Genomic loci with pleiotropic effects on coronary artery calcification

Stephen T Turner, Patricia A. Peyser, Sharon L R Kardia, Lawrence F. Bielak, Patrick F. Sheedy, Eric Boerwinkle, Mariza De Andrade

Research output: Contribution to journalArticle

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Abstract

We measured 381 genomewide markers and performed genetic linkage analyses in search of loci influencing coronary artery calcification (CAC), a measure of atherosclerosis determined by electron beam computed tomography, in 948 non-Hispanic white siblings (mean age [±standard deviation] = 59.6 ± 9.9 years; 73.7% hypertensive). Measured risk factors for atherosclerosis included body mass index, pulse pressure, and high-density lipoprotein (HDL)-cholesterol. After adjustment for sex and age, the logarithm transformed measure of CAC was heritable (0.40 ± 0.08, P < 0.0001) and genetically correlated with body mass index (0.28, P < 0.001), pulse pressure (0.36, P < 0.001), and HDL-cholesterol (-0.19, P < 0.001). Univariate linkage analysis demonstrated evidence of linkage for CAC, defined by maximum LOD scores (MLS) ≥ 1.30, on chromosomes 1p, 4p, 5q, 7p, 13q, and 14q. Bivariate linkage analyses of CAC with each risk factor provided evidence of two regions with pleiotropic effects on CAC and HDL-cholesterol on chromosomes 4p16 (MLS = 3.03, P = 0.00084) and 9q12 (MLS = 3.21, P = 0.00056), and of a region with pleiotropic effects on CAC and body mass index on chromosome 17p11 (MLS = 3.04, P = 0.00082). Inasmuch as the chromosome 9 and 17 regions were not detected in the univariate linkage analysis for CAC, multivariate linkage analyses of CAC and genetically correlated risk factors may help localize genes for coronary atherosclerosis.

Original languageEnglish (US)
Pages (from-to)340-346
Number of pages7
JournalAtherosclerosis
Volume185
Issue number2
DOIs
StatePublished - Apr 2006

Fingerprint

Coronary Vessels
HDL Cholesterol
Body Mass Index
Chromosomes
Atherosclerosis
Blood Pressure
Chromosomes, Human, Pair 9
Chromosomes, Human, Pair 17
Genetic Linkage
X Ray Computed Tomography
Coronary Artery Disease
Multivariate Analysis
Genes

Keywords

  • Blood pressure
  • Coronary artery calcification
  • Coronary artery disease
  • Genetic linkage
  • High-density lipoprotein-cholesterol
  • Multivariate
  • Obesity
  • Pulse pressure

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine

Cite this

Genomic loci with pleiotropic effects on coronary artery calcification. / Turner, Stephen T; Peyser, Patricia A.; Kardia, Sharon L R; Bielak, Lawrence F.; Sheedy, Patrick F.; Boerwinkle, Eric; De Andrade, Mariza.

In: Atherosclerosis, Vol. 185, No. 2, 04.2006, p. 340-346.

Research output: Contribution to journalArticle

Turner, Stephen T ; Peyser, Patricia A. ; Kardia, Sharon L R ; Bielak, Lawrence F. ; Sheedy, Patrick F. ; Boerwinkle, Eric ; De Andrade, Mariza. / Genomic loci with pleiotropic effects on coronary artery calcification. In: Atherosclerosis. 2006 ; Vol. 185, No. 2. pp. 340-346.
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