镉、铅、汞对苯巴比妥诱导肝微粒体药物代谢酶的影响

被引:4
作者
肖功华
刘毓谷
机构
[1] 同济医科大学环境毒理研究室,同济医科大学环境毒理研究室武汉,武汉
关键词
镉; 铅; 汞; 微粒体药物代谢酶; 细胞色素P450; 苯巴比妥;
D O I
暂无
中图分类号
学科分类号
摘要
一次ip醋酸镉2.4mg/kg、醋酸铅100mg/kg或氯化汞 2.0 mg/kg均可抑制大鼠肝微粒体药物代谢酶。上述处理还可明显降低苯巴比妥对肝微粒’乙基吗啡N-脱甲基化酶、氨基比林N-脱甲基化酶、苯胺羟化酶和环己巴比妥羟化酶活力的诱导作用,降低苯巴比妥对细胞色素P450和细胞色素 b5以及微粒体蛋白合成的诱导作用。结果提示镉、铅、汞可能通过降低微粒体酶的新生合成,抑制肝微粒体药物代谢酶。
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页码:61 / 65
页数:5
相关论文
共 7 条
  • [1] The enzymatic metaboliam of hexobarbital (Evipal). Cooper JR,Brodie BB. Journal of Pharmacology and Experimental Therapeutics . 1955
  • [2] Protein measurement with the Folin phenol reagent. Lowry OH,Rosebrough NJ,Parr AI,et al. Journal of Biological Chemistry . 1951
  • [3] Ericsson JE, Ernster L.Phenobarbital induced synthesis of the microsomal drug-metabolizing enzyme system and its relationship to the proliferation of endoplasmic membranes. Orrenius S. The Journal of Cell Biology . 1965
  • [4] Cadmium inhibition of bepatic drug metabolism in the rat. Hadley WM,Miya TS,Bousquet WF. Toxicology and Applied Pharmacology . 1974
  • [5] Lead and methylmercury: Effects of acute exposure on cytochrome P-450 and the mixed function oxidase system in the liver. Alvares AP. The Journal of Experimental Medicine . 1972
  • [6] Enzyme induction by drug. Kupfer D. Bioscience . 1970
  • [7] Biochemical Toxicology of Environmental Agents. Bruin A ed. . 1976