Through the MPAACH cohort we’re uncovering how atopic dermatitis progresses to other allergic conditions in children, with a focus on both Black and White populations. Our research reveals that non-lesional skin, which is visually unaffected by eczema, plays a critical role in the severity of AD and co-sensitization to allergens. We have discovered that sensitization rates are much higher in children with AD compared to high-risk asthma cohorts, especially in White children.
Our work also shows that the pathways from AD to asthma and other allergic diseases differ between Black and White children. In Black children, genetic and environmental factors primarily drive asthma risk, while White children are more likely to experience sensitization through an impaired skin barrier, leading to the development of food allergy and allergic rhinitis. These studies challenge the traditional atopic march model and support a new framework for understanding allergic disease progression.