Listar Microbiología por autor "Arce, Viviana"
Mostrando ítems 1-5 de 5
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Neutralization of four Peruvian Bothrops sp. snake venoms by polyvalent antivenoms produced in Perú and Costa Rica: preclinical assessment
Rojas Umaña, Ermila; Quesada, Lil; Arce, Viviana; Lomonte, Bruno; Rojas Céspedes, Gustavo; Gutiérrez, José María (2005-06)Envenomations after bites inflicted by snakes of the genus Bothrops constitute a public health hazard in Perú, and the intravenous administration of equine-derived antivenoms represents the only scientifically validated ... -
Preclinical assessment of the ability of polyvalent (Crotalinae) and anticoral (Elapidae) antivenoms produced in Costa Rica to neutralize the venoms of North American snakes
Arce, Viviana; Rojas Umaña, Ermila; Ownby, Charlotte L.; Rojas Céspedes, Gustavo; Gutiérrez, José María (2003-06)Polyvalent (Crotalinae) and anticoral (Elapidae) antivenoms produced by Instituto Clodomiro Picado, Costa Rica, were assessed for their ability to neutralize various toxic activities of the venoms of North American snakes ... -
Structural and functional characterization of myotoxin I, a Lys49 phospholipase A2 homologue from the venom of the snake Bothrops atrox
Núñez Rangel, Vitelbina; Arce, Viviana; Gutiérrez, José María; Lomonte, Bruno (2004-07)A new myotoxin was isolated from the venom of Bothrops atrox from Colombia. B. atrox myotoxin I is a homodimer, with a subunit molecular mass of 13,826, and a pI of 8.9. Its complete nucleotide sequence was obtained by ... -
The venom of Bothrops asper from Guatemala: toxic activities and neutralization by antivenoms
Saravia Otten, Patricia; Rojas Umaña, Ermila; Escalante Muñoz, Teresa; Arce, Viviana; Chaves Olarte, Esteban; Velásquez, Rubén; Lomonte, Bruno; Rojas Céspedes, Gustavo; Gutiérrez, José María (2001-02)Bothrops asper is responsible for approximately half of the snakebite envenomations in Central America. Despite its medical relevance, only the venom of Costa Rican populations of this species has been studied to some ... -
Venom of the crotaline snake Atropoides nummifer (jumping viper) from Guatemala and Honduras: comparative toxicological characterization, isolation of a myotoxic phospholipase A(2) homologue and neutralization by two antivenoms
Rojas Umaña, Ermila; Saravia Otten, Patricia; Angulo Ugalde, Yamileth; Arce, Viviana; Lomonte, Bruno; Chávez, Juan José; Velásquez, Rubén; Thelestam, Mónica; Gutiérrez, José María (2001-07)A comparative study was performed on the venoms of the crotaline snake Atropoides nummifer from Guatemala and Honduras. SDS-polyacrylamide gel electrophoresis, under reducing conditions, revealed a highly similar pattern ...