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Recent Longevity News for the seven days ending 8/13/08.  You should consult your doctor if you are taking any medications.

Low Vitamin D Levels Pose Large Threat To Health; Overall 26 Percent Increased Risk Of Death - Science Daily, 8/12/08 - "This translates overall to an estimated 26 percent increased risk of any death, though the number of deaths from heart disease alone was not large enough to meet scientific criteria to resolve that it was due to low vitamin D levels ... Previous results from the same nationwide survey showed that 41 percent of men and 53 percent of women are technically deficient in the nutrient, with vitamin D levels below 28 nanograms per milliliter" - See vitamin D at Amazon.com.

Proton Pump Inhibitors Increase Risk Of Bone Fractures, Study Finds - Science Daily, 8/12/08 - "Patients who use proton pump inhibitors for 7 or more years to treat reflux, peptic ulcers and other conditions are at greater risk of osteoporosis-related fractures"

Running Slows the Effects of Aging - WebMD, 8/11/08 - "Older runners have fewer disabilities, remain more active as they get into their 70s and 80s, and are half as likely as non-runners to die early deaths, the study shows ... If you had to pick one thing to make people healthier as they age, it would be aerobic exercise ... The researchers used national death records to learn which participants died and why. Nineteen years into the study, 34% of the non-runners had died, compared with only 15% of the runners" - [Science Daily]

Low Level of Vitamin D Ups Death Risk - WebMD, 8/11/08 - "Over an average follow-up period of about nine years, 1,806 participants died. The researchers found a 26% increased risk of death from any cause for the quartile of participants with the lowest vitamin D levels compared to those with the highest levels" - See vitamin D at Amazon.com.

Pain 'linked with low vitamin D' - BBC News, 8/11/08 - "Low levels of the sunshine vitamin, vitamin D, may contribute to chronic pain among women ... If I had chronic pain I would certainly check I was getting enough vitamin D" - See vitamin D at Amazon.com.

Eat Oily Fish At Least Once A Week To Protect Your Eyesight In Old Age - Science Daily, 8/8/08 - "people who habitually consume oily fish at least once a week compared with less than once a week are 50% less likely to have wet AMD. There was no benefit from consumption of non oily white fish. There was a strong inverse association between levels of DHA and EPA and wet AMD. People in the top 25% of DHA and EPA levels (300 mg per day and above) were 70% less likely to have wet AMD" - See Mega Twin EPA at Amazon.com and Jarrow Max DHA at Amazon.com.

Broccoli can reverse diabetic heart damage, say researchers - Nutra USA, 8/8/08 - "Our study suggests that compounds such as Sulforaphane from broccoli may help counter processes linked to the development of vascular disease in diabetes ... Published in the journal Diabetes Care, the epidemiological study of 71,346 female nurses found for every additional serving of green leafy vegetables, the risk of developing diabetes may be reduced by almost 10 per cent" - [Abstract]

Vitamin C may help lower diabetes risk - MSNBC, 8/7/08 - "the likelihood of developing diabetes was 62 percent lower in men and women with the highest circulating vitamin C levels, relative to men and women with the lowest vitamin C levels" - See vitamin C products at Amazon.com.

Periodontal Disease May Independently Predict New-Onset Diabetes - Doctor's Guide, 8/7/08 - "Individuals with elevated levels of periodontal disease were nearly twice as likely to become diabetic in that 20-year timeframe"

Eating Fish May Reduce the Risk for Subclinical Brain Abnormalities - Medscape, 8/7/08 - "Dietary intake of tuna and other fish appear to lower the prevalence of subclinical infarcts and white-matter abnormalities ... We also found that broiled and baked fish appeared to be beneficial, while fried fish was not ... The findings add to prior evidence suggesting fish with higher eicosapentaenoic and docosahexaenoic acid content appear to have clinically important health benefits" - See Mega Twin EPA at Amazon.com.

Stress Hormone Found To Regulate Brain Neurotransmission - Science Daily, 8/7/08 - "When we are subjected to a stress, our adrenal glands secrete hormones that affect our entire body. One of these hormones, cortisol, enables us to adapt physically and mentally to the stimulus. Following a major or repeated stress that the individual has no control over, however, cortisol is secreted in great quantities over a long period of time. This hypersecretion has damaging effects on the individual, to the point of accelerating aging and facilitating the onset of illnesses such as depression"

Dietary Supplement Use in Cancer Care: Help or Harm (.pdf) - Hematol Oncol Clin North Am. 2008 Aug 1;22(4):581-617 - "Immune Modulation ..."

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):

Green tea reduces LDL oxidability and improves vascular function - J Am Coll Nutr. 2008 Apr;27(2):209-13 - "The mean diameter of the brachial artery following the post-compression hyperaemia phase rose significantly (p < 0.0001) after treatment with green tea extract. Flow-mediated brachial artery vasodilation ranged from 5.68% for the placebo phase to 11.98% after the green tea extract (p = 0.02). The consumption of green tea extract was associated with a significant 37.4% reduction in the concentration of oxidized LDL (TBARS) (p = 0.017). The levels of anti-oxidized LDL IgM antibodies fell significantly after treatment (p = 0.002) ... This study found that consumption of green tea extract by women for five weeks produced modifications in vascular function and an important decrease in serum oxidizability" - See green tea extract at Amazon.com.

Protective Effects of Bilberry (Vaccinium myrtillus L.) Extract on Restraint Stress-Induced Liver Damage in Mice - J Agric Food Chem. 2008 Aug 9 - "Bilberry extract (containing 42.04% anthocyanins) was oral administrated to mice at 50, 100, and 200 mg/(kg.day) for five days, which remarkably decreased plasma ALT level to 17.23 +/- 2.49 U/L at the dose of 200 mg/(kg.day) and thus alleviated stress-induced liver damage. In addition, bilberry extracts increased glutathione (GSH) and vitamin C levels and significantly decreased MDA and nitric oxide (NO) levels in the liver tissues. These results suggest that bilberry extract plays an important role in protecting against restraint stress-induced liver damage by both scavenging free radicals activity and lipid peroxidation inhibitory effect. This study showed the beneficial health effects of bilberry extract through its antioxidative action" - See bilberry at Amazon.com.

