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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Autoimmune diseases and autoantibodies in pediatric patients and their first-degree relatives with immunoglobulin A deficiency

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Author(s):
Fahl, Kristine [1] ; Silva, Clovis A. [2, 3] ; Pastorino, Antonio C. [1] ; Carneiro-Sampaio, Magda [1] ; Jacob, Cristina M. A. [1]
Total Authors: 5
Affiliation:
[1] Univ Sao Paulo, Sch Med, Dept Pediat, Pediat Allergy & Immunol Unit, Sao Paulo, SP - Brazil
[2] Univ Sao Paulo, Sch Med, Dept Pediat, Pediat Rheumatol Unit, Sao Paulo, SP - Brazil
[3] Univ Sao Paulo, Sch Med, Div Rheumatol, Sao Paulo, SP - Brazil
Total Affiliations: 3
Document type: Journal article
Source: Revista Brasileira de Reumatologia; v. 55, n. 3, p. 197-202, MAY-JUN 2015.
Web of Science Citations: 2
Abstract

Introduction: Clinical manifestations of Immunoglobulin A Deficiency (IgAD) include recurrent infections, atopy and autoimmune diseases. However, to our knowledge, the concomitant evaluations of autoimmune diseases and auto antibodies in a cohort of IgAD patients with current age >10 years and their relatives have not been assessed. Objectives: To evaluate autoimmune diseases and the presence of auto antibodies in IgAD patients and their first-degree relatives. Methods: A cross-sectional study was performed in 34 IgAD patients (current age >10 years) and their first-degree relatives. All of them were followed at a tertiary Brazilian primary immunodeficiency center: 27 children/adolescents and 7 of their first-degree relatives with a late diagnosis of IgAD. Autoimmune diseases and autoantibodies (antinuclear antibodies, rheumatoid factor, and anti-thyroglobulin, anti-thyroperoxidase and IgA class anti-endomysial antibodies) were also assessed. Results: Autoimmune diseases (n =14) and/or autoantibodies (n=10, four of them with isolated autoantibodies) were observed in 18/34 (53%) of the patients and their relatives. The most common autoimmune diseases found were thyroiditis (18%), chronic arthritis (12%) and celiac disease (6%). The most frequent autoantibodies were antinuclear antibodies (2%), anti-thyroglobulin and/or anti-thyroperoxidase (24%). No significant differences were observed in the female gender, age at diagnosis and current age in IgAD patients with and without autoimmune diseases and/or presence of auto antibodies (p >0.05). The frequencies of primary immunodeficiencies in family, autoimmunity in family, atopy and recurrent infections were similar in both groups (p >0.05). Conclusion: Autoimmune diseases and auto antibodies were observed in IgAD patients during follow-up, reinforcing the necessity of a rigorous and continuous follow-up during adolescence and adulthood. (C) 2014 Elsevier Editora Ltda. All rights reserved. (AU)

FAPESP's process: 08/58238-4 - Autoimmunity in children: investigation of the molecular and cellular bases of early onset of autoimmunity
Grantee:Magda Maria Sales Carneiro-Sampaio
Support Opportunities: Research Projects - Thematic Grants