil has also been found to improve body composition
in preliminary clinical studies … an outcome attributed to various physiological
effects of omega-3s ... In tests performed at the end of the six-week study,
members of the fish oil group showed significantly lower cortisol levels"
- See
Mega Twin EPA at Amazon.com
and
Jarrow Max DHA at Amazon.com.
-
Assessment of psychotropic-like properties of a probiotic formulation (
Lactobacillus helveticus R0052 and Bifidobacterium longum R0175) in rats and
human subjects - Br J Nutr. 2010 Oct 26:1-9 - "In
the preclinical study, rats were daily administered PF
for 2 weeks and subsequently tested in the conditioned defensive burying test, a
screening model for anti-anxiety agents. In the clinical trial, volunteers
participated in a double-blind, placebo-controlled, randomised parallel group
study with PF administered for 30 d and assessed with the Hopkins Symptom
Checklist (HSCL-90), the Hospital Anxiety and Depression Scale (HADS), the
Perceived Stress Scale, the Coping Checklist (CCL) and 24 h urinary free
cortisol (UFC). Daily subchronic administration of PF significantly reduced
anxiety-like behaviour in rats (P < 0.05) and alleviated psychological distress
in volunteers, as measured particularly by the HSCL-90 scale (global severity
index, P < 0.05; somatisation, P < 0.05;
depression, P < 0.05; and anger-hostility, P < 0.05), the HADS (HADS global
score, P < 0.05; and HADS-anxiety, P < 0.06), and by the CCL (problem solving, P
< 0.05) and the UFC level (P < 0.05). L. helveticus R0052 and B. longum R0175
taken in combination display anxiolytic-like activity in rats and beneficial
psychological effects in healthy human volunteers" - Note, in case you
missed it, it's saying that it also reduced cortisol. See
probiotics at Amazon.com.
-
Dietary
fatty acid composition alters 11beta-hydroxysteroid dehydrogenase type 1
gene expression in rat retroperitoneal white adipose tissue - Lipids
Health Dis. 2010 Oct 8;9(1):111 - "The enzyme
11beta-hydroxysteroid dehydrogenase type 1 (11beta-HSD1) amplifies
intracellular glucocorticoid action by converting inactive glucocorticoids
to their active forms in vivo. Adipose-specific overexpression of
11beta-HSD1 induces metabolic syndrome in mice, whereas 11beta-HSD1 null
mice are resistant to it. Dietary trans and saturated fatty acids (TFAs and
SFAs) are involved in the development of metabolic syndrome, whereas
polyunsaturated fatty acids (PUFA) offer protection against this. Here, we
report the effects of chronic feeding of different diets containing
vanaspati (TFA rich), palm oil (SFA rich) and sunflower oil (PUFA rich) at
10%level on 11beta-HSD1 gene expression in rat retroperitoneal adipose
tissue. 11beta-HSD1 gene expression was significantly higher in TFA rich
diet-fed rats compared to SFA rich diet-fed rats, which in turn was
significantly higher than PUFA rich diet-fed rats. Similar trend was
observed in the expression of CCAAT-enhancer binding protein-alpha
(C/EBP-alpha), the main transcription factor required for the expression of
11beta-HSD1. We propose that TFAs and SFAs increase local amplification of
glucocorticoid action in adipose tissue by upregulating 11beta-HSD1 by
altering C/EBP--gene expression. The increased levels of glucocorticoids in
adipose tissue may lead to development of obesity and insulin resistance,
thereby increasing the risk of developing metabolic syndrome" -
Note: 11beta-HSD1 goes hand in hand with cortisol.
-
Emodin,
a natural product, selectively inhibits 11beta-hydroxysteroid dehydrogenase
type 1 and ameliorates metabolic disorder in diet-induced obese mice -
Br J Pharmacol. 2010 Sep;161(1):113-26 -
"11beta-Hydroxysteroid dehydrogenase type 1 (11beta-HSD1) is an attractive
therapeutic target of type 2 diabetes and metabolic syndrome. Emodin, a
natural product and active ingredient of various Chinese herbs, has been
demonstrated to possess multiple biological activities ... Emodin is a
potent and selective 11beta-HSD1 inhibitor with the IC(50) of 186 and 86 nM
for human and mouse 11beta-HSD1, respectively. Single oral administration of
emodin inhibited 11beta-HSD1 activity of liver and fat significantly in
mice. Emodin reversed prednisone-induced insulin resistance in mice, whereas
it did not affect dexamethasone-induced insulin resistance, which confirmed
its inhibitory effect on 11beta-HSD1 in vivo. In DIO mice, oral
administration of emodin improved insulin sensitivity and lipid metabolism,
and lowered blood glucose and hepatic PEPCK, and glucose-6-phosphatase mRNA.
CONCLUSIONS AND IMPLICATIONS This study demonstrated a new role for emodin
as a potent and selective inhibitor of 11beta-HSD1 and its beneficial
effects on metabolic disorders in DIO mice. This highlights the potential
value of analogues of emodin as a new class of compounds for the treatment
of metabolic syndrome or type 2 diabetes" - Note: (11beta-HSD1) goes
hand in hand with cortisol. It seems like what came first, the chicken or
the egg. I googled emodin and didn't see any reliable places that sold it.
One article said that it was in some resveratrol products and that the
emodin was what caused the stomach problems.
-
Oral treatment with L-lysine and L-arginine reduces anxiety and basal
cortisol levels in healthy humans - Biomed Res. 2007 Apr;28(2):85-90 -
"the treatment with L-lysine and L-arginine
decreased the basal levels of salivary cortisol and chromogranin-A (a
salivary marker of the sympatho-adrenal system) in male subjects"
-
Black Tea Soothes Away Stress - Science Daily, 10/4/06 -
"the study participants – who drank a black tea
concoction four times a day for six weeks – were found to have lower levels
of the stress hormone cortisol in their blood after a stressful event,
compared with a control group who drank the fake or placebo tea for the same
period of time"
-
Cortisol, Stress, and Health
- Life Extension Magazine, 12/05 -
"Supplements to reduce high cortisol levels
secondary to stress ...
Vitamin C: 1000-3000 mg/day ... Fish oil (omega-3
fatty acids):1-4 gm/day ... Phosphatidylserine:
300-800 mg/day ... Rhodiola rosea:
100-200 mg/day, standardized extract ... Ginseng:
100-300 mg/day, standardized extract ... Ginkgo
biloba: 100-200 mg/day, standardized extract ...
