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Olle Melander

Principal investigator

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Increased risk of acute myocardial infarction and elevated levels of C-reactive protein in carriersof the Thr-87 variant of the ATP receptor P2Y11.

Author

  • Stefan Amisten
  • Olle Melander
  • Anna-Karin Wihlborg
  • Göran Berglund
  • David Erlinge

Summary, in English

Aims Extracellular ATP acting on the P2Y(11) receptor regulates inflammatory cells. We hypothesized that polymorphisms in the receptor could influence the risk of acute myocardial infarction (AMI). Methods and results In the Malmo diet and cancer AMI case-control study (n = 3732) the P2Y(11) gene Thr-87 polymorphism was present in 19.8% of the controls and 22.9% in AMI patients (OR 1.21; P = 0.03). Stronger associations were found in patients with family history (FH) of AMI, 1.32; early-onset (EO) AMI, 1.43; or EO AMI combined with FH, 1.50; supporting a genetic mechanism. The Thr-87 homozygotes had an even greater risk of AMI, 1.94 (P = 0.04); and 2.48 in the EO AMI subgroup, suggesting a genetic dosage effect. In the cardiovascular risk factor group (n = 6055), 21.3% carried the Thr-87 allele. C-reactive protein was elevated in Thr-87 carriers: 1.6 mg/L vs. 1.3 mg/L (P = 0.001). No difference was seen for blood pressure, lipids, body mass index, smoking, or diabetes mellitus. Conclusion The common Ala-87-Thr polymorphism of the P2Y(11) receptor is associated with AMI and increased levels of C-reactive protein. We hypothesize that an inflammatory mechanism might be involved. The P2Y(11) receptor is a promising new drug target in the prevention of AMI.

Department/s

  • Cardiology
  • Cardiovascular Research - Hypertension
  • Internal Medicine - Epidemiology

Publishing year

2007

Language

English

Pages

13-18

Publication/Series

European Heart Journal

Volume

28

Issue

1

Document type

Journal article

Publisher

Oxford University Press

Topic

  • Cardiac and Cardiovascular Systems

Status

Published

Research group

  • Cardiovascular Research - Hypertension
  • Internal Medicine - Epidemiology

ISBN/ISSN/Other

  • ISSN: 1522-9645