Fig. 3

Apoptosis analysis about rat lungs of limb I/R-induced ALI in different experiment group. a DAPI staining and TUNEL assay. Lung tissue nuclei appear light blue, TUNEL-positive nuclei appear green (n = 8, five fields for each specimen). b The index of apoptotic about rat lungs in different experiment group. Results are given as mean ± SD (n = 8 animals/group). Significant differences are indicated as: ^a p < 0.01 vs. control group, ^b p < 0.01 vs. I/R group, ^c p < 0.05 vs. I/R + SO₂ group