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Revista argentina de endocrinología y metabolismo

versión On-line ISSN 1851-3034

Resumen

BOTTA, Silvia et al. An analysis of the relationship between HLA DRB1-DQB1 and autoantibodies, in families with autoinmune polyendocrine syndrome (APS). Rev. argent. endocrinol. metab. [online]. 2008, vol.45, n.1, pp.22-27. ISSN 1851-3034.

The APS is the association of autoimmune endocrine diseases, with other non-endocrine autoimmune disorders, named mayor and minor components. This syndrome was classified in 4 types. The alterations of the immune response cause regulatory faults; and HLA polymorphisms, among others; taken in conjunction with acquired or permanent factors, these represent triggers of autoimmunity. Our objective was to find out the association of HLA-DRB1*-DQB1* in individuals belonging to two families, with diagnosis in at least one of them APS, or with isolated autoimmune diseases. To determine serum antibodies: a21-OH, aGAD and aTPO and to observe the association with HLA haplotype. We have studied parents and offspring of two families, two members who suffered APS type 2 and 3, and others with autoimmune diseases. We have looked for HLA-DRB1*-DQB1* and quantified a21-OH, aTPO and aGAD. Patients with APS 2 and 3 showed HLA-DRB1*0301-DQB1*0201. Among the population we have studied, 5/9 had this HLA haplotype and at least one positive auto antibody. We have found the genetic factor in 2/3 of the members with autoimmune diseases corresponding to greater components. The observed relation between APS and HLA-DRB1*0301-DQB1*0201, increases the possibility of identifying people at risk of catching autoimmune affections in familiar groups in which at least one member suffers APS.

Palabras clave : HLA DRB1-DQB; Auto antibodies; APS.

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