Κυριακή 31 Δεκεμβρίου 2017

A novel pathogenic variant c.975G>A (p.Trp325*) in the POU3F4 gene in Yakut family (Eastern Siberia, Russia) with the X-linked deafness-2 (DFNX2).

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A novel pathogenic variant c.975G>A (p.Trp325*) in the POU3F4 gene in Yakut family (Eastern Siberia, Russia) with the X-linked deafness-2 (DFNX2).

Int J Pediatr Otorhinolaryngol. 2018 Jan;104:94-97

Authors: Barashkov NA, Klarov LA, Teryutin FM, Solovyev AV, Pshennikova VG, Konnikova EE, Romanov GP, Tobokhov AV, Morozov IV, Bondar AA, Posukh OL, Dzhemileva LU, Tomsky MI, Khusnutdinova EK, Fedorova SA

Abstract
Here, we report a novel hemizygous transition c.975G>A (p.Trp325*) in POU3F4 gene (Xq21) found in two deaf half-brothers from one Yakut family (Eastern Siberia, Russia) with identical inner ear abnormalities ("corkscrew" cochlea with an absence of modiolus) specific to X-linked deafness-2 (DFNX2). Comprehensive clinical evaluation (CT and MR-imaging, audiological and stabilometric examinations) of available members of this family revealed both already known (mixed progressive hearing loss) and additional (enlargement of semicircular canals and postural disorders) clinical DFNX2 features in affected males with c.975G>A (p.Trp325*). Moreover, mild enlargement of semicircular canals, postural abnormalities and different types of hearing thresholds were found in female carrier of this POU3F4-variant.

PMID: 29287890 [PubMed - in process]



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