Fig. 1From: Stimulatory effect of icariin on the proliferation of neural stem cells from rat hippocampusMorphological characteristics of neural stem cells cultured at different time points. Isolated neural cells were cultured in neural stem cells medium, and morphological changes of the cells were observed under a microscopy. a Primary culture of neural stem cells at day 3. b Primary culture of neural stem cells at day 7. c Subculture of the day 7Back to article page