Figure 5. Dose-dependent effects of several vegetable polyphenols on the viability of retinal pigment epithelial cells. (A) epigallocatechin-3-gallate, (B) luteolin, (C) apigenin, (D) myricetin, (E) quercetin, and (F) cyanidin. The cells were stimulated with test substances for 24 h. Data are means±standard error of the mean (SEM) of three to seven independent experiments using cells from different donors. Significant difference vs. control: *p<0.05.