在肝硬化患者的TIPS后肠道微生物组变化和肝脑病变
Shengpeng Li1, Zhengguo Xu1, Hua Diao1
1Department of Gastroenterology, Second Affiliated Hospital, Army Medical University, Chongqing, 400037, China.
Journal of translational medicine
|July 4, 2025
概括
肠道微生物Phocaeicola vulgatus可能在经过内肝脏移植系统 (TIPS) 程序后预测肝脏脑病变. 增加的P. vulgatus与更高的氨水平相关,并且与肝硬化患者的肝脏脑病风险有关.
科学领域:
- 微生物组研究的研究.
- 胃肠病学 胃肠病学
- 临床预测建模临床预测建模
背景情况:
- 穿性肝内移植系统分流 (TIPS) 对于管理肝硬化中门脉压并发症至关重要.
- 肝脑病变 (HE) 是 TIPS 后的一个显著的术后风险.
- 准确的HE预测对于优化TIPS应用至关重要.
研究的目的:
- 调查肠道微生物群在TIPS后预测肝脑病变 (HE) 中的作用.
- 为了确定与HE发展相关的特定微生物生物标志物.
- 开发用于高等教育风险分层的预测模型.
主要方法:
- 67名TIPS前后患者的便样本的基因组测序.
- 对微生物物种丰富度和MetaCyc通路的分析.
- 机器学习模型的开发,以预测HE和血液氨水平.
主要成果:
- 观察到TIPS后的Focaeicola vulgatus的丰度增加.
- P. vulgatus的丰富性与血液氨量升高正相关.
- 微生物群的改变,包括减少尿素循环,与HE的发展有关.
结论:
- 科拉 (Phocaeicola vulgatus) 显示出作为TIPS后的HE预测生物标志物的潜力.
- 的氨代谢能力与HE病原发生有关.
- 这些发现支持基于微生物组的风险分层和个性化干预方法.
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