TABLE 3.

Summary of cytokines/chemokines in the brain affected by PB treatment

Chemokine/cytokine	Expression	P	Treatment
Male (7 d)
IL-2	Increased	0.01	PB vs. PBa
IL-9	Increased	0.05	PB vs. controlb
MIP-1a	Decreased	0.05	PB vs. PBa
Female (30 d)
IL-7	Decreased	0.01	PB vs. controlb
IL-15	Decreased	0.05	PB vs. PBa

^aPB (90 μg/ml) vs. PB (9 μg/ml); ^bPB (9 μg/ml) vs. control.