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G130v De Novo Mutation in an Iranian Pedigree With Nonsyndromic Hearing Loss Without Palmoplantar Keratoderma Publisher Pubmed



Babanejad M1 ; Zarandy MM2 ; Nikzat N1 ; Bazazzadegan N1 ; Arzhangi S1 ; Mohseni M1 ; Kahrizi K1 ; Najmabadi H1
Authors
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Authors Affiliations
  1. 1. Genetics Research Center, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran
  2. 2. Cochlear Implant Center and Department of Otorhinolaryngology, Amir Aalam Hospital, Tehran University of Medical Sciences, Tehran, Iran

Source: International Journal of Pediatric Otorhinolaryngology Published:2019


Abstract

Mutations in the GJB2 gene encoding connexin 26 (Cx26) cause autosomal recessive and rarely dominant nonsyndromic sensorineural hearing loss as well as asyndromic hearing impairment with skin problems. A dominant GJB2 mutation, c.389G > T (p.G130V), has been reported previously in association with hearing impairment and palmoplantar keratoderm. Here we report the first de novo G130V mutation of GJB2 gene in a sporadic case of hearing loss in a consanguineous Iranian family which is not associated with skin disorder. © 2019 Elsevier B.V.