便微生物群与炎症性肠病中的肠外表现有关
Sandra Hertz1,2,3, Jacqueline Moltzau Anderson3, Hans Linde Nielsen2,4
1Department of Infectious Diseases, Aalborg University Hospital, Aalborg, Denmark.
Annals of medicine
|April 22, 2024
概括
患有炎症性肠病 (IBD) 和肠外表现症 (EIM) 的患者与没有EIM的患者相比,肠道微生物群的组成不同. 肠道细菌的这种差异可能在EIMs的发展中发挥作用.
科学领域:
- 胃肠病学 胃肠病学
- 微生物学 微生物学
- 免疫学 免疫学 免疫学
背景情况:
- 炎症性肠病 (IBD) 经常涉及胃肠道外的炎症,称为肠外表现 (EIM).
- EIMs的确切原因尚不清楚,但肠道微生物群的改变在IBD患者中很常见.
- 肠道微生物群和IBD中的EIM之间的联系尚未得到充分理解.
研究的目的:
- 调查和比较IBD患者的肠道微生物群组成,有和没有EIMs.
- 确定与IBD中EIMs存在相关的特定细菌差异.
主要方法:
- 在131名丹麦IBD患者 (86名有EIM,45名没有) 的便样本上进行了16SrRNA测序.
- 使用各种统计方法分析了微生物群的多样性和组成,包括多样性指数,距离矩阵和差异丰度测试.
- 细菌协同关联模块使用组成数据 (SparCC) 的稀疏相关性被确定.
主要成果:
- 与没有EIM的IBD患者相比,有EIM的IBD患者表现出较低的便微生物多样性和独特的微生物群组成.
- 像*Agathobacter*和*Blautia*这样的特定细菌减少了,而EIM的IBD患者的*Eggerthella lenta*增加了.
- 三种细菌协会模块,包括与*Agathobacter*和*Faecalibacterium*相关的模块,与EIMs负相关.
结论:
- 患有EIM的IBD患者的肠道微生物组合与没有EIM的患者显著不同.
- 这些独特的微生物特征可能在IBD中EIMs的病原发生过程中至关重要.
- 对肠道微生物群的作用进行进一步的研究可能会导致对EIMs的新治疗策略.
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