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Lack of effect of clonidine in leukocytes cytokines production. IL-1β (IL-1, A), IL-10 (B) and TNFα (TNF, C) production by leukocytes activated in vivo with zymosan and retrieved 3 hr later from the gelfoam and incubated overnight in the absence (saline) or presence of clonidine in 1–100 μM concentrations.
