EGF and bFGF increases the number of G1-S cycling SVZ cells that express Sox2.

<p>(<b>A</b>) Grayscale image of EdU staining in the SVZ in coronal sections from animals that received growth factors (GF) or saline injections. (<b>B</b>) Bar graphs of the number of EdU⁺ cells per mm³ in the SVZ under different conditions (saline injection or GF injected in the ipsilateral (ipsi) ventricle). (<b>C</b>) % of control for the number of EdU⁺ cells in the ipsilateral versus contralateral (contra) SVZ. (<b>D</b>) Confocal photographs of EdU (green) and Sox2 (red) immunostaining. Arrows point to double-positive cells in the SVZ. (<b>E</b>) Bar graphs of the % of Sox2⁺ cells that were EdU⁺ under different conditions.