[Changes in Metabolism and Function of Platelets Stored at Different Temperature]

Area of Science:

• Transfusion Medicine
• Hematology
• Biotechnology

Background:

• Platelet storage conditions significantly impact their metabolic and functional integrity.
• Optimizing platelet preservation is crucial for effective transfusion therapy.

Purpose of the Study:

• To compare metabolic and functional changes in platelets stored at 4°C versus 22°C with agitation.
• To establish an experimental foundation for advanced platelet cryopreservation technologies.

Main Methods:

• Platelets were stored at 4°C and 22°C with agitation for up to 21 days.
• Metabolic indicators (pH, glucose, gases, LDH, MPV, PDW) and thromboelastogram (TEM) were analyzed.

Main Results:

• Platelets at 4°C exhibited slower metabolism (e.g., stable pH, GLU, MPV initially) but decreased platelet count (Plt) and increased lactate dehydrogenase (LDH) and platelet distribution width (PDW) over time.
• Platelets at 22°C showed decreased pH, PCO2, GLU, Plt, and increased PO2, LDH, PDW, with only MPV remaining stable.
• Significant differences were observed in pH, PO2, Plt, MPV, LDH, and GLU between the two storage conditions, with 4°C storage showing lower pH and MPV, and higher GLU, PO2, LDH, and Plt levels compared to 22°C.
• Functional analysis indicated stronger aggregation (higher MA) in platelets stored at 4°C.

Conclusions:

• Platelets stored at 4°C demonstrate significantly slower metabolic activity compared to those stored at 22°C.
• Platelets stored at 4°C maintain superior aggregation potential over the same conservation period.
• Findings support 4°C storage as a potentially beneficial method for preserving platelet function.