A small portion of BrdU and NeuN double labeled cells could be detected in the cortex at the early stage of development, and in the striatum and CA of the hippocampus in all groups.

• 皮层在发育早期以及纹状体和海马CA区在发育各期检测到极少数为新生神 经元细胞，多数分化为胶质细胞；