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Selective Iga Deficiency: Epidemiology, Pathogenesis, Clinical Phenotype, Diagnosis, Prognosis and Management Publisher Pubmed



Yazdani R1, 2, 3 ; Azizi G4, 5 ; Abolhassani H2, 6 ; Aghamohammadi A2
Authors
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Authors Affiliations
  1. 1. Department of Immunology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
  2. 2. Research Center for Immunodeficiencies, Pediatrics Center of Excellence, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran
  3. 3. Molecular Immunology Interest Group (MIIG), Universal Scientific Education and Research Network (USERN), Isfahan, Iran
  4. 4. Imam Hassan Mojtaba Hospital, Alborz University of Medical Sciences, Karaj, Iran
  5. 5. Research Center for Immunodeficiencies, Tehran University of Medical Sciences, Tehran, Iran
  6. 6. Division of Clinical Immunology, Department of Laboratory Medicine, Karolinska Institutet at Karolinska University Hospital Huddinge, Stockholm, Sweden

Source: Scandinavian Journal of Immunology Published:2017


Abstract

Selective immunoglobulin A deficiency (SIgAD) is the most common primary antibody deficiency. Although more patients with SIgAD are asymptomatic, selected patients suffer from different clinical complications such as pulmonary infections, allergies, autoimmune diseases, gastrointestinal disorders and malignancy. Pathogenesis of SIgAD is still unknown; however, a defective terminal differentiation of B cells and defect in switching to IgA-producing plasma cells are presumed to be responsible. Furthermore, some cytogenic defects and monogenic mutations are associated with SIgAD. There is no specific treatment for patients with symptomatic IgA deficiency, although prophylactic antibiotic therapy along with circumstantial immunoglobulin replacement with justification and supportive care (using a product that contains minimal IgA) could be helpful for patients with a severe phenotype. The epidemiology, pathogenesis, clinical phenotype, diagnosis, prognosis, management and treatment in patients with SIgAD have been reviewed. © 2016 The Foundation for the Scandinavian Journal of Immunology
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