SFTPD and acute respiratory distress syndrome: Ware et al. [11] showed that a panel of five biomarkers for ARDS (surfactant protein-D (SP-D), receptor for advanced glycation end-products (RAGE), IL-8, club cell secretory protein (CC-16), and IL-6) could predict a diagnosis of ARDS in patients with sepsis with an AUC of 0.75.