NT-3 immunoreactive neurons in both groups were distributed densely in pyramidal layer of hippocampus and in granular cell layer of dentate gyrus by immunohistochemical SABC staining. In control group NT-3 neurons were high positive in cytoplasm and nuclei negative. 对照组NT-3免疫反应阳性神经元群集于海马锥体细胞层及齿状回颗粒细胞层中,呈强阳性反应。