DHEA: 25-50 mg/day (any hormone supplementation should be monitored by
your physician)"
- Can You Slim Down
with Cortisol Blockers? - Dr. Weil, 10/7/04
- A
botanical to beat 'stress-eaters' - Nutra USA, 4/15/04 -
"Relora
appears to promote weight maintenance and decrease stress arousal as
demonstrated by decreased evening cortisol and decreased systolic blood
pressure" - See
iHerb
Relora products.
- Is Stress Making You Fat?
- Dr. Weil, 1/16/04 -
"In addition to the link to weight gain, elevated
cortisol levels can have adverse effects on the immune system, memory, and
sugar metabolism ... women with a high waist-to-hip ratio, whether they were
overweight or slim, secreted more cortisol under stress and also reported
more stress in their daily lives than women with low waist-to-hip ratios ...
caffeine can elevate levels of cortisol"
-
Alterations in Stress Cortisol Reactivity in Depressed Preschoolers Relative
to Psychiatric and No-Disorder Comparison Groups - Archives of General
Psychiatry, 12/03 -
"the first investigation of HPA axis reactivity in
very young children with a clinical depressive syndrome ... Depressed
preschoolers displayed a pattern of increasing cortisol levels throughout
the assessment in response to both separation and frustration stressors"
- Low-Dose DHEA
Increases Androgen, Estrogen Levels in Menopause
- Medscape, 12/12/03 - "Cortisol F plasma levels
progressively decreased throughout the study. Both groups also experienced
significantly reduced LH and FSH plasma levels"
-
Stress-Busting Help Comes From Hormone - WebMD, 8/2/04 -
"The people who reported fewer symptoms and who performed best at their
military tasks had "significantly higher" levels of the hormone DHEA-S
compared with cortisol"
[Abstract]
- See
iHerb
DHEA products.
- Exercise Boosts
Physical/Mental Health in Diabetics, Breast Cancer Patients, Healthy Males
- Doctor's Guide, 6/22/01 -
"Researchers found minimal decreases in glucose
levels when exercise occurred in the morning, afternoon or evening hours,
but found dramatic decreases when subjects exercised at night. Increases in
levels of the hormones cortisol and thyrotropin were greater in the evening
and night."
-
It is Never Too Late to Regenerate Your Brain - Life Extension Magazine,
6/01 - "Lower your stress, lower your cortisol
levels and it is likely that your brain can regenerate its powers to learn
and remember"
-
Enhancing Cognitive Function - Life Extension Magazine, 5/00
-
Depression Protocol - Life Extension Foundation
- Muscle
Breakdown: Is Cortisol Leading You Down the Catabolic Pathway?
- Rehan Jalali/thinkmuscle.com
-
Stress: The Hidden Factor For Weight Gain - Nutrition Science News, 4/01
- "Under stress, the body excretes
corticotrophin-releasing hormone and adrenalin. This reaction stimulates the
release of cortisol from the adrenal cortex. In turn, cortisol, a
glucocorticoid, stimulates glucose release into the bloodstream, which,
during periods of chronic stress, creates an excessive release of insulin.
Insulin, which is part of the endocrine system, is a fat-storage hormone
that overrides the stress signal from adrenalin to burn fat. The excess
release of insulin gives the body the message to store fat in the abdomen"
- Clinical Trial
Update: STGI Announces Anticort's FDA Phase I/II is Moving Forward -
Business Wire, 7/28/99 (same article as above dead link)
-
Sports Science - An Answer To Intense Training - Health & Nutrition
Breakthroughs, 7/98 - "The research team found that,
compared to placebo, the plasma cortisol response to exercise was about 16
percent lower for the 400 mg dose of PS and 30 percent lower for the 800 mg
dose."
-
Anti-Cortisols May Offer New Hope For Retinitis Pigmentosa - Doctor's
Guide, 11/17/97 - "According to Sapse, RP can be
treated initially with a cocktail of anti-cortisol nutritional compounds
including vitamin A, zinc, ginkgo biloba and acetyl-L-carnitine . . ."
- Findings Show Cortisol's
Major Role in AIDS and Other Diseases - Doctor's Guide, 6/21/96 -
"Anticort, (to lower cortisol) a high dose form of stabilized
procaine HCL, is being successfully tested in pilot clinical studies in
Brazil and the U.S., in HIV+ and AIDS populations ... Researchers have
already started to explore the therapeutic benefits of such an approach
through the use of anti-cortisol drugs, such as
RU-486, DHEA, Ketaconazole, Anticort and
Tianeptine"
-
Effect of 5-hydroxytryptophan on serum cortisol levels in major affective
disorders. II. Relation to suicide, psychosis, and depressive symptoms
- Arch Gen Psychiatry 1984 Apr;41(4):379-87 -
"Serum cortisol levels were significantly higher
after administration of 5-hydroxytryptophan (5-HTP), 200 mg orally"
- Study
20 - The Hypericum Homepage - "Both serum-cortisol and serum-prolactin
were lowered significantly after three weeks of treatment with hypericum
extract in male rats."
Other News:
-
Oncology Pipeline | Pasireotide (SOM230) - A Multigland Somatostatin
Analogue | Novartis Oncology
-
Mortality and Morbidity in Cushing's Syndrome in New Zealand - Clin
Endocrinol (Oxf). 2011 May 24 - "36 patients died
during follow-up compared with 8.8 expected deaths (SMR 4.1, 95%CI 2.9-5.6)
... CS is associated with both high mortality and a high prevalence of
co-morbidities, even when biochemical cure rates are between 80-90"
-
Older age memory loss tied to stress hormone receptor in brain - Science
Daily, 4/6/11 - "one receptor was activated by low
levels of cortisol, which helped memory. However, once levels of this stress
hormone were too high they spilled over onto a second receptor. This
activates brain processes that contribute to memory impairment ... high
levels of the stress hormone in aged mice made them less able to remember
how to navigate a maze. The memory recall problem was reversed when the
receptor linked to poor memory was blocked ... lowering the levels of these
stress hormones will prevent them from activating a receptor in the brain
that is bad for memory ... The researchers are currently investigating a new
chemical compound which blocks an enzyme -- 11beta-HSD1 -- that is involved
in producing stress hormones within cells"
-
High
blood cortisol levels significantly increases death rate in patients with
acute coronary syndrome - Science Daily, 5/27/10 -
"1036 patients with acute coronary syndrome were
studied for an average period of 7.7 years. There were no significant
differences in the serum cortisol levels between patients with and without
acute coronary syndrome. However, the patients with ACS and high cortisol
levels had a significantly elevated number of deaths when compared to the
patients with ACS and the lowest cortisol levels. 758 total deaths were
reported during the follow-up period. The ACS patients with the highest
cortisol levels (i.e. the highest 25% serum cortisol) were significantly
more likely to die from fatal cardiovascular events than those with the
lowest cortisol levels (the lowest 25% serum cortisol). (The hazard ratio
for highest versus lowest quartile of SCC was 1.89"
-
The
relationship of serum and salivary cortisol levels to male sexual
dysfunction as measured by the International Index of Erectile Function
- Int J Impot Res. 2009 May 7 - "testosterone (T)
and cortisol (F) ... (Total-T, Free-T, Bioavailable-T, Total-F and
Bioavailable-F) and salivary hormones (Saliva-T and Saliva-F) ...
