Reduction of the Plasma Uric Acid Level in Potassium Oxoate-Induced Hyperuricemic Rats by Heat-Concentrated <i>Prunus mume</i> Fruit Extract Containing Three Chlorogenic Acid Isomers

Gout is a common rheumatic disease, resulting from hyperuricemia. <i>Prunus mume</i> fruit extract, after being heat-concentrated named mei extract, was empirically found to reduce the risk of gout. While neochlorogenic acid was found as the predominant phenolic compound in the fresh jui...

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Main Authors: Yi-Ching Wu, Ping-Chung Kuo, Wen-Ying Chen, Jason T. C. Tzen
Format: Article
Language:English
Published: MDPI AG 2023-02-01
Series:Compounds
Subjects:
Online Access:https://www.mdpi.com/2673-6918/3/1/14
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author Yi-Ching Wu
Ping-Chung Kuo
Wen-Ying Chen
Jason T. C. Tzen
author_facet Yi-Ching Wu
Ping-Chung Kuo
Wen-Ying Chen
Jason T. C. Tzen
author_sort Yi-Ching Wu
collection DOAJ
description Gout is a common rheumatic disease, resulting from hyperuricemia. <i>Prunus mume</i> fruit extract, after being heat-concentrated named mei extract, was empirically found to reduce the risk of gout. While neochlorogenic acid was found as the predominant phenolic compound in the fresh juice of <i>Prunus mume</i>, neochlorogenic acid, chlorogenic acid, and cryptogenic acid were detected as the major phenolic compounds in the mei extract. In vitro testing showed that all the three chlorogenic acid isomers exhibited comparable inhibitory activities on xanthine oxidase. The hypouricemic effects of the mei extract were evaluated in potassium oxonate-induced hyperuricemic rats. Oral administrations of the mei extract significantly reduced the plasma uric acid level in hyperuricemic rats, but did not elevate the urinary uric acid level. The results provide in vivo evidence for the anti-hyperuricemic effects of mei extract for the first time, rationalize its therapeutic usage for the treatment of hyperuricemia and gout, and propose chlorogenic acid isomers as the active ingredients. Mei extract seems to be a potential natural functional food product.
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spelling doaj.art-1d15e797edf04509ac300ab4d1a529752023-11-17T10:25:50ZengMDPI AGCompounds2673-69182023-02-013116917910.3390/compounds3010014Reduction of the Plasma Uric Acid Level in Potassium Oxoate-Induced Hyperuricemic Rats by Heat-Concentrated <i>Prunus mume</i> Fruit Extract Containing Three Chlorogenic Acid IsomersYi-Ching Wu0Ping-Chung Kuo1Wen-Ying Chen2Jason T. C. Tzen3Graduate Institute of Biotechnology, National Chung-Hsing University, Taichung 402, TaiwanSchool of Pharmacy, College of Medicine, National Cheng Kung University, Tainan 701, TaiwanDepartment of Veterinary Medicine, National Chung-Hsing University, Taichung 402, TaiwanGraduate Institute of Biotechnology, National Chung-Hsing University, Taichung 402, TaiwanGout is a common rheumatic disease, resulting from hyperuricemia. <i>Prunus mume</i> fruit extract, after being heat-concentrated named mei extract, was empirically found to reduce the risk of gout. While neochlorogenic acid was found as the predominant phenolic compound in the fresh juice of <i>Prunus mume</i>, neochlorogenic acid, chlorogenic acid, and cryptogenic acid were detected as the major phenolic compounds in the mei extract. In vitro testing showed that all the three chlorogenic acid isomers exhibited comparable inhibitory activities on xanthine oxidase. The hypouricemic effects of the mei extract were evaluated in potassium oxonate-induced hyperuricemic rats. Oral administrations of the mei extract significantly reduced the plasma uric acid level in hyperuricemic rats, but did not elevate the urinary uric acid level. The results provide in vivo evidence for the anti-hyperuricemic effects of mei extract for the first time, rationalize its therapeutic usage for the treatment of hyperuricemia and gout, and propose chlorogenic acid isomers as the active ingredients. Mei extract seems to be a potential natural functional food product.https://www.mdpi.com/2673-6918/3/1/14chlorogenic acid isomerhyperuricemiamei extract<i>Prunus mume</i>xanthine oxidase
spellingShingle Yi-Ching Wu
Ping-Chung Kuo
Wen-Ying Chen
Jason T. C. Tzen
Reduction of the Plasma Uric Acid Level in Potassium Oxoate-Induced Hyperuricemic Rats by Heat-Concentrated <i>Prunus mume</i> Fruit Extract Containing Three Chlorogenic Acid Isomers
Compounds
chlorogenic acid isomer
hyperuricemia
mei extract
<i>Prunus mume</i>
xanthine oxidase
title Reduction of the Plasma Uric Acid Level in Potassium Oxoate-Induced Hyperuricemic Rats by Heat-Concentrated <i>Prunus mume</i> Fruit Extract Containing Three Chlorogenic Acid Isomers
title_full Reduction of the Plasma Uric Acid Level in Potassium Oxoate-Induced Hyperuricemic Rats by Heat-Concentrated <i>Prunus mume</i> Fruit Extract Containing Three Chlorogenic Acid Isomers
title_fullStr Reduction of the Plasma Uric Acid Level in Potassium Oxoate-Induced Hyperuricemic Rats by Heat-Concentrated <i>Prunus mume</i> Fruit Extract Containing Three Chlorogenic Acid Isomers
title_full_unstemmed Reduction of the Plasma Uric Acid Level in Potassium Oxoate-Induced Hyperuricemic Rats by Heat-Concentrated <i>Prunus mume</i> Fruit Extract Containing Three Chlorogenic Acid Isomers
title_short Reduction of the Plasma Uric Acid Level in Potassium Oxoate-Induced Hyperuricemic Rats by Heat-Concentrated <i>Prunus mume</i> Fruit Extract Containing Three Chlorogenic Acid Isomers
title_sort reduction of the plasma uric acid level in potassium oxoate induced hyperuricemic rats by heat concentrated i prunus mume i fruit extract containing three chlorogenic acid isomers
topic chlorogenic acid isomer
hyperuricemia
mei extract
<i>Prunus mume</i>
xanthine oxidase
url https://www.mdpi.com/2673-6918/3/1/14
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