Methods: The experimental brain injury was induced in the SD rats ( n =40) and the expression of eNOS in the rat brain microvascular endothelium was examined using multilcolonal antibody to eNOS by immunohistochemistry and S-P histochemistal methods.

• 方法 :采用链菌素亲生物素 -过氧化氢酶法 (S- P法 )染色和抗 e NOS抗体的免疫组化方法 ,观察正常与脑外伤情况下服用冰片后大鼠脑微血管内皮细胞 (EC)中 e NOS表达量的变化。