International Index of Erectile Function (IIEF) ... Free-T and
Bioavailable-T showed significant inverse correlations with age (P<0.01). In
the group not taking antidepressants, the levels of Bioavailable-F and
Saliva-F showed significant inverse correlations with a portion of the IIEF
score (P<0.05). However, reductions in Bioavailable-T and Saliva-T showed no
association with the IIEF score. In the group taking antidepressants, these
hormone levels showed no correlation with IIEF"
-
Effects of phosphatidylserine supplementation on exercising humans -
Sports Med. 2006;36(8):657-69 - "S-PtdSer 800 mg/day
reduced the cortisol response to overtraining during weight training while
improving feeling of well-being and decreasing perceived muscle soreness"
-
Associations of salivary cortisol with cognitive function in the Baltimore
memory study - Arch Gen Psychiatry. 2007 Jul;64(7):810-8 -
"Higher levels of pretest and mean cortisol as well
as the area under the curve of cortisol over the study visit were associated
with worse performance (P < .05) in 6 domains (language, processing speed,
eye-hand coordination, executive functioning, verbal memory and learning,
and visual memory). For instance, an interquartile range increase in the
area under the curve was equivalent to a decrease in the language score
expected from an increase in 5.6 (95% confidence interval, 4.2-7.1) years of
age"
-
Chronic Exposure To Stress Hormone Causes Anxious Behavior In Mice -
Science Daily, 4/17/06 - "Scientists already knew
that many people with depression have high levels of cortisol, a human
stress hormone, but it wasn't clear whether that was a cause or effect. Now
it appears likely that long-term exposure to cortisol actually contributes
to the symptoms of depression"
-
Pharmacologic management of Cushing syndrome : new targets for therapy -
Treat Endocrinol. 2005;4(2):87-94 -
"Compounds with neuromodulatory properties have been
effective in only a limited number of cases of
hypothalamic-pituitary-dependent Cushing disease, the most common form of
Cushing syndrome. These agents include serotonin antagonists
(cyproheptadine, ketanserin, ritanserin), dopamine agonists (bromocriptine,
cabergoline), GABA agonists (valproic acid [sodium valproate]), and
somatostatin analogs (octreotide). Interesting new avenues at the pituitary
level involve the potential use of thiazolidinedione compounds, such as
rosiglitazone, and of retinoic acid, which are ligands of different nuclear
hormone receptors involved in hypothalamic-pituitary regulation"
-
Diabetes Drugs May Help Cushing's Syndrome - Reuters Wire, 11/07/2002 -
"Cushing's syndrome results from high levels of the
hormone cortisol, and can cause fat accumulation in the upper body and face,
and thinning of the arms and legs. Patients can experience high blood
pressure and high blood sugar, along with depression, fatigue, irritability
and weakened bones ... a protein called PPAR-gamma, which is found on
pituitary gland tumor cells, appears to be linked to overproduction of ACTH
... researchers injected mice with ACTH-secreting pituitary tumor cells and
then treated them with commonly used diabetes drugs,
rosiglitazone (Avandia) and troglitazone, or an inactive placebo ...
There was an 85% reduction in ACTH and a corresponding 96% reduction in
their cortisol-like hormone"
-
Pharmacologic management of Cushing syndrome : new targets for therapy -
Treat Endocrinol. 2005;4(2):87-94 -
"Interesting new avenues at the pituitary level
involve the potential use of thiazolidinedione compounds, such as
rosiglitazone"
-
Effect of protracted treatment with rosiglitazone, a PPARgamma agonist, in
patients with Cushing's disease - Clin Endocrinol (Oxf). 2006
Feb;64(2):219-24 - "Although effective in a subset
of patients, protracted rosiglitazone administration did not consistently
restrain ACTH and cortisol secretion in patients with Cushing's disease.
