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Please use this identifier to cite or link to this item: http://hdl.handle.net/123456789/2443

Title: Effect of selected anti-inflammatory drugs on the lethal actions of leiurus quinquestriatus venom
Authors: Abdoon, N.A.
Ali, A.A.
Alnema, A.A.
Hag-Ali, M.
Fatani, A.J.
Keywords: Leiurus quinquestriatus quinquestriatus
Scorpion venom
Acute respiratory distress syndrome
Systemic inflammatory response syndrome
Multiple organ failure
Issue Date: 31-Aug-2006
Publisher: The Center for the Study of Venoms and Venomous Animals
Citation: J. Venom. Anim. Toxins incl. Trop. Dis.: 12 (3); 374-389
Abstract: The cumulative actions of scorpion neurotoxins are complex and may be traced to activation of different ion channels with subsequent release of various transmitters and modulators including inflammatory mediators. This could lead to various pathological manifestations such as acute respiratory distress syndrome (ARDS), systemic inflammatory response syndrome (SIRS), and multiple organ failure (MOF). Several approaches have been advocated to treat the multitude of scorpion-venom-elicited pathological changes. However, few have tried to combat the venom-induced effects on the inflammatory process, which manifest as ARDS, SIDS and MOF. Thus, the aim of this study was to determine the capability of inhibitors of different steps of the inflammatory sequence of events in scorpion envenomation to ameliorate the detrimental action of the venom and prolong survival of mice injected with Leiurus quinquestriatus quinquestriatus (LQQ) venom. Animals were divided into groups (n = 10) and given montelukast (10 or 20 mg.kg-1, orally), hydrocortisone (5 or 10 mg.kg-1, intravenously) or indomethacin (10 or 20 mg kg-1, intravenously). Then, all animals were subcutaneously injected with either 0.25 or 0.3 mg.kg-1 LQQ venom. Signs and symptoms of envenomation were recorded and survival percentages after 24 hours as well as survival time were determined in each group. To analyze data, we utilized Covariance Wilcoxon survival statistics and survival distribution curves. In general, when compared to venom alone, administration of montelukast (p<0.001), hydrocortisone (p<0.05) and indomethacin (p<0.05) prolonged survival time and increased the percentage of surviving animals per group, with montelukast exhibiting the greatest protecting power. Thus, anti-inflammatory drugs may play an important role in protection against the lethal effects of scorpion venoms.
Description: The Journal of Venomous Animals and Toxins including Tropical Diseases, the first Brazilian electronic journal, is the official publication of The Center for the Study of Venoms and Venomous Animals (CEVAP) of the Universidade Estadual Paulista (UNESP), Botucatu, São Paulo State, Brazil.
URI: http://www.scielo.br/revistas/jvatitd/iaboutj.htm#001
ISSN: 1678-9199
Appears in Collections:College of Pharmacy

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