A complete flow chart of this study. (A) The flow chart of the morphological part in this study. The rats in each group were injected with BrdU intraperitoneally for 14 consecutive days. They were sacrificed at 2 weeks and 4 weeks separately for luxol fast blue (LFB) staining and immunofluorescence double staining. n = 6. (B) The flow chart of the molecular part in this study. Rats in each group were sacrificed at 2 weeks and 4 weeks separately for western blot and q-RT-PCR. n = 12.