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抗力训练可以保护大鼠在多克索鲁比诱导的心脏毒性的心脏损伤
Claudia Morais Sequeira1, Jefferson Fernandes Evangelista1, Renata Alves1
1Department of Pharmacology and Psychobiology, Rio de Janeiro State University, Rio de Janeiro, BRAZIL.
Medicine and science in sports and exercise
|July 1, 2025
概括
抵抗训练 (RT) 可以通过改善心脏结构和线粒体动力学来保护心脏免受多克索鲁比 (DOX) 诱导的损伤. 这项研究表明,RT在老鼠中减轻了DOX心脏毒性.
科学领域:
- 心脏病学 心脏病学
- 运动生理学 运动生理学
- 分子生物学分子生物学
背景情况:
- 多克索鲁比 (DOX) 是一种强效的化疗剂.
- DOX会引起剂量依赖的心脏毒性,可能导致心力衰竭.
- 在DOX治疗期间保护心脏是一个关键的临床挑战.
研究的目的:
- 调查抵抗训练 (RT) 是否可以减轻多克索鲁比诱导的心脏损伤.
- 为了检查RT对调节肌肉代谢,代谢和左心室中的线粒体动态的蛋白质的影响.
- 评估RT对DOX心脏毒性标志物的影响.
主要方法:
- 雄性Sprague Dawley大鼠被分为控制,DOX/静止和DOX/RT组.
- 每天服用DOX或盐水,持续10天.
- RT涉及八周的梯子爬和重量,同时开始与DOX管理.
主要成果:
- RT显著降低了死亡率,并预防了由DOX引起的心脏纤维缩和纤维化.
- RT缓解了心肌细胞超结构损伤,包括瘤错位和线粒体损伤.
- 参与线粒体动态的RT调节蛋白,增加PGC1α表达并影响Mfn2和FIS1水平.
结论:
- 抵抗训练显示出作为防治多克索鲁比诱导心脏毒性的保护策略的潜力.
- 通过调节与线粒体动力学相关的蛋白质,RT可能会保护心脏.
- 进一步的研究可以探索RT在接受DOX治疗的癌症患者的临床应用.
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