MUC5AC and asthma: They identified 40,892 differentially methylated CpG‐sites in asthmatics (54% hypermethylated, 46% hypomethylated), and gene expression analysis showed the DMRs modestly correlated with their nearest gene expression, including asthma‐associated genes, with the authors singling out the previously mentioned CCL26, and Mucin 5AC (MUC5AC), with roles in airway defense against particulates/pathogens.