Fig. 1

Effects of Dopamine Receptor Agonists on Glutamic Acid Decarboxylase 67 and Tyrosine Hydroxylase Expression after 6-Hydroxydopamine Treatment. Western blot analysis was performed to evaluate the expression of glutamic acid decarboxylase 67 (GAD67) and tyrosine hydroxylase (TH) in primary cultured neurons after 6-hydroxydopamine (6-OHDA) treatment. The same analysis was conducted following treatment with dopamine receptor agonists SKF38393 (D1-like receptor agonist) and quinpirole (D2-like receptor agonist). β-actin was used as an internal loading control. Data were expressed as mean ± SD of three independent experiments. ANOVA post hoc was used to calculate statistical significance. *, P < 0.05 compared with the control group; #, P < 0.05 compared with the 6-OHDA group.