Endotoxemia was assessed by measuringLBP (Figure 10A) andproinflammatory cytokine IL-1β(Figure 10B) in serum.Exposure to arsenate increased serum LBP levels relative to controlanimals at 15 and 30 mg/L As(V) concentrations (35–36%). Here, IL1B is linked to serum lipopolysaccharide activity.