Zheng Jie, Yan Qiuping, Zhang Kun, Zheng Yang, Zhao Suqing
Department of Pharmaceutical Engineering, School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, PR China.
Indian J Exp Biol. 2012 Dec;50(12):875-82.
A comparison of analysis in evaluating the hepatoprotective action of fractional ethanolic (F0), ethyl acetic (F1), n-butanol (F2) and aqueous (F3) extracts of E. ulmoides Oliv. (EUO) against thioacetamide (TAA) induced hepatic damage was studied in mice. The extract (453 mg/kg-F0, 104 mg/kg-F1, 95 mg/kg-F2 and 237 mg/kg-F3 body weight, po, once daily for 15 days) restored serum marker enzymes levels to normal in TAA treated mice. The biochemical biomarkers viz., total protein, albumin and total bilirubin were also restored forward normal level expression pattern of liver protein profile of mice by using sodium dodecyl sulfate polyacrylamide gel electrophoresis and two-dimensional gel electrophoresis showed 144 spots in TAA administered group which were significantly reduced in EUO extracts treated group. Among the four extracts ethyl acetate (F1) and n-butanol (F2) extracts showed more significant liver protection. TAA induced injury can be correlated with its high phenolic content in these extracts which may have hepatoprotective effects in regulating liver proteins by scavenging free radicals.
对杜仲(Eucommia ulmoides Oliv.,EUO)的乙醇分级提取物(F0)、乙酸乙酯提取物(F1)、正丁醇提取物(F2)和水提取物(F3)对硫代乙酰胺(TAA)诱导的小鼠肝损伤的保肝作用进行了分析比较研究。提取物(453 mg/kg - F0、104 mg/kg - F1、95 mg/kg - F2和237 mg/kg - F3体重,口服,每日一次,共15天)使TAA处理小鼠的血清标志物酶水平恢复正常。通过十二烷基硫酸钠聚丙烯酰胺凝胶电泳和二维凝胶电泳检测,生化生物标志物即总蛋白、白蛋白和总胆红素也恢复到正常水平,TAA给药组小鼠肝脏蛋白质谱的正常表达模式显示有144个斑点,在EUO提取物处理组中显著减少。在这四种提取物中,乙酸乙酯提取物(F1)和正丁醇提取物(F2)显示出更显著的肝脏保护作用。TAA诱导的损伤可能与其提取物中高酚含量有关,这些酚类可能通过清除自由基对调节肝脏蛋白质具有保肝作用。