摘要:目的:通过体外酶学试验研究Apigenin对黄嘌呤氧化酶活性的影响及抑制机制。方法:运用紫外分光光度计测定尿酸生成导致的吸光度变化值,测定波长为292 nm,以黄嘌呤为底物根据测定结果绘制Lineweaver-Burk和Dixon图。结果:Apigenin对黄嘌呤氧化酶具有较强的抑制作用,其Ki值为0.151 3μg/ml,抑制类型为混合型;而别嘌呤醇作为参照,其Ki值为0.62μg/ml,抑制类型为竞争性抑制。结论:Apigenin可明显抑制黄嘌呤氧化酶活性。
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