FIGURE 1.

SYN immunolabeling in degus retina. (A,A’) Juvenile degus, (B,B’) Young degus, (C,C’) adult degus, (D,D’) aged adult degus. (E) Quantification of percentage area occupied by SYN labeling in the entire retinal image. SYN, synaptophysin; OLM, outer limiting membrane; ONL, outer nuclear layer; OPL, outer plexiform layer; ILM, inner limiting membrane; INL, inner nuclear layer; IPL, inner plexiform layer; GCL, ganglion cell layer; NFL, nerve fiber layer. Scale bar = 20 μm. Statistical analysis was completed by one way ANOVA. Data are expressed as mean ± SEM (n = 6). Significant values are indicated with asterisks: ^∗∗∗p < 0.001.