Genome-wide profiling of blood pressure in adults and children

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

Research output: Contribution to journalArticle

Abstract

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.

Original languageEnglish (US)
Pages (from-to)241-247
Number of pages7
JournalHypertension
Volume59
Issue number2
DOIs
StatePublished - Feb 1 2012

Keywords

  • Blood pressure
  • Genetic risk scores
  • Genome-wide association
  • Genome-wide profiling
  • Hypertension

ASJC Scopus subject areas

  • Internal Medicine

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  • Cite this

    Taal, H. R., Verwoert, G. C., Demirkan, A., Janssens, A. C. J. W., Rice, K., Ehret, G., Smith, A. V., Verhaaren, B. F. J., Witteman, J. C. M., Hofman, A., Vernooij, M. W., Uitterlinden, A. G., Rivadeneira, F., Ikram, M. A., Levy, D., Van Der Heijden, A. J., Jaddoe, V. W. V., & Van Duijn, C. M. (2012). Genome-wide profiling of blood pressure in adults and children. Hypertension, 59(2), 241-247. https://doi.org/10.1161/HYPERTENSIONAHA.111.179481