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Recent Longevity News for the seven days ending 1/11/12.  You should consult your doctor if you are taking any medications.

Statins linked to higher diabetes risk  - USATODAY.com, 1/9/12 - "Study authors advise patients not to stop taking their medications without talking to a doctor, because statins' proven power to prevent heart attacks and strokes outweighs any potential increase in type 2 diabetes risk. But the results — a nearly 50% increase in diabetes among longtime statin users — should throw cold water on the idea of prescribing these drugs to healthy people, which some have recommended as a way to prevent disease ... In the study, 6.4% of women who didn't use statins developed diabetes during the eight to nine years of follow-up ... That rate rose to 9.9% among statin users" - For now I'm sticking with countering the diabetes risk with things like metformin, etc.  I've been saying for a long time to take small amounts of of everything (for a specific condition) instead of large doses of any one thing (synergy) in case they find something wrong with that supplement or drug in the future.  In the case of cholesterol there's red yeast rice, Sytrinol, policosanol among others.  Related studies:

Study: PSA test doesn't save lives - USATODAY.com, 1/6/12 - "men randomly assigned to get PSA tests were 12% more likely to be diagnosed with prostate cancer, but no more likely to die. That suggests that 12% of men screened with the PSA were "overdiagnosed," or diagnosed with cancer that didn't need to be found, leading to unnecessary treatment ... the National Cancer Institute, which funded the $250 million trial ... it's possible that their study could have underestimated the benefits of screening. That's because only 85% of the men randomly assigned to get routine PSA screening actually did so. In the comparison arm of the trial, however, about half of the men not assigned to get a PSA decided to get one on their own" - Note:  So let's see, a quarter billion for the study and the answer is "we're not sure because many in the placebo group got the test anyway".

Are Vacuum Cleaners Bad for Your Health? - WebMD, 1/6/12 - "Certain vacuum cleaners spit fine dust and bacteria back into the air, where they can spread infections and trigger allergies ... Vacuums with high-efficiency particulate air (HEPA) filters released only slightly lower levels of dust and bacteria than vacuums that did not use these special filters. HEPA filters are supposed to remove 99.9% of the pollen, animal dander, and even bacteria from the air ... For a vacuum to do more harm than good, it has to be a really old vacuum cleaner that has never been cleaned ... His advice? Get a vacuum cleaner that has a HEPA filter, and change the filter and clean your house regularly"

Study: Mental decline can start at 45 - USATODAY.com, 1/6/12 - "Among men aged 45 to 49, reasoning skills declined by nearly 4 percent, and for those aged 65 to 70 those skills dropped by about nearly 10 percent ... For women, the decline in reasoning approached 5 percent for those aged 45 to 49 and about 7 percent for those 65 to 70, the researchers found"

Omega-3 may enhance benefits of strength training for the elderly - Nutra USA, 1/6/12 - "fish oil may be an attractive supplement for the elderly to maximize their neuromuscular responses to strength training, which is important to life quality" - [Abstract] - See Mega Twin EPA at iHerb and Jarrow Max DHA at iHerb.

Health Buzz: U.S. News Ranks the Best Diets for 2012 - US News and World Report, 1/4/12

Low vitamin D levels linked to depression, psychiatrists report - Science Daily, 1/5/12 - "UT Southwestern researchers examined the results of almost 12,600 participants from late 2006 to late 2010. Dr. Brown and colleagues from The Cooper Institute found that higher vitamin D levels were associated with a significantly decreased risk of current depression, particularly among people with a prior history of depression. Low vitamin D levels were associated with depressive symptoms, particularly those with a history of depression, so primary care patients with a history of depression may be an important target for assessing vitamin D levels. The study did not address whether increasing vitamin D levels reduced depressive symptoms" - See vitamin D products at iHerb.

Micronutrient combination may boost male fertility: Study - Nutra USA, 1/4/12 - "group received supplements providing total daily doses of 440 mg L-carnitine, 250 mg L-arginine, 40 mg zinc, 120 mg vitamin E, 80 mg glutathione, 60 micrograms of selenium, 15 mg coenzyme Q10, and 800 micrograms of folic acid ... men receiving the active supplement displayed a 33% improvement in ejaculatory volume, a 215% improvement in sperm cell density, and a 23% improvement in total sperm motility"

Healthy oil components may fight pancreatitis - Nutra USA, 1/3/12 - "They found that the oleic acid and hydroxytyrosol – both of which are present in a particularly high concentration in virgin olive oil and omega-3 polyunsaturated fatty acids – offered protection from inflammatory damage from induced pancreatitis in pancreatic cells" - See Mega Twin EPA at iHerb and Jarrow Max DHA at iHerb and my olive Oil mayonnaise recipe.

