由于肝脏生成受损而导致的认知障碍,耐力运动可以预防
Taylor J Kelty1,2,3, Nathan R Kerr1,3, Chih H Chou1
1Department of Biomedical Sciences, University of Missouri-Columbia, Columbia, Missouri, USA.
肝脏酸的产生对大脑健康和认知功能至关重要. 耐力运动可以防止认知能力下降,即使基的产生受损.
科学领域:
- 神经科学是一个神经科学.
- 代谢研究的研究.
- 运动生理学 运动生理学
背景情况:
- 耐力运动以其神经保护作用而闻名.
- 肝生产在调解这些益处中的作用尚未完全理解.
研究的目的:
- 为了研究肝脏生产在运动期间大脑健康中的作用.
- 为了确定代功能受损是否会影响认知功能和线粒体活动.
- 为了检查耐力运动是否可以抵消由肝脏生成减少引起的缺陷.
主要方法:
- 在老鼠中,肝脏3-基甲基酸-CoA合成酶2 (HMGCS2) 的病毒性淘汰.
- 急性和慢性跑步机运行协议.
- 测量子度的血测量.
- 额叶皮层的蛋白质学分析.
- 评估线粒体呼吸的情况.
- 认知行为测试 (空间记忆).
主要成果:
- 肝脏HMGCS2倒置降低了运动后的血基度.
- Knockdown 损害了线粒体功能,并在前皮层减少了突触可塑性标记物.
- 空间记忆的性能被HMGCS2 knockdown显著降低.
- 慢性耐力炼训练可以预防这些认知和线粒体缺陷.
结论:
- 肝生成对于保持认知功能和线粒体健康至关重要,独立于运动状态.
- 耐力运动可以减轻由于肝脏生成不足而产生的神经病理.
- 这项研究确立了肝脏新陈代谢和大脑健康之间的机制联系.
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