Document Detail


Genome-wide profiling of blood pressure in adults and children.
MedLine Citation:
PMID:  22203742     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Hypertension is an important determinant of cardiovascular morbidity and mortality and has a substantial heritability, which is likely of polygenic origin. The aim of this study was to assess to what extent multiple common genetic variants contribute to blood pressure regulation in both adults and children and to assess overlap in variants between different age groups, using genome-wide profiling. Single nucleotide polymorphism sets were defined based on a meta-analysis of genome-wide association studies on systolic blood pressure and diastolic blood pressure performed by the Cohort for Heart and Aging Research in Genome Epidemiology (n=29 136), using different P value thresholds for selecting single nucleotide polymorphisms. Subsequently, genetic risk scores for systolic blood pressure and diastolic blood pressure were calculated in an independent adult population (n=2072) and a child population (n=1034). The explained variance of the genetic risk scores was evaluated using linear regression models, including sex, age, and body mass index. Genetic risk scores, including also many nongenome-wide significant single nucleotide polymorphisms, explained more of the variance than scores based only on very significant single nucleotide polymorphisms in adults and children. Genetic risk scores significantly explained ≤1.2% (P=9.6*10(-8)) of the variance in adult systolic blood pressure and 0.8% (P=0.004) in children. For diastolic blood pressure, the variance explained was similar in adults and children (1.7% [P=8.9*10(-10)] and 1.4% [P=3.3*10(-5)], respectively). These findings suggest the presence of many genetic loci with small effects on blood pressure regulation both in adults and children, indicating also a (partly) common polygenic regulation of blood pressure throughout different periods of life.
Authors:
Hendrik R Taal; Germaine C Verwoert; Ayse Demirkan; A Cecile J W Janssens; Kenneth Rice; Georg Ehret; Albert V Smith; Ben F J Verhaaren; Jacqueline C M Witteman; Albert Hofman; Meike W Vernooij; Andre G Uitterlinden; Fernando Rivadeneira; M Arfan Ikram; Daniel Levy; Albert J van der Heijden; ; Vincent W V Jaddoe; Cornelia M van Duijn
Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, Non-U.S. Gov't     Date:  2011-12-27
Journal Detail:
Title:  Hypertension     Volume:  59     ISSN:  1524-4563     ISO Abbreviation:  Hypertension     Publication Date:  2012 Feb 
Date Detail:
Created Date:  2012-01-25     Completed Date:  2012-04-20     Revised Date:  2013-06-26    
Medline Journal Info:
Nlm Unique ID:  7906255     Medline TA:  Hypertension     Country:  United States    
Other Details:
Languages:  eng     Pagination:  241-7     Citation Subset:  IM    
Affiliation:
The Generation R Study Group (Ae-006), Erasmus Medical Center, PO Box 2040, 3000 CA Rotterdam, The Netherlands.
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MeSH Terms
Descriptor/Qualifier:
Aging / genetics*,  physiology
Blood Pressure / genetics*,  physiology
Child
Child, Preschool
Female
Gene Expression Profiling*
Genetic Predisposition to Disease / genetics
Genome-Wide Association Study*
Humans
Hypertension / genetics,  physiopathology
Linear Models
Male
Middle Aged
Netherlands
Polymorphism, Single Nucleotide / genetics,  physiology
Risk Factors
Grant Support
ID/Acronym/Agency:
N01 HC025195/HC/NHLBI NIH HHS
Comments/Corrections

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