Open Access

Association between idiopathic hearing loss and mitochondrial DNA mutations: A study on 169 hearing-impaired subjects

  • Authors:
    • Valeria Guaran
    • Laura Astolfi
    • Alessandro Castiglione
    • Edi Simoni
    • Elena Olivetto
    • Marco Galasso
    • Patrizia Trevisi
    • Micol Busi
    • Stefano Volinia
    • Alessandro Martini
  • View Affiliations

  • Published online on: August 16, 2013     https://doi.org/10.3892/ijmm.2013.1470
  • Pages: 785-794
  • Copyright: © Guaran et al. This is an open access article distributed under the terms of Creative Commons Attribution License [CC BY_NC 3.0].

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Abstract

Mutations in mitochondrial DNA (mtDNA) have been shown to be an important cause of sensorineural hearing loss (SNHL). In this study, we performed a clinical and genetic analysis of 169 hearing-impaired patients and some of their relatives suffering from idiopathic SNHL, both familial and sporadic. The analysis of four fragments of their mtDNA identified several polymorphisms, the well known pathogenic mutation, A1555G, and some novel mutations in different genes, implying changes in the aminoacidic sequence. A novel sporadic mutation in 12S rRNA (MT-RNR1), not previously reported in the literature, was found in a case of possible aminoglycoside-induced progressive deafness.
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October 2013
Volume 32 Issue 4

Print ISSN: 1107-3756
Online ISSN:1791-244X

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Spandidos Publications style
Guaran V, Astolfi L, Castiglione A, Simoni E, Olivetto E, Galasso M, Trevisi P, Busi M, Volinia S, Martini A, Martini A, et al: Association between idiopathic hearing loss and mitochondrial DNA mutations: A study on 169 hearing-impaired subjects. Int J Mol Med 32: 785-794, 2013
APA
Guaran, V., Astolfi, L., Castiglione, A., Simoni, E., Olivetto, E., Galasso, M. ... Martini, A. (2013). Association between idiopathic hearing loss and mitochondrial DNA mutations: A study on 169 hearing-impaired subjects. International Journal of Molecular Medicine, 32, 785-794. https://doi.org/10.3892/ijmm.2013.1470
MLA
Guaran, V., Astolfi, L., Castiglione, A., Simoni, E., Olivetto, E., Galasso, M., Trevisi, P., Busi, M., Volinia, S., Martini, A."Association between idiopathic hearing loss and mitochondrial DNA mutations: A study on 169 hearing-impaired subjects". International Journal of Molecular Medicine 32.4 (2013): 785-794.
Chicago
Guaran, V., Astolfi, L., Castiglione, A., Simoni, E., Olivetto, E., Galasso, M., Trevisi, P., Busi, M., Volinia, S., Martini, A."Association between idiopathic hearing loss and mitochondrial DNA mutations: A study on 169 hearing-impaired subjects". International Journal of Molecular Medicine 32, no. 4 (2013): 785-794. https://doi.org/10.3892/ijmm.2013.1470