Department of Molecular, Cell and Cancer Biology
Cellular and Molecular Physiology
Robust mitochondrial respiration provides energy to support physical performance and physiological well-being, whereas mitochondrial malfunction is associated with various pathologies and reduced longevity. In the current study, we tested whether myricetin, a natural flavonol with diverse biological activities, may impact mitochondrial function and longevity. The mice were orally administered myricetin (50 mg/kg/day) for 3 weeks. Myricetin significantly potentiated aerobic capacity in mice, as evidenced by their increased running time and distance. The elevated mitochondrial function was associated with induction of genes for oxidative phosphorylation and mitochondrial biogenesis in metabolically active tissues. Importantly, myricetin treatment led to decreased PGC-1alpha acetylation through SIRT1 activation. Furthermore, myricetin significantly improved the healthspan and lifespan of wild-type, but not Sir-2.1-deficient, C. elegans. These results demonstrate that myricetin enhances mitochondrial activity, possibly by activating PGC-1alpha and SIRT1, to improve physical endurance, strongly suggesting myricetin as a mitochondria-activating agent.
Ageing, Energy metabolism
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DOI of Published Version
Sci Rep. 2017 Jul 24;7(1):6237. doi: 10.1038/s41598-017-05303-2. Link to article on publisher's site
Jung H, Lee N, Kim K. (2017). Myricetin improves endurance capacity and mitochondrial density by activating SIRT1 and PGC-1alpha. Open Access Articles. https://doi.org/10.1038/s41598-017-05303-2. Retrieved from https://escholarship.umassmed.edu/oapubs/3203
Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 License.