Figure 2. Hydrogen sulfide (H2S) protected H9c2 cells against H2O2-induced oxidative stress (A). Intracellular superoxide anion production was detected with dihydroethidium and observed by fluorescent microscopy (B). The fluorescent signal was measured and quantified. Data are reported as means±SE (n=6). *P<0.01 vs control; #P<0.01 vs NaHS; &P<0.01 vs H2O2 (ANOVA followed by Student-Newman-Keuls post hoc test). ROS: reactive oxygen species.
