FIGURE 8.

NPAS4 overexpression increased p-SYN I expression levels in primary cultured hippocampal neurons. A, representative photographs showing immunocytochemical analysis of p-SYN I expression in Npas4 vector-transfected cells (Myc-positive). Scale bar, 20 μm. B, quantitative analysis of p-SYN I expression levels. Values (the mean ± S.E.) indicate normalized p-SYN I levels. (n = 48 for Npas4 vector transfection (Npas4), n = 34 for mock vector transfection (Mock), and n = 77 for nontransfection (Control)). *, p < 0.05 versus control and mock (one-way ANOVA followed by Dunnett's test).