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Recent Longevity News for the seven days ending 3/10/10.  You should consult your doctor if you are taking any medications.

Anti-depressants bring higher risk of developing cataracts - Science Daily, 3/8/10 - "patients taking SSRIs were overall 15 per cent more likely to be diagnosed with cataracts or to have cataract surgery"

Vitamin D crucial to activating immune defenses - Science Daily, 3/7/10 - "Vitamin D is crucial to activating our immune defenses and that without sufficient intake of the vitamin, the killer cells of the immune system -- T cells -- will not be able to react to and fight off serious infections in the body" - See vitamin D at Amazon.com.

Ritalin boosts learning by increasing brain plasticity - Science Daily, 3/7/10 - "Ritalin boosts both of these cognitive abilities by increasing the activity of the neurotransmitter dopamine deep inside the brain. Neurotransmitters are the chemical messengers neurons use to communicate with each other. They release the molecule, which then docks onto receptors of other neurons. The research demonstrated that one type of dopamine receptor aids the ability to focus, and another type improves the learning itself"

Low levels of vitamin D linked to muscle fat, decreased strength in young people - Science Daily, 3/6/10 - "A ground-breaking study published in the March 2010 Journal of Clinical Endocrinology and Metabolism found an astonishing 59 per cent of study subjects had too little Vitamin D in their blood. Nearly a quarter of the group had serious deficiencies (less than 20 ng/ml) of this important vitamin. Since Vitamin D insufficiency is linked to increased body fat, decreased muscle strength and a range of disorders, this is a serious health issue ... The study by Dr. Kremer and co-investigator Dr. Vincente Gilsanz, head of musculoskeletal imaging at the Children's Hospital Los Angeles of the University of Southern California, is the first to show a clear link between Vitamin D levels and the accumulation of fat in muscle tissue -- a factor in muscle strength and overall health" - [Nutra USA] -See vitamin D at Amazon.com.

Drinking sugar-sweetened beverages daily linked to diabetes - Science Daily, 3/6/10 - "Using the Coronary Heart Disease (CHD) Policy Model, a well-established computer simulation model of the national population age 35 and older, researchers estimate that the increased consumption of sugar-sweetened beverages between 1990 and 2000 contributed to 130,000 new cases of diabetes, 14,000 new cases of coronary heart disease (CHD), and 50,000 additional life-years burdened by coronary heart disease over the past decade"

Pine bark extract may benefit blood pressure-related kidney health - Nutra USA, 3/5/10 - "55 hypertensive patients to participate in the randomized, controlled study. Subjects were assigned to receive Ramipril [an ACE inhibitor] (10 mg per day), and 29 of these people were randomly selected to also receive Pycnogenol (150 mg per day) ... After six months in the Ramipril-only group the albumin levels decreased by 26 per cent to 64 mg per 24-hour period, while additional Pycnogenol produced levels that averaged 39 mg per 24-hour period, equivalent to a 57 per cent decrease ... Statistically significant decreases in patients’ blood pressure were also observed, with systolic and diastolic blood pressures dropping by more than 30 and 8 per cent, respectively in the Ramipril-only group, and by a further 3 to 6 per cent in the combination group ... Diastolic and systolic blood flow improved by 8 and 12 per cent, in the combination group" - [Abstract] - See Pycnogenol at Amazon.com.

Good Diet May Aid Ovarian Cancer Survival - WebMD, 3/4/10 - "five years, 75% of the women who ate less than one serving a week of yellow vegetables were alive, compared to about 82% of those who had three or more servings of yellow vegetables a week ... When the researchers looked at red meat lovers vs. avoiders, "we found almost a threefold risk of dying for those women who ate four or more servings of red meat a week compared to those who ate less than one serving per week over the 11-year study period"

Red clover may counter depressive symptoms in older women - Nutra USA, 3/4/10 - "by the time you reach 61 tests, there's a 95 percent chance that you'll get a significant result at random. And, let's face it—researchers want to see a significant result, so there's a strong, unintentional bias towards trying different tests until something pops out ... Symptoms of depression and anxiety were reduced by about 80 per cent following 90 days of supplements containing 80 milligrams of red clover isoflavones" - [Abstract] - See Trinovin at Amazon.com and red clover at Amazon.com.

