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Recent Longevity News for the seven days ending 1/27/10.  You should consult your doctor if you are taking any medications.

Human growth hormone: Not a life extender after all? - Science Daily, 1/26/10 - "People profoundly deficient in human growth hormone (HGH) due to a genetic mutation appear to live just as long as people who make normal amounts of the hormone, a new study shows"

Green Tea Extract May Treat Uterine Fibroids - WebMD, 1/26/10 - "In test tube studies with rodent fibroid cells, cells treated with EGCG grew more slowly and were smaller after 48-72 hours. EGCG also prompted fibroid cell death. The researchers write that it is "highly encouraging that, in our work, a relatively modest dose of EGCG ... that was delivered in drinking water was successful in inducing a dramatic and sustained reduction in fibroid tumor size up to eight weeks after treatment." ... The researchers say their study suggests that EGCG "might be particularly useful for long-term use in women with a low fibroid tumor burden to arrest tumor progression and avoid the development of severe symptoms that necessitate major surgery" - See green tea extract at Amazon.com.

Physical activity associated with healthier aging: Links between exercise and cognitive function, bone density and overall health - Science Daily, 1/25/10 - "After one year, women in both resistance training groups significantly improved their scores on tests of selective attention (maintaining mental focus) and conflict resolution. The program simultaneously improved muscular function in the women ... Moderate or high physical activity appears to be associated with a lower the risk of developing cognitive impairment in older adults after a two-year period ... The incidence of new cognitive impairment among participants with no, moderate and high activity at baseline was 13.9 percent, 6.7 percent and 5.1 percent, respectively," the authors write ... Fractures due to falls were twice as common in the controls vs. the exercise group"

Pomegranate oil-seaweed mix may improve liver health and waist size - Nutra USA, 1/25/10 - "Results showed that body weight was significantly reduced by an average of 5.5 kg in people in the NAFLD group and 4.9 kg in the normal liver function group. Women in the placebo group lost an average of 1.4 kilos. In addition, women with NAFLD experienced improvements in waist circumference, body and liver fat content, liver enzymes, and serum triglycerides" - [Abstract] - 5.5 kg is 12.1 pounds - See FucoThin at Amazon.com

Cutting Salt as Good as Quitting Smoking - WebMD, 1/22/10 - "Cutting U.S. salt intake by just half a teaspoon a day would prevent up to 92,000 deaths, 99,000 heart attacks, and 66,000 strokes -- a benefit as big as smoking cessation"

Vitamin D May Lower Colon Cancer Risk - WebMD, 1/22/10 - "They discovered that those with the highest blood levels of vitamin D had a nearly 40% decrease in colorectal cancer risk than those with the lowest levels" - [Science Daily] - See vitamin D at Amazon.com.

Red Yeast Rice Comparable to Pravastatin for Statin-Intolerant Patients - Medscape, 1/21/10 - "After 12 weeks of treatment, red yeast rice reduced LDL-cholesterol levels 30% from baseline, from 181 mg/dL to 126 mg/dL, while pravastatin reduced LDL-cholesterol levels 27%, a nonstatistical difference between treatments. Similarly, there were no significant differences observed in changes in total cholesterol, triglycerides, or HDL-cholesterol levels ... Regarding the primary end point, the incidence of treatment discontinuation because of myalgia, both red yeast rice and pravastatin were equivalent. In the red-yeast-rice arm, one patient of 21 (5%) withdrew because of muscle pain, while two patients of 22 (9%) withdrew in the pravastatin arm. Also, there were no reported differences in the mean pain severity scores with the two treatments" - See red yeast rice at Amazon.com.

Chemical May Be Linked to Thyroid Disease - WebMD, 1/21/10 - "A chemical compound used to make non-stick cookware, food wrappers, and water-resistant coatings for carpets and fabrics has been linked to an increased risk for thyroid disease ... Perfluorooctanoic acid (PFOA) ... participants who had the highest levels of PFOA in their blood also had the highest self-reported incidence of thyroid disease"

Promising probiotic treatment for inflammatory bowel disease - Science Daily, 1/21/10 - "Several recent studies have identified butyric acid as a potential therapeutic agent for IBD. Some gut bacteria produce butyric acid naturally in the intestines, but in IBD patients some of these strains are heavily depleted. Trials in mice have shown that injecting one such strain Faecalibacterium prausnitzii into the digestive tract is effective at restoring normal levels of gut bacteria and treating the symptoms of IBD. In addition, novel identified butyrate-producing strains, such as Butyricicoccus pullicaecorum, have been shown to exert similar effects"

