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Whole-Genome Sequencing Improves the Diagnosis of DFNB1 Monoallelic Patients.


ABSTRACT: Hearing loss is the most common sensory defect, due in most cases to a genetic origin. Variants in the GJB2 gene are responsible for up to 30% of non-syndromic hearing loss. Today, several deafness genotypes remain incomplete, confronting us with a diagnostic deadlock. In this study, whole-genome sequencing (WGS) was performed on 10 DFNB1 patients with incomplete genotypes. New variations on GJB2 were identified for four patients. Functional assays were realized to explore the function of one of them in the GJB2 promoter and confirm its impact on GJB2 expression. Thus, in this study WGS resolved patient genotypes, thus unlocking diagnosis. WGS afforded progress and bridged some gaps in our research.

SUBMITTER: Le Nabec A 

PROVIDER: S-EPMC8391926 | biostudies-literature |

REPOSITORIES: biostudies-literature

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