We're so good at medical studies that most of them are wrong - arstechnica.com, 3/3/10 - "we simply have to recognize the problem and communicate it with the public, so that people don't leap to health conclusions each time a new population study gets published. Medical researchers recognize the value of replication, and they don't start writing prescriptions based on the latest gene expression study—they wait for the individual genes to be validated. As we wait for any sort of reform to arrive, caution, and explaining to the public the reasons for this caution, seems like the best we can do"

Hemoglobin A1c outperforms fasting glucose for risk prediction - Science Daily, 3/3/10 - "Measurements of hemoglobin A1c (HbA1c) more accurately identify persons at risk for clinical outcomes than the commonly used measurement of fasting glucose ... people with HbA1c levels between 5.0 to 5.5 percent were identified as being within "normal" range ... With each incremental HbA1c increase, the study found, the incidence of diabetes increased as well; those at a level of 6.5 percent or greater are considered diabetic, and those between 6.0 and 6.5 percent are considered at a "very high risk" (9 times greater than those at the "normal" range) for developing diabetes"

Vitamin D lifts mood during cold weather months, researchers say - Science Daily, 3/3/10 - "A daily dose of vitamin D may just be what people in northern climates need to get through the long winter ... This nutrient lifts mood during cold weather months when days are short and more time is spent indoors ... Vitamin D deficiency continues to be a problem despite the nutrient's widely reported health benefits" - See vitamin D at Amazon.com.

Apple fibres may boost immune health: Study - Nutra USA, 3/3/10 - "fed low-fat diets supplemented with either soluble (pectin, 10 per cent of the diet) or insoluble fibre (cellulose, 5 or 10 per cent of the diet) for six weeks. At the end of this period the mice were challenged with an endotoxin to induce sickness ... Two hours after [entotoxin] injection, the mice fed soluble fibre were only half as sick as the other group, and they recovered 50 per cent sooner. And the differences between the groups continued to be pronounced all the way out to 24 hours" - [Abstract] [Science Daily] - See pectin supplements at Amazon.com.

Omega-3 may boost lung function during sport - Nutra USA, 3/3/10 - "Amateur Iranian wrestlers, and not the Hulk Hogan kind, experienced improvements in numerous measures of lung capacity, including lung volume [forced vital capacity (FVC)] and airflows [forced expiratory volume in one second (FEV1)], and found significant improvements following 12 weeks of supplementation and training ... At the end of the study, improvements in FEV1 of 41 per cent and FVC of 53 per cent, in the omega-3 supplements and training group as well as four other measures, compared to the other groups" - [Abstract] - See Mega Twin EPA at Amazon.com and Jarrow Max DHA at Amazon.com.

Generic Drug for Enlarged Prostate Approved - WebMD, 3/2/10 - "The first generic version of Flomax, a medication to treat the signs and symptoms of an enlarged prostate gland, has won the approval of the FDA"

Coffee associated with reduced risk of hospitalization for heart rhythm disturbances - Science Daily, 3/2/10 - "those who reported drinking four or more cups of coffee each day had an 18 percent lower risk of hospitalization for heart rhythm disturbances. Those who reported drinking one to three cups each day had a 7 percent reduction in risk"

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):

Glycine Propionyl-L-carnitine Modulates Lipid Peroxidation and Nitric Oxide in Human Subjects - Int J Vitam Nutr Res. 2009 May;79(3):131-141 - "Nitric oxide was increased (p<0.05) from pre- to post-intervention with 3 g GPLC (21.34+/-2.27 vs. 29.46+/-3.61 micromol.L (-1))" - Note:  (29.46 - 21.34) / 21.34 = 38% increase in nitric oxide. See GPLC at Amazon.com.

Folate intake associated with lung function, breathlessness and the prevalence of chronic obstructive pulmonary disease - Asia Pac J Clin Nutr. 2010;19(1):103-9 - "The COPD patients had significantly lower habitual intake of folate (mean 231, SD 90 mug/day) than control subjects (mean 261, SD 110 mug/day), p<0.001. Lung function measures were found to be positively associated with dietary folate level. Reductions in prevalence of COPD and especially breathlessness were observed, the respective adjusted odds ratio (OR) being 0.74 (95% confidence interval (CI) 0.35 to 1.58) and 0.43 (95% CI 0.21 to 0.91) for the highest versus lowest quartile of folate intake. The corresponding tests for linear trend were also significant (p<0.05). In conclusion, an inverse association was evident between dietary folate intake and the prevalence of breathlessness for Japanese adults, together with a significant dose-response relationship for the COPD risk. Moreover, increased folate intake might be beneficial to lung function"

