Friday, December 18, 2009

Not So Sweet: Over-consumption Of Sugar Linked To Aging

Not So Sweet: Over-consumption Of Sugar Linked To Aging: ScienceDaily (Mar. 9, 2009)"We know that lifespan can be extended in animals by restricting calories such as sugar intake. Now, according to a study published in the journal PLoS Genetics, Universite de Montreal scientists have discovered that it's not sugar itself that is important in this process but the ability of cells to sense its presence...if they removed the gene for a glucose sensor from yeast cells, they lived just as long as those living on a glucose-restricted diet. In short, the fate of these cells doesn't depend on what they eat but what they think they're eating...The scientists found that cells unable to consume glucose as energy source are still sensitive to the pro-aging effects of glucose. Conversely, obliterating the sensor that measures the levels of glucose significantly increased lifespan..."

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