Figure 2. Expression of Opn4 is not affected by N-methyl-D-aspartic acid injection. Shown are the relative expression levels of Brn3a and Opn4 in retinas of wild type mice at 6 h, 24 h, 48 h, and 6 days after injection of N-methyl-D-aspartic acid (NMDA, black bars)
or phosphate buffered saline (PBS, grey bars). Expression after NMDA injection was expressed relative to expression after
PBS injection, which was set to 1 for each time point. Shown are means±SD of n=4-6. *; p<0.05; ***; p<0.001. A two-way ANOVA
with Bonferroni post hoc test was used to test statistical significance.