Figure 4

Study design. Study participants (N = 22) were randomized to intravenous injection of LPS or placebo (physiological saline) with a washout period of 3–4 weeks between interventions. Venous blood samples were obtained at baseline, 2, 4 and 7 hrs post injection (T0-T7). LPS: lipopolysaccharide 2 ng/kg body weight (Escherichia coli endotoxin).