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Updated: Dec 24, 2025

Author Spotlight: Revealing Platelet Dynamics Through Advances in Structural Hematology
05:41

Author Spotlight: Revealing Platelet Dynamics Through Advances in Structural Hematology

Published on: May 24, 2024

551

A transmission electron microscopy study of anticoagulant-induced platelet vesiculation

Bahaa Hadi Almhanawi1, Bahariah Khalid2, Tengku Azmi Ibrahim3

  • 1Department of Pathology, Faculty of Medicine and Health Sciences, University Putra Malaysia, Malaysia.

Porto Biomedical Journal
|April 8, 2020
PubMed

Insights

Ethylenediaminetetraacetic acid (EDTA) tubes cause platelet activation and release of platelet microparticles (PMPs), affecting analysis. Sodium citrate tubes are superior for accurate PMP studies due to minimal impact on platelet structure.

Area of Science:

  • Hematology
  • Biochemistry
  • Cell Biology

Background:

  • Platelet microparticles (PMPs) are crucial biomarkers for various diseases.
  • Accurate PMP analysis is vital for prognostic, diagnostic, and therapeutic applications.

Purpose of the Study:

  • To compare the effects of EDTA and sodium citrate anticoagulants on platelet structure and PMP vesiculation.
  • To identify pre-analytical artifacts in PMP analysis.

Main Methods:

  • Transmission electron microscopy (TEM) was used to visualize platelet morphology.
  • Direct comparison of platelet structure and PMP formation in EDTA vs. sodium citrate tubes.

Main Results:

  • EDTA induced significant morphologic changes and PMP vesiculation in platelets.
  • Sodium citrate maintained normal platelet structure with minimal PMP formation.
  • EDTA acts as a significant source of pre-analytical artifacts in PMP studies.

Conclusions:

  • EDTA anticoagulant activates platelets, leading to artifactual PMP vesiculation.
  • Sodium citrate is the preferred anticoagulant for accurate platelet microparticle analysis.
  • Understanding anticoagulant effects is critical for reliable PMP biomarker studies.
Keywords:
EDTAPlatelet microparticlesPre-analytical artifactsSodium citrateTransmission electron microscopy

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