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在老年雌性TgF344-AD大鼠中,代谢途径的微生物驱动性改变和认知功能受损
Abbi R Hernandez1, Erik Parker2, Maham Babar1
1Department of Medicine, Division of Geriatrics, Gerontology & Palliative Care, University of Alabama at Birmingham, Birmingham, AL 35205, USA.
Aging brain
|June 17, 2024
概括
阿尔茨海默病与肠道微生物组的变化有关,影响认知和新陈代谢. 准肠道健康可能为阿尔茨海默病提供新的治疗策略.
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:
- 阿尔茨海默病 (AD) 影响认知,神经病理和生活质量.
- 改变的肠道微生物组 (GMB) 组成和新陈代谢与AD有关.
- 了解GMB在AD进展中的作用对于治疗开发至关重要.
研究的目的:
- 在老鼠阿尔茨海默病模型中调查认知功能,肠道微生物组变化和代谢变化之间的关系.
- 为了确定特定的肠道微生物群落和代谢途径受影响在AD.
主要方法:
- 在多个领域的老年雌性TgF344-AD和野生型大鼠的认知特征.
- 代谢表型和GMB测序在整个肠道 (十二指肠,直肠,大肠,结肠,便).
- 神经病理学评估和功能丰度预测 (PICRUSt2) 的GMB标志物.
主要成果:
- TgF344-AD大鼠表现出显著的认知障碍和区域特定的GMB失调.
- 佳能对应分析揭示了GMB变化,认知缺陷和代谢因素之间的相关性.
- 参与重要代谢途径的肠道微生物群落在AD大鼠中发生了显著的改变,特别是在对于碳水化合物消化至关重要的肠道部分.
结论:
- 肠道功能障碍与阿尔茨海默氏症的认知障碍有关,可能是通过与代谢相关的酶途径的改变.
- 这些微生物组和代谢变化在特定的肠道部分比便样本更明显.
- 针对肠道和微生物群健康,为阿尔茨海默病治疗提供了一个有希望的治疗途径.
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