Expression of GAD1 mRNA splicing isoforms and GAD2 in olfactory bulb, frontal cortex, medial striatum, lateral striatum, hippocampus and cerebellum of adult mouse brain. Samples were examined for GAD transcripts by quantitative RT-PCR. Number of transcripts were calculated per 10000 transcripts of GAPDH. Data is presented as mean ± SEM of five individual animals and analyzed by one-way ANOVA followed by Tukey’s post hoc test. ** P ≤ 0.0001, * P < 0.05. (CpuM) medial striatum; (CpuL) lateral striatum.