Figure 3. Astaxanthin inhibited H₂O₂-induced apoptosis in ARPE-19 cells. A: The ARPE-19 cells were incubated with 10 µM and 20 µM astaxanthin (AST) for 24 h and then exposed to 200 µM hydrogen peroxide (H₂O₂) for 24 h. Flow cytometry recording shows the apoptosis rate of the ARPE-19 cells. B: Summarized data show the rate of apoptotic cells detected with flow cytometry. Data are shown as mean ± standard deviation (SD) (n=6); *p<0.05 versus control; # p<0.05 versus H₂O₂-induced cells without treatment with AST.