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Rev Assoc Med Bras (1992) · Jun 2020
Serum immunoglobulin a deficiency and autoimmune comorbidities: a crossectional study in 281 patients with systemic lupus erythematosus.
- Gustavo Felício Alexandroni Linzmeyer, Fabiane Karen Miyake, Thiago Alberto F C Gomes Dos Santos, and Thelma L Skare.
- Faculdade Evangélica Mackenzie, Curitiba, PR, Brasil.
- Rev Assoc Med Bras (1992). 2020 Jun 1; 66 (6): 752-756.
AbstractOBJECTIVE To study the profile of associated autoimmune diseases in a series of patients with systemic lupus erythematosus (SLE) and see if such associations are linked to IgA deficiency. METHODS Two hundred eighty-one patients with SLE were studied for Ig A levels by nephelometry. Levels equal to or under 0.05g/dL were considered as IgA deficiency. Epidemiological and clinical data, including the presence of associated autoimmune diseases, were extracted from the patient's charts. RESULTS Ig A deficiency was found in 6% of the patients. In 30.2% of SLE patients, there was at least one more autoimmune disease; Hashimoto thyroiditis and Sjögren's syndrome were the most common. No association between the occurrence of associated autoimmune disease with IgA deficiency was found. CONCLUSIONS There is a high prevalence of autoimmune diseases associated with SLE. IgA deficiency does not affect the presence of these associations.
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