Gastric microbiota and predicted gene functions are altered after subtotal gastrectomy in patients with gastric cancer

Ching Hung Tseng, Jaw Town Lin, Hsiu J. Ho, Zi Lun Lai, Chang Bi Wang, Sen Lin Tang*, Chun Ying Wu

*此作品的通信作者

研究成果: Article同行評審

64 引文 斯高帕斯(Scopus)

摘要

Subtotal gastrectomy (i.e., partial removal of the stomach), a surgical treatment for early-stage distal gastric cancer, is usually accompanied by highly selective vagotomy and Billroth II reconstruction, leading to dramatic changes in the gastric environment. Based on accumulating evidence of a strong link between human gut microbiota and host health, a 2-year follow-up study was conducted to characterize the effects of subtotal gastrectomy. Gastric microbiota and predicted gene functions inferred from 16S rRNA gene sequencing were analyzed before and after surgery. The results demonstrated that gastric microbiota is significantly more diverse after surgery. Ralstonia and Helicobacter were the top two genera of discriminant abundance in the cancerous stomach before surgery, while Streptococcus and Prevotella were the two most abundant genera after tumor excision. Furthermore, N-nitrosation genes were prevalent before surgery, whereas bile salt hydrolase, NO and N2O reductase were prevalent afterward. To our knowledge, this is the first report to document changes in gastric microbiota before and after surgical treatment of stomach cancer.

原文English
文章編號20701
期刊Scientific reports
6
DOIs
出版狀態Published - 10 2月 2016

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