Representative images of Ki67 (A–D), DCX (A′–D′), and DCX+ area (A‴–D‴) staining at the SVZ of the control group (A–A‴); diet group (B–B‴); PA group (C–C‴); and PA/diet group (D–D‴). (E) Quantification of the percentage (%) of DCX+ cells with Ki67 labeling from the total number of DCX+ cells, * p = 0.0468 (PA vs. sham), ** p = 0.0013 (PA vs. control). (F) Quantification of DCX+ area immunoreactivity, ** p = 0.0055 (control vs. sham), **** p < 0.0001 (PA vs. sham), * p = 0.0239 (PA vs. diet), ** p = 0.0083 (PA vs. PA/diet). Scale bars: 100 μm. Bars show mean ± SEM. A total of 3 sham rats and 5 rats per remaining group were used in all experiments, with 250 cells quantified per animal.