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Fang JB, Nikolić D, Lankin DC, Simmler C, Chen SN, Ramos Alvarenga RF, Liu Y, Pauli GF, van Breemen RB. Formation of (2 R)- and (2 S)-8-Prenylnaringenin Glucuronides by Human UDP-Glucuronosyltransferases. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2019; 67:11650-11656. [PMID: 31554401 PMCID: PMC6942495 DOI: 10.1021/acs.jafc.9b04657] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Occurring in hops (Humulus lupulus) and beer as a racemic mixture, (2R,2S)-8-prenylnaringenin (8-PN) is a potent phytoestrogen in hop dietary supplements used by women as alternatives to conventional hormone therapy. With a half-life exceeding 20 h, 8-PN is excreted primarily as 8-PN-7-O-glucuronide or 8-PN-4'-O-glucuronide. Human liver microsomes and 11 recombinant human UDP-glucuronosyltransferases (UGTs) were used to catalyze the formation of the two oxygen-linked glucuronides of purified (2R)-8-PN and (2S)-8-PN, which were subsequently identified using mass spectrometry and nuclear magnetic resonance spectroscopy. Formation of (2R)- and (2S)-8-PN-7-O-glucuronides predominated over the 8-PN-4'-O-glucuronides except for intestinal UGT1A10, which formed more (2S)-8-PN-4'-O-glucuronide. (2R)-8-PN was a better substrate for all 11 UGTs except for UGT1A1, which formed more of both (2S)-8-PN glucuronides than (2R)-8-PN glucuronides. Although several UGTs conjugated both enantiomers of 8-PN, some conjugated just one enantiomer, suggesting that human phenotypic variation might affect the routes of metabolism of this chiral estrogenic constituent of hops.
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Affiliation(s)
- Jin-Bo Fang
- School of Pharmacy, Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
- UIC/NIH Center for Botanical Dietary Supplements Research, PCRPS and Department of Pharmaceutical Sciences, University of Illinois College of Pharmacy, 833 S. Wood Street, Chicago, IL 60612, USA
| | - Dejan Nikolić
- UIC/NIH Center for Botanical Dietary Supplements Research, PCRPS and Department of Pharmaceutical Sciences, University of Illinois College of Pharmacy, 833 S. Wood Street, Chicago, IL 60612, USA
| | - David C Lankin
- UIC/NIH Center for Botanical Dietary Supplements Research, PCRPS and Department of Pharmaceutical Sciences, University of Illinois College of Pharmacy, 833 S. Wood Street, Chicago, IL 60612, USA
| | - Charlotte Simmler
- UIC/NIH Center for Botanical Dietary Supplements Research, PCRPS and Department of Pharmaceutical Sciences, University of Illinois College of Pharmacy, 833 S. Wood Street, Chicago, IL 60612, USA
| | - Shao-Nong Chen
- UIC/NIH Center for Botanical Dietary Supplements Research, PCRPS and Department of Pharmaceutical Sciences, University of Illinois College of Pharmacy, 833 S. Wood Street, Chicago, IL 60612, USA
| | - Rene F. Ramos Alvarenga
- UIC/NIH Center for Botanical Dietary Supplements Research, PCRPS and Department of Pharmaceutical Sciences, University of Illinois College of Pharmacy, 833 S. Wood Street, Chicago, IL 60612, USA
| | - Yang Liu
- UIC/NIH Center for Botanical Dietary Supplements Research, PCRPS and Department of Pharmaceutical Sciences, University of Illinois College of Pharmacy, 833 S. Wood Street, Chicago, IL 60612, USA
| | - Guido F. Pauli
- UIC/NIH Center for Botanical Dietary Supplements Research, PCRPS and Department of Pharmaceutical Sciences, University of Illinois College of Pharmacy, 833 S. Wood Street, Chicago, IL 60612, USA
| | - Richard B. van Breemen
- UIC/NIH Center for Botanical Dietary Supplements Research, PCRPS and Department of Pharmaceutical Sciences, University of Illinois College of Pharmacy, 833 S. Wood Street, Chicago, IL 60612, USA
- Linus Pauling Institute, Oregon State University, 305 Linus Pauling Science Center, Corvallis, OR 97331, USA
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