Figure 1. Changes in cytokine production following IFN-γ treatment. Whole blood was treated with 100 ng/mL of LPS, 100 ng/mL of interferon (IFN)-γ or both for 18 h. Plasma concentrations of (A) TNF-α and (B) IL-10 were determined by ELISA. Values are mean ± S.E.M. N = 6 for each condition. * P < 0.05,** P < 0.01, Repeat Measures ANOVA with post-hoc Holms-Sidak test.