C-reactive protein gene polymorphisms and the incidence of post-angioplasty restenosis

Robert Y L Zee1, Hillary H Hegener, Arturo Fernandez-Cruz

  • 1Division of Preventive Medicine, Brigham and Women's Hospital, Harvard Medical School, 900 Commonwealth Avenue East, Boston, MA 02215, USA. rzee@rics.bwh.harvard.edu

Atherosclerosis
|September 24, 2004
PubMed

Insights

This study investigated genetic variants in the C-reactive protein (CRP) gene and their association with restenosis after coronary angioplasty. No significant link was found between CRP gene polymorphisms and restenosis risk in patients.

Area of Science:

  • Cardiovascular Genetics
  • Molecular Epidemiology
  • Interventional Cardiology

Background:

  • Plasma C-reactive protein (CRP) levels are established predictors of restenosis post-coronary angioplasty.
  • CRP levels exhibit heritability, suggesting a potential genetic influence.
  • Limited genetic-epidemiological data exist on CRP gene variants and restenosis risk.

Purpose of the Study:

  • To investigate the association between specific C-reactive protein (CRP) gene polymorphisms (1059G > C and T > A) and the risk of restenosis after angioplasty.
  • To analyze haplotype frequencies of CRP gene variants in relation to restenosis.

Main Methods:

  • A cohort of 779 post-angioplasty patients, including 342 who developed restenosis, was analyzed.
  • Genotyping for CRP gene polymorphisms (1059G > C, T > A) and haplotype analysis were performed.
  • Logistic and linear regression models, adjusted for confounders, were used to assess associations.

Main Results:

  • Genotype and allele distributions for the studied CRP gene polymorphisms were similar between restenosis cases and controls.
  • Haplotype frequency distributions also showed no significant differences between cases and controls.
  • Statistical analyses, including haplotype-based regression, yielded null results, indicating no association.

Conclusions:

  • The tested polymorphisms and haplotypes within the C-reactive protein (CRP) gene are not associated with restenosis risk following coronary angioplasty.
  • Further research may be needed to explore other genetic factors or environmental influences on post-angioplasty restenosis.

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