Journal of Dali University ›› 2024, Vol. 9 ›› Issue (2): 24-31.

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Effects of Intestinal Flora and Serum Metabolites on Visceral Sensitivity in Post-Infection Irritable Bowel Syndrome

Yan Bo, Pan Ying, Tian Pingping   

  1. (College of Medical Technology, Anhui Medical College, Hefei 230601, China)
  • Received:2023-09-04 Revised:2023-09-19 Online:2024-02-15 Published:2024-02-23

Abstract: Objective:To investigate the changes of intestinal flora and serum metabolites in mice with post-infection irritable bowel
syndrome (PI-IBS), and analyze the effects on visceral sensitivity. Methods:The PI-IBS model was prepared by Trichinella spiralis
infection method, and the intestinal microbial changes of PI-IBS mice and normal mice were analyzed by 16S rDNA sequencing. The
changes of serum metabolites were analyzed by serum metabolomics. Spearman's correlation analysis was used to analyze the
correlation between different metabolites and different flora in the two groups. Results:The results of 16S rDNA sequencing showed
that mouse gut metagenome and g_Alistipes were the critical gut microbes in PI-IBS mice. A total of 22 intergroup differential
metabolites were identified by metabolomics analysis, involving 16 metabolic pathways, mainly including biosynthesis of amino acids,
cysteine and methionine metabolism, arginine biosynthesis, synaptic vesicle cycle and other pathways. Conclusion:Changes in
intestinal flora and serum metabolites are involved in the production of visceral hypersensitivity to PI-IBS.

Key words: post-infection irritable bowel syndrome, 16S rDNA sequencing, intestinal flora, metabolomics

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