Anti-obesity mechanism of Ganpu tea revealed by microbiome, metabolome and transcriptome analyses

Food Chem. 2023 Jun 30:412:135048. doi: 10.1016/j.foodchem.2022.135048. Epub 2022 Dec 22.

Abstract

In this study, the anti-obesity mechanism of Ganpu tea (GPT) from the perspectives of microbiome, metabolome and transcriptome was investigated. GPT significantly reduced the high-fat-diet (HFD)-induced levels of inflammatory cytokines and the expansion of lipid droplets and white adipose tissue. GPT also improved HFD-induced gut microbiome imbalance by significantly reducing the proportion of Firmicutes to Bacteroidota. Metabolomic data showed that HFD-induced metabolic disorder was regulated by GPT and probably characterised by being related to 4-aminobutyraldehyde and 5-acetylamino-6-amino-3-methyluracil. Transcriptome showed that the improvement of obesity was mainly related to the IL-17 signaling pathway and the metabolism of xenobiotics by cytochrome P450. Spearman's correlation analysis indicated that gut microbiota were significantly correlated with inflammatory factors, genes and metabolites. Metabolome-transcriptome analysis showed that GPT reversed obesity mainly through the carbohydrate metabolism, amino acid metabolism and lipid metabolism.Collectively, GPT may be used as a health drink to prevent or treat obesity.

Keywords: Ganpu tea; Metabolome; Microbiome; Obesity; Transcriptome.

MeSH terms

  • Animals
  • Diet, High-Fat
  • Gastrointestinal Microbiome* / genetics
  • Gene Expression Profiling
  • Lipid Metabolism / genetics
  • Metabolome
  • Mice
  • Mice, Inbred C57BL
  • Obesity* / drug therapy
  • Obesity* / genetics
  • Obesity* / metabolism
  • Tea / chemistry

Substances

  • Tea