Buscar
Mostrando ítems 21-30 de 314
Cleavage of the NH2-Terminal Octapeptide of Bothrops asper Myotoxic Lysine-49 Phospholipase A2 Reduces Its Membrane-Destabilizing Effect
(1994-08)
Bothrops asper myotoxin II was cleaved with cyanogen bromide to determine the role of NH2-terminal amino acid residues in its ability to destabilize negatively charged liposomes and to induce myonecrosis. After treatment, ...
Development of immunoassays for determination of circulating venom antigens during envenomations by coral snakes (Micrurus species)
(1997-11)
A reverse agglutination assay and two capture enzyme-linked immunoassays (ELISAs) for the quantitative determination of Micrurus nigrocinctus nigrocinctus venom antigens in fluids were developed using affinity-purified ...
Parasitismo imaginario: experiencia clínica y diagnóstica
(2012-06-01)
Objetivo: describir los casos de parasitismo imaginario observados en el Laboratorio de Entomología Médica, Facultad de Microbiología, Universidad de Costa Rica durante 2001-2011.
Métodos: se describen 9 casos cuyas ...
New approaches & technologies of venomics to meet the challenge of human envenoming by snakebites in India
(2013-07)
The direct estimate of 46,000 snakebite deaths in India in 2005 (1 for every 2 HIV/AIDS deaths), based on verbal autopsies, renders unrealistic the total of only 47,000 snakebite deaths in the whole world in 2010, obtained ...
Phospholipase A2 myotoxins from Bothrops snake venoms
(1995-11)
Several myotoxins have been isolated from Bothrops snake venoms during the last 10 years. All of them are group II basic phospholipases A2, although some lack enzymatic activity (i.e. Lys-49 variants). These myotoxins ...
Primary structures and partial toxicological characterization of two phospholipases A2 from Micrurus mipartitus and Micrurus dumerilii coral snake venoms
(2017-06)
Snake venom phospholipases A2 (PLA2) share high sequence identities and a conserved structural scaffold, but show important functional differences. Only a few PLA2s have been purified and characterized from coral snake ...
Feeding habits of the Pacific bearded brotula Brotula clarkae Hubbs, 1944 (Ophidiidae) along the Pacific coast of Costa Rica, Central America
(2016)
The present study analyzed the diet composition, ontogenetic shifts and dietary overlap of Brotula clarkae in relation to stage of maturity and sex. Samples were collected from the trawling fishery along the Pacific coast ...
Interacciones celulares en el proceso de invasión de Shigella sp
(Rev Panam Infectol 2009;11(2):56-61, 2009)
Shigella, como agente etiológico de la disentería bacilar, es un
problema importante de salud pública a nivel mundial. Para el establecimiento
de la infección este microorganismo emplea las funciones
celulares y de ...
Some Characteristics of the Annual Precipitation Cycle in Central America and their Relationships with its Surrounding Tropical Oceans
(2002)
Usando 94 estaciones pluviométricas de registro diario, se calcularon los ciclos anuales promedio dominantes en la región centroamericana por medio del análisis de funciones ortogonales empíricas. Esto permitió estimar ...
Comparative social network analysis in a leaf-roosting bat
(2010-10)
Even though social network analysis provides an important tool to characterize and compare societies, no studies have used its analytical applications to characterize patterns of sociality in bats. Here I use social network ...