Fig. 6

Distribution of 5-HT immune-positive cells in extravasated dots, beside EB, and in saline control. a, b. Representative immunofluorescence staining images of 5-HT under the epidermis (in green, A row) and in the dermis (in green, B row). There were a few 5-HT labelled cells under the epidermis (White arrow) and some 5-HT (+) cells in the dermis (White arrow). c, d. The sum fluorescent intensity and number of 5-HT (+) cells of per section were significantly higher in EB than in the control and BEB (* P < 0.05 vs Control; ** P < 0.01 vs Control; # P < 0.05, vs BEB). The 5-HT labelled cells in dermis were located near the vessels