Stark, Klaus and Esslinger, Ulrike B. and Reinhard, Wibke and Petrov, George and Winkler, Thomas and Komajda, Michel and Isnard, Richard and Charron, Philippe and Villard, Eric and Cambien, Francois and Tiret, Laurence and Aumont, Marie-Claude and Dubourg, Olivier and Trochu, Jean-Noel and Fauchier, Laurent and DeGroote, Pascal and Richter, Anette and Maisch, Bernhard and Wichter, Thomas and Zollbrecht, Christa and Grassl, Martina and Schunkert, Heribert and Linsel-Nitschke, Patrick and Erdmann, Jeanette and Baumert, Jens and Illig, Thomas and Klopp, Norman and Wichmann, H. -Erich and Meisinger, Christa and Koenig, Wolfgang and Lichtner, Peter and Meitinger, Thomas and Schillert, Arne and Koenig, Inke R. and Hetzer, Roland and Heid, Iris M. and Regitz-Zagrosek, Vera and Hengstenberg, Christian (2010) Genetic Association Study Identifies HSPB7 as a Risk Gene for Idiopathic Dilated Cardiomyopathy. PLOS GENETICS, 6 (10): e1001167. ISSN 1553-7404,
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Dilated cardiomyopathy (DCM) is a structural heart disease with strong genetic background. Monogenic forms of DCM are observed in families with mutations located mostly in genes encoding structural and sarcomeric proteins. However, strong evidence suggests that genetic factors also affect the susceptibility to idiopathic DCM. To identify risk alleles for non-familial forms of DCM, we carried out a case-control association study, genotyping 664 DCM cases and 1,874 population-based healthy controls from Germany using a 50K human cardiovascular disease bead chip covering more than 2,000 genes pre-selected for cardiovascular relevance. After quality control, 30,920 single nucleotide polymorphisms (SNP) were tested for association with the disease by logistic regression adjusted for gender, and results were genomic-control corrected. The analysis revealed a significant association between a SNP in HSPB7 gene (rs1739843, minor allele frequency 39%) and idiopathic DCM (p = 1.06x10(-6), OR = 0.67 [95% CI 0.57-0.79] for the minor allele T). Three more SNPs showed p<2.21x10(-5). De novo genotyping of these four SNPs was done in three independent case-control studies of idiopathic DCM. Association between SNP rs1739843 and DCM was significant in all replication samples: Germany (n = 564, n = 981 controls, p = 2.07x10(-3), OR = 0.79 [95% CI 0.67-0.92]), France 1 (n = 433 cases, n = 395 controls, p = 3.73x10(-3), OR = 0.74 [95% CI 0.60-0.91]), and France 2 (n = 249 cases, n = 380 controls, p = 2.26x10(-4), OR = 0.63 [95% CI 0.50-0.81]). The combined analysis of all four studies including a total of n = 1,910 cases and n = 3,630 controls showed highly significant evidence for association between rs1739843 and idiopathic DCM (p = 5.28x10(-13), OR = 0.72 [95% CI 0.65-0.78]). None of the other three SNPs showed significant results in the replication stage. This finding of the HSPB7 gene from a genetic search for idiopathic DCM using a large SNP panel underscores the influence of common polymorphisms on DCM susceptibility.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | WHOLE-GENOME ASSOCIATION; HEAT-SHOCK PROTEINS; X-LINKED GENE; HYPERTROPHIC CARDIOMYOPATHY; BINDING-PROTEIN; MUTATIONS; FAILURE; POLYMORPHISM; SUSCEPTIBILITY; PHOSPHOLAMBAN; |
| Subjects: | 600 Technology > 610 Medical sciences Medicine |
| Divisions: | Medicine > Lehrstuhl für Innere Medizin II Medicine > Institut für Epidemiologie und Präventivmedizin |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 09 Jul 2020 13:13 |
| Last Modified: | 09 Jul 2020 13:13 |
| URI: | https://pred.uni-regensburg.de/id/eprint/24133 |
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