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在色谱分析、有机合成和交叉偶联反应领域已被 0 篇同行评审文献引用。
细胞色素P450酶是一组主要存在于肝脏的酶系,在外源物质代谢中,尤其是药物和毒物的代谢,具有重要作用。ERND在P450酶系中相当于CYP2B亚型,与药物代谢的去甲基化密切相关。CYP2B具有催化底物形成非活性易于排泄的代谢产物而具有解毒作用,也可使某些药物经CYP2B代谢活化。 测定原理:ERND催化红霉素释放甲醛,通过Nash比色测定甲醛含量,即可计算出ERND活性。
Cytochrome P450 enzymes are a group of enzymes primarily located in the liver and play an important role in the metabolism of xenobiotics, particularly drugs and toxins. ERND (erythromycin N-demethylase) corresponds to the CYP2B isoform within the P450 enzyme system and is closely associated with demethylation in drug metabolism. CYP2B can catalyze the formation of inactive, readily excretable metabolites, thereby contributing to detoxification, but it can also activate certain drugs through metabolism. Determination Principle: ERND catalyzes the release of formaldehyde from erythromycin. The formaldehyde content is determined using the Nash colorimetric method, allowing the calculation of ERND activity.