C-reactive protein and coronary heart disease: a critical review

J P Casas1, T Shah, A D Hingorani

  • 1Department of Epidemiology and Population Health, London School of Hygiene and Tropical Medicine, University College London, London, UK.

Insights

C-reactive protein (CRP) elevations link to heart disease risk and complications. This review examines evidence on CRP

Area of Science:

  • Cardiovascular Medicine
  • Inflammation Biology
  • Biomarker Research

Background:

  • C-reactive protein (CRP) is an acute phase protein with documented associations to coronary heart disease (CHD) risk.
  • High CRP levels post-myocardial infarction correlate with mortality and adverse cardiac events.
  • The precise clinical and pathogenic roles of CRP in these contexts remain debated.

Purpose of the Study:

  • To critically evaluate the evidence linking C-reactive protein (CRP) to cardiovascular outcomes.
  • To differentiate the significance of acute, high-level CRP responses versus modest, persistent elevations.
  • To inform the ongoing debate regarding CRP's role in cardiovascular disease pathogenesis and risk.

Main Methods:

  • Comprehensive review of large-scale epidemiological studies.
  • Analysis of novel experimental research investigating CRP's mechanisms.
  • Consideration of potential targeted therapies for modulating CRP.

Main Results:

  • Distinguishes between CRP's role in acute injury settings versus chronic low-grade inflammation.
  • Highlights the controversial nature of CRP's direct pathogenicity.
  • Emphasizes the need for rigorous investigation into distinct CRP concentration patterns.

Conclusions:

  • The clinical significance of CRP elevations varies depending on the context (acute vs. baseline).
  • Further research is crucial to elucidate the direct pathogenic role of CRP in cardiovascular disease.
  • Distinguishing between different CRP elevation patterns is key for accurate risk assessment and therapeutic strategies.

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