Stereology results of NeuN-positive cell counts in the dentate hilus. When quantified using unbiased stereology, we found that neuronal numbers for all mTBI groups were significantly decreased compared to the sham group (***p<0.001, Sham). Dentate hilar neuronal counts in the post-hyperthermia group (#p<0.05, Post-H), and the pre/post-hyperthermia group (##p<0.001, Pre/post-h) were significantly decreased from the normothermia group.