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. Author manuscript; available in PMC: 2013 Sep 16.
Published in final edited form as: Crit Care Clin. 2009 Apr;25(2):325–Contents. doi: 10.1016/j.ccc.2009.01.002

Fig. 1.

Fig. 1

Isolated human neutrophils (PMNs) were incubated with the plasma fraction from stored RBCs or PolyHeme at concentrations equivalent to one through eight units of acute transfusion. (A) PMN superoxide production. (B) PMN elastase release. Formyl-methionyl-leucyl-phenylalanine (fMLP) is employed as a PMN activator, and platelet-activating factor (PAF; primer) followed by fMLP approximates maximal PMN response. *P<.05.