格拉尼尔格拉尼奥尔和生对卫星细胞的作用 2型糖尿病老鼠的肌性状态
Nigel C Jiwan1,2, Casey R Appell2, Raoul Sterling2
1Department of Kinesiology, Hope College, Holland, MI 49423, USA.
Current issues in molecular biology
|November 26, 2024
概括
2型糖尿病会损害肌肉干细胞,减少肌肉质量. 格拉尼尔格拉尼奥尔和生可以通过支持糖尿病老鼠的卫星细胞池来帮助维持肌肉大小.
科学领域:
- 肌肉生理学 肌肉生理学
- 内分泌学 在内分泌学.
- 细胞生物学 细胞生物学
背景情况:
- 2型糖尿病 (T2D) 与肌肉炎症和氧化应激有关.
- 这可能会损害卫星细胞 (SC) 功能,减少对肌肉维护至关重要的SC池.
- T2D诱导的肌肉缩可能源于SC池耗尽.
研究的目的:
- 对基底卫星细胞 (SC) 肌原状态和2型糖尿病 (T2D) 鼠的肌肉质量对格拉尼尔格拉尼奥尔 (GGOH) 和生的影响进行研究.
- 为了确定GGOH和生是否可以减轻T2D相关的肌肉缩.
- 分析这些化合物对SC标记物和肌肉横截面积 (CSA) 的影响.
主要方法:
- 鼠被食以控制饮食,高脂肪饮食 (HFD) 含有链毒素诱导T2D,或HFD补充GGOH或生根提取物 (GRE).
- 分析了SC标记物 (Pax7,MyoD,MSTN) 的基因和蛋白质表达.
- 测量肌肉横截面积 (CSA),以评估肌肉质量.
主要成果:
- 与对照组相比,HFD诱导的T2D大鼠显示SC数量减少 (Pax7+/MyoD-, Pax7+/MSTN+),SC标记物的基因/蛋白质表达较低 (Pax7,MyoD,MSTN),肌肉CSA较小.
- 两种GGOH和GRE治疗都有助于在T2D大鼠中保存肌肉CSA.
- GGOH和GRE调节了SC标志物表达,这表明它在维持SC池中的作用.
结论:
- 格拉尼尔格拉尼奥尔 (GGOH) 和生根提取物 (GRE) 可以通过支持卫星细胞 (SC) 池来维持2型糖尿病 (T2D) 的肌肉质量.
- 这些化合物似乎影响SC标记体表达,可能抵消T2D诱导的肌肉缩.
- 需要进一步的研究,以充分阐明GGOH和生影响T2D肌肉健康的机制.
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