The knockdown of hepcidin in airway epithelial cells affected pulmonary ferroportin after cecal ligation and puncture (CLP) surgery. The ferroportin level was measured using Western blot analysis. Each lane represents one mouse. Quantified data are shown. (A) The ferroportin level in lung homogenates. *P <0.0001. (B) The ferroportin level in alveolar macrophages (AM). *P <0.05.