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, 441 (1), 236-42

Enhancement of Mitochondrial Function Correlates With the Extension of Lifespan by Caloric Restriction and Caloric Restriction Mimetics in Yeast

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Enhancement of Mitochondrial Function Correlates With the Extension of Lifespan by Caloric Restriction and Caloric Restriction Mimetics in Yeast

Kyung-Mi Choi et al. Biochem Biophys Res Commun.

Abstract

Caloric restriction mimetics (CRMs) have been developed to mimic the effects of caloric restriction (CR). However, research reports for the effects of CRMs are often times inconsistent across different research groups. Therefore, in this study, we compared seven identified CRMs which extend the lifespans of various organisms including caffeine, curcumin, dapsone, metformin, rapamycin, resveratrol, and spermidine to CR for mitochondrial function in a single model, Saccharomyces cerevisiae. In this organism, rapamycin extended chronological lifespan (CLS), but other CRMs failed to extend CLS. Rapamycin enhanced mitochondrial function like CR did, but other CRMs did not. Both CR and rapamycin worked on mitochondrial function, but they worked at different windows of time during the chronological aging process.

Keywords: ATP; CLS; CR; CRMs; Caloric restriction; Caloric restriction mimetics; MMP; Mitochondrial membrane potential; RLS; ROS; Rapamycin; Reactive oxygen species; caloric restriction; caloric restriction mimetics; chronological lifespan; mitochondrial membrane potential; reactive oxygen species; replicative lifespan.

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