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Inhibition of methoxyresorufin demethylase activity by flavonoids in human liver microsomes.

机译:黄酮类化合物在人肝微粒体中对甲氧苯丁香脲脱甲基酶的抑制作用。

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摘要

Flavonoids are a class of dietary phytochemicals with anticarcinogenic properties. A series of ten structurally related flavonoids were evaluated for their effect on methoxyresorufin O-demethylase (MROD) activity in human liver microsomes. All compounds inhibited this cytochrome P450 1A2 (CYP1A2) mediated activity. 3,5,7-Trihydoxyflavone (galangin) was the most potent inhibitor, followed by 3-hydroxyflavone and flavone. The relative inhibitory potency of flavonoids is related to their structures. The results suggest that flavonoids may modulate pharmacological and toxicological effects mediated by CYP1A2.
机译:类黄酮是一类具有抗癌性的饮食植物化学物质。评估了一系列十种与结构相关的类黄酮对人肝微粒体中甲氧基异佛瑞芬O-脱甲基酶(MROD)活性的影响。所有化合物均抑制该细胞色素P450 1A2(CYP1A2)介导的活性。 3,5,7-三羟黄酮(高良姜精)是最有效的抑制剂,其次是3-羟基黄酮和黄酮。黄酮类化合物的相对抑制能力与其结构有关。结果表明类黄酮可能调节CYP1A2介导的药理作用和毒理作用。

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