埃克斯基因虹膜素通过抑制肠-大脑轴介导的炎症来减轻认知障碍
Hu Zhang1, Jiling Liang1, Jielun Huang1
1Tianjiu Research and Development Center for Exercise Nutrition and Foods, Hubei Key Laboratory of Exercise Training and Monitoring, College of Sports Medicine, Wuhan Sports University, Wuhan 430079, China.
Journal of advanced research
|October 31, 2024
概括
有氧运动和虹膜素通过调节肠道微生物群和代谢物来改善老年小鼠的认知功能. 这项研究阐明了运动如何通过色素肌基因对抗认知衰退.
科学领域:
- 神经科学是一个神经科学.
- 微生物学 微生物学
- 代谢学 代谢学 代谢学
背景情况:
- 运动通过影响肠道微生物群和exerkine irisin来提高认知表现.
- 通过优化肠道微生物群,运动诱导的虹膜素对认知有好处的确切机制尚不清楚.
研究的目的:
- 通过优化肠道微生物群和代谢物来研究运动诱导的虹膜是否能改善认知功能.
- 探索伊丽素在缓解与年龄相关的认知衰退中的作用.
主要方法:
- 对老年小鼠进行了12周的有氧运动和外源性虹膜素干预.
- 进行了便16S rRNA测序和代谢分析.
- 使用了海马体miRNA和mRNA测序,RT-PCR,西斑和免疫光.
主要成果:
- 运动和虹素的使用逆转了与年龄相关的认知障碍,并降低了老年小鼠的虹素水平.
- 在干预后观察到肠道微生物群组成和代谢物概况的显著变化.
- 海马中的差异基因表达与TLR4/MyD88炎症途径相关.
结论:
- 衰老引起的认知衰退与通过肠道微生物群变化和TLR4/MyD88通路激活的胰岛素抵抗有关.
- 虹膜素作为一个关键的调解剂,优化肠道微生物群和新陈代谢,可能缓解衰老过程.
- 运动干预表明,在衰老中,运动是对认知健康的有希望的策略.
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