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Ginsenoside Rg1 Attenuates Muscle Atrophy in Hyperglycemic Conditions, Inactivity and Protein Deprivation Models via AKT/mTOR Pathway Activation

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机构： [1]Medical Faculty, Kunming University of Science and Technology, Kunming, Yunnan, China. [2]Department of Geriatrics, The First People's Hospital of Yunnan Province, Kunming, Yunnan, China. [3]The Affiliated Hospital of Kunming University of Science and Technology, Kunming, Yunnan, China.

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关键词： Ginsenoside Rg1 Muscle Atrophy Hyperglycemia AKT/mTOR Pathway C2C12 Myoblasts Inactivity Protein Restriction

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Muscle atrophy, a debilitating condition prevalent in diabetes and extended periods of immobilization, lacks robust therapeutic strategies. This investigation examines ginsenoside Rg1's therapeutic potential in counteracting muscle atrophy under hyperglycemic conditions and in experimental models of immobilization and dietary protein restriction.C2C12 murine myoblasts were cultured under variable glucose concentrations and treated with or without Rg1. Multiple cellular parameters were evaluated, including cell viability, apoptotic indices, cell cycle distribution, and protein synthesis rates. The activation status of the protein kinase B (AKT)/mammalian target of rapamycin (mTOR) signaling cascade and expression of atrophy-related markers were quantified using qRT-PCR and Western blot analyses. In parallel animal studies, rats were subjected to either immobilization or protein restriction protocols, with or without Rg1 administration. Muscle function, mass, and relevant biomarkers were evaluated.Hyperglycemic conditions significantly compromised C2C12 myoblast viability, triggered apoptotic pathways, and disrupted normal cell cycle progression. Rg1 administration effectively attenuated these detrimental effects through enhanced AKT/mTOR pathway activation, upregulation of Myogenin (MyoG) expression, and suppression of atrophy-associated markers. In the rat models, Rg1 supplementation significantly ameliorated muscle deterioration, maintaining muscle mass, contractile force, and exercise tolerance, while simultaneously modulating atrophy signaling pathways and attenuating inflammatory responses. The protective effects of Rg1 were abrogated after the co-treatment with an AKT inhibitor.Ginsenoside Rg1 exhibits significant protective properties against muscle atrophy under hyperglycemic conditions and in experimental models of immobilization and protein restriction, primarily mediated through activation of the AKT/mTOR signaling pathway. These findings establish Rg1 as a promising therapeutic candidate for the treatment of muscle atrophy.Copyright© Bentham Science Publishers; For any queries, please email at epub@benthamscience.net.

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大类 | 4 区医学

小类 | 4 区医学：研究与实验

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Q3 MEDICINE, RESEARCH & EXPERIMENTAL

影响因子： 2.2 最新[2023版] 2.1 最新五年平均 0 出版当年[2024版] 0 出版当年五年平均 2.2 出版前一年[2023版]

第一作者：

第一作者机构： [1]Medical Faculty, Kunming University of Science and Technology, Kunming, Yunnan, China. [2]Department of Geriatrics, The First People's Hospital of Yunnan Province, Kunming, Yunnan, China. [3]The Affiliated Hospital of Kunming University of Science and Technology, Kunming, Yunnan, China.

通讯作者：

通讯机构： [1]Medical Faculty, Kunming University of Science and Technology, Kunming, Yunnan, China. [2]Department of Geriatrics, The First People's Hospital of Yunnan Province, Kunming, Yunnan, China. [3]The Affiliated Hospital of Kunming University of Science and Technology, Kunming, Yunnan, China.

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Ginsenoside Rg1 Attenuates Muscle Atrophy in Hyperglycemic Conditions, Inactivity and Protein Deprivation Models via AKT/mTOR Pathway Activation

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