Figure 4. Exogenous H2S inhibits the expression of cleaved caspase-3, cleaved caspase-9, and Cyt-c and promotes the expression of Bcl-2. The intensity of each band was quantified by densitometry, and the data were normalized to the GAPDH signal. All data were from three independent experiments. * p<0.05 vs. control group; # p<0.05 vs. H/R group; & p<0.05 vs. PC group; § p<0.05 vs. H/R + NaHS group; $ p<0.05 vs. PC + NaHS group.