Capillary density in different groups. (A) Blood vessels were highlighted by immunostaining for vWF. The endothelial cells were dyed brown. 1, Control group; 2, rAAV-GFP group; 3, rAAV-CD151 group; 4, rAAV-antiCD151 group (magnification×200). (B) The density of total capillaries was dramatically increased in the rAAV-CD151 group, whereas rAAV-antiCD151 group had decreased density. Data represent the mean of vessel number±SEM per field (n=4–6). bP<0.05 vs Control and rAAV-GFP groups. eP<0. 05 vs rAAV-CD151 group.