芍药甙对PC12细胞缺血性损伤的保护及机制研究Protective Effect of Paeoniflorin Against Ischemic Injury in Cultured PC12 Cells
魏守建,杨军,何丽娜,何素冰
摘要(Abstract):
目的 探讨芍药甙 (PAE)对 PC12细胞缺血样损伤模型的保护作用及其机制。方法 采用组织培养法,以肾上腺嗜铬瘤克隆化细胞株 PC12细胞为材料,制备缺糖损伤、缺氧损伤、自由基损伤、 Caf损伤、 NO损伤及 GIu毒性损伤模型。结果 形态学检查发现 PAE对 6种脑缺血样损伤模型中 PC12细胞具有明显保护作用, MTT染色提示 PAE可显著提高损伤模型中 PC12细胞的存活数,降低胞浆释放的 LDH水平。结论 除缺氧损伤外, PAE对其他 PC12细胞缺血样损伤有显著的保护作用,其作用机制可能与抑制损伤后期出现的胞内钙超载相关。
关键词(KeyWords): 芍药甙;PC12细胞;脑缺血样损伤;钙超载
基金项目(Foundation):
作者(Author): 魏守建,杨军,何丽娜,何素冰
参考文献(References):
- 1 Tsuda T,Sugaya A,Ohguchi H,et al.Protective effects of peony root extract and its components on neuron damage in the hipocampus induced by the cobalt focus epilepsy model. Exp Neurol,1997,146(2):58
- 2楚正绪,沈洪兴,竺青,等.赤芍提取物改善学习记忆的作用.第二军医大学学报, 1991, 12(5): 465
- 3 Salvaterra CG,Goldman WF.Direct effect of hypoxia on apparent in traellular calcium levels in cultured pulmonary vascular smooth muscles cells.Am Rev Respir Dis,1991,143: A373
- 4 Buisson A,Plotkine M,Boulu RG.The neuroprotective effect of a nitric oxide inhibitor in a rat model of focal cerebral ischemia.Br J Pharmacol,1992,106:766
- 5杨军,王静,刘超,等.赤芍总甙对小鼠学习记忆能力的改善作用.中国药理学通报, 2000, 16(1): 47
- 6杨军,王静,刘超,等.赤芍总甙对小鼠脑缺血再灌注损伤的保护作用.中药材, 2000, 23(2): 98
- 7 Peruche B,Krieglsten J.Neuroblastoma cells for testing neuroprotective effects.J Pharmacol.Meth,1991,23:63
- 8 Goto H,Shimada Y,Akechi Y,et al.Endothelium dependent vasodilator effect of extract prepared from the roots of paeonia lactiflora on isolated rat aorta.Planta Med,1996,62(5):436
- 9菅谷爱子.芍药的药理及药效.国外医学中医中药分册, 1992, 14(5): 271