Fig. 1

Scald burn caused extensive damage to the lung during the first 24 h following injury. a Representative hematoxylin and eosin staining showing morphological changes in lung tissue (magnification, × 200). 0.5 h, 1 h, 6 h, 12 h, and 24 h represented the time points for sampling after burn injury. b, c Grouped results of histology scores and wet to dry weight ratios, respectively. d Grouped results of caspase-3 activity. The values were normalized to the sham group, which was assigned a value of 1. Each bar represents the mean ± SEM; n = 6 rats. ^#P < 0.05, ^##P < 0.01 vs sham