黄连解毒汤有效部位对培养大鼠皮层神经元缺糖缺氧损伤的保护作用

Protective effects of huang lian jie du tang active fraction on ischemia injury in cerebral cortical neuronal cultures

目的 观察黄连解毒汤有效部位 (HLJDTAF)对缺糖 /缺氧培养所致大鼠皮层神经细胞损伤的保护作用。方法 体外培养大鼠皮层神经细胞 ,以缺氧加缺糖培养建立神经细胞“缺血”性损伤模型 ,观察HLJDTAF对培养神经细胞“缺血”性损伤的保护作用。结果 HLJDTAF 6 10mg·kg-1能明显增高模型细胞的活性 ;30 5mg·kg-1能显著降低模型细胞乳酸脱氢酶 (LDH)漏出率 ;6 10、30 5、15 3mg·kg-1明显降低上清液中NO含量 ,降低裂解液中MDA含量 ,提高SOD活性。结论 HLJDTAF对正常细胞无明显影响 ,对培养神经细胞“缺血”性损伤具有显著的保护作用 ,其机制可能与其降低NO含量。

Aim To investigate the protective effects of huang lian jie du tang active fraction(HLJDTAF) on ischemia injury in cerebral cortical neuronal cultures. Methods The cortical neurons of rat fetal were cultured in vitro. The protective effects of HLJDTAF on ischemia injury were observed by treating cells with sodium dithionite in glucose free medium. Results HLJDTAF 610 mg·kg -1 increased the activity of neuron, 305 mg·kg -1 reduced the leakage rate of LDH; HLJDTAF 610, 305, 153 mg·kg -1 reduced the content of NO,MDA and increased the activity of SOD. Conclusion HLJDTAF protected the cerebral cortical neurons from ischemia injury by reducing the contents of NO and suppressing the generation of lipidperoxide.