Effects of BMSC transplantation on AQP4 and IL-1β proteins in the injured cerebral hemisphere. A. Western blot analysis of the expression of AQP4 and IL-1β proteins in all groups. Lanes 1-5 denote the N + PBS, MCAO + PBS, N + BMSCs, MCAO + BMSCs, and MCAO + IL-1ra groups, respectively. B. The bar chart of AQP4/GAPDH from each group. C. The bar chart of IL-1β/GAPDH from each group. Error bars show standard deviation. * indicates P < 0.05 vs. the MCAO + PBS group, # indicates P < 0.05 vs. the MCAO + BMSCs group.