Protective effects of FA against H2O2‐induced cytotoxicity in ARPE‐19 cells. A, The effect of FA on the cell viability of ARPE‐19 cells detected by MTT assay; ARPE‐19 cells were pre‐treated with different concentration of FA (0, 0.25, 0.5, 1, 2, 5 and 10 mM) for 24 h. B, The effect of FA pre‐treatment on the cell viability of H2O2‐induced human ARPE‐19 cells detected by MTT assay; ARPE‐19 cells were pre‐treated with different concentration of FA (0, 0.25, 0.5, 1, 2 and 5mM) for 24 h and then treated with H2O2 (300 μM) for 4 h. C, The effect of FA pre‐treatment on the cell death of H2O2‐induced human ARPE‐19 cells detected by LDH assay. ARPE‐19 cells were pre‐treated with different concentration of FA (0, 0.25, 0.5, 1, 2 and 5mM) for 24 h and then treated with H2O2 (300 μM) for 4 h. Each column presented means ± SD (n = 3). **
P < .01 vs normal control group. #
P < .05, ##
P < .01 vs H2O2‐treated group