Atopy Apr 2026
: Often the first sign in infancy, caused by skin barrier defects (e.g., filaggrin mutations) that allow for epicutaneous allergen sensitization.
While there is currently no cure, management focuses on controlling inflammation and restoring barrier function. Atopy - StatPearls - NCBI Bookshelf - NIH : Often the first sign in infancy, caused
: Upon re-exposure, allergens cross-link IgE on the surface of mast cells, causing degranulation and the release of inflammatory mediators like histamine and leukotrienes. 2. The Atopic March caused by skin barrier defects (e.g.
: Systemic immune priming eventually leads to upper and lower airway inflammation. 3. Key Management Strategies : Often the first sign in infancy, caused
: Antigen-presenting cells perceive allergens (like pollen or dust mites) as danger signals, activating TH2 or ILC2 cells.
: These cells produce cytokines (IL-4, IL-13) that trigger B cells to differentiate into plasma cells producing allergen-specific IgE.
Atopy typically follows a predictable chronological progression:
