A comparison of different methods of red blood cell leukoreduction and additive solutions on the accumulation of neutrophil-priming activity during storage
Abstract
Three methods of leukoreduction (LR) are used worldwide: filtration, buffy coat removal (BCR), and a combination of the previous two methods. Additionally, there are a number of additive solutions (ASs) used to preserve red blood cell (RBC) function throughout storage. During RBC storage, proinflammatory activity accumulates; thus, we hypothesize that both the method of LR and the AS affect the accumulation of proinflammatory activity. Ten units of whole blood were drawn from healthy donors, the RBC units were isolated, divided in half by weight, and leukoreduced by: 1) BCR, 2) filtration, or 3) BCR and filtration (combination-LR); stored in bags containing AS-3 per AABB criteria; and sampled weekly. The supernatants were isolated and frozen (-80°C). RBC units drawn from healthy donors into AS-1-, AS-3-, or AS-5-containing bags were also stored and sampled weekly, and the supernatants were isolated and frozen. The supernatants were assayed for neutrophil (PMN)-priming activity and underwent proteomic analyses. Filtration and combination LR decreased priming activity accumulation versus buffy coat LR, although the accumulation of priming activity was not different during storage. Combination LR increased hemolysis versus filtrat...Continue Reading
References
Brief report: shock and multiple-organ dysfunction after self-administration of Salmonella endotoxin
Analysis of the priming activity of lipids generated during routine storage of platelet concentrates
Transfusion-related acute lung injury: epidemiology and a prospective analysis of etiologic factors.
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