Table 3.

Dopaminergic activity within the nucleus accumbens as a function of chronic stress and IFN-γ deletion.

	Concentration (ng/mg protein)			DA turnover [(DOPAC+HVA)/DA]
	DA	DOPAC	HVA
WT-no stress	123.57 ± 14.76	15.43 ± 1.19	7.95 ± .43	0.216 ± 0.035
WT-stress	152.78 ± 17.56	15.98 ± 1.04	5.96 ± .91	0.173 ± 0.039
KO-no stress	156.33 ± 20.07	16.81 ± 1.36	5.50 ± .54	0.155 ± 0.017
KO-stress	186.87 ± 19.00	17.67 ± 1.61	6.28 ± .85	0.145 ± 0.022

Data are presented as mean ± SEM. DA, dopamine; DOPAC, 3,4-dihydroxyphenylacetic acid; HVA, homovanillic acid.