期刊
BIOLOGY-BASEL
卷 12, 期 2, 页码 -出版社
MDPI
DOI: 10.3390/biology12020329
关键词
hyperuricemia; NLRP3 inflammasome; strictinin; uric acid; xanthine
类别
Strictinin, a natural polyphenol from Pu'er tea, has been found to alleviate the risk of gout caused by hyperuricemia. It reduces xanthine oxidase activity, uric acid production, and inflammation, and promotes healthy gut microbiota. Strictinin shows great potential as a functional ingredient for the prevention of hyperuricemia.
Simple Summary Hyperuricemia is a major risk factor for gout. Inhibition of liver xanthine oxidase has been shown to reduce the uric acid level in blood. However, side effects were reported for the xanthine oxidase inhibitors clinically used in the treatment of hyperuricemia. This study aimed to evaluate strictinin, a natural polyphenol from Pu'er tea, for its therapeutic effects on hyperuricemia. Alleviation of hyperuricemia by strictinin supplementation was observed in AML12 mouse hepatocytes treated with xanthine as well as in an animal model using mice treated with potassium oxonate. Hyperuricemia, an abnormally high level of blood uric acid, is a major risk factor for gout. Although xanthine oxidase inhibitors were clinically used to lower blood uric acid level, the concerned side effects restricted their utilization. In this study, strictinin, an abundant polyphenol in Pu'er tea, was evaluated for its preventive effects on hyperuricemia. The results showed that the xanthine oxidase activity, uric acid production, and inflammation in AML12 mouse hepatocytes treated with xanthine were significantly reduced by the supplementation of strictinin. Detailed analyses revealed that strictinin inhibited xanthine-induced NLRP3 inflammasome activation. Consistently, the elevated blood uric acid level and the enhanced xanthine oxidase activity in mice treated with potassium oxonate were effectively diminished by strictinin supplementation. Moreover, for the first time, strictinin was found to promote healthy gut microbiota. Overall, strictinin possesses a great potential to be utilized as a functional ingredient for the prevention of hyperuricemia.
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