Leukocyte and platelet changes following low-dose lipopolysaccharide administration in five dogs |
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| Authors: | Flatland B Fry M M LeBlanc C J Rohrbach B W |
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| Institution: | a Department of Pathobiology, College of Veterinary Medicine, University of Tennessee, Knoxville, TN, United States
b Department of Comparative Medicine, College of Veterinary Medicine, University of Tennessee, Knoxville, TN, United States |
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| Abstract: | Effects of low-dose LPS (0.1 μg/kg IV) on leukocyte and platelet parameters measured using an Advia 120 hematology analyzer were investigated. Five dogs received a saline sham treatment prior to LPS, and blood was collected before and 3, 6, and 24 h post-treatment. LPS-treated dogs had mild neutrophil toxic change and increased neutrophil bands at 3 and 6 h. Compared to saline-treated controls, total leukocyte, neutrophil, and monocyte counts of LPS-treated dogs were significantly decreased at 3 h and increased at 24 h. Compared to baseline, total leukocyte counts of LPS-treated dogs were significantly decreased at 3 h and increased at 24 h. Mean platelet volume was significantly increased and mean platelet component concentration was decreased at 3 h compared to baseline. Platelet count was significantly decreased at 3 and 6 h; plateletcrit did not change significantly. High dosage is not required in order to detect LPS-mediated hematologic effects in dogs. Low-dose LPS administration causes significant changes in leukocyte and platelet indices in dogs without causing severe clinical signs or death. |
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| Keywords: | Canine Endotoxin Flow cytometry Leukocyte Lipopolysaccharide Platelet |
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