高强度间歇运动在诱导神经发生方面比中等强度运动更有效
Marvin Lambertus1, Samuel Geiseler1, Cecilie Morland1
1Section for Pharmacology and Pharmaceutical Biosciences, Department of Pharmacy, University of Oslo, Oslo, Norway.
The Journal of physiology
|November 24, 2024
概括
高强度间歇训练 (HIIT) 与中等强度运动相比,在成年小鼠中显著增加了新神经元的生长. 在心室-子心室区域的这种效应取决于HCA1受体,而不是在子粒区.
科学领域:
- 神经科学是一个神经科学.
- 运动生理学 运动生理学
- 衰老研究研究 衰老研究
背景情况:
- 大脑衰老会减少神经发生,增加对神经退行性疾病和中风的易感性.
- 成人神经发生在亚粒区 (SGZ) 和心室-心室下区域 (V-SVZ).
- 众所周知,运动可以增强SGZ神经发生,而V-SVZ神经发生与乳酸受体HCA有关.
研究的目的:
- 研究高强度间歇训练 (HIIT) 和中强度间歇训练 (MIIT) 对SGZ和V-SVZ神经发生的不同影响.
- 确定HCA1受体在这些的运动诱导神经发生中的作用.
主要方法:
- 野生型 (WT) 和HCA1淘汰赛 (KO) 的小鼠在3周内接受了久坐,HIIT或MIIT协议.
- 通过量化SGZ和V-SVZ中的双皮质素 (DCX) 阳性和Ki-67阳性细胞来评估神经发生.
主要成果:
- 在WT和KO小鼠的SGZ中,HIIT显著增加了DCX阳性细胞,而MIIT没有影响.
- 在V-SVZ中,HIIT和MIIT在WT小鼠中强大增加了DCX阳性细胞,但在KO小鼠中没有.
- 与MIIT相比,HIIT在两个利基中对神经发生产生产生更明显的影响.
结论:
- 在SGZ和V-SVZ中,HIIT对神经发生的刺激比MIIT更为强大.
- 在V-SVZ中,HCA1受体激活对于运动诱导的神经发生是至关重要的.
- 神经发生调节在SGZ和V-SVZ之间因运动强度和受体激活而有所不同.
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