对微生物群-肠-大脑轴的多学科洞察力以及对腹腔外科手术后认知改善的洞察力
Qiaoyuan Xiang1, Minhua Yu2, Qi Cai1
1Dapartment of Neurology, Zhongnan Hospital of Wuhan University, No.169 Donghu Street, Wuhan, Hubei, 430000, China.
Journal of translational medicine
|October 17, 2024
概括
减肥手术通过改变肠道微生物群和代谢物来改善认知功能,通过微生物群-肠道-大脑轴影响大脑网络. 这项研究为手术后的饮食和益生菌干预提供了洞察力.
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
- 腹部外科 腹部外科
背景情况:
- 减肥手术会影响体重,肠道微生物群和认知能力,但机制尚不清楚.
- 微生物群-肠-大脑轴 (MGBA) 参与了这些变化.
- 这项研究通过MGBA调查了LSG对认知的影响.
研究的目的:
- 探索微生物群-肠-大脑轴在减肥手术后认知增强中的作用.
- 为了确定与认知变化相关的特定肠道微生物群和血清代谢物.
- 分析大脑功能连接的变化.
主要方法:
- 39名肥胖患者接受了腹腔镜袖子胃切除术 (LSG).
- 收集的数据包括人体测量,血清/便样本,认知测试和rs-fMRI.
- 分析包括16SrRNA测序,代谢学,神经成像和相关性分析.
主要成果:
- LSG导致显著的体重减轻 (28%) 和改善记忆力和执行功能.
- 肠道微生物群的多样性和丰富性增加,组成发生了变化.
- 观察到229个血清代谢物和大脑连接 (FPN,DMN,SN) 的显著变化.
- 关键的微生物群 (如Akkermansia) 和代谢物 (如Glycine) 与认知和大脑网络变化相关.
结论:
- 微生物群-肠-大脑轴在减肥后的认知增强手术中起着病理生理学作用.
- 这些发现支持在饮食调整和益生菌使用方面的临床应用.
- 需要进一步的研究来充分阐明这些机制.
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