Metagenomic analysis revealed the potential role of gut microbiome in gout

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

12 Scopus Citations
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Author(s)

  • Yongliang Chu
  • Silong Sun
  • Yufen Huang
  • Qiang Gao
  • Xuefeng Xie
  • Peng Wang
  • Junxia Li
  • Lifeng Liang
  • Xiaohong He
  • Maojie Wang
  • Jianhua Yang
  • Xiumin Chen
  • Chu Zhou
  • Yue Zhao
  • Fen Ding
  • Yi Zhang
  • Xiaodong Wu
  • Xueyuan Bai
  • Jiaqi Wu
  • Xia Wei
  • Xianghong Chen
  • Zhen Yue
  • Xiaodong Fang
  • Qingchun Huang
  • Zhang Wang
  • Runyue Huang

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Detail(s)

Original languageEnglish
Article number66
Journal / Publicationnpj Biofilms and Microbiomes
Volume7
Online published9 Aug 2021
Publication statusPublished - 2021

Link(s)

Abstract

Emerging evidence indicates an association between gut microbiome and arthritis diseases including gout. However, how and which gut bacteria affect host urate degradation and inflammation in gout remains unclear. Here we performed a metagenome analysis on 307 fecal samples from 102 gout patients and 86 healthy controls. Gout metagenomes significantly differed from those of healthy controls. The relative abundances of Prevotella, Fusobacterium, and Bacteroides were increased in gout, whereas those of Enterobacteriaceae and butyrate-producing species were decreased. Functionally, gout patients had greater abundances for genes in fructose, mannose metabolism and lipid A biosynthesis, and lower for genes in urate degradation and short chain fatty acid production. A three-pronged association between metagenomic species, functions and clinical parameters revealed that decreased abundances of species in Enterobacteriaceae were associated with reduced amino acid metabolism and environmental sensing, which together contribute to increased serum uric acid and C-reactive protein levels in gout. A random forest classifier based on three gut microbial genes showed high predictivity for gout in both discovery and validation cohorts (0.91 and 0.80 accuracy), with high specificity in the context of other chronic disorders. Longitudinal analysis showed that uric-acid-lowering and anti-inflammatory drugs partially restored gut microbiota after 24-week treatment. Comparative analysis with obesity, type 2 diabetes, ankylosing spondylitis and rheumatoid arthritis indicated that gout metagenomes were more similar to those of autoimmune than metabolic diseases. Our results suggest that gut dysbiosis was associated with dysregulated host urate degradation and systemic inflammation and may be used as non-invasive diagnostic markers for gout.

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Citation Format(s)

Metagenomic analysis revealed the potential role of gut microbiome in gout. / Chu, Yongliang; Sun, Silong; Huang, Yufen; Gao, Qiang; Xie, Xuefeng; Wang, Peng; Li, Junxia; Liang, Lifeng; He, Xiaohong; Jiang, Yiqi; Wang, Maojie; Yang, Jianhua; Chen, Xiumin; Zhou, Chu; Zhao, Yue; Ding, Fen; Zhang, Yi; Wu, Xiaodong; Bai, Xueyuan; Wu, Jiaqi; Wei, Xia; Chen, Xianghong; Yue, Zhen; Fang, Xiaodong; Huang, Qingchun; Wang, Zhang; Huang, Runyue.

In: npj Biofilms and Microbiomes, Vol. 7, 66, 2021.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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