Kidney flow and function in hypertension: protective effects of pycnogenol in hypertensive participants--a controlled study - J Cardiovasc Pharmacol Ther. 2010 Mar;15(1):41-6 - "evaluated the effects of Pycnogenol as an adjunct to angiotensin-converting enzyme (ACE)-inhibitor ramipril treatment of hypertensive patients presenting with early signs of renal function problems. One group of 26 patients was medicated with 10 mg ramipril per day only; a second group of 29 patients took Pycnogenol in addition to the ACE inhibitor over a period of 6 months ... Urinary albumin decreased from 87 +/- 23 to 64 +/- 16 mg/d with ramipril only. Additional Pycnogenol lowered albumin significantly better from 91 +/- 25 to 39 +/- 13 mg/day (P < .05). In both groups, serum creatinine was lowered; however, only in the combination treatment group did the effect reached statistical significance. In both groups, CRP levels decreased from 2.1 to 1.8 with ramipril and from 2.2 to 1.1 with the ramipril-Pycnogenol combination; the latter reached statistical significance. Kidney cortical flow velocity was investigated by Doppler color duplex ultrasonography. Both systolic and diastolic flow velocities increased significantly after 6 months medication with ramipril. The addition of Pycnogenol to the regimen statistically significantly further enhanced kidney cortical flow velocities, by 8% for diastolic flow and 12% for systolic flow, relative to values found for the group taking ramipril only" - See Pycnogenol at Amazon.com.

Taking vitamin D with the largest meal improves absorption and results in higher serum levels of 25-hydroxyvitamin D - J Bone Miner Res. 2010 Feb 8 - "Taking vitamin D with the largest meal improves absorption and results in about a 50% increase in serum levels of 25OHD"

Improvement of postmenopausal depressive and anxiety symptoms after treatment with isoflavones derived from red clover extracts - Maturitas. 2010 Mar;65(3):258-61 - "assigned to receive two daily capsules of MF11RCE (80mg red clover isoflavones, Group A) or placebo of equal appearance (Group B) for a 90-day period ... After receiving the MF11RCE compound the total HADS (anxiety and depression subscale scores also) and the total SDS scores decreased significantly. This effect was equivalent to a 76.9% reduction in the total HADS score (76% for anxiety and 78.3% for depression) and an 80.6% reduction in the total SDS score. After placebo, total HADS (anxiety and depression subscale also) and total SDS scores also decreased significantly in comparison to baseline but only equivalent to an average 21.7% decline. CONCLUSION: Red clover derived isoflavones (MF11RCE) were effective in reducing depressive and anxiety symptoms among postmenopausal women" - See Trinovin at Amazon.com and red clover at Amazon.com.

Iron excess in recreational marathon runners - Eur J Clin Nutr. 2010 Mar 3 - "Iron deficiency was defined either as a plasma ferritin (PF) concentration <15 mug/l (iron depletion) ... iron overload was defined as PF >200 mug/l ... Median PF among males was 104 mug/l"

Sickness behavior induced by endotoxin can be mitigated by the dietary soluble fiber, pectin, through up-regulation of IL-4 and Th2 polarization - Brain Behav Immun. 2010 Feb 6 - "We show that a diet rich in soluble fiber protects mice from endotoxin-induced sickness behavior by polarizing mice Th2 when compared to a diet containing only insoluble fiber. Mice fed soluble fiber became less sick and recovered faster from endotoxin-induced sickness behaviors than mice fed insoluble fiber ... These data show that a diet rich in soluble fiber protects against endotoxin-induced sickness behavior by polarizing mice Th2 and promoting alternative activation of macrophages" - See pectin supplements at Amazon.com.

The effects of omega-3 supplementation on pulmonary function of young wrestlers during intensive training - J Sci Med Sport. 2010 Mar;13(2):281-286 - "consuming omega-3 during 12 weeks training had a significantly positive effect on pulmonary variables such as FEV1, FVC, VC, MVV, FEF25-75, FIV1 (p=0.001), but no significant changes were observed in FEV1% (p=0.141) and FIV1% (p=0.117). The results of the present study suggest that consuming omega-3 during intensive wrestling training can improve pulmonary function of athletes during and in post-exercise" - See Mega Twin EPA at Amazon.com and Jarrow Max DHA at Amazon.com.

