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Article Abstract
Sesamol is a major bioactive component extracted from sesame seeds and has various medicinal properties. However, the effects of sesamol on sarcopenia associated with aging and obesity remains unclear. Therefore, the protective effects and underlying mechanisms of sesamol on sarcopenia was evaluated in aged and obese C57BL/6 J male mouse models fed a high fat diet and C2C12 myotubes co-treated with D-gal and PA in this study. Our in vivo data showed that sesamol activated AKT/mTOR/FoxO1 signal pathway, and then upregulated p-p70S6K and p-4EBP1 to promote myoprotein synthesis, and downregulated Atrogin-1 and MuRF1 to inhibit myoprotein degradation, thus ameliorating sarcopenia related to aging and obesity. Furthermore, our in vitro results confirmed the protective effect and aforementioned mechanisms of sesamol on sarcopenia. Collectively, sesamol could alleviate sarcopenia associated with aging and obesity via activating the AKT/mTOR/FoxO1 signal pathway. Our findings highlight the therapeutic potentials of sesamol for aging and obesity-related metabolic muscular complications.
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