학술논문
GWAS of QRS duration identifies new loci specific to Hispanic/Latino populations.
Document Type
article
Author
Brenton R Swenson; Tin Louie; Henry J Lin; Raúl Méndez-Giráldez; Jennifer E Below; Cathy C Laurie; Kathleen F Kerr; Heather Highland; Timothy A Thornton; Kelli K Ryckman; Charles Kooperberg; Elsayed Z Soliman; Amanda A Seyerle; Xiuqing Guo; Kent D Taylor; Jie Yao; Susan R Heckbert; Dawood Darbar; Lauren E Petty; Barbara McKnight; Susan Cheng; Natalie A Bello; Eric A Whitsel; Craig L Hanis; Mike A Nalls; Daniel S Evans; Jerome I Rotter; Tamar Sofer; Christy L Avery; Nona Sotoodehnia
Source
PLoS ONE, Vol 14, Iss 6, p e0217796 (2019)
Subject
Language
English
ISSN
1932-6203
Abstract
BackgroundThe electrocardiographically quantified QRS duration measures ventricular depolarization and conduction. QRS prolongation has been associated with poor heart failure prognosis and cardiovascular mortality, including sudden death. While previous genome-wide association studies (GWAS) have identified 32 QRS SNPs across 26 loci among European, African, and Asian-descent populations, the genetics of QRS among Hispanics/Latinos has not been previously explored.MethodsWe performed a GWAS of QRS duration among Hispanic/Latino ancestry populations (n = 15,124) from four studies using 1000 Genomes imputed genotype data (adjusted for age, sex, global ancestry, clinical and study-specific covariates). Study-specific results were combined using fixed-effects, inverse variance-weighted meta-analysis.ResultsWe identified six loci associated with QRS (PConclusionsOur QRS duration GWAS, the first in Hispanic/Latino populations, identified two new loci, underscoring the utility of extending large scale genomic studies to currently under-examined populations.