Identifying mechanisms underlying the amelioration effect of Chrysanthemum morifolium Ramat. 'Boju' extract on hyperuricemia using biochemical characterization and UPLC-ESI-QTOF/MS-based metabolomics.

This study was aimed at evaluating the prospect of edible chrysanthemum extract as a potential substance for the prevention and treatment of hyperuricemia. Chrysanthemum morifolium Ramat. 'Boju' extract (CBE), which had the strongest xanthine oxidase inhibitory activity, showed a significant hypouricemic effect on potassium oxonate-induced hyperuricemic rats through inhibiting serum xanthine oxidase activity, regulating renal uric acid transport-related protein (ABCG2, URAT1 and GLUT9) expression and blood lipid levels, and protecting renal function. Serum metabolomics based on UPLC-ESI-QTOF/MS was used to illustrate mechanisms underlying the amelioration effect of CBE on hyperuricemia. A total of 35 potential biomarkers were identified. CBE prevented the pathological process of hyperuricemia by regulating 16/17 biomarkers associated with tryptophan, sphingolipid, glycerophospholipid and arachidonic acid metabolisms. CBE could alleviate hyperuricemia-related diseases including chronic kidney disease, hyperlipidemia and inflammation via reducing indoxyl sulfate, lysophosphatidylcholines and arachidonic acid levels, exhibiting its applicability and superiority in the treatment of hyperuricemia.

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