METHODS: Neurons in hippocampal region of newborn SD rats were cultured by common culture method, cytosine arabinoside (Ara c) supplementing method, Ara c and nerve growth factor (NGF) supplementing method.

• 方法 :取新生SD大鼠的海马区 ,应用一般培养法、加阿糖胞苷法、加阿糖胞苷和神经生长因子法培养神经元 ,观察神经元的形态。