Numerical and functional modifications in platelets induced by polyester coated by a hydrophilic polymer

Area of Science:

• Biomedical Engineering
• Hematology
• Materials Science

Background:

• Platelets play a crucial role in hemostasis and thrombosis.
• Plasma filtration is used in various medical procedures, necessitating an understanding of its effects on blood components.
• The interaction between blood components and filter materials is critical for patient safety.

Purpose of the Study:

• To evaluate the impact of hydrophilic polymer-coated polyester filters on platelet number, morphology, and function.
• To assess platelet activation and release reactions following plasma filtration.
• To determine the safety of this specific filter material for plasma processing.

Main Methods:

• Platelet counts were performed before and after filtration.
• Mean platelet volume (MPV) was measured to assess morphological changes.
• Platelet aggregation tests were conducted using adenosine diphosphate (ADP) and collagen as agonists.
• Radioimmunoassays were used to detect beta-thromboglobulin, platelet factor 4, and thromboxane B2 as markers of platelet release reaction.

Main Results:

• Plasma filtration through the coated polyester material did not result in significant platelet adhesion.
• No significant alterations were observed in platelet volume or aggregation function post-filtration.
• No evidence of platelet release reaction was detected, as indicated by assays for specific markers.

Conclusions:

• Hydrophilic polymer-coated polyester filters do not adversely affect platelet characteristics.
• The filtration process using this material is safe for platelets, preserving their number, morphology, and function.
• These findings support the use of such filters in clinical applications involving plasma processing without compromising platelet integrity.