Figure 1. Evaluation of compounds on cell viability (A) cell viability after MPP+ treatment; (B) cell viability after MB-3 treatment; (C) cell viability after SRC-3 treatment; (D) cell viability after SB203580 treatment; (E) cell viability after isoproterenol treatment; (F) cell viability after Compound C treatment; (G) cell viability after AICAR treatment. * P < 0.05, ** P < 0.01.