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Screening of Antineoplastic Components in Radix et Rhizoma Rhei Using Chromatographic Fingerprints
Author(s): 
Pages: 470-476
Year: Issue:  5
Journal: CHINESE JOURNAL OF CHROMATOGRAPHY

Keyword:  高效液相色谱-质谱大黄色谱指纹谱体外代谢中药SD大鼠肝匀浆;
Abstract: 采用液相色谱-质谱联用方法分析了中药大黄经过SD大鼠肝匀浆体外代谢前后的指纹谱中色谱峰面积、保留值的差异.指出5种游离型蒽醌化合物在SD大鼠肝匀浆体外代谢体系中只有大黄酚发生代谢反应转化为芦荟大黄素.考察了体外代谢条件下,肝匀浆浓度与代谢时间对大黄酚转化及其代谢产物的影响.SD大鼠体外抗肿瘤试验表明,大黄代谢物对于人宫颈癌(HeLa)细胞的抑制活性略高于其提取物.通过比较芦荟大黄素、大黄酸、大黄素、大黄酚、大黄素甲醚的活性,并结合大黄酚的体外代谢反应的考察,解释了大黄代谢物对肿瘤细胞活性的抑制率的提高是由大黄酚的代谢产物芦荟大黄素浓度的增加引起的.
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