实用医学杂志 ›› 2021, Vol. 37 ›› Issue (23): 3020-3025.doi: 10.3969/j.issn.1006⁃5725.2021.23.012

• 临床研究 • 上一篇    下一篇

胃息肉患者胃液微生态分析与功能预测

张冉1 李兰1,2 夏华向1,2 谢文瑞1,2 何兴祥1,2   

  1. 1 广东药科大学附属第一医院消化内科(广州510000);2 广东省微生态治疗工程技术研究中心(广州 510000)

  • 出版日期:2021-12-10 发布日期:2021-12-10
  • 通讯作者: 何兴祥 E⁃mail:hexingxiang@gdpu.edu.cn
  • 基金资助:
    广州市科技创新委员会民生科技攻关计划项目(编号:201803010037)

High throughput sequencing and bioinformatic analysis of gastric microbiota in gastric juice of patients with gastric polyps

ZHANG Ran*,LI Lan,XIA Huaxiang,XIE Wenrui,HE Xingxiang.   

  1. Department of Gastro⁃ enterology,the First Affiliated Hospital of Guangdong Pharmaceutical University,Guangzhou 510000,China

  • Online:2021-12-10 Published:2021-12-10
  • Contact: HE Xingxiang E⁃mail:hexingxiang@gdpu.edu.cn

摘要:

目的 探讨幽门螺杆菌(Helicobacter pylori,Hp)对胃息肉患者胃液微生态的影响。方法 纳入接受胃镜检查及 Hp 检测的患者。胃镜检查下胃黏膜未见异常且 Hp 阴性者为健康组,胃息肉者为疾 病组。胃息肉者分为息肉 Hp(+)组与息肉 Hp(-)组。留取胃液,进行 16SrRNA 基因测序及生物信息学分 析,对比不同组间菌群和功能基因之间的差异。结果 (1)健康组、息肉 Hp(-)组和息肉 Hp(+)组的胃液 菌群 α 多样性无明显差异,β 多样性差异有统计学意义(P < 0.05);(2)在属水平上,息肉 Hp(+)组比息肉 Hp(-)组 Lachnoanaerobaculum、Oribacterium 丰度升高;息肉 Hp(-)组比息肉 Hp(+)组需氧菌丰度显著升高 P < 0.05);(3)健康组、息肉 Hp(-)组及息肉 Hp(+)组菌群在表征网络的平均聚类系数等网络拓扑结构 参数存在差异。结论 幽门螺杆菌感染扰乱了胃微生态平衡,使胃息肉患者胃液微生态发生紊乱,可能 影响细菌⁃细菌的相互作用以及细菌⁃宿主的作用。

关键词:

胃液,  , 胃息肉,  , 胃微生态,  , 幽门螺杆菌

Abstract:

Objective To investigate the effect of Hp on gastric juice microbiota in patients with gastric polyps. Methods Patients undergoing gastroscopy and Hp were selected. Patients with no abnormality of gastric mucosa and negative Hp under gastroscopy were assigned to healthy group,and patients with gastric polyps were assigned to case group. Gastric polyps were divided into polyp Hp(+)group and polyp Hp(-)group. Gastric juice was taken for 16SrRNA Gene Sequencing and bioinformatics analysis to compare the differences of microbiota and functional genes among different groups. Results There were no significant difference in α diversity and signifi⁃ cant differences in β diversity among the three groups(P < 0.05). At the genus level,the abundance of Lachnoan⁃ aerobaculum and Oribacterium in polyp Hp(+)group was higher than that in polyp Hp(-)group. The abundance of aerobic bacteria in polyp Hp(-)group was significantly higher than that in the polyp Hp(+)group(P < 0.05). There were differences among the three groups of microbiota in network topology parameters such as average clustering coefficient. Conclusion Hp infection disturbed the gastric microecological balance and made the gastric microbiota of gastric polyps disordered,which may affect the interaction between bacteria and bacteria and the role of bacteria host.

Key words:

gastric juice, gastric polyps, gastric microbiota, Helicobacter pylori