南方医科大学学报 ›› 2016, Vol. 36 ›› Issue (10): 1305-.

• •    下一篇

脑卒中后抑郁症患者肠道菌群的多样性分析

范文涛,闫咏梅,别玉龙,王倩   

  • 出版日期:2016-10-20 发布日期:2016-10-20

Diversity of intestinal microflora in patients with depression after stroke

  • Online:2016-10-20 Published:2016-10-20

摘要: 目的通过检测卒中后抑郁症患者粪便标本的微生物种群分布变化情况,分析患者肠道菌群变化情况与抑郁状态之间的 相互联系,为临床治疗提供新思路。方法通过使用Roche/45 高通量测序平台对32 例卒中后抑郁症患者大便标本中的16S RNA V3区进行定性分析,与30例正常健康成人粪便标本统计数据进行比较。结果与正常健康成人对比卒中后抑郁症患者粪 便中细菌菌群中细菌物种OTU信息量明显增加(P<0.01),多样性指数(Shannon)增大(P<0.05)和物种均一度指标(Evenness)也 有所增加但无统计学差异(P>0.05),肠道菌群丰度在门水平上拟杆菌门,变形菌门,梭杆菌门均较正常健康对照组明显增加(P< 0.05),厚壁菌门数量明显减少(P<0.05)。在科水平上Acidaminococcaceae,Rikenellaceae,Sutterellaceae,Fusobacteriaceae, Porphyromonadaceae,Enterobacteriaceae,比例明显增加(P<0.05) ,Bacteroidaceae,Ruminococcaceae,Prevotellaceae, Lachnospiraceae,Erysipelotrichaceae 细菌比例明显减少(P<0.05)。在属水平上Phascolarctobacterium,Clostridium XIX, Escherichia/Shigella,Roseburia,Lachnospiracea incertae sedis,Blautia,Oscillibacter,Parasutterella,Megamonas 比例明显升高(P< 0.05),Bacteroides,Prevotella,Faecalibacterium,Ruminococcus,Dialister细菌比例明显减少(P<0.05)。结论卒中后抑郁症患者肠 道微生态环境中细菌群落的多样性和均衡性与正常人群存在明显差异。

Abstract: Objective To investigate the changes in the population and distribution intestinal microflora and their relationship with depression in post-stroke patients. Method Fecal specimens were obtained from 32 patients with post-stroke depression and 30 healthy adults for gene sequencing of 16S RNA V3 region of the intestinal microorganism using Roche/45 high-throughput sequencing platform. Results The genus and species of intestinal bacteria showed significant differences between the post-stroke patients and health adults. Conclusion Significant changes in the structure of intestinal flora occur in patients with post-stroke depression.