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Changes in serum CORT levels after ICV IL-1β administration.
Rats were treated ICV with IL-1β (50 ng/day/kg) or aCSF (CON) for 4 h or 12 days. The 10:00 AM serum CORT levels were determined as described in Materials and Methods. Bar graphs represent mean ± SEM of 4 animals/group. * P ≤ 0.05.
