肠道开始性Parabacteroides distasonis通过调节肠道微生物群-肠道-大脑轴在急性缺血性中风中发挥神经保护作用
Hongming Wei1, Lu Zhan2, Xinhuang Lv1
1Department of Geriatrics, the Second Affiliated Hospital, Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325027, China.
Journal of translational medicine
|November 5, 2024
概括
这项研究揭示了Parabacteroides distasonis可以通过调节肠道微生物群-肠道-大脑轴来改善患有高尿血症的急性缺血性中风. 补充这种有益细菌为这种疾病提供了一种新的治疗策略.
科学领域:
- 微生物学 微生物学
- 神经学 神经学
- 胃肠病学 胃肠病学
背景情况:
- 高尿路血是急性缺血性中风 (AIS) 的独立危险因素.
- 肠道微生物群在高尿血和AIS中起作用,但其与高尿血症 (HAS) 的AIS的联系尚不清楚.
- 关于肠道微生物群在HAS.病变发生过程中的作用的数据有限.
研究的目的:
- 为了研究HAS患者的肠道微生物群组成.
- 在HAS的老鼠模型中探索Parabacteroides distasonis的治疗潜力.
- 阐明P. distasonis在缓解HAS.的潜在机制.
主要方法:
- 16S rRNA测序以分析HAS患者和对照组的肠道微生物群.
- 通过中脑动脉封闭 (MCAO) 建立HAS大鼠模型.
- 评估P. distasonis治疗后的神经缺陷,脑病理,血脑屏障 (BBB) 完整性,氧化应激,炎症和血管化.
主要成果:
- 在HAS和非HAS患者之间肠道微生物群的显著差异,在HAS中减少了Parabacteroides的丰度.
- 补充P. distasonis改善了神经功能,减少了大脑损伤,并恢复了HAS大鼠的BBB完整性.
- 治疗P. distasonis减少了氧化应激和炎症,抑制了NF-κB通路,并促进了血管修复.
结论:
- P. distasonis 在 HAS. 病原发生过程中起着至关重要的作用.
- 普. distasonis的治疗作用包括调节肠道微生物群-肠道-大脑轴.
- P. distasonis代表了对HAS的有前途的新疗法策略.
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