黄连解毒汤有效成分对缺氧/复氧时脑微血管内皮细胞的保护作用

目的:研究栀子苷、黄芩苷和小檗碱对大鼠脑微血管内皮细胞的保护作用。方法:建立离体大鼠脑微血管内皮细胞缺氧/复氧损伤模型,用1.024,0.512,0.256,0.128,0.064,0.032,0.016,0.008μmol.mL^-1栀子苷,0.224,0.112,0.056,0.028,0.014,0.007,0.003μmol.mL^-1黄芩苷和0.192,0.096,0.048,0.024,0.012,0.006,0.003μmol.mL-1小檗碱分别作用于正常组和模型组细胞。细胞活性用MTT比色法检测。结果:0.128,0.064,0.032μmol.mL^-1栀子苷,0.028,0.014,0.007μmol.mL-1黄芩苷和0.024,0.012,0.006μmol.mL^-1小檗碱能够比较理想的保护缺氧4 h复氧12 h损伤的大鼠脑微血管内皮细胞。结论:适当浓度的栀子苷、黄芩苷和小檗碱等黄连解毒汤主要成分可以保护脑微血管内皮细胞。

Protective action of effective components of Huanglian Jiedu decoction on hypoxia and reoxygenation injury in cultured rat cerebral microvascular endothelial cells

OBJECTIVE: To investigate the protective effect of geniposide, baicalin and berberine for the rat cerebral microvascular endothelial cell. METHOD: The model of hypoxia and reoxygenation injury in rat cerebral microvascular endothelial cells in vitro was established. Both normal and model cells were treated with geniposide (1.024, 0.512, 0.256, 0.128, 0.064, 0.032, 0.016, 0.008 micromol x mL(-1)), baicalin (0.224, 0.112, 0.056, 0.028, 0.014, 0.007, 0.003 micromol x mL(-1)) and berberine (0.192, 0.096, 0.048, 0.024, 0.012, 0.006, 0.003 micromol x mL(-1)). Cell activity was measured by methyl thiazolyl tetrazolium (MTT) test. RESULT: After hypoxia/hypoglycemia cultures for 4 hour and reoxygenation for 12 hour, geniposide (0.128, 0.064, 0.032 micromol x mL(-1)), baicalin (0.028, 0.014, 0.007 micromol x mL(-1)) and berberine (0.024, 0.012, 0.006 micromol x microL(-1) could protect the injuried cerebral microvascular endothelial cells. CONCLUSION: Appropriate concentration of geniposide, baicalin and berberine, which are effective components of Huanglian Jiedu decoction, could protect the injuried cerebral microvascular endothelial cells.