Frontiers in Microbiology (Dec 2022)

Characteristics of intestinal microbiota in C57BL/6 mice with non-alcoholic fatty liver induced by high-fat diet

  • Guangwen Yan,
  • Shuaibing Li,
  • Shuaibing Li,
  • Yuhang Wen,
  • Yuhang Wen,
  • Yadan Luo,
  • Yadan Luo,
  • Jingrong Huang,
  • Jingrong Huang,
  • Baoting Chen,
  • Baoting Chen,
  • Shuya Lv,
  • Shuya Lv,
  • Lang Chen,
  • Lang Chen,
  • Lvqin He,
  • Lvqin He,
  • Manli He,
  • Manli He,
  • Qian Yang,
  • Qian Yang,
  • Zehui Yu,
  • Zehui Yu,
  • Wudian Xiao,
  • Wudian Xiao,
  • Yong Tang,
  • Yong Tang,
  • Weiyao Li,
  • Jianhong Han,
  • Jianhong Han,
  • Fangfang Zhao,
  • Shumin Yu,
  • Fang Kong,
  • Fang Kong,
  • Benazir Abbasi,
  • Hongmei Yin,
  • Congwei Gu,
  • Congwei Gu,
  • Congwei Gu

DOI
https://doi.org/10.3389/fmicb.2022.1051200
Journal volume & issue
Vol. 13

Abstract

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IntroductionAs a representation of the gut microbiota, fecal and cecal samples are most often used in human and animal studies, including in non-alcoholic fatty liver disease (NAFLD) research. However, due to the regional structure and function of intestinal microbiota, whether it is representative to use cecal or fecal contents to study intestinal microbiota in the study of NAFLD remains to be shown.MethodsThe NAFLD mouse model was established by high-fat diet induction, and the contents of the jejunum, ileum, cecum, and colon (formed fecal balls) were collected for 16S rRNA gene analysis.ResultsCompared with normal mice, the diversity and the relative abundance of major bacteria and functional genes of the ileum, cecum and colon were significantly changed, but not in the jejunum. In NAFLD mice, the variation characteristics of microbiota in the cecum and colon (feces) were similar. However, the variation characteristics of intestinal microbiota in the ileum and large intestine segments (cecum and colon) were quite different.DiscussionTherefore, the study results of cecal and colonic (fecal) microbiota cannot completely represent the results of jejunal and ileal microbiota.

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