Heritability and linkage study on heart rates in a Mongolian population
Experimental & Molecular Medicine
;
: 558-564, 2008.
Artigo
em Inglês
| WPRIM
| ID: wpr-84646
ABSTRACT
Elevated heart rate has been proposed as an independent risk factor for cardiovascular diseases, but their interrelationships are not well understood. In this study, we performed a genome-wide linkage scan in 1,026 individuals (mean age 30.6 years, 54.5% women) from 73 extended families of Mongolia and determined quantitative trait loci that influence heart rate. The DNA samples were genotyped using deCODE 1,039 microsatellite markers for 3 cM density genome-wide linkage scan. Correlation analysis was carried out to evaluate the correlation of the covariates and the heart rate. T-tests of the heart rate were also performed on sex, smoking and alcohol intake. Consequently, this model was used in a nonparametric genome-wide linkage analysis using variance component model to create a multipoint logarithm of odds (LOD) score and a corresponding P value. In the adjusted model, the heritability of heart rate was estimated as 0.32 (P<.0001) and a maximum multipoint LOD score of 2.03 was observed in 77 cM region at chromosome 18. The second largest LOD score of 1.52 was seen on chromosome 5 at 216 cM. Genes located on the specified locations in chromosomes 5 and 18 may be involved in the regulation of heart rate.
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Assunto principal:
Genoma Humano
/
Mapeamento Cromossômico
/
Locos de Características Quantitativas
/
Estudo de Associação Genômica Ampla
/
Genética Populacional
/
Frequência Cardíaca
/
Ligação Genética
/
Mongólia
Tipo de estudo:
Estudo prognóstico
/
Fatores de risco
Limite:
Adolescente
/
Adulto
/
Feminino
/
Humanos
/
Masculino
País/Região como assunto:
Ásia
Idioma:
Inglês
Revista:
Experimental & Molecular Medicine
Ano de publicação:
2008
Tipo de documento:
Artigo
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