Assessment of genetic determinants of the association of γ′ fibrinogen in relation to cardiovascular disease

Rehana S. Lovely, Qiong Yang, Joseph M. Massaro, Jing Wang, Ralph B. D'Agostino, Christopher J. O'Donnell, Jackilen (Jackie) Shannon, David Farrell

Research output: Contribution to journalArticle

29 Citations (Scopus)

Abstract

OBJECTIVE-: γ′ fibrinogen is a newly emerging biomarker that is associated with cardiovascular disease (CVD). However, the genetic determinants of γ′ fibrinogen levels are unknown. We therefore conducted a genome-wide association study on 3042 participants from the Framingham Heart Study Offspring Cohort. METHODS AND RESULTS-: A genome-wide association study with 2.5 million single-nucleotide polymorphisms (SNPs) was carried out for γ′ fibrinogen levels from the cycle 7 examination. Fifty-four SNPs in or near the fibrinogen gene locus demonstrated genome-wide significance (P-8) for association with γ′ fibrinogen levels. The top-signal SNP was rs7681423 (P=9.97×10-110) in the fibrinogen gene locus near FGG, which encodes the γ chain. Conditional on the top SNP, the only other SNP that remained genome-wide significant was rs1049636. Associations between SNPs, γ′ fibrinogen levels, and prevalent CVD events were examined using multiple logistic regression. γ′ fibrinogen levels were associated with prevalent CVD (P=0.02), although the top 2 SNPs associated with γ′ fibrinogen levels were not associated with CVD. These findings contrast those for total fibrinogen levels, which are associated with different genetic loci, particularly FGB, which encodes the Bβ chain. CONCLUSION-: γ′ fibrinogen is associated with prevalent CVD and with SNPs exclusively in and near the fibrinogen gene locus.

Original languageEnglish (US)
Pages (from-to)2345-2352
Number of pages8
JournalArteriosclerosis, Thrombosis, and Vascular Biology
Volume31
Issue number10
DOIs
StatePublished - Oct 2011

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Fibrinogen
Cardiovascular Diseases
Single Nucleotide Polymorphism
Genome-Wide Association Study
Genome
Genes
Genetic Loci
Cohort Studies
Biomarkers
Logistic Models

Keywords

  • coronary heart disease
  • epidemiology
  • fibrin
  • gene mutations
  • risk factors

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine

Cite this

Assessment of genetic determinants of the association of γ′ fibrinogen in relation to cardiovascular disease. / Lovely, Rehana S.; Yang, Qiong; Massaro, Joseph M.; Wang, Jing; D'Agostino, Ralph B.; O'Donnell, Christopher J.; Shannon, Jackilen (Jackie); Farrell, David.

In: Arteriosclerosis, Thrombosis, and Vascular Biology, Vol. 31, No. 10, 10.2011, p. 2345-2352.

Research output: Contribution to journalArticle

Lovely, Rehana S. ; Yang, Qiong ; Massaro, Joseph M. ; Wang, Jing ; D'Agostino, Ralph B. ; O'Donnell, Christopher J. ; Shannon, Jackilen (Jackie) ; Farrell, David. / Assessment of genetic determinants of the association of γ′ fibrinogen in relation to cardiovascular disease. In: Arteriosclerosis, Thrombosis, and Vascular Biology. 2011 ; Vol. 31, No. 10. pp. 2345-2352.
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