ISSN: 1308-5727 | E-ISSN: 1308-5735
Volume: 16 Issue: 1 Year: 2024
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Turkish Society for Pediatric Endocrinology and Diabetes
Clinical and Molecular Genetic Analysis in Three Children with Wolfram Syndrome: A Novel WFS1 Mutation (c.2534T>A) [J Clin Res Pediatr Endocrinol]
J Clin Res Pediatr Endocrinol. 2017; 9(1): 80-84 | DOI: 10.4274/jcrpe.2894

Clinical and Molecular Genetic Analysis in Three Children with Wolfram Syndrome: A Novel WFS1 Mutation (c.2534T>A)

Gamze Çelmeli1, Doga Türkkahraman2, Yusuf Çürek1, Jayne Houghton3, Sema Akçurin4, Iffet Bircan1
1Akdeniz University Faculty Of Medicine, Department Of Pediatric Endocrinology, Antalya, Turkey
2Antalya Training And Research Hospital, Clinic Of Pediatric Endocrinology, Antalya, Turkey
3University Of Exeter Medical School, Institute Of Biomedical And Clinical Science, Exeter, United Kingdom
4Akdeniz University Faculty of Medicine, Department of Pediatric Endocrinology, Antalya, Turkey

Wolfram syndrome (WS) is an autosomal recessive disorder caused by mutations in WFS1 gene. The clinical features include diabetes insipidus, diabetes mellitus (DM), optic atrophy, deafness, and other variable clinical manifestations. In this paper, we present the clinical and genetic characteristics of 3 WS patients from 3 unrelated Turkish families. Clinical characteristics of the patients and the age of onset of symptoms were quite different in each pedigree. The first two cases developed all symptoms of the disease in their first decade of life. The heterozygous father of case 2 was symptomatic with bilateral deafness. The first ocular finding of one patient (patient 3) was bilateral cataract which was accompanying DM as a first feature of the syndrome. In this patient’s family, there were two members with features suggestive of WS. Previously known homozygous mutations, c.460+1G>A in intron 4 and c.1885C>T in exon 8, were identified in these cases. A novel homozygous c.2534T>A mutation was also detected in the exon 8 of WFS1 gene. Because of the rarity and heterogeneity of WS, detection of specific and nonspecific clinical signs including ocular findings and family history in non-autoimmune, insulinopenic diabetes cases should lead to a tentative diagnosis of WS. Genetic testing is required to confirm the diagnosis.

Keywords: Wolfram syndrome, WFS1 gene, genetic testing

Gamze Çelmeli, Doga Türkkahraman, Yusuf Çürek, Jayne Houghton, Sema Akçurin, Iffet Bircan. Clinical and Molecular Genetic Analysis in Three Children with Wolfram Syndrome: A Novel WFS1 Mutation (c.2534T>A). J Clin Res Pediatr Endocrinol. 2017; 9(1): 80-84
Manuscript Language: English
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