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Article

Spectrum and frequencies of mutations in the MFN2 gene and its phenotypical expression in Czech hereditary motor and sensory neuropathy type II patients

  • Authors:
    • Dana Šafka Brožková
    • Jan Posádka
    • Petra Laššuthová
    • Radim Mazanec
    • Jana Haberlová
    • Dana Šišková
    • Iva Sakmaryová
    • Jana Neupauerová
    • Pavel Seeman
  • View Affiliations / Copyright

    Affiliations: DNA Laboratory, Department of Child Neurology, Charles University Second Medical School and University Hospital Motol, Prague 15006, Czech Republic, Department of Neurology, Charles University Second Medical School and University Hospital Motol, Prague 15006, Czech Republic, Department of Child Neurology, Thomayer University Hospital, Prague 14059, Czech Republic
  • Pages: 1779-1784
    |
    Published online on: October 14, 2013
       https://doi.org/10.3892/mmr.2013.1730
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Abstract

The axonal type of Charcot‑Marie‑Tooth (CMT) disorders is genetically heterogeneous, therefore the causal mutation is unlikely to be observed, even in clinically well characterized patients. Mitofusin‑2 (MFN2) gene mutations are the most frequent cause of axonal CMT disorders in a number of populations. There are two phenotypes; early onset, which is severe and late onset, which is a milder phenotype. A cohort of 139 unrelated Czech patients with axonal neuropathy was selected for sequencing and multiplex ligation-dependent probe amplification analysis (MLPA) testing of the MFN2 gene. A total of 11 MFN2 mutations were detected, with eight pathogenic mutations and three potentially rare benign polymorphisms. MLPA testing in 64 unrelated patients did not detect any exon duplication or deletion. The frequency of the pathogenic mutations detected in Czech hereditary motor and sensory neuropathy type II (HMSN II) patients was 7.2%. Early onset was more frequent among pathogenic mutation cases. Therefore we propose to examine the MFN2 gene mainly in patients with early and severe axonal CMT.
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Copy and paste a formatted citation
Spandidos Publications style
Brožková DŠ, Posádka J, Laššuthová P, Mazanec R, Haberlová J, Šišková D, Sakmaryová I, Neupauerová J and Seeman P: Spectrum and frequencies of mutations in the MFN2 gene and its phenotypical expression in Czech hereditary motor and sensory neuropathy type II patients. Mol Med Rep 8: 1779-1784, 2013.
APA
Brožková, D.Š., Posádka, J., Laššuthová, P., Mazanec, R., Haberlová, J., Šišková, D. ... Seeman, P. (2013). Spectrum and frequencies of mutations in the MFN2 gene and its phenotypical expression in Czech hereditary motor and sensory neuropathy type II patients. Molecular Medicine Reports, 8, 1779-1784. https://doi.org/10.3892/mmr.2013.1730
MLA
Brožková, D. Š., Posádka, J., Laššuthová, P., Mazanec, R., Haberlová, J., Šišková, D., Sakmaryová, I., Neupauerová, J., Seeman, P."Spectrum and frequencies of mutations in the MFN2 gene and its phenotypical expression in Czech hereditary motor and sensory neuropathy type II patients". Molecular Medicine Reports 8.6 (2013): 1779-1784.
Chicago
Brožková, D. Š., Posádka, J., Laššuthová, P., Mazanec, R., Haberlová, J., Šišková, D., Sakmaryová, I., Neupauerová, J., Seeman, P."Spectrum and frequencies of mutations in the MFN2 gene and its phenotypical expression in Czech hereditary motor and sensory neuropathy type II patients". Molecular Medicine Reports 8, no. 6 (2013): 1779-1784. https://doi.org/10.3892/mmr.2013.1730
Copy and paste a formatted citation
x
Spandidos Publications style
Brožková DŠ, Posádka J, Laššuthová P, Mazanec R, Haberlová J, Šišková D, Sakmaryová I, Neupauerová J and Seeman P: Spectrum and frequencies of mutations in the MFN2 gene and its phenotypical expression in Czech hereditary motor and sensory neuropathy type II patients. Mol Med Rep 8: 1779-1784, 2013.
APA
Brožková, D.Š., Posádka, J., Laššuthová, P., Mazanec, R., Haberlová, J., Šišková, D. ... Seeman, P. (2013). Spectrum and frequencies of mutations in the MFN2 gene and its phenotypical expression in Czech hereditary motor and sensory neuropathy type II patients. Molecular Medicine Reports, 8, 1779-1784. https://doi.org/10.3892/mmr.2013.1730
MLA
Brožková, D. Š., Posádka, J., Laššuthová, P., Mazanec, R., Haberlová, J., Šišková, D., Sakmaryová, I., Neupauerová, J., Seeman, P."Spectrum and frequencies of mutations in the MFN2 gene and its phenotypical expression in Czech hereditary motor and sensory neuropathy type II patients". Molecular Medicine Reports 8.6 (2013): 1779-1784.
Chicago
Brožková, D. Š., Posádka, J., Laššuthová, P., Mazanec, R., Haberlová, J., Šišková, D., Sakmaryová, I., Neupauerová, J., Seeman, P."Spectrum and frequencies of mutations in the MFN2 gene and its phenotypical expression in Czech hereditary motor and sensory neuropathy type II patients". Molecular Medicine Reports 8, no. 6 (2013): 1779-1784. https://doi.org/10.3892/mmr.2013.1730
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