Open Access

Application of next‑generation sequencing to identify mitochondrial mutations: Study on m.7511T>C in patients with hearing loss

  • Authors:
    • Urszula Lechowicz
    • Agnieszka Pollak
    • Agnieszka Frączak
    • Małgorzata Rydzanicz
    • Piotr Stawiński
    • Artur Lorens
    • Piotr H. Skarżyński
    • Henryk Skarżyński
    • Rafał Płoski
    • Monika Ołdak
  • View Affiliations

  • Published online on: November 15, 2017     https://doi.org/10.3892/mmr.2017.8064
  • Pages: 1782-1790
  • Copyright: © Lechowicz et al. This is an open access article distributed under the terms of Creative Commons Attribution License.

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Abstract

Interruptions in the activity of mitochondria induced by mutations in the mitochondrial genome (mtDNA) can be the source of numerous diseases including hearing loss (HL). One of the mitochondrial variants responsible for HL is the m.7511T>C mutation located in the mitochondrially encoded tRNA serine 1 (UCN) gene. Next‑generation sequencing was used to search for the HL mutations in the whole mtDNA of 2 patients with maternal inheritance and real time‑polymerase chain reaction was applied for population screening of the m.7511T>C mutation in a group of 1,644 patients with HL. Sequencing of the whole mtDNA in 2 probands revealed a homoplasmic m.7511T>C mutation. Inheritance of the m.7511T>C mutation has been confirmed in examined matrilineal relatives in both families. The mean age of HL onset was 14.1 years old with the mean degree of HL equaling 74.8 dB. A large‑scale search for the m.7511T>C mutation among the patients with HL established the frequency of the m.7511T>C mutation at 0.12% among Polish patients with HL. In conclusion, this first report on central European patients harboring the m.7511T>C mutation reveals that the m.7511T>C may be important when diagnosing patients with maternally inherited HL.
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January-2018
Volume 17 Issue 1

Print ISSN: 1791-2997
Online ISSN:1791-3004

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Spandidos Publications style
Lechowicz U, Pollak A, Frączak A, Rydzanicz M, Stawiński P, Lorens A, Skarżyński PH, Skarżyński H, Płoski R, Ołdak M, Ołdak M, et al: Application of next‑generation sequencing to identify mitochondrial mutations: Study on m.7511T>C in patients with hearing loss. Mol Med Rep 17: 1782-1790, 2018
APA
Lechowicz, U., Pollak, A., Frączak, A., Rydzanicz, M., Stawiński, P., Lorens, A. ... Ołdak, M. (2018). Application of next‑generation sequencing to identify mitochondrial mutations: Study on m.7511T>C in patients with hearing loss. Molecular Medicine Reports, 17, 1782-1790. https://doi.org/10.3892/mmr.2017.8064
MLA
Lechowicz, U., Pollak, A., Frączak, A., Rydzanicz, M., Stawiński, P., Lorens, A., Skarżyński, P. H., Skarżyński, H., Płoski, R., Ołdak, M."Application of next‑generation sequencing to identify mitochondrial mutations: Study on m.7511T>C in patients with hearing loss". Molecular Medicine Reports 17.1 (2018): 1782-1790.
Chicago
Lechowicz, U., Pollak, A., Frączak, A., Rydzanicz, M., Stawiński, P., Lorens, A., Skarżyński, P. H., Skarżyński, H., Płoski, R., Ołdak, M."Application of next‑generation sequencing to identify mitochondrial mutations: Study on m.7511T>C in patients with hearing loss". Molecular Medicine Reports 17, no. 1 (2018): 1782-1790. https://doi.org/10.3892/mmr.2017.8064