Citrus polymethoxyflavones attenuate metabolic syndrome by regulating gut microbiome and amino acid metabolism.

Published on Jan 1, 2020in Science Advances13.116
· DOI :10.1126/SCIADV.AAX6208
Su-Ling Zeng11
Estimated H-index: 11
(CPU: China Pharmaceutical University),
Shang-Zhen Li3
Estimated H-index: 3
(CPU: China Pharmaceutical University)
+ 6 AuthorsE-Hu Liu30
Estimated H-index: 30
(CPU: China Pharmaceutical University)
Sources
Abstract
Metabolic syndrome (MetS) is intricately linked to dysregulation of gut microbiota and host metabolomes. Here, we first find that a purified citrus polymethoxyflavone-rich extract (PMFE) potently ameliorates high-fat diet (HFD)–induced MetS, alleviates gut dysbiosis, and regulates branched-chain amino acid (BCAA) metabolism using 16S rDNA amplicon sequencing and metabolomic profiling. The metabolic protective effects of PMFE are gut microbiota dependent, as demonstrated by antibiotic treatment and fecal microbiome transplantation (FMT). The modulation of gut microbiota altered BCAA levels in the host serum and feces, which were significantly associated with metabolic features and actively responsive to therapeutic interventions with PMFE. Notably, PMFE greatly enriched the commensal bacterium Bacteroides ovatus, and gavage with B. ovatus reduced BCAA concentrations and alleviated MetS in HFD mice. PMFE may be used as a prebiotic agent to attenuate MetS, and target-specific microbial species may have unique therapeutic promise for metabolic diseases.
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