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Markers of cell damage of buffy-coat derived platelet concentrates in additive solutions


Authors: L. Řehořová 1,2;  R. Procházková 1,2
Authors‘ workplace: Transfuzní oddělení, Krajská nemocnice Liberec, a. s. 1;  Ústav zdravotnických studií, Technická univerzita v Liberci 2
Published in: Transfuze Hematol. dnes,17, 2011, No. 2, p. 85-91.
Category: Comprehensive Reports, Original Papers, Case Reports

Overview

Background:
The aim of the study was to compare markers of cell damage and platelet activation of buffy-coat derived platelet concentrates (PCs) during storage in two types of additive solutions (PASs) in two different storage bags. PASs reduce plasma-associated transfusion reactions and conserve plasma for transfusion or fractionation.

Materials and Methods:
PCs were prepared from leukocyte-depleted pools of four buffy-coats (BCPs) suspended in one of 70% PASs: 30% plasma (Composol, Fresenius - Kabi; T-Sol, Baxter Corp.). Two different storage bags were used (R4R7036, Fenwal; Autostop, Pall Corp.). On the days 0 and 5 of storage samples were tested for PLT concentration, pH, glucose, lactate and sP-Selectin. Data were analyzed by analysis with two-sample t-tests, paired test and Pearson correlation coefficient. Statistical significance was assessed at p <0.05.

Results:
PLT yields were higher then 2x1011platelets/unit in all of PCs. There was the significant decrease of platelet concentration during storage for 5 days in all bags or media. The pH of all PCs was 6.8 on the 5th day of storage. Glucose consumption and lactate production in all types of bags and media were significantly different during storage. Lactate production and glucose consumption in T-Sol were higher than those items in Composol and they resulted in lower pH values. We showed the influence of storage bags for platelet activation, too.

Conclusion:
The development of markers of cell damage in PCs was influenced mainly by used platelet storage solution, platelet storage bags affected the status of platelet activation.

Key words:
platelet additive solution, platelet, platelet function, platelet activation, platelet storage


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Labels
Haematology Internal medicine Clinical oncology
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