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):

Association between plasma 25-OH vitamin D and testosterone levels in men - Clin Endocrinol (Oxf). 2012 Jan 2 - "A small randomized controlled trial suggested that vitamin D might increase the production of testosterone in men, which is supported by experimental studies in animals and a cross-sectional study showing positive associations between plasma 25-hydroxyvitamin D [25(OH)D] and testosterone and concordant seasonal variation of both biomarkers ... 25(OH)D was positively associated with total and free testosterone levels ... The shapes of the dose-response curves indicate that the association between 25(OH)D and total and free testosterone is linear at lower levels of 25(OH)D (below approximately 75-85 nmol/l), reaching a plateau at higher levels" - See vitamin D products at iHerb.

Chronic Administration of Cardanol (Ginkgol) Extracted from Ginkgo biloba Leaves and Cashew Nutshell Liquid Improves Working Memory-Related Learning in Rats - Biol Pharm Bull. 2012;35(1):127-9 - "These findings suggest that cardanol is one of the components in Ginkgo biloba leaves that improves cognitive learning ability" - See Ginkgo biloba products at iHerb.

Associations between n-3 PUFA concentrations and cognitive function after recovery from late-life depression - Am J Clin Nutr. 2012 Jan 4 - "sample of 132 eligible participants who had recovered from major depression (mean ± SD age: 67.8 ± 6.6 y) were enrolled from outpatient psychiatric services. A series of cognitive tests and a structured questionnaire were administered. Fasting blood samples were collected for n-3 PUFA measurements ... the strongest and most consistent correlations were found between immediate recall and concentrations of total n-3 PUFAs and α-linolenic acid (ALA) in erythrocytes, which were observed only in participants with recurrent depression ... Total erythrocyte n-3 PUFA concentrations are positively associated with cognitive function, particularly immediate recall, in older people with previous depression. Lower concentrations of n-3 PUFAs or ALA in erythrocyte membranes may be good predictors for cognitive impairment in older people with previous recurrent depression" - See Mega Twin EPA at iHerb and Jarrow Max DHA at iHerb.

Flavonoid intake and cardiovascular disease mortality in a prospective cohort of US adults - Am J Clin Nutr. 2012 Jan 4 - "Men and women with total flavonoid intakes in the top (compared with the bottom) quintile had a lower risk of fatal CVD (RR: 0.82; 95% CI: 0.73, 0.92; P-trend = 0.01). Five flavonoid classes-anthocyanidins, flavan-3-ols, flavones, flavonols, and proanthocyanidins-were individually associated with lower risk of fatal CVD (all P-trend < 0.05). In men, total flavonoid intakes were more strongly associated with stroke mortality (RR: 0.63; 95% CI: 0.44, 0.89; P-trend = 0.04) than with ischemic heart disease (RR: 0.90; 95% CI: 0.72, 1.13). Many associations appeared to be nonlinear, with lower risk at intakes above the referent category.Conclusions: Flavonoid consumption was associated with lower risk of death from CVD. Most inverse associations appeared with intermediate intakes, suggesting that even relatively small amounts of flavonoid-rich foods may be beneficial"

Effect of folic acid supplementation on the progression of carotid intima-media thickness: A meta-analysis of randomized controlled trials - Atherosclerosis. 2011 Dec 9 - "Our analysis showed that folic acid supplementation significantly reduces the progression of CIMT (WMD: -0.04mm; 95%CI: -0.07, -0.02; P<0.001), particularly in subjects with chronic kidney disease (CKD) (WMD: -0.16mm; 95%CI: -0.26, -0.07; P=0.0006) or high cardiovascular disease (CVD) risk (WMD: -0.05mm; 95%CI: -0.11, 0.00; P=0.06) but not in subjects who were generally healthy with only elevated homocysteine concentrations (WMD:0.00mm; 95%CI: -0.01, 0.01; P=0.35). Furthermore, meta-regression analysis of the data showed that the baseline CIMT levels (P=0.011) and the percent reduction of homocysteine (P<0.001) were positively related to the effect size. Consistently, a greater beneficial effect was seen in those trials with baseline CIMT levels ≥0.8mm (WMD: -0.14mm; 95%CI: -0.19, -0.08; P<0.0001), and a reduction in the homocysteine concentration ≥30% (WMD: -0.22mm; 95%CI: -0.38, -0.06; P=0.009)" - See folic acid products at iHerb.

Differential Influence of Dietary Soy Intake on the Risk of Breast Cancer Recurrence Related to HER2 Status - Nutr Cancer. 2012 Jan 2 - "Legume intake (mostly from black soybeans) was inversely associated with the risk of breast cancer recurrence in HER2 negative cancer patients (HR: 0.27, 95% CI: 0.13-0.57, P for trend < 0.01), whereas legume intake was positively associated in HER2 positive cancer patients (P for trend = 0.02). In HER2 negative cancer patients, isoflavone was inversely associated with breast cancer recurrence (HR: 0.23, 95% CI: 0.06-0.89; P for trend = 0.01). Total soy intake was not associated with an increased risk of cancer recurrence. In conclusion, overall soy food intake might not affect the risk of cancer recurrence, but high intake of soy isoflavones increased the risk of cancer recurrence in HER2-positive breast cancer patients. However, further research is needed to confirm these results due to the small number of cancer recurrence events"

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