Further investigations are needed to fully define the therapeutic potential
of PPARgamma agonists in this disorder"
-
Effects of chronic administration of PPAR-gamma ligand rosiglitazone in
Cushing's disease - Eur J Endocrinol. 2004 Aug;151(2):173-8 -
"The administration of rosiglitazone seems able to
normalize cortisol secretion in some patients with CD, at least for short
periods"
-
Reduced production rates of testosterone and dihydrotestosterone in healthy
men treated with rosiglitazone
- Metabolism. 2003 Feb;52(2):230-2 - "Production
rates of cortisol were unchanged ... a clinically relevant dose of at least
one thiazolidindione, rosiglitazone, impedes the production of testosterone
in man"
-
Caution Urged With Diabetes Drugs - WebMD, 12/8/03 -
"in some people, Actos and Avandia may cause fluid retention, a condition
known as edema, and swelling of the feet. Edema is also a classic symptom of
congestive heart failure"
- Diabetes
Pill Helps Early Alzheimer's Disease - WebMD, 7/20/04 -
"the diabetes pill Avandia may improve memory and
thinking in people with early Alzheimer's disease"
-
Hormone Therapy May Need to be Used Cautiously in Patients Taking
Rosiglitazone - Doctor's Guide, 9/19/03 -
"rosiglitazone reduced glucose levels from a mean of
9.15 to 7.5 mM/L; (P=0.013), insulin from 11.7 to 8.8 mU/L (P=0.026),
haemoglobin A1c from 8.0% to 6.9% (P=0.001), triglycerides from 2.3 to 1.8
mM/L (P=0.009), systolic BP from 130 to 117 mm Hg (P=0.02), diastolic BP
from 72 to 67 mm"
-
Rosiglitazone May Improve Small Artery Elasticity in Patients With Diabetes
- Doctor's Guide, 8/19/03 -
"Systolic blood pressure decreased from 144 to 124
mmHg, and diastolic blood pressure decreased from 80 to 68 mmHg"
-
Rosiglitazone Improves Cholesterol Profile in Patients with Type 2 diabetes
- Doctor's Guide, 4/4/03 -
"Rosiglitazone increases high-density lipoprotein
cholesterol (HDLC) levels and improves the ratio of HDLC to total
cholesterol in patients with type 2 diabetes ... mean HDLC levels increased
15%, from 45.3 to 51.9 mg/dL"
-
Avandia (Rosiglitazone) Lowers Markers for Cardiovascular Inflammation in
Diabetic Patients - Doctor's Guide, 6/17/02 -
"rosiglitazone, a widely used insulin sensitizer,
has a profound inhibitory effect on oxygen free radicals ... At week 6,
blood glucose concentration decreased from 157+/-16 to 127+/-9 mg/dL and
insulin concentration fell from 32.6+/-4.6 to 16.1 ... Rosiglitazone
treatment also reduced plasma MCP-1 (75 percent of the basal level; p<0.05)
and CRP (70 percent of basal; p<0.05)"
- Avandia Positively
Impacts On Factors Linked With Insulin Resistance - Doctor's Guide,
9/18/00 - "Increased deposits of fat around the
internal organs and in the liver are commonly associated with insulin
resistance and are found in many type 2 diabetes patients ... Avandia helps
prevent accumulation of fat around the internal organs and significantly
reduces hepatic fat"
- Avandia (Rosiglitazone
Maleate) Effective In Long-Term Blood Sugar Control In Type 2 Diabetes -
Doctor's Guide, 6/21/00 -
"the researchers noticed that improvements in blood
sugar control seen with Avandia were associated with an increase in
high-density lipoproteins (HDL)-cholesterol, and an initial increase in
low-density lipoproteins (LDL)-cholesterol, returning to baseline overtime"
- Avandia Reduces Insulin
Resistance, Lowers Blood Sugar - Doctor's Guide, 6/15/99 - "In patients
given Avandia monotherapy, insulin resistance decreased by an average of 16
and 25 percent and the estimate of beta-cell function increased by an
average of 50 and 60 percent for 4 and 8 mg/day, respectively"
- See Avandia at
OffshoreRx1.comor
SuperSaverMeds.com but check with your doctor first.
- Mirtazapine Regulates
Stress Hormones, Improves Sleep In Depressed Patients
- Doctor's Guide, 8/8/01 -
"Mirtazipine
might be the best option for depressed patients with sleep disturbance and
irregularities in stress hormone function ... Depression is often
accompanied by sleep disturbance -- subjective and objective -- as well as
[hypothalamic-pituitary-adrenal] HPA-axis dysregulation ... Mirtazapine is a
treatment that [profoundly affects] the HPA-axis within hours and promotes
sleep within days ... They tested the 24-hour urinary free cortisol (UFC)
levels of 16 healthy men and 20 men and women with major depression ...
mirtazipne significantly reduced UFC concentrations, which is often elevated
in depressed patients"
-
Cortisol - Keeping a Dangerous Hormone in Check - Life Extension
Magazine, 7/04 -
"daily cortisol production increased by 54% from a
group of 21- to 30-year-old men to a group of men over 70 ...
Phosphatidylserine, DHEA, and ginkgo biloba all have been shown to reduce
the amount of cortisol produced during stressful events, and these stress
fighters can help retard the negative consequences of this hormone" -
See
iHerb
phosphatidylserine products.
- The Role of
Cortisol and Depression: Exploring New Opportunities for Treatments -
Psychiatric Times, 5/04 -
"Although glucocorticoid production is essential for
survival, overproduction is associated with a significant disruption of
cellular functioning, which, in turn, leads to widespread physiological
dysfunction ... Cortisol, a glucocorticoid released from the adrenal cortex,
is the end product of the HPA axis ... The physiological function of DHEA
and its sulphated metabolite (DHEA-S) is unclear, but these circulating
corticosteroids have been shown to possess antiglucocorticoid properties,
and high cortisol/DHEA ratios are reported to be associated with persistent
depression"
-
Why Are So Many Women Depressed? - Scientific America Women's Health: A
Life Long Guide, Summer 1998 (see the subtopic "Stress and Cortisol") -
"It is unclear whether depression is a cause or a
consequence of elevated cortisol levels, but the two are undoubtedly
related."
-
Wilson's
Reverse T3 Dominance Syndrome - knoxintegrativemed.com -
"However, when a person experiences prolonged
stress, the adrenal glands respond by manufacturing a large amount of
cortisol. Cortisol inhibits the conversion of T4 to T3 and favors the
conversion of T4 to RT3. If stress is prolonged, a condition called Reverse
T3 Dominance occurs and persists even after the stress passes and cortisol
levels fall. Apparently, RT3 itself acts like cortisol and blocks the
conversion of T4 to T3"
-
Wilson's Syndrome - providentmedical.com -
"We know that elevated amounts of cortisol, the
major stress hormone, can block 5 prime deiodinase, keeping T4 from being
converted to T3. This results in most of the T4 being converted into
reverse T3, which then needs the available 5 prime deiodinase to be
converted into T2."
- Low-Dose DHEA
Increases Androgen, Estrogen Levels in Menopause
- Medscape, 12/12/03 -
"Cortisol F plasma levels progressively decreased
throughout the study." - See
iHerb
DHEA products.
-
A diet fortified with L-lysine and L-arginine reduces plasma cortisol and
blocks anxiogenic response to transportation in pigs
- Nutr Neurosci. 2003 Oct;6(5):283-9
-
Fish oil prevents the adrenal activation elicited by mental stress in
healthy men - Diabetes Metab. 2003 Jun;29(3):289-295 -
"In control conditions, mental stress significantly
increased heart rate, mean blood pressure, and energy expenditure. It
increased plasma epinephrine from 60.9 +/- 6.2 to 89.3 +/- 16.1 pg/ml
(p<0.05), plasma cortisol from 291 +/- 32 to 372 +/- 37 micromol/l ... After
3 weeks of a diet supplemented with
n-3 fatty acids, the stimulation by
mental stress of plasma epinephrine, cortisol, energy expenditure, and
plasma non esterified fatty acids concentrations, were all significantly
blunted ... Supplementation with n-3 fatty acids inhibits the adrenal
activation elicited by a mental stress" - See Mega Twin EPA at Amazon.com.
