Regional difference of GLT1 protein in neonatal rats among ceftriaxone treated and saline groups. Immunohistochemical staining of GLT1 in saline and ceftriaxone treated groups in P7 rat brain. (ceftriaxone: pre-treatment with 3 dosages of 200 mg/kg ceftriaxone, saline: pre-treatment with 3 dosages of saline). A, E: corpus callosum. B, F: cerebral cortex. C, G: hippocampus. D, H: striatum. Increased GLT1 protein expression in cerebral cortex was noted in ceftriaxone group compared to saline group. There was no significant difference in GLT1 expression in corpus callosum, hippocampus and striatum. Scale bar = 100 μm.