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Recent Longevity News for the seven days ending 11/19/08.  You should consult your doctor if you are taking any medications.

Vitamin D Can Alter Color Cancer Cells In Many Ways, Through One Pathway - Science Daily, 11/17/08 - "Vitamin D can tame the rogue cell by adjusting everything from its gene expression to its cytoskeleton" - See vitamin D at Amazon.com.

Physical Activity, Sleep May Cut Cancer Risk - WebMD, 11/17/08 - "Among the most physically active women younger than 65 -- women who reported getting about an hour a day of moderate physical activity -- cancer was 47% rarer for those who got at least seven hours of nightly sleep. Those findings held regardless of other cancer risk factors"

Does Growth Hormone Drug Slow Alzheimer's Disease? - Science Daily, 11/17/08 - "A new study shows that a drug that increases the release of growth hormone failed to slow the rate of progression of Alzheimer's disease in humans"

Men Who Take Aspirin Have Significantly Lower PSA Levels - Science Daily, 11/16/08 - "PSA levels were 9 percent lower in men taking aspirin (the NSAID most commonly used) compared with men who did not use aspirin"

Calcium May Only Protect Against Colorectal Cancer In Presence Of Magnesium - Science Daily, 11/16/08 - "supplementation of calcium only reduced the risk of adenoma recurrence if the ratio of calcium to magnesium was low and remained low during treatment. "The risk of colorectal cancer adenoma recurrence was reduced by 32 percent among those with baseline calcium to magnesium ratio below the median in comparison to no reduction for those above the median"

Vitamin C Lowers Levels Of Inflammation Biomarker Considered Predictor Of Heart Disease - Science Daily, 11/14/08 - "for people with elevated CRP levels, the amount of CRP reduction achieved by taking vitamin C supplements in this study is comparable to that in many other studies of cholesterol-lowering drugs called statins. They noted that several larger statin trials lowered CRP levels by about 0.2 milligrams per liter; in this latest study, vitamin C lowered CRP by 0.25 milligrams per liter" - See vitamin C products at Amazon.com.

Belly Fat Doubles Death Risk - WebMD, 11/12/08 - "Belly fat has been linked to an increased risk of heart disease and diabetes. Now an important new study links belly fat to early death ... Each 2-inch increase in waist circumference was associated with close to a 17% increase in mortality in men and a 13% increase in women"

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):

Cyanocobalamin May be Beneficial in the Treatment of Recurrent Aphthous Ulcers Even When Vitamin B12 Levels Are Normal - Am J Med Sci. 2008 Nov;336(5):379-382. - "recurrent aphthous ulcers (RAUs) ... vitamin B12 (cobalamin) ... cobalamin normal group (CNG) ... A significant increase in cobalamin levels was observed after cyanocobalamin treatment in both groups. A significant decrease in aphthous ulcer frequency was also concurrently observed. 96% of the patients showed good response to replacement treatment, 4% of the study population did not respond to the treatment ... Cyanocobalamin treatment maybe beneficial for patients with RAU even when serum cobalamin levels are normal. We suggest that higher serum cobalamin levels should be attained in patients with RAU for mucosal protection" - See vitamin B12 at Amazon.com.

