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[LC/MS guided approach to discovering nephroprotective substances from Huangkui capsule].
Zhejiang da Xue Xue Bao. Yi Xue Ban = Journal of Zhejiang University. Medical Sciences 2017 January 26
Objective: To discover the nephroprotective substances from Huangkui capsule. Methods: The components of Huangkui capsule were isolated by preparative liquid chromatography, and the active components were screened by LC/MS and identified. The adriamycine-injured HK-2 cells were treated with various active components with different concentrations, and the malonaldehyde (MDA) content, adenosine triphosphate (ATP) level and mitochondrial oxygen consumption rate were measured to verify the protective activity of the compounds. Results: Four active components in Huangkui capsule were identified to exert nephroprotective effects. Fifteen flavanoids from these four components were tentatively identified by LC/MS, and hyperin, myricetin, quercetin, rutin and isoquercetin were confirmed. Hyperin, myricetin quercetin and rutin showed dose-dependent protective effects on injured HK-2 cells. Espacially, hyperin significantly reduced MDA content, quercetin and rutin significantly increased ATP level, and myricetin significantly increased mitochondrial oxygen consumption rate. Conclusion: Hyperin, myricetin, querctein and rutin might be the potential nephroprotective compounds in Huangkui capsule, their effects may be related to the inhibition of lipid peroxidation and the alleviation of mitochondrial damage.
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