Table 2.

Cortical and hippocampus cytokine levels in mice treated with 3 mg/kg of LPS

	Cortex		Hippocampus
	NaCl	LPS	NaCl	LPS
IL-1β	23.94 ± 6.71	18.05 ± 1.44	35.1 ± 1.22	49.32 ± 8.25
TNF-α	1.24 ± 0.29	1.78 ± 0.10	1.62 ± 0.20	1.67 ± 0.56
IL-6	3.83 ± 0.95	3.56 ± 0.24	5.33 ± 0.26	3.87 ± 0.08

Levels of IL-1β, TNF-α and IL-6 measured by ELISA in cortex and hippocampus of 3-months old mice treated with 3 i.p. injections of LPS at 3 mg/kg or saline (0.9% NaCl) per 24 h before sacrifice. Cytokine levels are expressed in pg/mg of protein. Results are ± SEM of 3 mice per group.