改变的肠道微生物组在老年小鼠的AKI到CKD过渡中发挥着重要作用
Myung-Gyu Kim1, Won Yong Cho1, Suk Min Chung1
1Division of Nephrology, Department of Internal Medicine, Korea University Anam Hospital, Seoul, Republic of Korea.
Frontiers in medicine
|November 29, 2023
概括
衰老加剧了急性损伤 (AKI) 后的炎和纤维化,通过肠交叉. 益生菌部分改善了结果,突出了肠道微生物组在老年人慢性病 (CKD) 进展中的作用.
科学领域:
- 老年学是一门学科.
- 腎臟病學 (nephrology) 是一種醫學專業.
- 胃肠病学 胃肠病学
背景情况:
- 从急性损伤 (AKI) 过渡到慢性病 (CKD) 是一个重要的临床问题,特别是在老年人中.
- 脏-肠道交叉越来越被认为是病进展的关键因素.
研究的目的:
- 在老年小鼠中调查肠交叉在AKI向CKD进展中的作用.
- 探索肠道微生物群和益生菌补充剂对这一过程的影响.
主要方法:
- 在年轻和老年小鼠中诱导双边缺血-反损伤 (IRI).
- 肠道和脏炎症,肠道微生物组合和功能在28天内被评估.
- 评估了益生菌补充剂 (Bifidobacterium bifidum BGN4和Bifidobacterium longum BORI) 的影响.
主要成果:
- 与年轻小鼠相比,老年小鼠在IRI后表现出长期的肠道和炎,失能症,以及恶化的功能障碍和纤维化.
- 益生菌补充剂减少了肠道炎症,但没有解决肠道泄漏.
- 益生菌改善了M1主导性炎,导致更好的功能和老年小鼠的纤维化减少.
结论:
- 通过肠轴恶化的慢性炎症是老年人AKI到CKD过渡的关键机制.
- 用益生菌向肠道微生物群可能提供一种治疗策略,以减轻老年人群中脏病进展.
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