Objectives: a) To describe a very extended inbred pedigree with Wolfram syndrome (WS) (OMIM #222300); b) to report both the clinical picture and evolution in this large family and a peculiar mutation which has been reported hitherto only in Italian patients. Design: The five-generation pedigree from Sicily was reconstructed through a proband with all the main manifestation - WS, born to a couple of healthy consanguini-;us parents. DNA examination was performed in both patients and healthy family members. Results: In all seven patients we found a homozygous 16-bp deletion in exon 8 of the WFS1 gene that introduces a stop codon in position 454. Conclusions: This inbred pedigree is the largest with WS described in the literature. Its analysis definitively confirms the view of autosomal recessive inheritance in WS. The 16-bp deletion appears to be a relatively frequent mutation only in Italian patients. Before examining the entire coding region of the WSF1 gene a preliminary screening for the 16-bp deletion in exon 8 might be suggested when a new Italian case of WS is investigated.

Clinical picture,evolution and peculiar molecular findings in a very large pedegree with Wolfram syndrome

LOMBARDO, Fortunato;ARRIGO, Teresa;VALENZISE, Mariella;MESSINA, Maria Francesca;SALZANO, Giuseppina;BARBERI, Ignazio;DE LUCA, Filippo
2005-01-01

Abstract

Objectives: a) To describe a very extended inbred pedigree with Wolfram syndrome (WS) (OMIM #222300); b) to report both the clinical picture and evolution in this large family and a peculiar mutation which has been reported hitherto only in Italian patients. Design: The five-generation pedigree from Sicily was reconstructed through a proband with all the main manifestation - WS, born to a couple of healthy consanguini-;us parents. DNA examination was performed in both patients and healthy family members. Results: In all seven patients we found a homozygous 16-bp deletion in exon 8 of the WFS1 gene that introduces a stop codon in position 454. Conclusions: This inbred pedigree is the largest with WS described in the literature. Its analysis definitively confirms the view of autosomal recessive inheritance in WS. The 16-bp deletion appears to be a relatively frequent mutation only in Italian patients. Before examining the entire coding region of the WSF1 gene a preliminary screening for the 16-bp deletion in exon 8 might be suggested when a new Italian case of WS is investigated.
2005
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11570/1432458
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