Figure 4. IL-37tg old mice produce lower levels of cardiodepressant cytokines during endotoxemia.
IL-37tg and WT old mice were treated with lipopolysaccharide (LPS, 0.5 mg/kg, iv) or normal saline. Levels of IL-1β, TNF-α, and IL-6 in the myocardium and plasma were analyzed by ELISA 6 hours after LPS treatment. Levels of IL-1β (A), TNF-α (B), and IL-6 (C) in the myocardium and plasma were lower in IL-37tg mice. Data is expressed as mean ± SD. n=6 mice in each group; one-tailed ANOVA; *P<0.05 vs. corresponding control (Ctrl); #P<0.05 vs. WT mice treated with LPS.