Home Bratislava Medical Journal 2019 Bratislava Medical Journal Vol.120, No.1, p.46–51, 2019

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Published Monthly, in English
Founded: 1919
ISSN 0006-9248
(E)ISSN 1336-0345
 

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Bratislava Medical Journal Vol.120, No.1, p.46–51, 2019

Title: Targeted next-generation sequencing in Slovak cardiomyopathy patients
Author: E. Nagyova, J. Radvanszky, M. Hyblova, V. Simovicova, E. Goncalvesova, F. W. Asselbergs, L. Kadasi, T. Szemes, G. Minarik

Abstract: OBJECTIVES: For the first time we used targeted next-generation sequencing to detect candidate pathogenic variants in Slovak cardiomyopathy patients.
BACKGROUND: Targeted next-generation sequencing is considered to be the best practice in genetic diagnostics of cardiomyopathies. However, in Slovakia, with high cardiomyopathies prevalence of 1/440, the current diagnostic tests are still based on Sanger sequencing of a few genes. Consequently, little is known about the exact contribution of pathogenic variants in known cardiomyopathy genes in Slovak patients.
METHODS: We used a panel of 46 known cardiomyopathy-associated genes to detect genetic variants in 16 Slovak cardiomyopathy patients (6 dilated, 8 hypertrophic, 2 non-compaction subtypes).
RESULTS: We identified candidate pathogenic variants in 11 of 16 patients (69 %). Genes with higher count of candidate pathogenic variants were MYBPC3, MYH and TTN, each with 3 different variants. Seven variants ACTC1 (c.329C>T), ANKRD1 (c.683G>T), MYH7 (c.1025C>T), PKP2 (c.2003delA), TTN (c.51655C>T, c.84841G>T, c.101874_101881delAGAATTTG) have been detected for the first time and might represent Slovak-specific genetic cause.
CONCLUSIONS: We have performed genetic testing of previously untested Slovak cardiomyopathy patients using next-generation sequencing cardiomyopathy gene panel. Given the high percentage of candidate pathogenic variants it should be recommended to implement this method into routine genetic diagnostic practice in Slovakia (Tab. 4, Ref. 39).

Keywords: cardiomyopathy, Slovak patients, next-generation sequencing, gene panel, genetic testing
Published online: 22-Jan-2019
Year: 2019, Volume: 120, Issue: 1 Page From: 46, Page To: 51
doi:10.4149/BLL_2019_007


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