Format

Send to:

Choose Destination
See comment in PubMed Commons below
Am J Med Genet A. 2013 Sep;161A(9):2226-33. doi: 10.1002/ajmg.a.36068. Epub 2013 Aug 5.

Molecular etiology of hearing impairment associated with nonsyndromic enlarged vestibular aqueduct in East China.

Author information

  • 1Department of Otorhinolaryngology-Head and Neck Surgery, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China.

Abstract

Recessive mutations in SLC26A4 and in rarer cases double heterozygous mutations of FOXI1/SLC26A4 and KCNJ10/SLC26A4 lead to hearing impairment associated with enlarged vestibular aqueduct (EVA), the most common inner ear malformation. In our large cohort study, we addressed several important questions to the molecular etiology of this disorder. The overall prevalence of SLC26A4 mutations in nonsyndromic childhood sensorineural hearing loss (11.2%, 37/330) were determined by sequencing of SLC26A4 in 330 hearing impaired children who did not undergo inner ear radiologic imaging prior to their genetic test. The penetrance of EVA in bi-allelic SLC26A4 mutation carriers (100%, 37/37) was determined by follow-up computed tomography scanning. Combined with the study of 140 additional probands diagnosed with nonsyndromic EVA, we characterized the mutation spectrum of SLC26A4 in East China, which consisted of 19 novel SLC26A4 mutations and differed from those reported in other regions of China.

Copyright © 2013 Wiley Periodicals, Inc.

KEYWORDS:

SLC26A4; enlargement of vestibular aqueduct; hearing impairment; mutation

PMID:
23918157
[PubMed - indexed for MEDLINE]
PubMed Commons home

PubMed Commons

0 comments
How to join PubMed Commons

    Supplemental Content

    Full text links

    Icon for John Wiley & Sons, Inc.
    Loading ...
    Write to the Help Desk