在类风湿性关节炎患者的肠道失生症,紧结蛋白和炎症:一个横截面研究
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Chronic Salmonella Infection Induced Intestinal Fibrosis
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Arkaitz Mucientes1,2, José Manuel Lisbona-Montañez1,2,3, Natalia Mena-Vázquez1,2
1Instituto de Investigación Biomédica de Málaga y Plataforma en Nanomedicina-IBIMA Plataforma Bionand, 29010 Málaga, Spain.
International journal of molecular sciences
|August 29, 2024
概括
与类风湿性关节炎 (RA) 相关的肠道透性涉及紧密的结节和肠道微生物群的变化. 克劳丁-1水平和特定的细菌,如Veillonella与RA炎症标志物相关.
科学领域:
- 胃肠道学和免疫学
- 风湿病学研究 风湿病学研究
- 微生物组研究 微生物组研究
背景情况:
- 通过紧密结节 (TJs) 调节的肠道透性越来越多地与类风湿性关节炎 (RA) 病原发生有关.
- 关节炎患者经常表现出肠道失调和微生物多样性的减少.
- 肠道平衡的改变与RA的发展和进展有关.
研究的目的:
- 研究肠道透性标记物,肠道微生物群组成和风湿性关节炎患者的炎症状况之间的关系.
- 为了比较RA患者和健康对照者之间的TJ蛋白水平和微生物多样性.
主要方法:
- 横截面研究设计比较RA患者和匹配的健康对照.
- 使用ELISA对紧密结蛋白 (Claudin-1,Zonulin) 的量化.
- 在Ion Torrent S平台上通过下一代测序 (NGS) 进行肠道微生物群分析.
- 评估炎症标志物,包括DAS28,C反应蛋白 (CRP) 和细胞因子 (IL-6,IL-1,TNF-α).
主要成果:
- 在RA患者和对照人群之间观察到克劳丁-1水平的显著差异.
- 克劳丁-1水平与年龄,IL-6和CRP负相关.
- 佐努林水平与年龄和TNF-α有积极的相关性.
- 在RA患者中发现了Claudin-1和CRP之间的负相关性.
- 在高度炎症的RA患者中,Veillonella的丰富性与Claudin-1水平有关.
结论:
- 肠道透性,特别是Claudin-1水平,在类风湿性关节炎中发生变化,并与炎症标志物相关联.
- 肠道微生物群的组成,包括Veillonella属,可能在RA中起到调节肠道屏障功能的作用.
- 这些发现凸显了肠道屏障作为类风湿性关节炎管理中的潜在治疗点.
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