黄芩茎叶总黄酮对原代培养大鼠肝细胞损伤的保护作用

目的研究黄芩茎叶总黄酮(SSTF)对原代培养大鼠肝细胞氧化损伤的保护作用及其机理。方法采用胰蛋白酶消化、分离大鼠肝细胞进行原代培养,用H2O2和CC l4体外诱导肝细胞损伤,同时加以不同浓度的SSTF对肝细胞保护,检测培养液中丙氨酸氨基转移酶(ALT)活性、肝细胞内丙二醛(MDA)含量和谷胱甘肽过氧化物酶(GSH-px)活性,MTT法测定肝细胞增殖活性。结果与模型组比较,SSTF明显抑制H2O2和CC l4引起的肝细胞培养液中ALT活性的升高,肝细胞存活率明显升高,还可明显恢复H2O2引起的肝细胞MDA含量的升高和GSH-px活性的降低明显。结论SSTF对培养大鼠肝细胞损伤有明显的保护作用,其机制可能与其抗脂质氧化作用有关。

Study on the Protective Effect and Possible Mechanism of Scutellaria baicalensis Stem -leaf Total Flavonoid on Primary Cultured Rat Hepatocytes Injured by H2O2 or CCl4

ObjectiveTo study the protective effect and possible mechanism of Scutellaria baicalensis stem-leaf total flavonoid(SSTF) on primary rat hepatocyes injured by H2O2 or CCl4.MethodsPrimary hepatocytes were isolated,cultured by trypsin digestion and induced by H2O2 or CCl4.Various concentrations of SSTF were added to the primary cultured hepatocytes.The contents of malondialdehyde(MDA) and activity of glutathion peroxidase(GSH-px) in hepatocytes and the activity of ALT in cultural supernatant were determined by general methods,the viabilities of hepatocytes were measured by MTT.ResultsCompared with model group,SSTF could restore remarkably ALT level in supermatant of cultural hepatocytes,decrease MDA content and elevate GSH-px activity of hepatocytes,hepatocyte viabilities increased significantly by SSTF.ConclusionSSTF has a protective action on primary rat hepatocyes injured by H2O2 or CCl4.These might be associated with its anti-lipoperoxidation function.