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Effects of Pyrrolizidine Alkaloid Jacoline on Cellular Glutathione and Glutathione Reductase Activity in Human L-02 Hepatocytes
Author(s): 
Pages: 35-38
Year: Issue:  2
Journal: ACTA UNIVERSITATIS TRADITIONIS MEDICALIS SINENSIS PHARMACOLOGIAEQUE SHANGHAI

Keyword:  吡咯里西啶生物碱Jacoline谷胱甘肽肝L-02细胞;
Abstract: 目的:探讨吡咯里西啶生物碱Jacoline对人正常肝L-02细胞内谷胱甘肽含量及谷胱甘肽还原酶(Glutathione Reductase,GR)活性的影响.方法:①采用DTNB法检测100μmol/L Jacoline与L-02细胞孵育24、48、72 h后以及不同浓度Jacoline与L-02细胞孵育72 h后对L-02细胞内谷胱甘肽、还原型谷胱甘肽(GSH)、氧化型谷胱甘肽(GSSG)含量及其GSH/GSSG的影响.②采用NADPH法检测100μmol/L Jacoline作用24、48、72 h后对L-02细胞内GR活性的影响.结果:①DTNB比色法显示,100μmol/L Jacoline与L-02细胞孵育不同时间,谷胱甘肽和GSH含量随着时间的增加而减少,GSH/GSSG的比例也随时间的延长而减少;不同浓度的Jacoline与L-02细胞作用72 h后,谷胱甘肽和GSH含量以及GSH/GSSG随浓度的增加而减少;②100μmol/L Jacoline与L-02孵育不同时间,GR的活性随着时间的增加而升高.结论:Jacoline对L-02细胞内谷胱甘肽和GSH含量、GSH/CSSG以及GR还原酶的活性有明显影响.
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