Fig. 4

Effect of SJM on the burn injury appearances of the rats. The 165 °C copper block was used to create full-thickness burn injuries on the rats, and the wounds were photographed every two days. The wounds were continually observed for 28 days. (The images illustrate the wound appearances after 0, 4, 7, 14, 21, and 28 days. b The curves represent the wound area of each group (displayed as percentage value) versus number of days. The results revealed that the wound healing areas of the burn + vehicle and burn + untreated groups differed nonsignificantly, and the wound healing rates of burn + SJM groups were significantly higher than that of the burn + vehicle group. c The area under the wound area–time curve is shown for the burn + SJM-L and burn + SJM-H-treated groups, which exhibited significant improvement compared to the burn + vehicle group. Scale = 1 cm * denotes p < 0.05 compared with the burn + untreated group and # denotes p < 0.05 compared with the burn + vehicle group