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A torpor-like state in mice slows blood epigenetic aging and prolongs healthspan [ET0283]

ABSTRACT: A torpor-like state in mice slows blood epigenetic aging and prolongs healthspan [ET0283]

PROVIDER: PRJNA1189563 | ENA |

REPOSITORIES: ENA

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A torpor-like state in mice slows blood epigenetic aging and prolongs healthspan

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Project description:Torpor and hibernation are extreme physiological adaptations of homeotherms associated with pro-longevity effects. Yet the underlying mechanisms of how torpor affects aging, and whether hypothermic and hypometabolic states can be induced to slow aging and increase health span, remain unknown. We demonstrate that the activity of a spatially defined neuronal population in the avMLPA, which has previously been identified as a torpor-regulating brain region, is sufficient to induce a torpor like state (TLS) in mice. Prolonged induction of TLS slows epigenetic aging across multiple tissues and improves health span. We isolate the effects of decreased metabolic rate, long-term caloric restriction, and decreased core body temperature (Tb) on blood epigenetic aging and find that the decelerating effect of torpor-like states on aging is mediated by decreased Tb. Taken together, our findings provide novel mechanistic insight into the decelerating effects of torpor and hibernation on aging and support the growing body of evidence that Tb is an important mediator of aging processes.

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