单独或与运动相结合的多尼佩西尔治疗,在健康和晚期衰老疾病的小鼠模型中增强了骨肌肉功能
Nicholas J Ernst1, Edziu Franczak1,2, Julie Allen1,2
1Department of Cell Biology and Physiology, The University of Kansas Medical Center, Kansas City, Kansas, United States.
Journal of applied physiology (Bethesda, Md. : 1985)
|November 14, 2025
概括
多尼佩西尔 (DON) 显示出改善年轻小鼠骨肌肉功能和线粒体呼吸的潜力. 然而,这种乙胆酶抑制剂在晚期衰老模型中对肌肉健康的影响很小.
科学领域:
- 老年学是指老年学的学科.
- 骨肌肉生理学 骨肌肉生理学
- 线粒体生物学 线粒体生物学
背景情况:
- 衰老导致肌肉质量和功能减少,增加脆弱性.
- 运动是与年龄相关的肌肉衰退的主要干预措施.
- 乙胆酶抑制剂,如多内佩西尔 (DON),用于认知障碍.
研究的目的:
- 研究DON和跑步机运动 (EX) 对年轻和老年小鼠肌肉和线粒体功能的影响.
- 确定DON是否可以改善骨肌肉质量和线粒体呼吸.
主要方法:
- 野生型 (WT) 和Cisd2淘汰赛 (Cisd2KO) 的雄性和雌性小鼠从4周到15周年龄接受了DON或DON + EX治疗.
- 评估了肌肉强度 (握力,悬挂时间),质量和线粒体呼吸.
- 用行为测试 (光束行走) 来评估运动功能.
主要成果:
- 在WT小鼠中,DON改善了悬挂时间,握力和线粒体呼吸.
- DON和EX组合增加了WT四头肌质量,改善了梁行走性能.
- 在Cisd2KO小鼠中,DON改善了悬挂时间,减少了光束滑动,与运动对线粒体呼吸的一些相互作用.
结论:
- 用DON抑制胆酶对年轻健康小鼠的骨肌肉强度和质量提供了部分益处.
- 这些好处与改善线粒体呼吸有关.
- 在老化小鼠模型中,DON的效果很小,这表明对抗晚期与年龄相关的肌肉衰退的潜力有限.
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