Retail meat linked to urinary tract infections: Strong new evidence - Science Daily, 1/20/10 - "Chicken sold in supermarkets, restaurants and other outlets may place young women at risk of urinary tract infections (UTI) ... E. coli (Escherichia coli) bacteria originating from these food sources can cause common urinary tract infections"

Blueberry juice improves memory in older adults - Science Daily, 1/20/10 - "In the study, one group of volunteers in their 70s with early memory decline drank the equivalent of 2-2 l/2 cups of a commercially available blueberry juice every day for two months. A control group drank a beverage without blueberry juice. The blueberry juice group showed significant improvement on learning and memory tests" - See blueberry extract at Amazon.com.

High Omega-3 Levels May Slow Aging in Heart Patients - WebMD, 1/19/10 - "Heart disease patients with the highest blood levels of omega-3 fatty acids appear to age more slowly than those with the lowest blood levels ... Farzaneh-Far and his colleagues looked at a marker of biological age -- the rate of shortening of telomeres, structures at the end of a chromosome involved in its replication and stability. As the telomeres shorten over time, the eventual result is cell death, scientists believe ... In the new study, the higher the blood levels of omega-3 fatty acids in the patients evaluated, the slower the rate of telomere shortening ... patients with the lowest blood levels of omega-3 fatty acids exhibited a rate of telomere shortening 2.6 times faster than patients with the highest levels of omega-3 fatty acids" - [Science Daily] - See Mega Twin EPA at Amazon.com and Jarrow Max DHA 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):

Intakes of Vitamin A, C, and E, and beta-Carotene Are Associated With Risk of Cervical Cancer: A Case-Control Study in Korea - Nutr Cancer. 2010;62(2):181-9 - "Those patients in the highest quartiles of dietary vitamin A, beta -carotene, and vitamin C intakes had statistically significantly lower cervical cancer risks than those in the lowest quartiles for vitamin A, beta -carotene, and vitamin C: odds ratio (OR) = 0.36 [95% confidence interval (CI) = 0.19-0.69), OR = 0.48 (CI = 0.26-0.88), and OR = 0.36 (CI = 0.18-0.69), respectively. Total intakes of vitamins A, C, and E were strongly inversely associated with cervical cancer risk: OR = 0.35 (CI = 0.19-0.65), OR = 0.35 (CI = 0.19-0.66), and OR = 0.53 (CI = 0.28-0.99), respectively. The findings support a role for increased antioxidant vitamin intake in decreasing the risk of cervical cancer"

The effects of Xanthigen in the weight management of obese premenopausal women with non-alcoholic fatty liver disease and normal liver fat - Diabetes Obes Metab. 2010 Jan;12(1):72-81 - "Xanthigen-600/2.4 mg (300 mg PSO + 300 mg brown seaweed extract containing 2.4 mg fucoxanthin) resulted in statistically significant reduction of body weight (5.5 +/- 1.4 kg NAFLD group and 4.9 +/- 1.2 kg NLF group, p < 0.05), waist circumference (NAFLD group only), body (3.5 +/- 1.9 kg NAFLD group, p < 0.001; 3.6 +/- 0.7 kg NLF group, p < 0.05) and liver fat content, liver enzymes (NAFLD group only), serum triglycerides and C-reactive protein. Weight loss and reduction in body and liver fat content occurred earlier in patients with NLF than in patients with NAFLD. Fucoxanthin (> 2.4 mg) and Xanthigen-400/1.6 mg (200 mg PSO + 200 mg brown seaweed extract containing 1.6 mg fucoxanthin) significantly increased REE in NAFLD subjects compared to placebo. CONCLUSIONS: Xanthigen promoted weight loss, reduced body and liver fat content, and improved liver function tests in obese non-diabetic women. Xanthigen and Fucoxanthin also increased REE. This product may be considered a promising food supplement in the management of obesity" - See FucoThin at Amazon.com

