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Selective IgE deficiency, immune dysregulation, and autoimmunity

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Selective IgE deficiency (IgED) is currently defined as a significant decrease in serum levels of IgE (<2 kIU/L) in a patient whose other immunoglobulin levels are normal. There are no published large-scale epidemiological studies regarding the prevalence of and clinical features of IgED. In the population-based case‐control study, we investigated clinical and laboratory characteristics of patients with IgED. Case samples were drawn from all subjects (n = 18487), with serum total IgE measurement during 2012 at Leumit Health Care Services (Israel) and had serum total IgE of <2 kIU/L. The control group was randomly sampled from the remaining 18,261 subjects with a case‐control ratio of four controls for each case (1:4). Comorbid diseases were identified by specific International Classification of Diseases, Ninth Revision, Clinical Modification diagnostic codes given by the corresponding board-certificated physicians. Two hundred twenty-six subjects showed serum total IgE levels of <2 kIU/L; 68 (30.9%) were between the ages of 4 and 12 years (children) and 250 (69.1%) were ≥12 years old (adults). Matched control groups were selected for each age group. The children group was characterized by higher prevalence of asthma and hyperreactive airways disease; and both children and adult groups had significantly higher prevalence of chronic sinusitis, otitis media, autoimmune, and oncological diseases than their respective controls. Undetectable serum total IgE may serve as a marker of immune dysregulation and autoimmunity.
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Keywords: Autoimmune; IgE; deficiency; selective; sinusitis

Document Type: Research Article

Affiliations: Leumit Health Care Services, Ashdod, Israel

Publication date: 01 March 2014

More about this publication?
  • Allergy and Asthma Proceedings is a peer reviewed publication dedicated to distributing timely scientific research regarding advancements in the knowledge and practice of allergy, asthma and immunology. Its primary readership consists of allergists and pulmonologists.

    The goal of the Proceedings is to publish articles with a predominantly clinical focus which directly impact quality of care for patients with allergic disease and asthma.

    Featured topics include asthma, rhinitis, sinusitis, food allergies, allergic skin diseases, diagnostic techniques, allergens, and treatment modalities. Published material includes peer-reviewed original research, clinical trials and review articles.

    Articles marked "F" offer free full text for personal noncommercial use only.

    The journal is indexed in Thomson Reuters Web of Science and Science Citation Index Expanded, plus the National Library of Medicine's PubMed service.
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