Fig. 1From: Loss of IL-33 enhances elastase-induced and cigarette smoke extract-induced emphysema in miceKinetics of IL-33 in the lungs of porcine pancreas elastase (PPE)-treated WT mice. a Experimental protocol. b Kinetics of IL-33 in the lung. The results for each group are shown as the mean ± SEM; n = 7–9 in each group. *P < 0.05 compared to naïve mice. Day 0 indicates the group without PPE instillationBack to article page