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01-10-2012 | Original Article

Long-term clinical follow-up and molecular genetic findings in eight patients with triple A syndrome

Authors: Miroslav Dumic, Nina Barišic, Vesna Kusec, Katarina Stingl, Mate Skegro, Andrija Stanimirovic, Katrin Koehler, Angela Huebner

Published in: European Journal of Pediatrics | Issue 10/2012

Abstract

The triple A syndrome (Allgrove syndrome, OMIM #231550) is caused by autosomal recessively inherited mutations in the AAAS gene on chromosome 12q13 encoding the nuclear pore protein ALADIN. This multisystemic disease is characterised by achalasia, alacrima, adrenal insufficiency and neurological impairment. We analyse long-term clinical follow-up and results of sequencing of the AAAS gene in eight patients with triple A syndrome aged from 2 to 35 years. At the time of diagnosis, all patients presented with alacrima, neurological dysfunction, dermatological abnormalities, seven of them with adrenal insufficiency and five of them with achalasia. Sequencing of the AAAS gene identified the p.S263P mutation in five of eight patients, supporting the hypothesis that this mutation is a founder mutation in Slavic population. One of the patients is homozygous for the p.S263P mutation, two are compound heterozygous for the p.S263P and the p.G14fs mutation, two are compound heterozygous for the p.S263Pro mutation and p.S296Y mutation, two are compound heterozygous for the p.G14fs and the p.Q387X mutations and one is homozygous for the p.Q387X mutation. In the course of the follow-up time of 4–29 years, progression of existing and appearance of new symptoms developed. Although severe, many of these symptoms presented in all six young adult patients are often overlooked or neglected: postural hypotension with blurred vision and syncope, hyposalivation resulting with complete edentulosis, talocrular contractures with permanent walking difficulties and erectile dysfunction in male patients. Triple A syndrome is a progressive debilitating disorder which may seriously affect quality of life and even be life-threatening in patients with severe neurological impairment. Conclusion: Long-term follow-up of patients with triple A syndrome revealed a variety of the clinical features involving many systems. Progressive natural course of the disease may seriously affect quality of life and even be life-threatening in patients with severe neurological impairment.

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Title: Long-term clinical follow-up and molecular genetic findings in eight patients with triple A syndrome
Authors: Miroslav Dumic
Nina Barišic
Vesna Kusec
Katarina Stingl
Mate Skegro
Andrija Stanimirovic
Katrin Koehler
Angela Huebner
Publication date: 01-10-2012
Publisher: Springer-Verlag
Published in: European Journal of Pediatrics / Issue 10/2012
Print ISSN: 0340-6199
Electronic ISSN: 1432-1076
DOI: https://doi.org/10.1007/s00431-012-1745-1

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Long-term clinical follow-up and molecular genetic findings in eight patients with triple A syndrome

Abstract

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Abstract

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