• Previous studies have shown that the decreased neutrophil migratory responsiveness seen in burned patients correlates with the extent of thermal injury and the extent of the neutrophil-specific granule deficiency. To understand better the relationship between the neutrophil dysfunction, degranulation, and thermal injury, a rabbit model was studied. Eighteen rabbits were burned over 20% of their surface area. Assay of peripheral blood heterophils disclosed decreased migratory activity compared with preburn levels and decreased lysozyme content vs preburn levels, but no change in the β-glucuronidase content. The specific binding of tritiated formyl-methionyl-leucyl-phenylalanine to peripheral blood heterophils was increased fivefold over that of control cells. These studies indicate that, following thermal injury, there is a selective decrease of specific granule contents and an increase in chemoattractant binding to the cell and also suggest an abnormality in chemoattractant receptor processing. The rabbit provides a convenient model for the study of compromised host defenses following thermal injury.
(Arch Surg 1988;123:752-755)
Davis JM, Gallin JI. Abnormal Rabbit Heterophil Chemotaxis Following Thermal InjuryAn In Vivo Model of an Abnormality of the Chemoattractant Receptor for f-met-leu-phe. Arch Surg. 1988;123(6):752-755. doi:10.1001/archsurg.1988.01400300098017