McMaster University makes cocktail to slow aging
#31
Posted 02 March 2010 - 05:06 PM
Note also the results section and their measures, personally I would have focused more on lifespan, diseases etc. I get what they were trying to do with their "activity level" measures, namely measure the rat equivalent of a healthy spry senior (then again you could give some old rats some amphetamine and increase their "activity level") and with their neuropeptide and mitochondrial analysis, namely measure how healthy the brain is and if human are these individuals likely to be "senile" but again I would have looked at other variables.
#32
Posted 03 March 2010 - 04:47 AM
A number of cyclists would disagree. Check out this thread for reports from a cycling coach for some nicely-described effects of resveratrol in humans.Hmm, remember the mice studies where resv gave the mice like twice the endurance compared to the control group. That clearly did not pan out in humans to my knowledge.
#33
Posted 21 December 2010 - 12:56 AM
And it was said above that the supplements should be narrowed down to find the most important ones. I don't think 1 or 2 or 5 of them are the ones giving the effects. Unfortunately our pharmaceutical industries "1 drug, 1 disease" mentality won't work to cure the most difficult diseases of aging nor aging itself. Human beings require many substances to sustain life and it will take several things to delay/cure aging. Here is the alpha carotene study.
Arch Intern Med. 2010 Nov 22. [Epub ahead of print]
Serum {alpha}-Carotene Concentrations and Risk of Death Among US Adults: The Third National Health and Nutrition Examination Survey Follow-up Study.
Li C, Ford ES, Zhao G, Balluz LS, Giles WH, Liu S.
Office of Surveillance, Epidemiology, and Laboratory Services (Drs Li and Balluz), and Division of Adult and Community Health, National Center for Chronic Disease Prevention and Health Promotion (Drs Ford, Zhao, and Giles), Centers for Disease Control and Prevention, Atlanta, Georgia; and Departments of Epidemiology and Medicine, University of California at Los Angeles (Dr Liu).
Abstract
BACKGROUND: Much research has been conducted relating total carotenoids-and β-carotene in particular-to risk of cancer and cardiovascular disease (CVD). Limited data are emerging to implicate the important role of α-carotene in the development of CVD or cancer.
METHODS: We assessed the direct relationship between α-carotene concentrations and risk of death among 15 318 US adults 20 years and older who participated in the Third National Health and Nutrition Examination Survey Follow-up Study. We used Cox proportional hazard regression analyses to estimate the relative risk for death from all causes and selected causes associated with serum α-carotene concentrations.
RESULTS: Compared with participants with serum α-carotene concentrations of 0 to 1 μg/dL (to convert to micromoles per liter, multiply by 0.01863), those with higher serum levels had a lower risk of death from all causes (P < .001 for linear trend): the relative risk for death was 0.77 (95% confidence interval, 0.68-0.87) among those with α-carotene concentrations of 2 to 3 μg/dL, 0.73 (0.65-0.83) among those with concentrations of 4 to 5 μg/dL, 0.66 (0.55-0.79) among those with concentrations of 6 to 8 μg/dL, and 0.61 (0.51-0.73) among those with concentrations of 9 μg/dL or higher after adjustment for potential confounding variables. We also found significant associations between serum α-carotene concentrations and risk of death from CVD (P = .007), cancer (P = .02), and all other causes (P < .001). The association between serum α-carotene concentrations and risk of death from all causes was significant in most subgroups stratified by demographic characteristics, lifestyle habits, and health risk factors.
CONCLUSIONS: Serum α-carotene concentrations were inversely associated with risk of death from all causes, CVD, cancer, and all other causes. These findings support increasing fruit and vegetable consumption as a means of preventing premature death.
Edited by JKDC, 21 December 2010 - 01:08 AM.
#34
Posted 21 December 2010 - 01:21 AM
Interesting result. This probably doesn't mean that we could just take alpha carotene in a pill and live longer, though. It sounds like the high serum levels they measured are probably a marker of a better diet compared to those with lower levels.Serum {alpha}-Carotene Concentrations and Risk of Death Among US Adults
#35
Posted 30 December 2010 - 05:16 PM
I believe if you divide the doses in the table by two, you'll have the approximate equivalent dose for a human.
This is what I am going to do. But I'll divide it by four, just to be careful. My new regimen.
Hurry up and take it while it still works.
Well, the study looks quite reliable as far as I can tell. If anyone findes "holes" in it, please let us know.
#36
Posted 30 December 2010 - 09:31 PM
Edited by Athanasios, 31 December 2010 - 03:26 AM.
#37
Posted 09 June 2013 - 09:55 AM
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