Fig. 1

Physiological effect of PFSE and piceatannol on cell viability in human RPE cells ARPE-19. (A) Experimental timeline. Cells were treated with the indicated PFSE or Pic concentrations for 24 h. After incubation for 1 h, cell viability was assessed by WST-8 assay. (B) Cell viabilities (%) are the means of three independent experiments, with error bars showing ± standard error of the mean (SEM). Cont., control (solvent alone); PFSE10, 0.023-mg/mL PFSE (Pic equivalent of 10 μM); PFSE1, 0.0023-mg/mL PFSE (Pic equivalent of 1 μM); Pic10, 10-μM Pic; Pic1, 1-μM Pic.