Πέμπτη 11 Μαΐου 2017

Novel compound heterozygous MYO7A mutations in Moroccan families with autosomal recessive non-syndromic hearing loss.

http:--journals.plos.org-plosone-resourc Related Articles

Novel compound heterozygous MYO7A mutations in Moroccan families with autosomal recessive non-syndromic hearing loss.

PLoS One. 2017;12(5):e0176516

Authors: Bakhchane A, Charif M, Bousfiha A, Boulouiz R, Nahili H, Rouba H, Charoute H, Lenaers G, Barakat A

Abstract
The MYO7A gene encodes a protein belonging to the unconventional myosin super family. Mutations within MYO7A can lead to either non syndromic hearing loss or to the Usher syndrome type 1B (USH1B). Here, we report the results of genetic analyses performed on Moroccan families with autosomal recessive non syndromic hearing loss that identified two families with compound heterozygous MYO7A mutations. Five mutations (c.6025delG, c.6229T>A, c.3500T>A, c.5617C>T and c.4487C>A) were identified in these families, the latter presenting two differently affected branches. Multiple bioinformatics programs and molecular modelling predicted the pathogenic effect of these mutations. In conclusion, the absence of vestibular and retinal symptom in the affected patients suggests that these families have the isolated non-syndromic hearing loss DFNB2 (nonsyndromic autosomal recessive hearing loss) presentation, instead of USH1B.

PMID: 28472130 [PubMed - in process]



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