Πέμπτη 26 Απριλίου 2018

Identification of Pathogenic Genes of Nonsyndromic Hearing Loss in Uyghur Families Using Massively Parallel DNA Sequencing Technique.

Identification of Pathogenic Genes of Nonsyndromic Hearing Loss in Uyghur Families Using Massively Parallel DNA Sequencing Technique.

Dis Markers. 2018;2018:5298057

Authors: Chen Y, Lu Y, Kuyaxi P, Cheng J, Zhao J, Zhao Q, Musha P, Zhang H, Yuan H

Abstract
We aim to identify the mutations of deafness genes using massively parallel DNA sequencing in the 12 Uyghur families. SNPscan method was used to screen against the 124 sites in the common deafness genes in probands. Subjects with SNPscan negativity were subject to massively parallel DNA sequencing for the sequencing of 97 genes known to be responsible for hearing loss. Eight families (66.7%) showed biallelic mutations in probands, including MYO15A mutation (6892C>T in J02 family, 9514C>T/7894G>T in J07 family, and 9514C>T in J16 family), MYO7A mutation (1258A>T in J03 family), TMC1 mutation (773G>A in J09 family and 1247T>G/1312G>A in J11 family), and PCDH15 mutation (4658delT in J08 and J13 families). Six novel types of mutation were identified including 6892C>T, 9514C>T/7894G>T, and 9514C>T in MYO15A gene, 1258A>T in MYO7A, 773G>A in TMC1, and 4658delT in PCDH15. The ratio of nonsense mutation and frameshift mutation was comparatively high. All these indicated that the mutation types reported in this study were rare. In conclusion, rare deafness genes were identified in the Uyghur families using massively parallel DNA sequencing, part of which were suggested to be related to the pathogenesis of the disease.

PMID: 29692870 [PubMed - in process]



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