The micromass culture of rat embryo midbrain nerve cells were applied to study the effect ofnerve growth factor 2. 5S (NGF) on the growth and differentiation of relevant cells in vitro.

• 利用大鼠胚胎中脑细胞作原代微团培养，研究了不同浓度的神经生长因子（2．5S）对中脑细胞分化的影响。