耐力运动对骨肌肉转录组概况的急性,短期和长期影响
Thomas Beiter1, Martina Zügel2, Jens Hudemann1
1Department of Sports Medicine, Medical Clinic, Eberhard-Karls-University of Tübingen, 72076 Tübingen, Germany.
International journal of molecular sciences
|March 13, 2024
概括
耐力运动训练显著改变了骨肌肉.
科学领域:
- 分子生物学分子生物学
- 运动生理学 运动生理学
- 基因组学就是基因组学.
背景情况:
- 了解骨肌肉适应运动对于疾病预防和治疗至关重要.
- 运动训练具有显著的健康益处,需要对其分子基础有更深入的了解.
- 肌肉适应运动的细胞和分子机制需要进一步阐明.
研究的目的:
- 在年轻的成年男性中识别分辨耐力训练 (ET) 和未训练 (SED) 肌肉的转录特征.
- 描述基线转录差异和急性运动诱导的转录组反应.
- 通过跟踪8周训练计划期间的基因表达变化来评估骨肌肉的适应性.
主要方法:
- 微阵列技术被用来分析庞大的横向肌肉活检标本.
- 与ET运动员和久坐不动的人 (SED) 的基线转录组概况进行比较.
- 在接受了为期8周的耐力训练计划的人群中监测基因表达变化 (SED-T).
主要成果:
- 确定了不同的基线转录特征,反映了ET和SED肌肉之间的氧化和代谢能力的差异.
- 在3周后观察到氧化适应调节者的上调,并在SED-T训练8周后转向ET签名.
- 急性强度循环运动诱导了转录反应,主要与收缩性,氧化性和炎症性压力有关,与基线特征的重叠有限.
结论:
- 耐力训练诱导了骨肌肉基因表达的显著适应性变化,将未经训练的肌肉转向训练的表型.
- 急性炼反应涉及复杂的信号级联来管理恒常性挑战,训练有素和未训练有素的个体之间基因诱导/抑制动力学的定量差异.
- 这项研究提供了一个全面的检查的转录框架底层骨肌肉的可塑性,以应对耐力运动.
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