摘要
目的探讨幽门螺杆菌(H.pylori)相关慢性非萎缩性胃炎和慢性萎缩性胃炎的胃菌群特征及差异。方法采用前瞻性研究设计,将24例H.pylori感染的慢性胃炎患者分为慢性非萎缩性胃炎组(n=18)和慢性萎缩性胃炎组(n=6)。测定2组的胃黏膜菌群特征,并进行Alpha和Beta多样性分析及物种相关性分析。结果2组胃菌群均主要包括变形菌门、拟杆菌门、厚壁菌门、放线菌门和梭杆菌门。2组胃菌群的物种多样性和丰度差异具有统计学意义(ANOSIM分析,P=0.046)。慢性萎缩性胃炎组的梭杆菌属(P=0.023)、纤毛菌属(P=0.047)、普雷沃菌属(P=0.016)、月形单胞菌属(P=0.042)和密螺旋体属(P=0.006)显著富集,H.pylori呈下降趋势(P=0.218)。胃黏膜菌群的部分菌属与H.pylori呈负相关性,且慢性萎缩性胃炎的胃黏膜菌群中与H.pylori负相关的菌属种类明显减少。结论慢性萎缩性胃炎的胃黏膜中梭杆菌属、纤毛菌属、普雷沃菌属、月形单胞菌属和密螺旋体属显著富集,与慢性胃炎进展相关。
Objective To investigate the characteristics and differences of gastric flora in chronic non-atrophic gastritis and chronic atrophic gastritis associated with Helicobacter pylori(H.pylori).Methods A prospective study was adopted,and 24 patients with chronic gastritis caused by H.pylori infection were divided into chronic non-atrophic gastritis group(n=18)and chronic atrophic gastritis group(n=6).Characteristics of gastric mucosal flora in both groups were determined,and Alpha and Beta diversity analyses and species correlation analysis were performed.Results The gastric flora in both groups were mainly consisted of Proteobacteria,Bacteroidetes,Firmicutes,Actinobacteria,and Fusobacteria.Significant differences in species diversity and abundance were observed between the two groups(ANOSIM analysis,P=0.046).Fusobacterium(P=0.023),Leptotrichia(P=0.047),Prevotella(P=0.016),Sphingomonas(P=0.042),and Treponema(P=0.006)were significantly enriched in the chronic atrophic gastritis group,and H.pylori showed a decreasing trend(P=0.218).Some species of gastric mucosal flora showed negative correlations with H.pylori,and the number of species negatively associated with H.pylori in the gastric mucosal flora of chronic atrophic gastritis was significantly reduced.Conclusion In the gastric mucosa of chronic atrophic gastritis,the Fusobacterium,Leptotrichia,Prevotella,Sphingomonas,and Treponema are significantly enriched and associated with the progression of chronic gastritis.
作者
牛占岳
石岩岩
李司柱
薛艳
NIU Zhanyue;SHI Yanyan;LI Sizhu;XUE Yan(Department of Gastroenterology,the Third Hospital of Peking University,Beijing,100191;Clinical Epidemiology Research Center,the Third Hospital of Peking University,Beijing,100191)
出处
《实用临床医药杂志》
CAS
2024年第1期56-61,共6页
Journal of Clinical Medicine in Practice
基金
中国医药卫生事业发展基金会资助课题(LM2023782)
北京大学第三医院临床重点项目(BYSY2017026,BYSYZD2021034)。
关键词
幽门螺杆菌
胃菌群
幽门螺杆菌相关慢性胃炎
慢性非萎缩性胃炎
慢性萎缩性胃炎
差异分析
Helicobacter pylori
gastric flora
Helicobacter pylori associated chronic gastritis
chronic non-atrophic gastritis
chronic atrophic gastritis
differential analysis
