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A Longitudinal Follow-up of Autoimmune Polyendocrine Syndrome Type 1
Univ Bergen, Dept Clin Sci, N-5012 Bergen, Norway..
Univ Bergen, Dept Clin Sci, N-5012 Bergen, Norway..
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Sciences, Autoimmunity. Uppsala University, Science for Life Laboratory, SciLifeLab. Karolinska Inst, Dept Med Solna, S-17176 Stockholm, Sweden..
Haukeland Hosp, Dept Med, N-5021 Bergen, Norway..
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2016 (English)In: Journal of Clinical Endocrinology and Metabolism, ISSN 0021-972X, E-ISSN 1945-7197, Vol. 101, no 8, 2975-2983 p.Article in journal (Refereed) Published
Abstract [en]

Context: Autoimmune polyendocrine syndrome type 1 (APS1) is a childhood-onset monogenic disease defined by the presence of two of the three major components: hypoparathyroidism, primary adrenocortical insufficiency, and chronic mucocutaneous candidiasis (CMC). Information on longitudinal follow-up of APS1 is sparse. Objective: To describe the phenotypes of APS1 and correlate the clinical features with autoantibody profiles and autoimmune regulator (AIRE) mutations during extended follow-up (1996-2016). Patients: All known Norwegian patients with APS1. Results: Fifty-two patients from 34 families were identified. The majority presented with one of the major disease components during childhood. Enamel hypoplasia, hypoparathyroidism, and CMC were the most frequent components. With age, most patients presented three to five disease manifestations, although some had milder phenotypes diagnosed in adulthood. Fifteen of the patients died during follow-up (median age at death, 34 years) or were deceasedsiblingswithahighprobability of undisclosed APS1. All except three had interferon-omega) autoantibodies, and allhadorgan-specific autoantibodies. The most common AIRE mutation was c.967_979del13, found in homozygosity in 15 patients. A mild phenotype was associated with the splice mutation c.879+1G>A. Primary adrenocortical insufficiency and type 1 diabetes were associated with protective human leucocyte antigen genotypes. Conclusions: Multiple presumable autoimmune manifestations, in particular hypoparathyroidism, CMC, and enamel hypoplasia, should prompt further diagnostic workup using autoantibody analyses (eg, interferon-omega) and AIRE sequencing to reveal APS1, even in adults. Treatment is complicated, and mortality is high. Structured follow-up should be performed in a specialized center.

Place, publisher, year, edition, pages
2016. Vol. 101, no 8, 2975-2983 p.
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Endocrinology and Diabetes
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URN: urn:nbn:se:uu:diva-303291DOI: 10.1210/jc.2016-1821ISI: 000381930200004PubMedID: 27253668OAI: oai:DiVA.org:uu-303291DiVA: diva2:971315
Funder
Novo Nordisk, NNF14OC0011005
Available from: 2016-09-16 Created: 2016-09-15 Last updated: 2016-09-16Bibliographically approved

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Landegren, Nils
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