Gene expression of GAD67 (A), excitatory amino acid transporter 3 (EAAT3, B), and the β subunit of the voltage-gated sodium channel (NaVβ3, C) within the medial PFC. Data are presented relative to values for sham-injured animals injected with sesame oil (Veh). Scatter plots represent each individual data point and error bars represent standard errors of the mean. D: Correlation between discrimination index in the novel object recognition test and GAD67 mRNA expression for sham- and brain-injured animals that were injected with either sesame oil (Veh) or progesterone (Prog). *, p<0.05 compared to sham-injured animals injected with sesame oil. #, p<0.05 compared to sham- and brain-injured animals injected with sesame oil.