Fat redistribution preferentially reflects the anti-inflammatory benefits of pioglitazone treatment - Metabolism. 2010 Jan 19 - "high-sensitivity C-reactive protein (hsCRP) ... Pioglitazone treatment for 12 weeks decreased serum hsCRP levels (0.83 [1.14] to 0.52 [0.82] mg/L, P < .001) and improved glycemic control (fasting glucose, P < .001; glycosylated hemoglobin, P < .001) and lipid profiles (triglyceride, P = .016; high-density lipoprotein cholesterol, P < .001). Between responders and nonresponders to the hsCRP-lowering effect of pioglitazone, there were significant differences in baseline hsCRP levels and changes in the postprandial glucose and the ratio of visceral fat thickness (VFT) to subcutaneous fat thickness (SFT) (P = .004, .011, and .001, respectively). The percentage change in hsCRP levels after treatment was inversely correlated with baseline hsCRP levels (r = -0.497, P < .001) and directly correlated with the change in postprandial glucose (r = 0.251, P = .021), VFT (r = 0.246, P = .030), and VFT/SFT ratio (r = 0.276, P = .015). Logistic regression analysis revealed that the hsCRP-lowering effect of pioglitazone was affected by baseline hsCRP levels (odds ratio [OR] = 7.929, P = .007) as well as changes in postprandial 2-hour glucose (OR = 0.716, P = .025) and VFT/SFT ratio (OR = 0.055, P = .009). In conclusion, treatment with pioglitazone produced an anti-inflammatory effect, decreasing serum hsCRP levels; and a decrease in the VFT/SFT ratio was independently and most strongly associated with the hsCRP-decreasing effect. These results suggest that abdominal fat redistribution preferentially reflects the anti-inflammatory benefits of pioglitazone treatment" - See pioglitazone at OffshoreRx1.com.

Conjugated Linoleic Acid Ameliorates Inflammation-Induced Colorectal Cancer in Mice through Activation of PPAR{gamma} - J Nutr. 2010 Jan 20 - "Conjugated linoleic acid (CLA) exerts a protective effect on experimental inflammatory bowel disease and shows promise as a chemopreventive agent against colorectal cancer (CRC) in mice, although the mechanisms by which it exerts its beneficial effects against malignancies in the gut are not completely understood ... Dietary CLA ameliorated disease activity, decreased colitis, and prevented adenocarcinoma formation in the PPARgamma-expressing floxed mice but not in the tissue-specific PPARgamma-null mice. Dietary CLA supplementation significantly decreased the percentages of macrophages in the mesenteric lymph nodes (MLN) regardless of the genotype and increased regulatory T cell numbers in MLN of PPARgamma-expressing, but not in the tissue-specific, PPARgamma-null mice. Colonic tumor necrosis factor-alpha mRNA expression was significantly suppressed in CLA-fed, PPARgamma-expressing mice. This study suggests CLA ameliorates colitis and prevents tumor formation in part through a PPARgamma-dependent mechanism" - See conjugated linoleic acid at Amazon.com.

Dietary Anthocyanin-Rich Bilberry Extract Ameliorates Hyperglycemia and Insulin Sensitivity via Activation of AMP-Activated Protein Kinase in Diabetic Mice - J Nutr. 2010 Jan 20 - "Blueberries or bilberries contain large amounts of anthocyanins, making them one of the richest sources of dietary anthocyanin ... bilberry extract (BBE) ... Dietary BBE significantly reduced the blood glucose concentration and enhanced insulin sensitivity ... These findings provide a biochemical basis for the use of bilberry fruits and have important implications for the prevention and treatment of type 2 diabetes via activation of AMPK" - See bilberry at Amazon.com.

Dietary Flavonol Intake May Lower Stroke Risk in Men and Women - J Nutr. 2010 Jan 20 - "A high intake of flavonols compared with a low intake was inversely associated with nonfatal and fatal stroke with a pooled relative risk of 0.80"

Urinary melatonin and risk of incident hypertension among young women J Hypertens. 2010 Jan 19 - "During 8 years of follow-up, a total of 125 women developed hypertension. The relative risk for incident hypertension among women in the highest quartile of urinary melatonin (>27.0 ng/mg creatinine) as compared with the lowest quartile (<10.1 ng/mg creatinine) was 0.49 (95% confidence interval 0.28-0.85, P < 0.001). CONCLUSION: First morning melatonin levels are independently and inversely associated with incident hypertension; low melatonin production may be a pathophysiologic factor in the development of hypertension" - See melatonin at Amazon.com.

