Neutrophil Activation in Thermal Injury as Assessed by Increased Expression of Complement Receptors

Authors:
  • FMFrancis D. Moore
    Francis D. Moore
  • CDCarl Davis
    Carl Davis
  • MRMary Rodrick
    Mary Rodrick
  • JMJohn A. Mannick
    John A. Mannick
  • DFDouglas T. Fearon
    Douglas T. Fearon

Abstract
We studied neutrophil activation in patients with burns by serial immunofluorescent measurement of neutrophil expression of the complement opsonin receptors CR1 and CR3. CR1-dependent fluorescence was initially (days 0 through 5 after the burn) elevated (mean ±SEM, 294±42 vs. 63±6 in the controls; P<0.001) and gradually returned to normal (days 6 through 8, 270±62, P<0.001; days 9 through 13, 185±38, P<0.001; days 14 through 19, 143±27, P<0.001; and days 20 through 50, 93±5, P<0.04). CR3-dependent fluorescence paralleled that of CR1.

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