Extension of variance components approach to incorporate temporal trends and longitudinal pedigree data analysis.
Genet Epidemiol
; 22(3): 221-32, 2002 Mar.
Article
em En
| MEDLINE
| ID: mdl-11921082
ABSTRACT
Here we present a method that permits one to evaluate genetic effects and to detect genetic linkages by using serial observations of quantitative traits in pedigrees. We developed a statistical method that incorporates longitudinal family data and genetic marker information into an estimating equations framework. With this approach, we can study changes in components over time that measure polygenic and major genetic variances as well as shared and individual-specific environmental effects. Our method provides a measure of heritability from analysis of longitudinal data. Results using longitudinal family data from the Center for Preventive Medicine (Nancy, France) are presented. The results of our analysis show that the apolipoprotein E locus has no effect on interindividual variability in systolic blood pressure. We found that the longitudinal measure of heritability of systolic blood pressure is 0.32.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Linhagem
/
Apolipoproteínas E
/
Pressão Sanguínea
/
Modelos Genéticos
Tipo de estudo:
Observational_studies
/
Prognostic_studies
/
Risk_factors_studies
Limite:
Humans
Idioma:
En
Revista:
Genet Epidemiol
Assunto da revista:
EPIDEMIOLOGIA
/
GENETICA MEDICA
Ano de publicação:
2002
Tipo de documento:
Article
País de afiliação:
Estados Unidos