Background: Previous studies show that 6-9% of young adults in Reykjavik are sensitised to the house dust mite (HDM) Dermatophagoides pteronyssinus (D. pteronyssinus). However, only negligible amounts of HDM and HDM allergens were detected in their homes. The study investigates what characterizes these individuals.
Methods: We investigated all participants in the European Community Respiratory Health Surveys I and II (ECRHS I and II) with D. pteronyssinus specific IgE, in the years 1991-92. A grass positive but D. pteronyssinus negative control group was recruited from the same cohort. A detailed questionnaire was administered and the specific IgE (Pharmacia CAP system) against six D. pteronyssinus cross-reactive allergens was measured.
Results: Of 601 ECRHS I participants with available IgE results, 88% returned for ECRHS II, 8.4 years later. Of 49 individuals with D. pteronyssinus specific IgE in ECRHS I, 24 had become negative in ECRHS II. Compared with controls, HDM sensitive subjects were more often men who had lived on farms or kept aquaria fish in childhood. Of those with specific IgE against D. pteronyssinus in ECRHS I and II, 75% had detectable IgE antibodies (>or=0.35 kU/l) to cross-reactive allergens compared with none in the control group (p<0.0001): Lepidoglyphus destructor (L. destructor) (67%), shrimp (58%), cockroach (33%), mosquito (17%), tropomyosin (17%) and blood worm (4%).
Conclusions: Icelanders with specific IgE to D. pteronyssinus are more often men who spent time on farms in childhood and today have high prevalence of IgE antibodies cross-reactive to D. pteronyssinus.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.2332/allergolint.O-06-447 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Effectiveness of Tralokinumab in Different Phenotypes of Atopic Dermatitis: A Real-World Study.
Dermatol Ther (Heidelb)
January 2025
Department of Medical-Surgical Sciences and Biotechnologies, Dermatology Unit "Daniele Innocenzi", "Sapienza" University of Rome, Polo Pontino, 04100, Latina, Italy.
Introduction: Atopic dermatitis (AD) is a chronic inflammatory skin disease characterized by pruritus and a relapsing course, affecting approximately 25% of children and 4-7% of adults. This study evaluated the efficacy, safety, and quality-of-life impact of tralokinumab, a humanized monoclonal antibody targeting interleukin-13 (IL-13), in treating moderate-to-severe AD in a real-world setting, with a focus on different AD phenotypes.
Methods: An observational cohort of 30 adults treated with tralokinumab for ≥ 16 weeks was analyzed.
The Role of TSLP and IL-1 β and Their Genetic Variants in the Pathogenesis of Single and Multiple Atopic Diseases in Children.
J Clin Med
January 2025
Department and Clinic of Paediatrics, Allergology and Cardiology, Wroclaw Medical University, ul. Chałubińskiego 2a, 50-368 Wrocław, Poland.
Allergic diseases commonly coexist, manifesting in a sequence described as the "allergic march". This study aimed to evaluate TSLP's and IL-1β's potential as biomarkers in both single and multi-pediatric atopic diseases like atopic eczema, food allergy, and anaphylaxis and analyze specific SNPs in the TSLP and IL-1β genes to determine their associations with their occurrence and severity. This analysis included 109 atopic children diagnosed with atopic dermatitis, food allergy, or anaphylaxis alongside a control group of 57 non-atopic children.
View Article and Find Full Text PDFGenetic and Immunological Insights into Tick-Bite Hypersensitivity and Alpha-Gal Syndrome: A Case Study Approach.
Int J Mol Sci
January 2025
Agence Nationale de Sécurité Sanitaire de l'alimentation, de l'environnement et du Travail, l'Institut National de Recherche Pour l'agriculture, l'alimentation et l'environnement, Ecole Nationale Vétérinaire d'Alfort, UMR Biologie Moléculaire et Immunologie Parasitaires, Laboratoire de Santé Animale, F-94700 Maisons-Alfort, France.
Tick-bite hypersensitivity encompasses a range of clinical manifestations, from localized allergic reactions to systemic conditions like alpha-gal syndrome (AGS), an IgE-mediated allergy to galactose-α-1,3-galactose (α-Gal). This study investigated the clinical, molecular, immunological, and genetic features of two hypersensitivity cases. Two cases were analyzed: a 30-year-old woman with fixed drug reaction (FDR)-like hypersensitivity and a 10-year-old girl with AGS exhibiting borderline α-Gal-specific IgE.
View Article and Find Full Text PDFMolecular allergy diagnosis enabling personalized medicine.
J Allergy Clin Immunol
January 2025
Institute of Pathophysiology and Allergy Research, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria; Laboratory of Immunopathology, Department of Clinical Immunology and Allergy, Sechenov First Moscow State Medical University, Moscow, Russia; Karl Landsteiner University, Krems an der Donau, Austria; National Research Center, National Research Center Institute of Immunology (NRCI) Institute of Immunology, Federal Medical-Biological Agency of Russia (FMBA), Moscow, Russia.
Allergic patients are characterized by complex and patient-specific IgE sensitization profiles to various allergens, which are accompanied by different phenotypes of allergic disease. Molecular allergy (MA) diagnosis establishes the patient's IgE reactivity profile at a molecular allergen level and has moved allergology into the "Precision Medicine" era. Molecular allergology started in the late 1980s with the isolation of the first allergen-encoding DNA sequences.
View Article and Find Full Text PDFSingle-cell sequencing of human Langerhans cells identifies altered gene expression profiles in patients with atopic dermatitis.
Immunohorizons
January 2025
Department of Medical Microbiology and Infection Prevention, Amsterdam UMC location University of Amsterdam, Amsterdam, the Netherlands.
Atopic dermatitis (AD) is characterized by dysregulated T cell immunity and skin microbiome dysbiosis with predominance of Staphylococcus aureus, which is associated with exacerbating AD skin inflammation. Specific glycosylation patterns of S. aureus cell wall structures amplify skin inflammation through interaction with Langerhans cells (LCs).
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!