Browsing Biología by Procedence
Now showing items 21-30 of 30
-
Neutralization of proteolytic and hemorrhagic activities of Costa Rican snake venoms by a polyvalent antivenom
(1985)The polyvalent antivenom produced at the Instituto Clodomiro Picado, Costa Rica, was tested for its capacity to neutralize proteolytic and hemorrhagic activities of ten Costa Rican crotaline venoms. In experiments with ... -
Pathogenesis of myonecrosis induced by crude venom and a myotoxin of Bothrops asper.
(1984)The pathogenesis of skeletal muscle necrosis induced by crude Bothrops asper venom and isolated myotoxic phospholipase was studied using light and electron microscopy. White mice were injected intramuscularly with a dose ... -
Pharmacological activities of a toxic phospholipase A isolated from the venom of the snake Bothrops asper
(1986)A toxic phospholipase A was isolated from the venom of Bothrops asper. It induced skeletal muscle damage, anticoagulant effects and edema in the foot pad. The toxin had an intravenous LD50 of 95 micrograms/16-18 g mouse ... -
Polimorfismo cromosómico intraespecífico en la serpiente de coral Micrurus nigrocinctus (Ophidia: Elapidae)
(1981)En un estudio cito genético de 59 ejemplares de la serpiente de coral Micrurus nigrocinctus procedentes de todas las áreas de distribución de Costa Rica, se observó dos patrones cariológicos principales: I o "nigrocinctus" ... -
El problema de los efectos hemorrágico y mionecrótico por mordeduras de serpiente en el continente Americano
(1980)Los efectos locales que aparecen como consecuencia de la mordedura de serpientes constituyen un problema de salud importante en las Américas. Sin embargo, la eficacia del suero antiofídico que se usa parece ser escasa, ... -
Prolonged development of the middle ear in Rhinella horribilis
(2018)Despite the benefit of the tympanic middle ear to airborne hearing sensitivity, anurans range in how soon they develop functional middle ears after transitioning to life on land. Previous evi- dence suggested that bufonids ... -
Quantitation of myonecrosis induced by myotoxin a from prairie rattlesnake (Crotalus viridis viridis) venom
(1982)Using a pure myotoxin (myotoxin a) isolated from prairie rattlesnake Crotalus viridis viridis) venom, a comparison between two methods for quantitating myonecrosis in mice was made. Measurement of creatine kinase (CK) ... -
Sexual dimorphism in the second-to-fourth digit length ratio in green anoles, Anolis carolinensis (Squamata: Polychrotidae), from the southeastern United States
(2006)Digit length ratios are organized during embryonic development and may show sexual dimorphism related to steroid exposure. The second-to-fourth digit length ratio (2D:4D) has received the most attention. In the present ... -
Skeletal muscle regeneration after myonecrosis induced by crude venom and a myotoxin from the snake Bothrops asper (Fer-de-Lance).
(1984)Skeletal muscle regeneration was studied following injections of Bothrops asper venom and a myotoxin isolated from the crude venom. In toxin-injected muscle regeneration proceeded normally. By 4 days there were myotubes ... -
To beg or to freeze: multimodal sensory integration directs behavior in a tadpole
(2012)Effective coordination of behaviors such as foraging and avoiding predators requires an assessment of cues provided by other organisms. Integrating cues from multiple sensory modalities may enhance the assessment. We studied ...