Rosialzira Natasha Vera-Berrios MD , Sonia Vázquez-Cortés MD , Alejandro Gonzalo-Fernández MSc , Carsten Bindslev-Jensen MD, PhD , Michael Clausen MD , Rosa Ferrara MD , Maria Gunnbjornsdottir MD, PhD , Laurian Jongejan PhD , Anna Lewandowska-Polak MD, PhD , Adriano Mari MD , Nikolaos G. Papadopoulos MD, PhD , Lars K. Poulsen PhD , Náyade del Prado MSc , Sara Santos-Magadán MD , Heidi Schnoor MSc , George Stavroulakis MD , Serge A. Versteeg BSc , Marianne Witten MD, PhD , Ronald van Ree PhD , Montserrat Fernández-Rivas MD, PhD
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引用次数: 0
Abstract
Background
Fish allergy affects children and adults worldwide, and there are transient and persistent phenotypes.
Objective
We aimed to analyze persistence, severity, and reactivity thresholds in challenge-confirmed fish-allergic patients sensitized to parvalbumin.
Methods
Patients 12 to 65 years old reporting immediate reactions to fish, with fish skin prick test ≥5 mm and IgE to cod and carp β-parvalbumins ≥0.70 kUA/L, were recruited in 6 European centers. Except for the case with recent severe anaphylaxis, patients were eligible for a double-blind placebo-controlled food challenge with cod, followed, if negative, by an open food challenge. Severity of reported and elicited reactions was graded with the Food Allergy Severity Score, eliciting dose (ED) was calculated using interval-censoring survival analysis and probabilistic models, and factors associated with a positive challenge and severe reactions were analyzed by logistic regression.
Results
Of 42 patients fulfilling inclusion criteria, fish allergy was confirmed in 30 (71.4%) patients. The median fish allergy duration was 23 years. Although 70% of cases reported anaphylaxis with respiratory or cardiovascular involvement, food challenges resulted in oropharyngeal symptoms (34.7%) or mild systemic reactions (73.9%), with only 1 anaphylaxis with bronchospasm (4.3%). Male sex was associated with severe reactions (odds ratio: 5.44, 95% confidence interval: 1.04-28.53). ED10 for objective symptoms was 0.99 to 2.54 mg of protein. No correlation was found between severity and ED.
Conclusions
Adolescents and adults with persistent fish allergy linked to parvalbumin sensitization have experienced severe allergic reactions in real life and have a low threshold of reactivity. Our findings support the need for large-scale studies and new therapeutic options for these fish-allergic patients.
期刊介绍:
JACI: In Practice is an official publication of the American Academy of Allergy, Asthma & Immunology (AAAAI). It is a companion title to The Journal of Allergy and Clinical Immunology, and it aims to provide timely clinical papers, case reports, and management recommendations to clinical allergists and other physicians dealing with allergic and immunologic diseases in their practice. The mission of JACI: In Practice is to offer valid and impactful information that supports evidence-based clinical decisions in the diagnosis and management of asthma, allergies, immunologic conditions, and related diseases.
This journal publishes articles on various conditions treated by allergist-immunologists, including food allergy, respiratory disorders (such as asthma, rhinitis, nasal polyps, sinusitis, cough, ABPA, and hypersensitivity pneumonitis), drug allergy, insect sting allergy, anaphylaxis, dermatologic disorders (such as atopic dermatitis, contact dermatitis, urticaria, angioedema, and HAE), immunodeficiency, autoinflammatory syndromes, eosinophilic disorders, and mast cell disorders.
The focus of the journal is on providing cutting-edge clinical information that practitioners can use in their everyday practice or to acquire new knowledge and skills for the benefit of their patients. However, mechanistic or translational studies without immediate or near future clinical relevance, as well as animal studies, are not within the scope of the journal.