<abstract xmlns="http://www.w3.org/1999/xhtml"><p>Thirty California female rabbits were obtained from the Animal Care Center, College of Agriculture, South Valley University and acclimated to laboratory conditions for one week. The <italic>Leiurus quinquestriatus</italic> (LQ) venom was collected from mature scorpions by electrical stimulation of the telson. A single dose of crude venom of 0.4 ml/kg (diluted in normal saline with a ratio of 1:1) was injected into a peripheral ear vein. The lungs, brains, hearts, kidneys, were sampled and fixed in 10% formalin from rabbits sacrificed at zero, 30 minutes, 1hr, and 4hrs, post-envenomation (three animals at each sacrifice). Respiratory distress and neurological manifestations were the main clinical signs. Congestion of the lungs was started at one hour post-envenomation. Vascular changes including hyperemia and hemorrhage were also observed till 24 hours post-envenomation. The main histopathological changes of the lungs were edema, hemorrhage, emphysema, and eosinophilic bronchitis. Transmission electron microscopy revealed several eosinophils with abundant granules and breakdown of their membranes suggesting degranulation. The cerebrum showed malacia and edema. Myocardial damage expressed by focal area of myolysis at half-hour post-envenomation and interstitial edema by at 1, and 4 hour post-envenomation was also evident. In conclusion, scorpion venom induced consistent and relevant histopathological changes in all examined organs.</p></abstract>

Thirty California female rabbits were obtained from the Animal Care Center, College of Agriculture, South Valley University and acclimated to laboratory conditions for one week. The Leiurus quinquestriatus (LQ) venom was collected from mature scorpions by electrical stimulation of the telson. A single dose of crude venom of 0.4 ml/kg (diluted in normal saline with a ratio of 1:1) was injected into a peripheral ear vein. The lungs, brains, hearts, kidneys, were sampled and fixed in 10% formalin from rabbits sacrificed at zero, 30 minutes, 1hr, and 4hrs, post-envenomation (three animals at each sacrifice). Respiratory distress and neurological manifestations were the main clinical signs. Congestion of the lungs was started at one hour post-envenomation. Vascular changes including hyperemia and hemorrhage were also observed till 24 hours post-envenomation. The main histopathological changes of the lungs were edema, hemorrhage, emphysema, and eosinophilic bronchitis. Transmission electron microscopy revealed several eosinophils with abundant granules and breakdown of their membranes suggesting degranulation. The cerebrum showed malacia and edema. Myocardial damage expressed by focal area of myolysis at half-hour post-envenomation and interstitial edema by at 1, and 4 hour post-envenomation was also evident. In conclusion, scorpion venom induced consistent and relevant histopathological changes in all examined organs.

Light and Transmission Electron Microscopical Changes Associated with <italic>Leiurus Quinqestriatus</italic> Venom in Rabbits

Department of Pathology, Faculty of Veterinary Medicine

Department of Forensic Medicine and Toxicology, Faculty of Veterinary Medicine

Macedonian Veterinary Review

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Light and Transmission Electron Microscopical Changes Associated with  Venom in Rabbits

Thirty California female rabbits were obtained from the Animal Care Center, College of Agriculture, South Valley University and acclimated to laboratory...

Light and Transmission Electron Microscopical Changes Associated with Leiurus Quinqestriatus Venom in Rabbits

Publié en ligne: 15 mars 2016

Pages: 51 - 57

Reçu: 10 juil. 2015

Accepté: 19 nov. 2015

DOI: https://doi.org/10.1515/macvetrev-2015-0067

Mots clés
venom, rabbits, light and transmission electron microscopy

© 2015 Salah H. Afifi et al., published by De Gruyter Open

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Light and Transmission Electron Microscopical Changes Associated with Leiurus Quinqestriatus Venom in Rabbits

Publié en ligne: 15 mars 2016

Pages: 51 - 57

Reçu: 10 juil. 2015

Accepté: 19 nov. 2015

DOI: https://doi.org/10.1515/macvetrev-2015-0067

Mots clésvenom, rabbits, light and transmission electron microscopy

© 2015 Salah H. Afifi et al., published by De Gruyter Open

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Mots clés
venom, rabbits, light and transmission electron microscopy