Dentate gyrus stained with thionin (A,C,E) and processed for in situ hybridization for glutamic acid decarboxylase (B,D,F) in a control rat (A,B), a rat 5 days after status epilepticus (C,D), and an epileptic rat (E,F). h, hilus; g, granule cell layer; m, molecular layer; CA3, CA3 pyramidal cell layer. Numbers of granule cells (G), hilar neurons (H), and GABAergic interneurons (I) per dentate gyrus in controls, rats 5 days after status epilepticus, and epileptic rats. Asterisks indicate differences from the control value, unless specified by a bar, which indicates a difference between rats 5 days after status epilepticus and epileptic animals (P < 0.05, ANOVA, Student–Newman–Keuls method). Values indicate mean ± SEM n = 6, 3, and 5 rats for control, 5 days after status epilepticus, and epileptic groups, respectively.