WNK2 and acute respiratory distress syndrome: In terms of lung microbiota function, the abundance of proteins in four signaling pathways, the Wnt, Notch, chronic myeloid leukemia signaling pathway, and mitogen-activated protein kinase signaling pathway-yeast (KO04011), was significantly negatively correlated with serum IL-1β and IL-10 levels, suggesting an association between lung microbiota and the pathogenesis of ALI/ARDS.184