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Coronary Progenitor Cells and Soluble Biomarkers in Cardiovascular Prognosis after Coronary Angioplasty
10:03

Coronary Progenitor Cells and Soluble Biomarkers in Cardiovascular Prognosis after Coronary Angioplasty

Published on: January 28, 2020

Platelet characteristics associated with coronary artery disease

R D McBane1, K Karnicki, N Tahirkheli

  • 1Division of Cardiovascular Medicine, Section of Hematology Research, Mayo Clinic and Foundation for Education and Research, 200 S.W. First Street, Rochester, MN 55905, USA.

Journal of Thrombosis and Haemostasis : JTH
|July 23, 2003
PubMed

Insights

Platelets from patients with coronary artery disease show reduced P-selectin expression and increased microaggregation. These platelet changes may reflect systemic atherosclerosis, not just acute injury.

Area of Science:

  • Cardiovascular Medicine
  • Hematology
  • Atherosclerosis Research

Background:

  • Circulating platelets may play a role in atherogenesis.
  • Platelet function markers can indicate disease activity.

Purpose of the Study:

  • To investigate platelet P-selectin expression and microaggregation in patients with coronary calcification (CC) and acute coronary syndromes (AC).
  • To assess the impact of angioplasty on platelet function.

Main Methods:

  • Measured P-selectin expression after thrombin stimulation.
  • Assessed platelet microaggregation using platelet count differences in citrate vs. EDTA anticoagulated samples.
  • Collected samples before, and at 30 minutes and 24 hours after angioplasty.

Main Results:

  • Platelets from AC and CC patients exhibited significantly lower P-selectin expression compared to normal donors.
  • Platelets from AC and CC patients showed a greater propensity for microaggregation in citrate anticoagulant.
  • Angioplasty led to a transient decrease in platelet count in platelet-rich plasma.

Conclusions:

  • Both stable (CC) and unstable (AC) coronary disease are linked to altered platelet populations with reduced P-selectin expression and increased microaggregation.
  • These platelet abnormalities may stem from systemic atherosclerosis or the atherogenic process, rather than solely from acute arterial injury.
Abstract

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