In the third study, proinflammatory mediators VEGF‐A and CCL2 were evaluated with a bead‐based immunoassay from serum samples of 114 BDs and 25 non‐BDs, and from bronchoalveolar lavage fluid (BALF) of 23 English Bulldogs and 14 non‐BDs. This evidence concerns the gene CCL2 and Diamond-Blackfan anemia.