Telmisartan improves insulin resistance in high renin nonmodulating salt-sensitive hypertensives - J Hypertens. 2008 Dec;26(12):2393-8 - "Nonmodulating (NMHT) is a high-renin subtype of salt sensitive hypertension, which additionally develops insulin resistance and oxidative stress. Conversely, modulating hypertensives (MHT) normally regulates renal hemodynamics after high sodium intake without metabolic impairment ... In NMHT, telmisartan, after 3 months treatment, significantly reduced fasting and 120 min insulinemia (fasting: 8.4 +/- 2, 120 min: 25 +/- 10 muU%; P < 0.01) compared either to basal values or ramipril treatment. Similarly, only in NMHT, compared with basal values and ramipril treatment, telmisartan improved the HOMA-IR index in both MHT (2.76 +/- 0.16 to 2.24 +/- 0.18, P < 0.05) and NMHT (from: 4.4 +/- 1 to 2.3 +/- 0.7) and triglyceride plasma levels (MHT: from 139 +/- 1.85 to 122 +/- 2.4 mg%, P < 0.05; NMHT: from: 223 +/- 12 to 146 +/- 10 mg%, P < 0.01). Finally, highly sensitive C-protein-reactive protein values were higher in NMHT (0.33 +/- 0.07 mg.dl) than in MHT (0.14 +/- 0.06 mg.dl; P < 0.01). Both treatments reduced highly sensitive C-protein-reactive protein in NMHT. (ramipril from 0.32 +/- 0.05 mg.dl to 0.26 +/- 0.06 m.dl (P < 0.05) and telmisartan from 0.34 +/- 0.05+/- to 0.20 +/- 0.05 mg.dl (P < 0.01). CONCLUSION: Our data suggest that the improvement of the insulin sensitivity by telmisartan, instead of a similar effect on blood pressure shown by both drugs, could be ascribed to the PPAR agonistic action of telmisartan. This opens an interesting therapeutic approach for patients with hypertension and altered glycemic metabolism"

Telmisartan prevents aneurysm progression in the rat by inhibiting proteolysis, apoptosis and inflammation - J Hypertens. 2008 Dec;26(12):2361-73 - "The angiotensin II type 1 receptor antagonist, telmisartan, prevents abdominal aortic aneurysm progression independently of blood pressure reduction by inhibiting proteolysis, apoptosis and inflammation in aortic tissue"

Grape seed extract induces cell cycle arrest and apoptosis in human colon carcinoma cells - Nutr Cancer. 2008;60 Suppl 1:2-11 - "control colorectal cancer (CRC) ... Grape seed extract (GSE) ... Our results show that irrespective of source, GSE strongly inhibits LoVo, HT29, and SW480 cell growth, with a G1 arrest in LoVo and HT29 cells but an S and/or G2/M arrest in SW480 cell cycle progression. GSE also induced Cip/p21 levels in all 3 cell lines. Furthermore, an induction of apoptosis was observed in all 3 cell lines by GSE. Taken together, our findings suggest that GSE could be an effective CAM agent against CRC possibly due to its strong growth inhibitory and apoptosis-inducing effects" - See grape seed extract at Amazon.com.

Angiotensin II type 2 receptor blockade increases bone mass - J Biol Chem. 2008 Nov 11 - "Treatment with AT2 receptor blocker significantly enhanced the levels of bone mass and this effect was based on the enhancement of osteoblastic activity as well as the suppression of osteoclastic activity in vivo" - That might be another good reason for telmisartan as a first line treatment for hypertension.  See telmisartan at OffshoreRx1.com.

Increased reverse T3 is associated with shorter survival in independently-living elderly. The Alsanut study - Eur J Endocrinol. 2008 Nov 10 - "rT3 was the only thyroid hormone associated with shorter survival" - Related topics:

  • 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"

Effects of carnitine supplementation on flow-mediated dilation and vascular inflammatory responses to a high-fat meal in healthy young adults - Am J Cardiol. 2008 Nov 15;102(10):1413-7 - "flow-mediated dilation (FMD) ... these findings indicate that carnitine supplementation in healthy individuals improves postprandial FMD after a high-fat meal"

Neat Tech Stuff :

  • Google Mobile App - This was just released for the iPhone.  See the video.  For example it recognizes your location and you can just say something like "show times" or "Chinese restaurant" and it does the search for you.

Health Focus (Actos (pioglitazone HCl)) - I threw this in so that people could read the pro and cons.  The big thing about pioglitazone is that it reduces the risk of progression to diabetes by 81% (metformin is only 31%) and diabetes is becoming almost epidemic.  :

Pioglitazone News & Research:

Pioglitazone Abstracts: