阿佩林调节骨肌肉适应高强度间歇训练模型中的运动
Teemu Kilpiö1, Sini Skarp1, Ábel Perjés1
1Research Unit of Biomedicine and Internal Medicine, Department of Pharmacology and Toxicology, University of Oulu, Oulu, Finland.
American journal of physiology. Cell physiology
|March 25, 2024
概括
阿佩林信号传递对于肌肉适应运动至关重要. 阿佩林缺乏导致老化肌肉表型,突出其在衰老和疾病期间维持肌肉质量的重要性.
科学领域:
- 运动生理学 运动生理学
- 分子生物学分子生物学
- 心血管研究研究心血管研究
背景情况:
- 血阿佩林水平随着衰老和肌肉衰竭而降低.
- 阿佩林信号在肌肉对生理压力的反应中的作用尚未完全理解.
研究的目的:
- 研究阿佩林信号在心脏和骨肌肉适应高强度间歇训练 (HIIT) 的重要性.
- 探索阿佩林对肌肉细胞能量代谢的影响.
主要方法:
- 阿佩林淘汰赛 (KO) 和野生型 (WT) 鼠标接受了基于跑步机的HIIT.
- 主要小鼠骨肌肌细胞和心肌细胞被用来研究阿佩林对能量代谢的影响.
- 在HIIT后分析了心脏和骨肌肉适应.
主要成果:
- 阿佩林增强了肌肉细胞中的线粒体ATP生产和基因表达.
- 在阿佩林KO小鼠中,HIIT诱导了异常心脏缩和骨肌肉肌纤维大小的减少.
- 阿佩林缺乏导致纤维类型转换为缓慢缩的I型纤维,改变基因表达有利于脂肪酸代谢,以及IGF-1信号受损.
- 阿佩林KO小鼠表现出一个老化的肌肉表型.
结论:
- 阿佩林对于适当的骨和心肌适应高强度运动至关重要.
- 增强神经信号传递可能有利于对抗与年龄或疾病相关的肌肉衰竭.
- 这些发现表明,阿佩林在衰老期间维持肌肉质量和功能中的作用.
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