Highlights of new life extension calorie restriction mimicking supplement research The study in Cell Reports, found that SR1720 extended the life span of mice on a standard diet by about 9 percent. They also confirmed their earlier work indicating that the compound extends the life span of mice fed a high-fat diet.
* SRT1720 supplementation extends mean lifespan of mice fed a standard diet
* SRT1720 improves healthspan of mice fed a standard diet
* SRT1720 reduces the age-associated increase in risk factors for metabolic disease
* SRT1720 supplementation confers antiinflammatory properties in target tissues
The prevention or delay of the onset of age-related diseases prolongs survival and improves quality of life while reducing the burden on the health care system. Activation of sirtuin 1 (SIRT1), an NAD+-dependent deacetylase, improves metabolism and confers protection against physiological and cognitive disturbances in old age. SRT1720 is a specific SIRT1 activator that has health and lifespan benefits in adult mice fed a high-fat diet. We found extension in lifespan, delayed onset of age-related metabolic diseases, and improved general health in mice fed a standard diet after SRT1720 supplementation. Inhibition of proinflammatory gene expression in both liver and muscle of SRT1720-treated animals was noted. SRT1720 lowered the phosphorylation of NF-κB pathway regulators in vitro only when SIRT1 was functionally present. Combined with our previous work, the current study further supports the beneficial effects of SRT1720 on health across the lifespan in mice.
It may be a long time before SRT1720 makes it into human medication, however, if it does at all. Even then, it would likely be targeted at specific ailments such as heart disease or diabetes, not longevity, says Rafael de Cabo, a researcher at the National Institute on Aging and the senior author of the paper. “There is no such a disease called ‘aging,’ defined by the F.D.A.,” he says. “You cannot process an application for a drug for curing aging.”
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