Phenotypic and molecular assessment of seven patients with 6p25 deletion syndrome: relevance to ocular dysgenesis and hearing impairment.

Détails

Ressource 1Télécharger: BIB_936616F37C80.P001.pdf (543.27 [Ko])
Etat: Serval
Version: de l'auteur
ID Serval
serval:BIB_936616F37C80
Type
Article: article d'un périodique ou d'un magazine.
Sous-type
Etude de cas (case report): rapporte une observation et la commente brièvement.
Collection
Publications
Titre
Phenotypic and molecular assessment of seven patients with 6p25 deletion syndrome: relevance to ocular dysgenesis and hearing impairment.
Périodique
BMC medical genetics
Auteur(s)
Gould D.B., Jaafar M.S., Addison M.K., Munier F., Ritch R., MacDonald I.M., Walter M.A.
ISSN
1471-2350[electronic]
Statut éditorial
Publié
Date de publication
2004
Volume
5
Pages
17
Langue
anglais
Notes
Publication types: Case Reports ; Journal Article ; Research Support, Non-U.S. Gov't ; Review - Publication Status: epublish
Résumé
BACKGROUND: Thirty-nine patients have been described with deletions involving chromosome 6p25. However, relatively few of these deletions have had molecular characterization. Common phenotypes of 6p25 deletion syndrome patients include hydrocephalus, hearing loss, and ocular, craniofacial, skeletal, cardiac, and renal malformations. Molecular characterization of deletions can identify genes that are responsible for these phenotypes. METHODS: We report the clinical phenotype of seven patients with terminal deletions of chromosome 6p25 and compare them to previously reported patients. Molecular characterization of the deletions was performed using polymorphic marker analysis to determine the extents of the deletions in these seven 6p25 deletion syndrome patients. RESULTS: Our results, and previous data, show that ocular dysgenesis and hearing impairment are the two most highly penetrant phenotypes of the 6p25 deletion syndrome. While deletion of the forkhead box C1 gene (FOXC1) probably underlies the ocular dysgenesis, no gene in this region is known to be involved in hearing impairment. CONCLUSIONS: Ocular dysgenesis and hearing impairment are the two most common phenotypes of 6p25 deletion syndrome. We conclude that a locus for dominant hearing loss is present at 6p25 and that this locus is restricted to a region distal to D6S1617. Molecular characterization of more 6p25 deletion patients will aid in refinement of this locus and the identification of a gene involved in dominant hearing loss.
Mots-clé
Abnormalities, Multiple, Chromosome Deletion, Chromosomes, Human, Pair 2, Chromosomes, Human, Pair 4, Chromosomes, Human, Pair 6, Chromosomes, Human, Pair 8, Eye Abnormalities, Female, Genetic Predisposition to Disease, Hearing Loss, Humans, Male, Microsatellite Repeats, Phenotype, Syndrome, Translocation, Genetic
Pubmed
Open Access
Oui
Création de la notice
28/01/2008 13:54
Dernière modification de la notice
08/05/2019 22:09
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