Fig. 4

Hydrogen gas decreased the expression of VEGF-α at 1, 7 and 14 d post-occlusion. a: Typical immunofluorescence staining picture and expression of VEGF-α at 1 d post-occlusion. b: Typical immunofluorescence staining picture and expression of VEGF-α at 7 d post-occlusion. c: Typical immunofluorescence staining picture and expression of VEGF-α at 14 d post-occlusion. d: Typical immunofluorescence staining picture and expression of VEGF-α at 30 d post-occlusion. All analyses were performed in duplicate. The data are expressed as the mean ± standard deviation (SD), n = 3 rats per group. ^*, p < 0.05, H and M group vs C group; ^#, p < 0.05, H group vs M group. C: control group, M: model group, H: hydrogen gas group