中文摘要：

目的：本研究用逍遥散和糖皮质激素受体（GR）阻滞剂干预慢性应激损伤大鼠,观察其海马区NR受体亚型表达情况。方法：以逍遥散（5.265g/kg）和GR受体阻滞剂RU-38486（12.5g/kg）为干预药物,应用慢性不可预知应激对大鼠进行为期3周的造模,在造模的同时给予实验药物,3周后停止刺激,于第22天处死大鼠取材。采用荧光免疫组织化学法,测定各组大鼠海马区NR表达。结果：GR受体阻滞剂RU-38486与中药复方逍遥散可显著下调慢性应激损伤大鼠海马区NR阳性表达。结论：逍遥散可以通过促进慢性应激损伤大鼠海马区NR表达下调,从而达到部分恢复慢性应激大鼠下丘脑—垂体—肾上腺（HPA）轴负反馈功能的作用,起到缓解诸应激症状的疗效。

英文摘要：

Objective： We treat the chronic stress model by Xiaoyaosan and RU-38486,observing the expression of NR in brain hippocampus.Methods： We used chronic unpredicted stress method to establish the rat model for 3 weeks and gave the drugs including the Xiaoyaosan（5.265g/kg）and RU-38486（12.5g/kg） to intervene at the same time.On the 22nd day we observed the expression of NR by Fluorescent immunohistochemistry method.Results： Xiaoyaosan and RU-38486 could obviously down-regulated the the expression of intracellular NR subspecies in brain hippocampus of chronic stress rats.Conclusion： Xiaoyaosan may have the effect of relieving the stress symptoms by down-regulating the expression of intracellular NR subspecies in brain hippocampus and recovering the function of HPA of chronic stress rats.