A Genome-Wide Association Study of Idiopathic Dilated Cardiomyopathy in African Americans.

ABSTRACT: Idiopathic dilated cardiomyopathy (IDC) is the most common form of non-ischemic chronic heart failure. Despite the higher prevalence of IDC in African Americans, the genetics of IDC have been relatively understudied in this ethnic group. We performed a genome-wide association study to identify susceptibility genes for IDC in African Americans recruited from five sites in the U.S. (662 unrelated cases and 1167 controls). The heritability of IDC was calculated to be 33% (95% confidence interval: 19-47%; p = 6.4 × 10^-7). We detected association of a variant in a novel intronic locus in the CACNB4 gene meeting genome-wide levels of significance (p = 4.1 × 10^-8). The CACNB4 gene encodes a calcium channel subunit expressed in the heart that is im

SUBMITTER: Xu H 

PROVIDER: S-EPMC5872085 | biostudies-literature | 2018 Feb

REPOSITORIES: biostudies-literature