Bisphenol A alters gut microbiome : Comparative metagenomics analysis

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

125 Scopus Citations
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  • Keng-Po Lai
  • Yan-Tung Chung
  • Rong Li
  • Hin-Ting Wan
  • Chris Kong-Chu Wong


Original languageEnglish
Pages (from-to)923-930
Journal / PublicationEnvironmental Pollution
Online published21 Aug 2016
Publication statusPublished - Nov 2016


Mounting evidence has shown that an alteration of the gut microbiota is associated with diet, and plays an important role in animal health and metabolic diseases. However, little is known about the influence of environmental contaminants on the gut microbial community. Bisphenol A (BPA), which is widely used for manufacturing plastic products, has recently been classified as an environmental obesogen. Although many studies have demonstrated the metabolic-disrupting effects of BPA on liver and pancreatic functions, the possible effects of this synthetic compound on the metabolic diversity of the intestinal microbiota is unknown. Using 16S rRNA gene sequencing analysis on caecum samples of CD-1 mice, the present study aimed to test the hypothesis that dietary BPA intake may influence the gut microbiota composition and functions, an important attributing factor to development of the metabolic syndrome. A high-fat diet (HFD) and high-sucrose diet (HSD) were included as the positive controls for comparing the changes in the intestinal microbial profiles. Our results demonstrated a significant reduction of species diversity in the gut microbiota of BPA-fed mice. Alpha and beta diversity analyses showed that dietary BPA intake led to a similar gut microbial community structure as that induced by HFD and HSD in mice. In addition, comparative analysis of the microbial communities revealed that both BPA and a HFD favored the growth of Proteobacteria, a microbial marker of dysbiosis. Consistently, growth induction of the family Helicobacteraceae and reduction of the Firmicutes and Clostridia populations were observed in the mice fed BPA or a HFD. Collectively, our study highlighted that the effects of dietary BPA intake on the shift of microbial community structure were similar to those of a HFD and HSD, and revealed microbial markers for the development of diseases associated with an unstable microbiota.

Research Area(s)

  • BPA, Gut, Metagenomics, Microbiome, Sequencing

Citation Format(s)

Bisphenol A alters gut microbiome: Comparative metagenomics analysis. / Lai, Keng-Po; Chung, Yan-Tung; Li, Rong et al.
In: Environmental Pollution, Vol. 218, 11.2016, p. 923-930.

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review