The angiotensin II receptor blocker telmisartan improves insulin resistance and has beneficial effects in hypertensive patients with type 2 diabetes and poor glycemic control - Diabetes Res Clin Pract. 2008 Aug 8 - "The telmisartan significantly improved HOMA-IR in hypertensive patients and also significantly decreased HbA1c in type 2 diabetic patients especially in the patients with poor glycemic control (HbA1c>==8.0%). These results indicate that telmisartan improves insulin resistance and gives beneficial effects in hypertensive patients with type 2 diabetes and a poor glycemic control" - Just another reason I feel that telmisartan should be the first line treatment for hypertension.  Click here for other reasons.  See telmisartan at OffshoreRx1.com.

Association of WBC count and glucose metabolism among Chinese population aged 40 years and over - Diabetes Res Clin Pract. 2008 Aug 6 - "We concluded that an increase in WBC count was associated with the deterioration of glucose tolerance"

Oily fish consumption, dietary docosahexaenoic acid and eicosapentaenoic acid intakes, and associations with neovascular age-related macular degeneration - Am J Clin Nutr. 2008 Aug;88(2):398-406 - "neovascular AMD (NV-AMD) ... Eating oily fish at least once per week compared with less than once per week was associated with a halving of the OR for NV-AMD" - See Mega Twin EPA at Amazon.com and Jarrow Max DHA at Amazon.com.

Serum selenium and serum lipids in US adults - Am J Clin Nutr. 2008 Aug;88(2):416-23 - "Elevated serum selenium was associated with elevated serum concentrations of total cholesterol, LDL cholesterol, HDL cholesterol, triacylglycerols, apo B, and apo A-I among US adults, a selenium-replete population"

Healthier lifestyle predicts higher circulating testosterone in older men. The Health In Men Study - Clin Endocrinol (Oxf). 2008 Aug 7 - "In men >65 years old, higher lifestyle score reflecting greater engagement in healthy behaviours predicts higher subsequent total testosterone and SHBG levels. This relationship appears cumulative and may reflect interaction between lifestyle and insulin sensitivity. Successfully promoting healthy behaviours in older men could ameliorate the age-related decline in circulating testosterone"

Prevalence of low male testosterone levels in primary care in Germany: cross-sectional results from the DETECT study - Clin Endocrinol (Oxf). 2008 Aug 7 - "Stepwise logistic regression analysis revealed that obesity, metabolic syndrome, cancer, intake of six or more drugs, acute inflammation, and non-smoking were associated with hypogonadal testosterone levels. Higher age, liver diseases, and cancer were associated with very low testosterone levels (<1.0 ng/ml) ... Hypogonadal testosterone levels are common in primary care, particularly in patients with the above conditions"

Relation of dietary and other lifestyle traits to difference in serum adiponectin concentration of Japanese in Japan and Hawaii: the INTERLIPID Study - Am J Clin Nutr. 2008 Aug;88(2):424-30 - "The significantly higher mean serum adiponectin concentration in Japan than in Hawaii may be attributable largely to differences in BMI"

Activation of NF-E2-related factor-2 reverses biochemical dysfunction of endothelial cells induced by hyperglycemia linked to vascular disease - Diabetes. 2008 Aug 4 - "Sulforaphane (SFN) is an activator of transcription factor NF-E2-related factor-2 (nrf2) that regulates gene expression through the promoter antioxidant response element (ARE). Nrf2 regulates the transcription of a battery of protective and metabolic enzymes ... We conclude that activation of nrf2 may prevent biochemical dysfunction and related functional responses of endothelial cells induced by hyperglycemia in which increased expression of transketolase has a pivotal role" - [Nutra USA]

Association of vitamin D deficiency with heart failure and sudden cardiac death in a large cross-sectional study of patients referred for coronary angiography - J Clin Endocrinol Metab. 2008 Aug 5 - "sudden cardiac death (SCD) ... Low levels of 25(OH)D and 1,25(OH)2D are associated with prevalent myocardial dysfunction, deaths due to heart failure and SCD" - See vitamin D at Amazon.com.

High adiponectin concentrations are associated with the metabolically healthy obese phenotype - J Clin Endocrinol Metab. 2008 Aug 5 - "Certain obese individuals have adiponectin levels similar to those found in normal BMI subjects; this is associated with the metabolically healthy obese phenotype" - See my adiponectin page for ways to increase it.

Salivary cortisol is related to atherosclerosis of carotid arteries - J Clin Endocrinol Metab. 2008 Aug 5 - "area under the curve (AUC), which is a measure of total cortisol exposure while awake, and the slope, which is a measure of diurnal cortisol decline. Results: Total cortisol exposure while awake (AUC) was associated with higher plaque scores (beta = 0.08 per SD of AUC, 95% CI; 0.00 - 0.17, p-value = 0.04) in a fully adjusted linear regression model. Persons with an AUC in the highest tertile had a higher number of plaques of carotid arteries compared to those in the lowest tertile (3.08 versus 2.80 ... Our results support the hypothesis that increased total cortisol exposure is independently associated with atherosclerosis of the carotid arteries" - See my cortisol page for ways to reduce it.  I was really big on reducing cortisol when I first started my newsletter but there hasn't been much news on it lately.

Supplement Focus (Vitamin C):

Vitamin C News & Research:

Vitamin C Abstracts: