对阿尔茨海默病患者的肠型鉴定
Guang-Sheng Liu1, Yang Song2, Jin-Sheng Yan1
1Department of Neurosurgery, The Second Hospital of Shanxi Medical University, Taiyuan, China.
Journal of translational medicine
|March 11, 2025
概括
阿尔茨海默病 (AD) 与肠道细菌肠型有关. 埃舍里希亚_希格拉肠型可能会增加AD风险,而细菌菌类肠型显示出潜在的保护因素,如Butyricicoccus和Parabacteroides.
科学领域:
- 微生物组研究的研究.
- 神经退行性疾病是一种神经退行性疾病.
- 肠-大脑轴 肠-大脑轴
背景情况:
- 阿尔茨海默病 (AD) 是一种进展性神经退行性疾病,影响认知功能.
- 阿尔茨海默病的发病越来越多地与肠道微生物群和肠道菌群的改变有关.
- 了解肠道微生物组的组成,或肠型,可以提供关于AD发展的见解.
研究的目的:
- 为了探索阿尔茨海默病患者中不同的肠型.
- 使用机器学习识别与不同肠型相关的关键细菌物种.
- 分析物种共发生网络,以了解AD中的微生物相互作用.
主要方法:
- 来自AD患者和健康对照的便样本的16SrRNA测序.
- 在基因层面使用QIIME2.2.进行型聚类.
- 开发深度神经网络 (DNN) 模型,在每个肠型内对AD进行分类.
主要成果:
- 确定了三个肠型:埃舍里希亚_希格拉 (ET-E),便细菌 (ET-F) 和细菌类 (ET-B).
- ET-E与阿克尔曼西亚在阿尔茨海默病中缺席有关,这表明它是一个潜在的危险因素.
- ET-B显示了有益细菌Butyricicoccus和Parabacteroides的高表达,表明潜在的保护作用.
结论:
- ET-E肠型可能会使个体易患阿尔茨海默病.
- ET-B肠型似乎与较轻的AD症状有关,具有特定的细菌作为保护因素.
- 通过了解肠型来调节肠道微生物群对于管理AD的肠-大脑轴至关重要.
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