-
Disappointing Data Confound Claims For DHEA Effectiveness [against
Alzheimer's] - Psychiatric News, 6/6/03 -
"DHEA has been reported
to reduce cortisol, the so-called "stress
hormone," which in response to stress is released in large quantities that
have been linked to neuronal stress and damage" - Does anyone detect
bias in that title? I don't know if DHEA helps Alzheimer's or not but I
feel the title should have been something like "Alzheimer's Shows Trend
Toward Improvement with DHEA at 3 Months". Their attitude seems to be that
nothing works except what we write prescriptions for. The way I understand
it, Alzheimer's usually gets worse, not better and
cholinesterase inhibitors slow the
disease, they don't reverse it and three months is a short time to determine
if it is working. For example, see the following in the same issue of
Clinical Psychiatry News. See
iHerb
DHEA products. - Ben
-
Light Sleeper, Heavy Gainer - HealthDay, 2/14/03 -
"Sleep deprivation can increase production of
cortisol, a stress hormone that stimulates
the appetite"
-
Stress, Cortisol and Health - Supplement Watch Newsletter, 10/02 -
"several lines of evidence have converged to
solidify the concept that stress makes us fat (because of
cortisol), thins our bones (because of cortisol), shrinks our brains
(because of cortisol), suppresses our immune system (because of cortisol),
saps our energy levels (because of cortisol), and kills our sex drive
(because of cortisol) ... Take a daily multivitamin/multi-mineral supplement
- because
calcium,
magnesium,
vitamin C and
B-complex vitamins are needed for a proper
stress response ... Chief among the supplements with documented
cortisol-controlling effects are Phosphatidylserine,
Beta-sitosterol,
Magnolia bark,
Theanine,
Epimedium,
Ashwagandha and
Passionflower"
-
Phosphatidylserine (PS) The Essential Brain Nutrient - Life Extension
Magazine, 9/02 -
"Among its list of functions,
phosphatidylserine stimulates the release of
dopamine (a mood regulator that also control
physical sensations, and movement), increases the production of
acetylcholine (necessary for learning and memory), enhances brain glucose
metabolism (the fuel used for brain activity), reduces
cortisol levels (a stress hormone), and
boosts the activity of nerve growth factor (NGF), which oversees the health
of cholinergic neurons"
- A Supplement to Prevent
Alzheimer’s - Dr. Weil, 8/20/02 -
"In theory,
PS works by strengthening cell membranes thus
protecting them and their contents from damage, particularly from the stress
hormone cortisol"
-
Testosterone Deficiency & Depression, Does DHEA Raise the Levels of
Bioavailable Testosterone in Men? - Life Extension Magazine, 8/02 -
"We know that as cortisol rises, testosterone levels
tend to drop"
-
Hypercortisolemia Cited in Link Between Depression and Cardiovascular
Disorders - Doctor's Guide, 4/9/02 -
"Depressed patients who are also hypercortisolemic
appear to have resistance to insulin and increased
visceral fat, possibly accounting for a link between major depression
and cardiovascular disorders"
-
Physical and Psychological Effects of Stress
- MedicineNet.com, 2/02 -
"Under excessive stress, we tend to produce
cortisol, the classic anti-stress hormone produced by our body, perhaps to
conserve energy. However the side-effect here is sexual dysfunction and
infertility as cortisol also inhibits production of the hormones essential
for sexual"
- Errant Enzyme
Causes Big Bellies - WebMD, 12/11/01 - "They
looked at an enzyme called
11-beta hydroxysteroid dehydrogenase type 1.
This enzyme is able to increase the level of cortisol in fat cells without
raising the level of cortisol in the blood"
-
Single enzyme to blame for potbellies: study - MSNBC, 12/6/01 -
"What they found was that a single enzyme in fat
cells that raises levels of cortisol — the “fight or flight” stress hormone
— triggers fat accumulation around the belly and its associated ill effects
... The researchers were drawn to the role of cortisol because patients with
a rare illness known as Cushing syndrome — who have too much of the steroid
hormone in their blood — develop severe obesity concentrated around their
middles and become diabetic ... Since overweight people without Cushing
syndrome typically don’t have too much cortisol in their bloodstreams, Flier
hypothesized that they may be producing high cortisol levels solely in their
fat cells — possibly because the enzyme HSD-1, which makes cortisol from an
inactive molecule, is overactive ... The level of cortisol in their stomach
fat tissue was 15 percent to 30 percent higher than in their non-engineered
counterparts"
- Note: The way I read this article, the final culprit is still the cortisol
and there are ways to reduce cortisol now.
-
Retinoic acid prevents experimental Cushing syndrome - J Clin Invest,
October 2001, Volume 108, Number 8, 1123-1131 -
"This glucocorticoid excess produces abnormal fat
deposition, adrenal hyperplasia, thinning of the skin, hypertension, and
psychological disturbances"
-
Sleep Deprivation May Trigger Insulin Resistance - Clinical Psychiatry
News, 10/01 -
"sleep deprivation leads to the release of tumor
necrosis factor-, which triggers
cortisol release, and that, in turn, causes
insulin resistance"
-
Researchers Explore New Meds for Mood Disorders - Clinical Psychiatry
News, 10/01 -
"Another approach being developed for patients with
high levels of circulating cortisol involves the abortion pill
mifepristone ... The
findings, to be published this month in the Journal of Clinical
Psychopharmacology, suggest that a rapid antidepressant response
(approximately 7 days) may occur in some patients"
-
Researchers Hopeful Antidepressant Augmentation Will Improve Remission -
Clinical Psychiatry News, 9/01 -
"In psychotic depression, a corticosteroid
antagonist looks most promising.
