Beta-blockers are associated with lower C-reactive protein concentrations in patients with coronary artery disease

Nicholas P Jenkins1, Brian G Keevil, Ian V Hutchinson

  • 1University Department of Cardiology, Regional Cardiac Centre, Wythenshawe Hospital, Manchester, United Kingdom.

Insights

Beta-blockers significantly lower C-reactive protein (CRP) levels in patients with coronary artery disease. Further randomized studies are needed to confirm this association and its clinical implications for cardiovascular risk.

Area of Science:

  • Cardiology
  • Clinical Pharmacology
  • Biomarkers

Background:

  • C-reactive protein (CRP) is a key inflammatory marker and risk factor for coronary artery disease (CAD).
  • Pravastatin and aspirin are known to reduce plasma CRP concentrations.
  • The impact of other cardiovascular drugs on CRP levels remains less understood.

Purpose of the Study:

  • To investigate the effect of beta-blockers on C-reactive protein concentrations in patients with stable angina and confirmed coronary artery disease.

Main Methods:

  • A high-sensitivity immunonephelometric assay was used to measure plasma CRP in 333 patients.
  • Patients with stable angina undergoing diagnostic angiography were included.
  • Statistical analyses adjusted for potential confounders, including propensity scores.

Main Results:

  • Patients treated with beta-blockers exhibited significantly lower mean CRP concentrations compared to those not on beta-blockers (40% difference).
  • This association persisted after adjusting for contraindications, propensity scores, and other clinical predictors of CRP.
  • No significant differences in CRP levels were observed among different types or dosages of beta-blockers.

Conclusions:

  • Beta-blocker therapy may influence C-reactive protein concentrations in patients with coronary artery disease.
  • Randomized controlled trials are necessary to validate these findings and elucidate the clinical significance.
Abstract

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