Health Focus (Adiponectin):

Specific Recommendations:

Alternative News:

  • Dietary supplementation of n-3 PUFA reduces weight gain and improves postprandial lipaemia and the associated inflammatory response in the obese JCR:LA-cp rat - Diabetes Obes Metab. 2009 Nov 16 - "n-3 PUFA treatment resulted in a significant improvement (i.e. decrease) in the postprandial response for triglyceride (45%) (p < 0.05), apoB48 (45%) (p < 0.03) and LBP (33%) (p < 0.05) compared to controls (measured as area under the clearance curve). In contrast, we observed a significant elevation in postprandial haptoglobin (165%) (p < 0.001) in obese rats supplemented with 10% n-3 PUFA. Treatment with 5% n-3 PUFA in the JCR:LA-cp obese animals resulted in a complementary decrease in total body weight gain (6%) (p < 0.001) and an increase (i.e. improvement) in adiponectin (33%) (p < 0.05) compared to controls, without a concomitant reduction in food intake" - See Mega Twin EPA at Amazon.com and Jarrow Max DHA at Amazon.com.
  • Trans-10, cis-12-conjugated linoleic acid reduces the hepatic triacylglycerol content and the leptin mRNA level in adipose tissue in obese Zucker fa/fa rats - Br J Nutr. 2009 Mar 19:1-13 - "Conjugated linoleic acid (CLA) isomers have been reported to reduce body weight and beneficially affect glucose metabolism in animals, but the results are inconsistent and seem to depend on animal model and type of CLA isomer. In the present study, feeding male Zucker fa/fa rats diets supplemented with 1 % trans-10, cis-12-CLA for 10 d reduced the liver TAG content without improving the overall adiposity, and enhanced hepatic mitochondrial and peroxisomal beta-oxidation ... The present results suggest that dietary supplementation with trans-10, cis-12-CLA may increase the catabolism of lipids in liver and adipose tissue. Moreover, we provide new data suggesting that trans-10, cis-12-CLA modulates the expression of resistin and adiponectin inversely in adipose tissue. Hence, the present results suggest that trans-10, cis-12-CLA may have some beneficial effects on lipid metabolism and adiposity but possibly reduces insulin sensitivity" - See CLA products at iHerb.
  • Conjugated Linoleic Acid Supplementation Enhances Antihypertensive Effect of Ramipril in Chinese Patients With Obesity-Related Hypertension - Am J Hypertens. 2009 Mar 19 - "Participants were randomized to a daily dose of 4.5 g/day CLA (nine 0.5-g capsules; a 50:50 isomer blend of c 9,t 11 and t 10,c 12 CLA) with 37.5 mg/day ramipril (group 1) or placebo with 37.5 mg/day ramipril (group 2) for 8 weeks ... Treatment with CLA significantly enhanced the reduction effect of ramipril on systolic BP and diastolic BP (P < 0.05). It also increased plasma adiponectin concentration (P < 0.05) and decreased plasma concentrations of leptin and angiotensinogen (P < 0.05); however, significant change was not observed in ACE activity" - See CLA products at iHerb.
  • Grape polyphenols may protect against obesity: Study - Nutra USA, 3/18/09 - "animals fed a high-fat diet but supplemented with the grape seed extract had adiponectin levels 61 per cent higher than animals only fed the high fat diet. Adiponectin is a protein hormone linked to various metabolic processes, and levels are inversely related to body fat levels" - [Abstract] - See grape seed extract at Amazon.com.
  • Chardonnay grape seed procyanidin extract supplementation prevents high-fat diet-induced obesity in hamsters by improving adipokine imbalance and oxidative stress markers - Mol Nutr Food Res. 2008 Nov 26 - "GSE prevented in part these effects, reducing insulinemia and leptinemia by 16.5 and 45%, respectively, whereas adiponectin level increased by 61% compared with obese controls. GSE lowered glycemia and HOMA-IR and strongly prevented cardiac production of superoxide by 74% and NAD(P)H oxidase expression by 30%. This is the first time that chronic consumption of grape phenolics is shown to reduce obesity development and related metabolic pathways including adipokine secretion and oxidative stress" - See grape seed extract at Amazon.com.
  • Red Wine's Resveratrol May Help Battle Obesity - Science Daily, 6/16/08 - "resveratrol inhibited the pre-fat cells from increasing and prevented them from converting into mature fat cells. Also, resveratrol hindered fat storage. Most interesting, according to Fischer-Posovszky, was that resveratrol reduced production of certain cytokines (interleukins 6 and 8), substances that may be linked to the development of obesity-related disorders, such as diabetes and clogged coronary arteries. Also, resveratrol stimulated formation of a protein known to decrease the risk of heart attack. Obesity decreases this substance, called adiponectin" - [WebMD] - See resveratrol products at Amazon.com.

News & Research:

Abstracts:

No pathinfo

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