Mifepristone, which is used
to induce abortions but was originally designed as treatment for Cushing's
disease, has achieved rapid reversal of symptoms in some 30 psychotically
depressed patients, ostensibly by blocking cortisol receptors. The drug is
now being investigated in a large double-blind trial, he said"
- Two studies implying that cortisol is the cause, not the result of
depression:
-
Hair Cortisol Reveals
Stress, Predicts CVD in Seniors - Medscape, 4/23/13 -
"We found a 2.7-times increased risk of cardiovascular
disease in our participants in the highest hair cortisol quartile compared to
participants in the lowest quartile"
-
Cortisone can increase risk of acute pancreatitis - Science Daily, 2/25/13 -
"people treated with cortisone in tablet form ran a 70
per cent higher risk of developing acute pancreatitis"
-
Medical
Treatment of Cushing's Disease - J Clin Endocrinol Metab. 2013 Jan 23 -
"Medical therapy for CD can be classified into
pituitary-directed, adrenal-blocking, and glucocorticoid receptor-antagonizing
drugs. Recent studies demonstrate that somatostatin receptor subtype 5 (sst(5))
and dopamine receptor subtype 2 (D(2)) are frequently (co-)expressed by
corticotroph adenomas. Pituitary-directed therapy with pasireotide and
cabergoline, targeting sst(5) and D(2), respectively, is successful in
approximately 25-30% of patients. Adrenal-blocking drugs can be effective by
inhibiting steroidogenic enzyme activity. Finally, the glucocorticoid receptor
antagonist mifepristone induces clinical and metabolic improvement in the
majority of patients. Each drug can have important side effects that may impair
long-term treatment. Generally, patients with moderate to severe
hypercortisolism need combination therapy to normalize cortisol production"
-
-
Exercise Can Slow Onset of Alzheimer's Memory Loss: Scientists Identify
Link - Science Daily, 1/25/13 - "the stress
hormone CRF -- or corticotrophin-releasing factor -- may have a
protective effect on the brain from the memory changes brought on by
Alzheimer's disease ... CRF is most associated with producing stress and
is found in high levels in people experiencing some forms of anxiety and
depressive diseases. Normal levels of CRF, however, are beneficial to
the brain, keeping the mental faculties sharp and aiding the survival of
nerve cells. Unsurprisingly then, studies have shown that people with
Alzheimer's disease have a reduced level of CRF ... interrupting the
hormone from binding on to the CRFR1 receptor blocked the improvement of
memory normally promoted by exercise. However, in mice with Alzheimer's
a repeated regime of moderate exercise restored the normal function of
the CRF system allowing its memory enhancing effects. The results are in
line with the idea that regular exercise is a means of improving one's
ability to deal with everyday stress in addition to keeping mental
abilities keen"
|
|
-
FDA Approves
Pasireotide for Cushing's Disease - Medscape, 12/17/12 -
"the US Food and Drug Administration has approved
pasireotide diaspartate injection for the treatment of patients with Cushing's
disease for whom surgery has been unsuccessful or who are not surgical
candidates ... Pasireotide is administered twice daily ... a year-long
double-blind phase 3 trial in which 162 patients were randomly assigned to
receive either 600 or 900 μg subcutaneously delivered pasireotide twice daily
... Twelve (15%) participants in the lower-dose group and 21 (26%) of the
higher-dosage group met the trial's primary endpoint (free urinary cortisol
levels at or below the upper limit of normal with no dose increase at month 6)
... Although those success rates were relatively low, nearly 60% of 103 patients
for whom urinary free cortisol levels were available at baseline and at 6 months
had cortisol reductions of at least 50% ... nearly three quarters of the study
participants experienced hyperglycemia-related adverse events, leading to 6%
leaving the study and 46% requiring a new glucose-lowering medication"
-
Bodybuilding myth debunked: Growth-promoting hormones don't stimulate strength
- Science Daily, 6/14/12 - "anabolic hormones -- long
thought to be essential for building a muscular frame -- do not influence muscle
protein synthesis, the process that leads to bigger muscles ... In the first
study, researchers examined the responses of both male and female participants
to intense leg exercise. Despite a 45-fold difference in testosterone increase,
men and women were able to make new muscle protein at exactly the same rate ...
In the second study ... The men experienced gains in muscle mass that ranged
from virtually nothing to more than 12 pounds, yet their levels of testosterone
and growth hormone after exercise showed no relationship to muscle growth or
strength gain ... Surprisingly, the researchers noted that cortisol --
considered to have the opposite effect of anabolic hormones because it reduces
protein synthesis and breaks down tissue -- was related to the gain in muscle
mass" - Note: That may be true about cortisol but looking at it another
way, cortisol could be an indicator of how much you're working out.
-
Prevalence
and associated factors of subclinical hypercortisolism in patients with
resistant hypertension - J Hypertens. 2012 Mar 7 -
"Patients with resistant hypertension had a relatively high prevalence of
subclinical hypercortisolism, and its presence is associated with several
markers of worse cardiovascular prognosis"
-
Cushing's Drug Benefits
Some, but Has New Adverse Effects - Medscape, 3/7/12 -
"Pasireotide normalized cortisol levels in 20% of
patients with Cushing's disease who participated in a year-long phase 3 trial
... However, the drug also led to hyperglycemia-related adverse events in almost
three quarters of the participants ... The median percentage change from
baseline at 6 months was −47.9% (95% CI, −74.1% to −40.7%) in the low-dose
group, and −47.9− (95% CI, −66.9% to −35.5%) in the 900-μg group. The median
percentage change at 12 months in the low-dose group was −67.6% (95% CI, −72.7%
to −42.4%) and −62.4% (95% CI, −78.7% to −38.5%) in the high-dose group"
-
A unique
on-off switch for hormone production - Science Daily, 2/23/12
-
Does
depression contribute to the aging process? - Science Daily, 2/21/12 -
"telomere length was shorter in the depressed patients,
which confirmed prior findings. Importantly, they also discovered that shorter
telomere length was associated with a low cortisol state in both the depressed
and healthy groups ... stress plays an important role in depression, as telomere
length was especially shortened in patients exhibiting an overly sensitive HPA
axis. This HPA axis response is something which has been linked to chronic
stress and with poor ability to cope with stress" - Note: I'm not sure
if that's correct because depressed people usually have high cortisol, not low
cortisol. I read somewhere that PTSD was associated with low cortisol.
-
New Treatment for Cushing's
Disease - Medscape, 1/23/12 - "Pasireotide is a
somatostatin analogue that attaches to somatostatin receptors in the pituitary
and block the release of adrenocorticotrophin. In clinical trials, pasireotide
was shown to reduce the levels of cortisol in the urine by at least 50% in 41%
of patients treated with a 900-μg dose, and in 34% of patients treated with a
600-μg dose"
-
Depression and chronic stress accelerates aging - Science Daily, 11/9/11 -
"The telomere is the outermost part of the chromosome.
