上海大学学报(自然科学版)

• 计算机工程与科学 • 上一篇    

山楂活性成分对氧化低密度脂蛋白损伤人微血管内皮细胞的防治作用

何秋艳,翁新楚   

  1. 上海大学 生命科学学院,上海 200444
  • 收稿日期:2006-10-09 修回日期:1900-01-01 出版日期:2007-12-20 发布日期:2007-12-20
  • 通讯作者: 翁新楚

Protective and Repairing Effect of Crataegus pinnatifida Compounds 
on oxLDL Induced Damages of HMEC

HE Qiu-yan,WENG Xin-chu   

  1. School of Life Sciences, Shanghai University, Shanghai 200444, China
  • Received:2006-10-09 Revised:1900-01-01 Online:2007-12-20 Published:2007-12-20
  • Contact: WENG Xin-chu

摘要:

对山楂中有效成分进行分离提取,并研究其保护人微血管内皮细胞(HMEC)抑制氧化低密度脂蛋白(oxLDL)损伤和对损伤的修复作用.对山楂石油醚和氯仿提取物,经过反复硅胶柱层析,分离得到3种化合物,经理化性质和波谱分析,鉴定为:(Ⅰ)胡萝卜(Daucosterol)、(Ⅱ)熊果酸(Ursolic acid)、(Ⅲ)β谷甾醇(βsitosterol).实验以山楂依次用石油醚、氯仿、乙酸乙酯、95%乙醇提取的各种提取物和化合物Ⅰ~Ⅲ为研究对象,以洛伐他汀(Lovastatin)作为阳性对照,MTT法考察样品对保护HMEC抑制oxLDL损伤和对损伤的修复作用.结果表明:山楂各种溶剂提取物和洛伐他汀在3.12~25 μg/mL时,保护细胞抑制氧化损伤;乙酸乙酯、95%乙醇提取物在浓度6.25~25 μg/mL时对氧化损伤细胞有修复作用,效果好于洛伐他汀;胡萝卜苷、β谷甾醇在0.39~12.5μg/mL下有保护作用;熊果酸在0.39~1.56 μg/mL下有保护作用;胡萝卜苷在浓度6.25~12.5 μg/mL下表现出很强的修复作用,熊果酸在浓度0.39~3.12 μg/mL时表现出的修复作用和洛伐他汀相当.

关键词:

山楂, β谷甾醇, 胡萝卜苷, 人微血管内皮细胞, 熊果酸, 氧化损伤

Abstract:

This paper studies extracts and pure compounds from Crataegus pinnatifida and their protection and repair effects on oxidized low-density lipoprotein(oxLDL) induced damages of Human Mammary Epithelial Cells (HMEC). Three compounds were isolated from petroleum ether extract and chloroform extract by silica gel column chromatography. Daucosterol, ursolic acid, βsitosterol were identified by melting points, infrared and nuclear magnetic resonance spectra and mass spectra. Results show that different solvent extract and Lovastatin between 3.12 and 25 μg/mL have protective effects to oxidation damage cells. Daucosterol has stronger repairing effect than Lovastatin between 6.25 and 12.5 μg/mL. Ursolic acid has similar repiring effect to Lovastatin at concentration range from 0.39 to 3.12 μg/mL.

Key words: daucosterol, HMEC, oxidation damage

, ursolic acid, β-sitosterol,

Crataegus pinnatifida