Macamide, a component of maca (Lepidium meyenii Walp) lipophilic extract, enhances myogenic differentiation via AKT/p38 signaling and attenuates dexamethasone-induced muscle atrophy
作者:Jongbeom Chae、Dongyup Hahn、Ju-Ock Nam
DOI:10.1016/j.biopha.2024.116249
日期:2024.3
muscle differentiation. Among them, the red maca lipophilic extract, which showed the most effectiveness, was chosen for further investigation. Our results show that RMLE enhances muscle differentiation by inducing MyoD-E2A heterodimerization through the activation of the AKT/p38 pathway. Additionally, RMLE attenuated dexamethasone-induced muscle atrophy by inhibiting nuclear translocation of FoxO3a and
玛卡(Lepidium meyenii)是一种生长在秘鲁安第斯山脉中部地区的植物,据报道具有多种生物活性功能,例如改善或预防骨质疏松、性功能障碍和记忆障碍。在这项研究中,使用不同极性溶剂(PE、HEX 或 BuOH)提取各种颜色(黄色、红色或黑色)的玛卡根,以比较它们对肌肉分化的影响。其中,红色玛卡亲脂性提取物显示出最有效的效果,被选择进行进一步研究。我们的结果表明,RMLE 通过激活 AKT/p38 通路诱导 MyoD-E2A 异二聚化来增强肌肉分化。此外,RMLE 通过在体外和体内抑制 FoxO3a 的核转位和 E3 连接酶(MAFbx 和 MURF1)的表达来减轻地塞米松诱导的肌肉萎缩。因此,基于这些结果表明,玛咖的亲脂性提取物富含非极性化合物玛咖酰胺,可以增强玛咖缓解肌肉稳态的功能特性。