Data di Pubblicazione:
2018
Citazione:
Clinical and genetic characterisation of a series of patients with triple A syndrome / E. Kurnaz, P. Duminuco, Z. Aycan, Ş. Savaş-Erdeve, N.M. Sahin, Ş. Muratoğlu, M. Kestin, E. Bayramoğlu, M. Bonomi, S. Cetinkaya. - In: EUROPEAN JOURNAL OF PEDIATRICS. - ISSN 0340-6199. - 177:3(2018 Mar), pp. 363-369.
Abstract:
Triple A syndrome (TAS) or Allgrove syndrome (OMIM #231550) is a rare autosomal recessive disorder characterised by adrenocorticotropic hormone-resistant adrenal insufficiency, alacrima, achalasia, and neurological and dermatological abnormalities. Mutations in the AAAS gene on chromosome 12q13 encoding the nuclear pore protein ALADIN have been reported in these patients. Between 2006 and 2017, we evaluated six patients with a clinical diagnosis of TAS, based on the presence of at least two symptoms, usually adrenal insufficiency and alacrima. In all cases, genetic analysis revealed homozygous mutations in the AAAS gene. One novel mutation was detected: a homozygous 10-bp deletion (c.1264_1273del, p.Q422NfsX126) in exon 14 of the AAAS gene that caused a frameshift that introduced an aberrant stop codon after 126 amino acids. This genetic variant is likely to be pathogenic because it caused a significant change in protein structure. A precise genotypeâphenotype correlation was impossible to establish. Conclusions: Based on our experience, we recommend that molecular analysis should be performed in the presence of alacrima and at least one more symptom of TAS. Our cases share many clinical features of TAS and underline the variability in this syndrome, as well as the need for thorough investigation following a multidisciplinary approach.(Table presented.)
Tipologia IRIS:
01 - Articolo su periodico
Keywords:
AAAS gene; ACTH resistance; adrenal insufficiency; Triple A syndrome; pediatrics, perinatology and child health
Elenco autori:
E. Kurnaz, P. Duminuco, Z. Aycan, Ş. Savaş-Erdeve, N.M. Sahin, Ş. Muratoğlu, M. Kestin, E. Bayramoğlu, M. Bonomi, S. Cetinkaya
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