Related Experiment Video
Updated: Jun 7, 2026

10:10
Platelet Adhesion and Aggregation Under Flow using Microfluidic Flow Cells
Published on: October 27, 2009
Evaluation of platelet function by kinetic analysis of platelet aggregation
A Suehiro1, T Higashi, E Kakishita
1Second Department of Internal Medicine, Hyogo College of Medicine, 1-1 Mukogawa-cho, Nishinomiya, Hyogo, 663, Japan.
Platelets
|November 4, 2010
Summary
This study introduces a novel method for measuring platelet aggregation by counting single platelets. This approach offers a more accurate way to assess platelet aggregability and velocity in different individuals.
Area of Science:
- Hematology
- Biomedical Engineering
- Clinical Diagnostics
Background:
- Platelet aggregation is crucial for hemostasis and thrombosis.
- Traditional spectroscopic methods using aggregometers can be influenced by platelet deformation and plasma permeability changes.
- Accurate measurement of platelet aggregation is essential for diagnosing and managing bleeding and clotting disorders.
Purpose of the Study:
- To develop and evaluate a novel method for measuring platelet aggregation.
- To assess platelet aggregability by measuring the velocity of platelet aggregation.
- To provide a more accurate and reliable method for platelet function testing.
Main Methods:
- Developed a laboratory method for measuring platelet aggregation by chronologically counting non-aggregated single platelets.
- Utilized platelet-rich plasma (PRP) with adenosine diphosphate (ADP) as an agonist.
- Measured the velocity of platelet aggregation in different subjects.
Main Results:
- The novel single platelet counting method provides a direct measure of platelet aggregation.
- The method allows for the evaluation of platelet aggregation velocity.
- Preliminary data suggests the method is applicable across different subjects.
Conclusions:
- The single platelet counting method offers a potentially more accurate alternative to traditional aggregometry.
- Measuring platelet aggregation velocity provides valuable insights into platelet function.
- This method could enhance the diagnosis and monitoring of platelet-related disorders.
Related Concept Videos
Formation of the Platelet Plug
The platelet phase, the second stage of hemostasis, commences around 15-20 seconds after an injury. It follows and overlaps with the vascular phase, during which blood vessels constrict to minimize blood loss.
As the injured blood vessel contracts, endothelial cells undergo contraction, revealing collagen fibers in the basement membrane and underlying connective tissue. Furthermore, the plasma membrane of endothelial cells becomes adhesive, preparing the site for platelet adhesion. Platelets...
As the injured blood vessel contracts, endothelial cells undergo contraction, revealing collagen fibers in the basement membrane and underlying connective tissue. Furthermore, the plasma membrane of endothelial cells becomes adhesive, preparing the site for platelet adhesion. Platelets...
Structure and Function of Platelets
The cell fragments known as platelets are disc-shaped, with an average diameter of about 3 μm and a thickness of roughly 1 μm. They play a crucial role in the body's vascular clotting system, which also involves plasma proteins, blood cells, and blood vessel tissues.
Platelets are continually replenished, circulating in the bloodstream for 9-12 days before being removed by phagocytes, primarily in the spleen. A microliter of circulating blood contains between 150,000 and 450,000 platelets, with...
Platelets are continually replenished, circulating in the bloodstream for 9-12 days before being removed by phagocytes, primarily in the spleen. A microliter of circulating blood contains between 150,000 and 450,000 platelets, with...