Association of marine omega-3 fatty acid levels with telomeric aging in patients with coronary heart disease - JAMA. 2010 Jan 20;303(3):250-7 - "Individuals in the lowest quartile of DHA+EPA experienced the fastest rate of telomere shortening (0.13 telomere-to-single-copy gene ratio [T/S] units over 5 years; 95% confidence interval [CI], 0.09-0.17), whereas those in the highest quartile experienced the slowest rate of telomere shortening (0.05 T/S units over 5 years; 95% CI, 0.02-0.08; P < .001 for linear trend across quartiles). Levels of DHA+EPA were associated with less telomere shortening before (unadjusted beta coefficient x 10(-3) = 0.06; 95% CI, 0.02-0.10) and after (adjusted beta coefficient x 10(-3) = 0.05; 95% CI, 0.01-0.08) sequential adjustment for established risk factors and potential confounders. Each 1-SD increase in DHA+EPA levels was associated with a 32% reduction in the odds of telomere shortening (adjusted odds ratio, 0.68; 95% CI, 0.47-0.98)" - See Mega Twin EPA at Amazon.com and Jarrow Max DHA at Amazon.com.

Effect of zinc supplementation on mood states in young women: a pilot study - Eur J Clin Nutr. 2010 Jan 20 - "multivitamins (MVs) ... who took MV and Zn showed a significant reduction in anger-hostility score (P=0.009) and depression-dejection score (P=0.011) in the Profile of Moods State (POMS) and a significant increase in serum Zn concentration (P=0.008), whereas women who took only MV did not"

Association between serum ferritin level and fibromyalgia syndrome - Eur J Clin Nutr. 2010 Jan 20 - "The mean serum ferritin levels in the fibromyalgia (FM) and control groups were 27.3+/-20.9 and 43.8+/-30.8 ng/ml, respectively, and the difference was statistically significant ...having a serum ferritin level <50 ng/ml caused a 6.5-fold increased risk for FMS" - See Feosol Ferrous Sulfate Iron Supplement Therapy, Tablets - 125 ea (Pack of 2) or Ferro-Sequels High Potency Iron Supplement Tablets - 100 ea at Amazon.com.

Association of dietary fat, vegetables and antioxidant micronutrients with skin ageing in Japanese women - Br J Nutr. 2010 Jan 20:1-6 - "The extent of facial wrinkles in the crow's-foot area was determined by observation using the Daniell scale. Each subject's usual diet was determined with the use of a validated FFQ. After controlling for covariates including age, smoking status, BMI and lifetime sun exposure, the results showed that higher intakes of total fat, saturated fat and monounsaturated fat were significantly associated with increased skin elasticity. A higher intake of green and yellow vegetables was significantly associated with a decreased Daniell wrinkling score. Intake of saturated fat was significantly inversely associated with the Daniell wrinkling score after additional adjustment for green and yellow vegetable intake"

Moderate physical activity and breast cancer risk: the effect of menopausal status - Cancer Causes Control. 2010 Jan 19 - "Participating in moderate-intensity physical activity decreased the risk of BC in both pre- and postmenopausal women (OR = 0.96; 95% CI 0.92.-0.99; OR = 0.90; 95% CI 0.86-0.93, respectively) for every 3 h per week of moderate-intensity physical activity. There was a statistically significant modification effect by menopausal status"

Dietary fat and early-onset prostate cancer risk - Br J Nutr. 2010 Jan 19:1-6 - "A nutritional database was used to calculate daily fat intake. A positive, statistically significant risk estimate for the highest v. lowest quintile of intake of total fat, SFA, MUFA and PUFA was observed when adjusted for confounding variables: OR 2.53 (95 % CI 1.72, 3.74), OR 2.49 (95 % CI 1.69, 3.66), OR 2.69 (95 % CI 1.82, 3.96) and OR 2.34 (95 % CI 1.59, 3.46), respectively, with all P for trend < 0.001. In conclusion, there was a positive statistically significant association between prostate cancer risk and energy-adjusted intake of total fat and fat subtypes. These results potentially identify a modifiable risk factor for early-onset prostate cancer"

Impact of cocoa flavanol consumption on blood pressure responsiveness to exercise - Br J Nutr. 2010 Jan 19:1-5 - "randomised to consume single servings of either a high-flavanol (HF, 701 mg) or a low-flavanol (LF, 22 mg) cocoa beverage in a double-blind, cross-over design ... the BP response to exercise (area under BP curve) was attenuated by HF compared with LF. BP increases were 68 % lower for DBP (P = 0.03) and 14 % lower for mean BP (P = 0.05). FMD measurements were higher after taking HF than after taking LF (6.1 (se 0.6) % v. 3.4 (se 0.5) %, P < 0.001). By facilitating vasodilation and attenuating exercise-induced increases in BP, cocoa flavanols may decrease cardiovascular risk and enhance the cardiovascular benefits of moderate intensity exercise in at-risk individuals"

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