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本期关注发表在《Biochemical Pharmacology》(影响因子5.3)上的重要研究"Metabolism of nifedipine by placental CYP19A1 and competitive inhibition by chlorpromazine"。这项研究揭示了治疗子痫前症的药物硝苯地平在人体胎盘中的代谢机制,发现CYP19A1是代谢硝苯地平的关键酶。更值得关注的是,常用镇静剂氯丙嗪会竞争性抑制CYP19A1活性,降低硝苯地平代谢。这一发现对于临床合理用药、避免潜在药物相互作用具有重要意义,为孕期用药安全提供了重要科学依据。