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Arquivos Brasileiros de Endocrinologia & Metabologia

On-line version ISSN 1677-9487

Abstract

NUNES, Reinaldo Cavalcante et al. Prevalence of anti-thyroid peroxidase and anti-adrenal 21-hidroxylase in type 1 diabetes patients. Arq Bras Endocrinol Metab [online]. 2009, vol.53, n.4, pp.461-465. ISSN 1677-9487.  https://doi.org/10.1590/S0004-27302009000400012.

There is still no consensus about the best strategy to screen Addison's disease (AD) in type 1 diabetes mellitus (T1DM) patients. OBJECTIVE: The aim of this study was to determine the frequency of anti-21-hydroxilase (anti-21OH) in a multiethnic T1DM population and investigate if its presence is associated with any adrenal dysfunction or thyroid autoimmunity. METHODS: Forty individuals underwent an interview and blood was drawn for anti-thyroperoxidase (anti-TPO), anti-21OH, TSH, free T4 and cortisol measurement. RESULTS: Anti-21OH was found in 7.5% (n = 3), none with adrenal dysfunction. This antibody was not exclusively seen in patients with anti-TPO (+). Anti-TPO was positive in 25% and associated with higher TSH levels (p = 0.034) and older age (p = 0.009). CONCLUSIONS: Although the frequency of anti-TPO in this sample was similar to previous studies, a higher prevalence of anti-21-OH was found. However, no coexisting adrenal dysfunction was detected, which does not support universal screening for AD in this group.

Keywords : Diabetes mellitus type 1; thyroiditis; autoimmune; Addison disease; autoantibodies; prevalence.

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