术后益生菌干预对老年患者术后认知功能障碍的影响:一项随机双盲和安慰剂控制的随机试验
Sunan Gao1, Hongyu Dai1, Qian Hao1
1Department of Anesthesiology, The Second Hospital of Jiaxing, The Second Affiliated Hospital of Jiaxing University, Jiaxing City, Zhejiang Province, China.
Journal of translational medicine
|June 10, 2025
概括
术后益生菌干预显著降低了手术后认知功能障碍 (POCD) 在接受手术的老年患者中的发生率. 这种方法可以通过调节炎症反应和肠道微生物群组成来改善认知功能.
科学领域:
- 老年学是一门学科.
- 神经科学是一个神经科学.
- 微生物学 微生物学
背景情况:
- 术后认知功能障碍 (POCD) 是一个重大的临床挑战,导致长时间住院,增加死亡率和降低生活质量.
- 目前对POCD的预防和治疗策略仍然有限,这凸显了对新型干预措施的需求.
研究的目的:
- 在老年患者中研究POCD的外科手术期间益生菌的预防效果.
- 探索益生菌可以改善术后认知功能的潜在机制.
主要方法:
- 一个随机的,单中心的,双盲试验,涉及190名老年患者 (≥65岁),计划接受选择性下肢整形手术.
- 患者从手术前一天到手术后五天口服接受益生菌或安慰剂.
- 认知功能使用微型精神状态检查 (MMSE) 进行评估,次要结果包括炎症标志物 (IL-1β,IL-6),BDNF,疼痛,日常生活活动和肠道微生物群分析.
主要成果:
- 在益生菌组 (6.7%) 的POCD发病率明显低于对照组 (17.2%) (P=0.028).
- 益生菌干预导致IL-1β和IL-6的血水平显著降低,手术后1-2天BDNF水平提高.
- 在益生菌组中观察到便微生物群组成和肠道代谢物的变化.
结论:
- 术后益生菌干预有效地减少了老年手术患者POCD的发生率.
- 益生菌可以通过减轻术后炎症反应和积极改变肠道微生物群和代谢物来改善认知功能.
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