With increasing age, telomeres shorten, and studies have shown that oxidative
stress and inflammation accelerates this shortening. On this basis it has been
suggested that telomere length is a measure of biological aging, and telomere
length has subsequently been linked to age-related diseases, unhealthy
lifestyle, and longevity. The research team shows that shorter telomere length
is associated with both recurrent depression and cortisol levels indicative of
exposure to chronic stress"
-
Stress
hormones may increase cardiovascular risks for shift workers - Science
Daily, 10/3/11 - "working in shifts leads to changes in
long-term cortisol levels, suggesting that the stress hormone cortisol might be
one of the factors contributing to the increased cardiovascular risks of shift
workers ... In this study, researchers collected hair samples from 33 shift
workers and 89 day workers"
-
Overexpression of hepatic 5α-reductase and 11β-hydroxysteroid dehydrogenase type
1 in visceral adipose tissue is associated with hyperinsulinemia in morbidly
obese patients - Metabolism. 2011 Jun 23 -
"11-β-Hydroxysteroid dehydrogenase type 1 (11β-HSD1) converts cortisone to
cortisol, mainly in the liver and visceral adipose tissue (VAT), and has been
implicated in several metabolic disorders. The absence of systemic
hypercortisolism in central obesity could be due to increased inactivation of
cortisol to its tetrahydrometabolites by the hepatic enzymes 5α- and
5β-reductases ... Forty-one patients were recruited (age, 41.8 +/- 10.6 years;
body mass index, 42.1 +/- 6.6 kg/m(2); 71% women). The expression of hepatic 5α-
and 5β-reductases was positively correlated (r = +0.53, P = .004), and their
expression levels were correlated with hepatic 11β-HSD1 expression (r = +0.61, P
< .001 for 5α-reductase and r = +0.50, P < .001 for 5β-reductase). Hepatic
5α-reductase was associated with insulin (r = +0.34, P = .015). Visceral adipose
tissue 11β-HSD1 expression was associated with glucose (r = +0.37, P = .025) and
insulin (r = +0.54, P = .002). Our results showed that 5α-reductase and VAT
11β-HSD1 expressions were associated with insulinemia. These findings suggest
that overexpression of 5α-reductase, through a higher inactivation of cortisol
in the liver, could have a protective role in preserving hepatic sensitivity to
insulin. The overexpression of liver reductases in obesity could be an adaptive
response to an increase in cortisol production by the liver and visceral
11β-HSD1 to avoid systemic hypercortisolism"
-
New
method to measure cortisol could lead to better understanding of development of
common diseases - Science Daily, 5/2/11 - "Currently
the standard method to measure cortisol levels is to take a blood or saliva
sample. However, since cortisol is released in a circadian rhythm and with
pulses throughout the day, levels can fluctuate considerably, meaning it is
difficult to estimate an individual's long-term exposure to cortisol through
blood and saliva tests alone ... hair cortisol levels correlated positively with
waist to hip ratio (r=0.425, p=0.003) and waist circumference (r=0.392,
p=0.007), meaning people with higher exposure to cortisol showed higher
abdominal obesity ... measuring the amount of cortisol in hair can potentially
be used to monitor a person's long-term exposure to cortisol"
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Caffeinated
Coffee Does Not Acutely Affect Energy Intake, Appetite, or Inflammation but
Prevents Serum Cortisol Concentrations from Falling in Healthy Men - J Nutr.
2011 Feb 23 - "Our aim in this crossover study was to
investigate the acute effects of caffeinated and decaffeinated coffee
consumption on appetite feelings, energy intake, and appetite-, inflammation-,
stress-, and glucose metabolism-related markers. Sixteen healthy men (age range,
21-39 y; BMI range, 19.7-28.6 kg/m(2)) received in a random order on 3 separate
occasions a standard breakfast snack with 200 mL of either caffeinated coffee (3
mg caffeine/kg body weight), decaffeinated coffee, or water (control). Before
intervention (-15 min) and at standard time points following breakfast
consumption (0, 15, 30, 60, 90, 120, 150, and 180 min), participants recorded
their appetite feelings and we collected blood samples for measurements of
circulating glucose, insulin, cortisol, and appetite- and inflammation-related
markers. At 180 min, participants consumed a meal ad libitum. The
appetite-related ratings, the appetite plasma hormonal responses as well as the
plasma glucose, serum insulin, and plasma and serum inflammatory marker
responses did not show an overall intervention effect or a time x intervention
interaction. Ad libitum energy intake did not differ among the 3 interventions.
However, a significant intervention effect (P = 0.04) and a time x intervention
interaction (P-interaction = 0.02) were found for serum cortisol; cortisol
concentrations were significantly higher following the caffeinated coffee
intervention, compared to control, at 60 min and thereafter. In conclusion, the
usually consumed amount of caffeinated coffee does not have short-term effects
on appetite, energy intake, glucose metabolism, and inflammatory markers, but it
increases circulating cortisol concentrations in healthy men"
-
Association
of Diurnal Patterns in Salivary Cortisol with All-Cause and Cardiovascular
Mortality: Findings from the Whitehall II Study - J Clin Endocrinol Metab.
2011 Feb 23 - "We assessed all-cause, cardiovascular,
and noncardiovascular death. Results: There were 139 deaths, 32 of which were
deaths due to cardiovascular disease, during a mean follow-up period of 6.1 yr.
Flatter slopes in cortisol decline across the day were associated with increased
risk of all-cause mortality (hazard ratio for 1 sd reduction in slope steepness
1.30; 95% confidence interval (CI) = 1.09-1.55). This excess mortality risk was
mainly driven by an increased risk of cardiovascular deaths (hazard ratio =
1.87; 95% confidence interval = 1.32-2.64). The association with cardiovascular
deaths was independent of a wide range of covariates measured at the time of
cortisol assessment. There was no association between morning cortisol, the
cortisol awakening response, and mortality outcomes. Conclusions: These findings
demonstrate, for the first time, the relationship between a flatter slope in
cortisol levels across the day and an increased risk of cardiovascular disease
mortality in a nonclinical population"
-
Simple
spit and blood tests might detect burnout before it happens - Science Daily,
2/21/11 - "In addition to professional and personal
suffering, burnout puts distressed workers at further risk of physical and
psychological problems if ignored ... We hypothesized that healthy workers with
chronic stress and with mild burnout symptoms would have worse physiological
dysregulations and lower cortisol levels -- a profile consistent with burnout
... Cortisol is a stress hormone involved in our bodies stress response and
naturally as part of our body's daily rhythm. Cortisol levels are often high in
people suffering from depression, while it tends to be low in cases of burnout.
