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Abstract Title:

Aged citrus peel (chenpi) extract causes dynamic alteration of colonic microbiota in high-fat diet induced obese mice.

Abstract Source:

Food Funct. 2020 Mar 11. Epub 2020 Mar 11. PMID: 32159537

Abstract Author(s):

Man Zhang, Jieyu Zhu, Xin Zhang, Deng-Gao Zhao, Yan-Yan Ma, Dongli Li, Chi-Tang Ho, Qingrong Huang

Article Affiliation:

Man Zhang

Abstract:

Aged citrus peels (chenpi) have been used as a dietary supplement for gastrointestinal health maintenance in China. Recently, it was reported to exhibit anti-obesity activity. However, the relationship between the modulation effect of chenpi on gut microbiota and obesity prevention is not clearly understood. In this study, mice were fed with a high-fat diet (HFD), HFD supplemented with 0.25%- and 0.5%-chenpi extract, and normal diet, respectively, for 11 weeks. Chenpi extract significantly increased fecal short chain fatty acids by 43% for acetic acid and 86% for propionic acid. In addition, chenpi could decrease the prevalence of Proteobacteria and the ratio of Firmicutes to Bacteroidetes by about 88% and 70%, respectively. Moreover, this study was the first work to demonstrate the dynamics of two beneficial bacteria-Akkermansia spp. and Allobaculum spp. in a dose- and time-dependent manner for chenpi treatment via monitoring the dynamic change of the gut microbiota. Metagenomic analysis of the gut microbiota showed that several pathways, such as a two-component system, a tight junction, Staphylococcus aureus infection and others, were enhanced dynamically. The improved biological process of metabolism especially in benzoate derivatives might refer to the increased metabolic transformation of polymethoxyflavones from chenpi in the colon. Our study indicated that the modulation effect of chenpi on the gut microbiota may be an important pathway for its anti-obesity mechanisms.

Study Type : Animal Study
Additional Links
Additional Keywords : Microbiota : CK(396) : AC(101)

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