Fig. 4. Variation in eNOS phosphorylation and iNOS expression measured in RPE cells by Western blot and densitometric analysis. In A and B, densitometric analysis and an example of Western blot of p-eNOS and iNOS are respectively shown. Abbreviations are as in previous Fig.s. The data were normalized versus control cells. Reported data are means SD of five independent experiments for each experimental protocol. Significance between groups: *P<0.05 vs C; #P<0.05 vs 200 μM H2O2.