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Research progress on regulatory mechanisms of cholesterol 7α-hydroxylase in cholestasis
Author(s): 
Pages: 91-94
Year: Issue:  2
Journal: Qilu Pharmaceutical Affairs

Keyword:  胆汁淤积法尼酯衍生物X受体孕甾烷X受体胆固醇7α-羟化酶调节机制;
Abstract: 胆汁淤积是由多种原因所致的胆汁酸异常积聚,临床表现为黄疸或黄斑瘤等.胆固醇7α-羟化酶(cho-lesterol 7α-hydroxylase,CYP7A1)是体内催化胆固醇合成胆汁酸的限速酶,其活性与胆汁酸的合成量密切相关.机体中由法尼酯衍生物X受体(FXR)介导的法尼酯衍生物X受体/小异二聚体伴侣(FXR/SHP)信号通路和法尼酯衍生物X受体/成纤维细胞因子19/成纤维生长因子受体4(FXR/FGF19/FGFR4)信号通路以及由孕甾烷X受体(PXR)介导的信号通路是重要的胆固醇7α-羟化酶调节路径.上述通路通过调节胆固醇7α-羟化酶的活性,调控胆汁酸的合成,进而维持胆汁酸的内平衡.本文就近年来有关胆汁淤积中胆固醇7α-羟化酶的调节机制研究进行综述,为探索临床治疗胆汁淤积的靶点提供了参考.
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