Fig. 3From: Effects of concentration of amyloid β (Aβ) on viability of cultured retinal pigment epithelial cellsApoptosis of ARPE-19 cells exposed to Aβ 1–40. The addition of a caspase-9 inhibitor suppresses the decrease in the number of living ARPE-19 cells exposed to 25 μM Aβ. This indicates that the apoptosis of ARPE-19 cell by 25 μM Aβ exposure was through the caspase-9 pathway. Data are the means ± SEMs for each group (n = 4)Back to article page