Augmented proliferation of SVZ NPCs and migration of these cells toward injured brain regions has been observed following intraventricular infusion of EGF (136), EGF and EPO (137) (Figures 2A–H), EGF and FGF-2 (138), VEGF (147), or BDNF (133) into the post-stroke rodent brain. The gene discussed is EPO; the disease is stroke disorder.