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J Pharm Biomed Anal. 2018 Nov 30;161:262-272. doi: 10.1016/j.jpba.2018.08.039. Epub 2018 Aug 19.

Identification of naringin metabolites mediated by human intestinal microbes with stable isotope-labeling method and UFLC-Q-TOF-MS/MS.

Author information

1
Guangdong Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, China; Shenzhen Research Institute of Sun Yat-sen University, Shenzhen 518057, China.
2
Guangdong Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, China.
3
Artis-chem Co. Ltd., Shanghai 201203, China.
4
Guangdong Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, China; Shenzhen Research Institute of Sun Yat-sen University, Shenzhen 518057, China. Electronic address: yaohliang@mail.sysu.edu.cn.

Abstract

Widely presented in medicinal plants, naringin is one of the major flavanones with various pharmaceutical bioactivities. After oral administration, naringin predominantly undergoes metabolisms mediated by liver cytochrome P450 and gut microbes, while its human microbes-mediated metabolic profiling is still largely obscure due to the endogenous interferences, which makes it extremely difficult to analyze metabolites precisely. In this study, we aim of systematically investigating the biotransformation of naringin mediated by human intestinal microbes through applying stable isotope-labeling method. [2',3',5',6'-D4]naringin was synthesized and incubated anaerobically with human gut microbes. A total of 13 microbial metabolites were detected and identified by UFLC-Q-TOF-MS/MS, among which 5 were reported for the first time. Furthermore, the proposed metabolic pathway revealed that naringin went through extensive phase I metabolism in human intestinal microbes. Of note, diverse metabolic profiles of naringin among human participants were obtained, which could be attributed to the distinct gut microbiota compositions of individuals.

KEYWORDS:

Human intestinal microbe; Metabolite; Naringin; Stable isotope-labeling; UFLC-Q-TOF-MS/MS

PMID:
30172881
DOI:
10.1016/j.jpba.2018.08.039
[Indexed for MEDLINE]

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