CXCL9 and Crohn disease: CXCL9 polymorphisms were found associated with Crohn disease, although only in pediatric patients.39,40 In addition, a recent study also identified a major role of MIG (CXCL9) in age-related chronic inflammation.41 Taken together, we did not find strong evidence supporting common inflammatory biomarkers affecting both risk of AD and inflammatory diseases.