A combined linkage and exome sequencing analysis for electrocardiogram parameters in the erasmus rucphen family study
Electrocardiogram (ECG) measurements play a key role in the diagnosis and prediction of cardiac arrhythmias and sudden cardiac death. ECG parameters, such as the PR, QRS, and QT intervals, are known to be heritable and genome-wide association studies of these phenotypes have been successful in ident...
| Główni autorzy: | , , , , , , , , , , , , , , , |
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| Format: | Journal article |
| Język: | English |
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Frontiers Media SA
2016
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| _version_ | 1826300771421913088 |
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| author | Silva, C Zorkoltseva, I Amin, N Demirkan, A Van Leeuwen, E Kors, J Van Den Berg, M Stricker, B Uitterlinden, A Kirichenko, A Witteman, J Willemsen, R Oostra, B Axenovich, T Van Duijn, C Isaacs, A |
| author_facet | Silva, C Zorkoltseva, I Amin, N Demirkan, A Van Leeuwen, E Kors, J Van Den Berg, M Stricker, B Uitterlinden, A Kirichenko, A Witteman, J Willemsen, R Oostra, B Axenovich, T Van Duijn, C Isaacs, A |
| author_sort | Silva, C |
| collection | OXFORD |
| description | Electrocardiogram (ECG) measurements play a key role in the diagnosis and prediction of cardiac arrhythmias and sudden cardiac death. ECG parameters, such as the PR, QRS, and QT intervals, are known to be heritable and genome-wide association studies of these phenotypes have been successful in identifying common variants; however, a large proportion of the genetic variability of these traits remains to be elucidated. The aim of this study was to discover loci potentially harboring rare variants utilizing variance component linkage analysis in 1547 individuals from a large family-based study, the Erasmus Rucphen Family Study (ERF). Linked regions were further explored using exome sequencing. Five suggestive linkage peaks were identified: two for QT interval (1q24, LOD = 2.63; 2q34, LOD = 2.05), one for QRS interval (1p35, LOD = 2.52) and two for PR interval (9p22, LOD = 2.20; 14q11, LOD = 2.29). Fine-mapping using exome sequence data identified a C > G missense variant (c.713C > G, p.Ser238Cys) in the FCRL2 gene associated with QT (rs74608430; P = 2.8 × 10-4, minor allele frequency = 0.019). Heritability analysis demonstrated that the SNP explained 2.42% of the trait's genetic variability in ERF (P = 0.02). Pathway analysis suggested that the gene is involved in cytosolic Ca2+ levels (P = 3.3 × 10-3) and AMPK stimulated fatty acid oxidation in muscle (P = 4.1 × 10-3). Look-ups in bioinformatics resources showed that expression of FCRL2 is associated with ARHGAP24 and SETBP1 expression. This finding was not replicated in the Rotterdam study. Combining the bioinformatics information with the association and linkage analyses, FCRL2 emerges as a strong candidate gene for QT interval. |
| first_indexed | 2024-03-07T05:22:14Z |
| format | Journal article |
| id | oxford-uuid:df528812-0b24-44d7-bbe1-2bcabfbd1f91 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T05:22:14Z |
| publishDate | 2016 |
| publisher | Frontiers Media SA |
| record_format | dspace |
| spelling | oxford-uuid:df528812-0b24-44d7-bbe1-2bcabfbd1f912022-03-27T09:38:35ZA combined linkage and exome sequencing analysis for electrocardiogram parameters in the erasmus rucphen family studyJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:df528812-0b24-44d7-bbe1-2bcabfbd1f91EnglishSymplectic Elements at OxfordFrontiers Media SA2016Silva, CZorkoltseva, IAmin, NDemirkan, AVan Leeuwen, EKors, JVan Den Berg, MStricker, BUitterlinden, AKirichenko, AWitteman, JWillemsen, ROostra, BAxenovich, TVan Duijn, CIsaacs, AElectrocardiogram (ECG) measurements play a key role in the diagnosis and prediction of cardiac arrhythmias and sudden cardiac death. ECG parameters, such as the PR, QRS, and QT intervals, are known to be heritable and genome-wide association studies of these phenotypes have been successful in identifying common variants; however, a large proportion of the genetic variability of these traits remains to be elucidated. The aim of this study was to discover loci potentially harboring rare variants utilizing variance component linkage analysis in 1547 individuals from a large family-based study, the Erasmus Rucphen Family Study (ERF). Linked regions were further explored using exome sequencing. Five suggestive linkage peaks were identified: two for QT interval (1q24, LOD = 2.63; 2q34, LOD = 2.05), one for QRS interval (1p35, LOD = 2.52) and two for PR interval (9p22, LOD = 2.20; 14q11, LOD = 2.29). Fine-mapping using exome sequence data identified a C > G missense variant (c.713C > G, p.Ser238Cys) in the FCRL2 gene associated with QT (rs74608430; P = 2.8 × 10-4, minor allele frequency = 0.019). Heritability analysis demonstrated that the SNP explained 2.42% of the trait's genetic variability in ERF (P = 0.02). Pathway analysis suggested that the gene is involved in cytosolic Ca2+ levels (P = 3.3 × 10-3) and AMPK stimulated fatty acid oxidation in muscle (P = 4.1 × 10-3). Look-ups in bioinformatics resources showed that expression of FCRL2 is associated with ARHGAP24 and SETBP1 expression. This finding was not replicated in the Rotterdam study. Combining the bioinformatics information with the association and linkage analyses, FCRL2 emerges as a strong candidate gene for QT interval. |
| spellingShingle | Silva, C Zorkoltseva, I Amin, N Demirkan, A Van Leeuwen, E Kors, J Van Den Berg, M Stricker, B Uitterlinden, A Kirichenko, A Witteman, J Willemsen, R Oostra, B Axenovich, T Van Duijn, C Isaacs, A A combined linkage and exome sequencing analysis for electrocardiogram parameters in the erasmus rucphen family study |
| title | A combined linkage and exome sequencing analysis for electrocardiogram parameters in the erasmus rucphen family study |
| title_full | A combined linkage and exome sequencing analysis for electrocardiogram parameters in the erasmus rucphen family study |
| title_fullStr | A combined linkage and exome sequencing analysis for electrocardiogram parameters in the erasmus rucphen family study |
| title_full_unstemmed | A combined linkage and exome sequencing analysis for electrocardiogram parameters in the erasmus rucphen family study |
| title_short | A combined linkage and exome sequencing analysis for electrocardiogram parameters in the erasmus rucphen family study |
| title_sort | combined linkage and exome sequencing analysis for electrocardiogram parameters in the erasmus rucphen family study |
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