抵抗运动训练在实验性肺动脉高血压中减轻了骨肌肉缩
Sebastião Felipe Ferreira Costa1,2, Luciano Bernardes Leite3, Leôncio Lopes Soares4
1Department of Physical Education, Laboratory of Exercise Biology, Federal University of Viçosa, Viçosa, MG, Brazil. sebastiao.costa@ufv.br.
Pflugers Archiv : European journal of physiology
|December 8, 2025
概括
抵抗训练 (RT) 有助于预防肺动脉高血压 (PAH) 的老鼠的骨肌肉缩. 这种干预通过调节蛋白质分解和减少氧化还原失衡来减轻不利的重塑和缩.
科学领域:
- 生理学 生理学 生理学
- 运动科学 运动科学
- 病理学 病理学 病理学
背景情况:
- 肺动脉高血压 (PAH) 可以导致骨肌肉缩.
- 单克罗他林 (MCT) 用于在动物模型中诱导PAH.
- 抵抗训练 (RT) 是一种潜在的干预措施,用于管理肌肉消耗.
研究的目的:
- 为了研究RT对MCT诱导的PAH的老鼠骨肌肉缩的影响.
- 确定RT是否可以预防或减轻与PAH相关的肌肉结构变化和分子变化.
主要方法:
- 维斯特老鼠被分为静止控制,静止高血压和训练高血压组.
- 使用单克罗他林 (MCT) 诱导了PAH.
- 训练高血压组接受了为期3周的阻力训练计划,包括垂直爬梯.
主要成果:
- 在患有PAH的老鼠中,RT改善了运动耐受性.
- RT 保存了肌细胞横截面积和减少了原沉积.
- RT降低了蛋白质溶解剂 (MuRF1,atrogin-1,myostatin) 的表达和减弱的氧化还原失衡 (CAT,NO,CP).
结论:
- 在MCT诱导的PAH的发展过程中,RT有效地防止骨肌肉缩.
- 通过减轻不利的结构改造,调节蛋白质分解和减少氧化还原失衡来调节RT的保护作用.
- 在这个PAH模型中,RT没有影响肌肉缩路径 (Akt,eIF4E).
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