Table 1. Total DA and DOPAC content and DA/DOPAC ratio from homogenized striatal lysates. The number of rats analyzed (n) is indicated in parentheses.

	DA (μg DA/mg protein)	DOPAC (μg DOPAC/mg protein)	DA/DOPAC
0 mg/kg (n = 5)	1.1 ± 0.3	0.31 ± 0.09	4.1 ± 0.5
5 mg/kg (n = 5)	1.1 ± 0.3	0.30 ± 0.09	3.6 ± 0.6
20 mg/kg (n = 5)	0.88 ± 0.3	0.25 ± 0.08	2.9 ± 0.7