Too much cortisol can be as bad as too little when it comes to both mental and
physical health ... Critically, people with burnout are often treated with
anti-depressant medications that lower cortisol levels. If cortisol is already
lower than it should be, this course of treatment could represent a therapeutic
mistake. "The use of an allostatic load index gives researchers and clinicians a
window to see how chronic stress is straining the person"
-
Cortisol,
dehydroepiandrosterone sulphate, their ratio and hypertension: evidence of
associations in male veterans from the Vietnam Experience Study - J Hum
Hypertens. 2011 Feb 10 - "Cortisol and the
cortisol:DHEAS ratio were positively associated with hypertension (P<0.001),
whereas DHEAS was negatively associated; the latter relationship was attenuated
to non-significance (P=0.06) in models that adjusted for age, sociodemographics,
place of service, health behaviours and BMI. The present analyses provide
confirmation of a positive association between cortisol and the cortisol:DHEAS
ratio and population hypertension"
-
Behavioral problems linked to cortisol levels: Study finds intervention needed
as soon as behavioral problems appear - Science Daily, 2/9/11 -
"Some youngsters with behavioral problems have
abnormally high levels of cortisol, while others with identical problems have
abnormally low levels ... Cortisol levels were abnormally high around the time
problem behaviours began, but abnormally low when they had been present for a
long time ... Problem behaviours were classified as either "internalizing"
(depression and anxiety) or "externalizing" (aggression, attentional problems)
... Youngsters who developed depression-like symptoms or anxiety problems in
adolescence had high levels of cortisol. However, those who developed symptoms
earlier had abnormally low cortisol levels. The conclusion? Cortisol levels go
up when individuals are first stressed by depression or anxiety, but then
decline again if they experience stress for an extended period"
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Why Women Feel Colder Than Men - CBS Chicago, 2/8/11 -
"Women conserve more heat around their core organs,
which means less heat circulates throughout the rest of their body ... It can
often lead to a tug-of-war over the thermostat. That fight can get worse at
night, when our bodies produce less cortisol ... cortisol is a very powerful
hormone. It’s your fight hormone. So it keeps you warm, gets your adrenaline
roaring and helps with body warming"
-
Persistent organic pollutants affect the stress hormone cortisol - Science
Daily, 12/28/10 - "persistent organic pollutants (POPs),
such as PCB and mixtures of different POPs, affect the way the adrenal cortex
functions and thereby the synthesis of the stress hormone cortisol ... altered
cortisol balance during early life may lead to a predisposition to develop
several diseases in adulthood, such as diabetes and cardiovascular diseases"
-
Promising drug candidate reverses age-related memory loss in mice - Science
Daily, 10/12/10 - "Such memory loss has been linked with
high levels of 'stress' steroid hormones known as glucocorticoids which have a
deleterious effect on the part of the brain that helps us to remember. An enzyme
called 11beta-HSD1 is involved in making these hormones and has been shown to be
more active in the brain during aging ... We found that life-long partial
deficiency of 11beta-HSD1 prevented memory decline with aging. But we were very
surprised to find that the blocking compound works quickly over a few days to
improve memory in old mice suggesting it might be a good treatment for the
already elderly ... We previously showed that carbenoxolone, an old drug that
blocks multiple enzymes including 11beta-HSD1, improves memory in healthy
elderly men and in patients with type 2 diabetes after just a month of
treatment, so we are optimistic that our new compounds will be effective in
humans. The next step is to conduct further studies with our preclinical
candidate to prove that the compound is safe to take into clinical trials,
hopefully within a year"
-
High
stress hormone levels linked to increased cardiovascular mortality - Science
Daily, 9/9/10 - "urinary cortisol did not increase the
risk of non-cardiovascular mortality but did increase cardiovascular mortality
risk. The third of the subjects with the highest urinary cortisol had a
five-fold increased risk of dying of cardiovascular disease"
-
Chronic
drinking increases levels of stress hormones, leading to neurotoxicity -
Science Daily, 9/7/10 - "Both drinking and withdrawal
from chronic drinking can raise circulating glucocorticoid levels, known as
cortisol in humans and corticosterone in rodents. Prolonged and high
concentrations of glucocorticoids can have damaging effects on neuronal function
and cognition"
-
Hair
provides proof of the link between chronic stress and heart attack - Science
Daily, 9/3/10 - "Cortisol is considered to be a stress
hormone. Its secretion is increased during times of stress. Traditionally it's
been measured in serum, urine and saliva, but that only shows stress at the time
of measurement, not over longer periods of time. Cortisol is also captured in
the hair shaft"
-
Urinary
Cortisol and Six-Year Risk of All-Cause and Cardiovascular Mortality - J
Clin Endocrinol Metab. 2010 Aug 25 - "During a mean
follow-up of 5.7 (SD = 1.2) yr, 183 persons died, of whom 41 died from
cardiovascular disease. After adjustment for sociodemographics, health
indicators, and baseline cardiovascular disease, urinary cortisol did not
increase the risk of noncardiovascular mortality, but it did increase
cardiovascular mortality risk. Persons in the highest tertile of urinary
cortisol had a five times increased risk of dying of cardiovascular disease
(hazard ratio = 5.00; 95% confidence interval = 2.02-12.37). This effect was
found to be consistent across persons with and without cardiovascular disease at
baseline"
-
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"
-
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"
-
Link
between depression, abdominal obesity confirmed by new study - Science
Daily, 6/9/10 - "cortisol, a stress hormone, is related
to depression and abdominal obesity. "So, there is reason to suspect that people
who are depressed would have higher levels of abdominal obesity versus other
parts of the body because of elevated cortisol,""
-
Stress
hormone, depression trigger obesity in girls, study finds - Science Daily,
2/23/10
-
Stress
peptide and receptor may have role in diabetes - Science Daily, 1/23/10
-
Partial
restoration of GH responsiveness to ghrelin in Cushing's disease after 6 months
of ketoconazole treatment: comparison with GHRP-6 and GHRH - Eur J
Endocrinol. 2009 Aug 20
-
Stress Raises Belly Fat, Heart Risks - WebMD, 8/6/09 -
"Even compared to other monkeys with the same body mass
index and weight, CT scans showed that the stressed monkeys had a great deal
more belly fat. And when the researchers looked at the animals' arteries, they
found plaque clogging the arteries of the stressed monkeys ... it's not how much
fat you have, but where it is located ... Over time, high cortisol levels cause
belly fat to accumulate. It also makes individual fat cells get larger ... When
you have lots more fat in visceral fat cells and all the characteristics of the
metabolic syndrome, each of these things promotes atherosclerosis"
-
Symptoms
Of Depression In Obese Children Linked To Elevated Cortisol - Science Daily,
6/11/09 - "There is evidence in adults that abnormal
regulation of cortisol plays a role in both obesity and depression ... Cortisol
levels in the saliva in the afternoon and evening correlated positively with
symptoms of depression ... The more depressive symptoms that subjects reported,
the higher the cortisol levels at those times"
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