Fig. 4

Striatal tyrosine hydroxylase measured by ELISA, effect of exercise (4 weeks treadmill), L-dopa (6 mg\kg, IP daily for 4 weeks), and their combination on tyrosine hydroxylase level in rotenone-treated rats (4 weeks, 2 mg\kg, SC). P-value is obtained by ANOVA and is considered significant if < 0.05. *significant in comparison to the control group, ^#significant when compared to the rotenone group, ^$significant when compared to the rotenone exercise group. n = 10 in each group