Real-Life Study for the Diagnosis of House Dust Mite Allergy - The Value of Recombinant Allergen-Based IgE Serology.
<b><i>Background:</i></b><i>Dermatophagoides pteronyssinus</i> is one of the most important perennial allergen sources worldwide. Molecular diagnostics using the commercially available major allergens (Der p 1 and Der p 2) in combination with Der p 10 do not detect house dust mite (HDM) sensitization in a number of cases when used alone. The objective was to evaluate the IgE reactivity profiles of these patients using an experimental immunoassay biochip. <b><i>Methods: </i></b>Sera of HDM-allergic patients (positive skin prick test, CAP class ≥1 for allergen extract, and positive intranasal provocation) were tested for IgE antibodi…
Is Quantitative sIgE Serology Suitable for Distinguishing Between Silent Sensitization and Allergic Rhinitis to Dermatophagoides pteronyssinus?
BACKGROUND AND OBJECTIVE An increasing number of studies have recently discussed whether provocation tests might be replaced by specific IgE serology in patients sensitized to airborne allergens. Objective: Our study aimed to analyze the concordance between a nasal provocation test with Dermatophagoides pteronyssinus and specific IgE measurements based on real-life data. METHODS We retrospectively analyzed concordance between the result of the provocation test and the IgE titer for house dust mite components and extracts in 223 patients with proven sensitization to D pteronyssinus. RESULTS In contrast to findings from other studies, the anti-Der p 1 level alone was not sufficient to disting…