Impact of inhibition of erythropoietin treatment-mediated neurogenesis in the dentate gyrus of the hippocampus on restoration of spatial learning after traumatic brain injury

►Erythropoietin (EPO) improves spatial learning after traumatic brain injury (TBI). ►EPO treatment promotes neurogenesis in TBI rats. ►Inhibition of neurogenesis abolishes EPO-mediated spatial learning.