Red Blood Cell Storage with Xenon: Safe or Disruption?

Area of Science:

• Biomedical Engineering
• Hematology
• Inert Gas Applications

Background:

• Inert gases like xenon are explored for medical applications, including tissue preservation.
• Prolonged storage of packed red blood cells (pRBCs) faces challenges with maintaining cellular integrity.
• Hypoxic conditions are often employed to extend the shelf-life of biological materials.

Purpose of the Study:

• To evaluate the effect of xenon on erythrocyte parameters during prolonged storage of packed red blood cells (pRBCs).
• To investigate potential protective properties of xenon for pRBCs under hypoxic conditions.

Main Methods:

• In vitro experiments using two distinct methods to induce hypoxic conditions.
• Xenon administration to pRBCs stored in both specialized bags and glass tubes for 42 days.
• Assessment of erythrocyte morphology, hemolysis levels, and deoxyhemoglobin production.

Main Results:

• Xenon exposure caused significant alterations in erythrocyte morphology, comparable to standard storage.
• Hemolysis in xenon-treated pRBC bags was six times higher than acceptable limits.
• Minimal hemolysis was observed in xenon-exposed samples within closed glass tubes.
• Deoxyhemoglobin production was specifically linked to xenon exposure in both cell suspensions and hemolysates.

Conclusions:

• Xenon did not demonstrate protective effects on packed red blood cells (pRBCs) during prolonged storage.
• Xenon exposure may negatively impact pRBC viability, particularly in bag storage systems.
• Further research is needed to understand the specific mechanisms of xenon-induced erythrocyte changes.