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[Toxicity of venoms from snakes of medical importance in México]. / Toxicidad de venenos de serpientes de importancia médica en México.
de Roodt, Adolfo R; Estévez-Ramírez, Judith; Paniagua-Solís, Jorge F; Litwin, Silvana; Carvajal-Saucedo, Alejandro; Dolab, Jorge A; Robles-Ortiz, Luis E; Alagón, Alejandro.
Afiliação
  • de Roodt AR; Area de Investigación y Desarrollo/Serpentario, Instituto Nacional de Producción de Biológicos--ANLIS Dr. Carlos G Malbrán, Buenos Aires, Argentina.
Gac Med Mex ; 141(1): 13-21, 2005.
Article em Es | MEDLINE | ID: mdl-15754746
The characterization of the toxic activities of snake venoms is necessary to understand the physiopathology of the envenomation and to test the potency of the antivenoms used to treat this pathology. Because of the lack of data on the toxic activities of venoms from Mexican snakes of medical importance, we studied the venoms from Bothrops asper, Athropoides nummifrr, Agkistrodon billineatus, Crotalus durissus durissus, Crotalus basiliscus, Crotalus scutulatus, Crotalus atrox and Micrurus nigrocinctus. The studies performed were: SDS-PAOE, determination of lethal potency, hemorrhagic, necrotizing, coagulation on plasma and fibrinogen, phospholipasic and fibri(noge)nolytic activities. In addition we studied the neutralizing capacity of the toxic activities of an antivenom currently used for the treatment of snakebites in Mexico. The venom from viperids showed important hemorrhagic, necrotizing, coagulative on plasma, prothrombinic, fibrinogenolytic and phospholipase activities. The venoms with the highest lethal potency were those of Micrurus nigrocinctus and Crotalus scutulatus; however, the viperine venom that globally displayed the most potent toxic activities was from Bothrops asper. All the venoms showed toxic activities of similar range to those described for other American venomous snakes. The activity on plasma or fibrinogen varied widely among the different venoms but all displayed capacity to act on the coagulation system. The antivenom tested not only neutralized the lethality B. asper venom but also its other toxic activities.
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Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Venenos de Serpentes Limite: Animals País/Região como assunto: Mexico Idioma: Es Revista: Gac Med Mex Ano de publicação: 2005 Tipo de documento: Article País de afiliação: Argentina País de publicação: México
Buscar no Google
Adicionar na Minha BVS
Imprimir
XML
PubMed Links

Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Venenos de Serpentes Limite: Animals País/Região como assunto: Mexico Idioma: Es Revista: Gac Med Mex Ano de publicação: 2005 Tipo de documento: Article País de afiliação: Argentina País de publicação: México