Abstract
Bee stings are a health concern in the Americas, where fatal envenomings due to massive attacks by Africanized honeybees have been documented in the last decades. Most studies on the toxic effects of honeybee venom in experimental animals have been performed using the intravenous or intraperitoneal injection routes. The aim of this study was to develop a mouse model that would better resemble a massive honeybee attack by using the subcutaneous (s.c.) route to induce a severe, sublethal systemic envenoming. An array of acute venom effects were characterized, including biochemical, hematological, histological, and inflammatory alterations, after the s.c. injection of 0.5 median lethal dose of venom. Rapid increases in serum alanine (ALT) and aspartate (AST) transaminases, creatinine, urea nitrogen, uric acid, sodium and chloride electrolytes, and creatine kinase (CK) were recorded, indicating damage to liver, kidneys, and skeletal muscle. Also, coagulation disturbances (fibrinogen decrease, and moderate delay in prothrombin and partial thromboplastin times) were demonstrated. Circulating platelet and leukocyte numbers remained unaltered, but a hemoconcentration effect (hematocrit and hemoglobin increase) was observed. This effect...Continue Reading
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