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Coronary Progenitor Cells and Soluble Biomarkers in Cardiovascular Prognosis after Coronary Angioplasty
Published on: January 28, 2020
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.
Purpose:
C-reactive protein is an important risk factor for coronary artery disease, and plasma concentrations are lowered by treatment with pravastatin and aspirin. We examined whether other cardiovascular drugs that are used in the treatment of ischemic heart disease affect C-reactive protein concentrations.
Subjects And Methods:
Plasma C-reactive protein concentration was measured by high sensitivity immunonephelometric assay in 333 consecutive patients with stable angina and confirmed coronary artery disease who underwent diagnostic angiography.
Results:
Patients prescribed beta-blockers had significantly lower mean C-reactive protein concentrations than did patients in whom these were not prescribed (by 1.2 mg/L, or 40% difference in geometric mean concentration; P <0.001). This association remained significant (P = 0.03) after excluding patients with contraindications to the use of beta-blockers, and adjusting for the probability of beta-blocker therapy (propensity score) and other clinical predictors of C-reactive protein concentration, including body mass index, high-density lipoprotein cholesterol level, family history of coronary artery disease, and angiographic severity. No differences among types or dosages of beta-blockers were evident.
Conclusion:
Beta-blockers may affect C-reactive protein concentrations. Randomized studies are required to confirm these findings.
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