Figure 9. Immunofluorescence results showing the level of CD31 and eNOS expression in the brain tissues from each group. (A) Dual immunofluorescence staining showing CD31(+) and eNOS(+) cells in the ischemic brains in each group. Bar = 20 μm. (B) Representative dual immunofluorescence staining showing both CD31(+) and eNOS(+) cells. Bar = 5 μm. The white arrow indicates a CD31(+) cell, and the yellow arrow indicates an eNOS(+) cell. (C) Counts of CD31(+), eNOS(+) and CD31/eNOS(+) cells in each group. The error bars represent the ±SDs. eNOS: endothelial nitric oxide synthase.