Browsing Microbiología by Title
Now showing items 968-987 of 998
-
Vejigas animales como sitios para oviposición y desarrollo de moscas (Diptera: Cyclorrhapha) en el contexto de una tradición en Barva de Heredia, Costa Rica
(2008-06-01)Se realizó un recuento del número de vejigas dispersas en 15 manzanas del centro urbano de Barva, Heredia, luego de la celebración de las mascaradas, actividad enmarcada en las fiestas patronales de la ciudad. Adicionalmente ... -
Venenos de serpiente: de la investigación al tratamiento
(Acta méd. costarric, Vol. 54 (2), abril-junio, 2012, 2012)El presente trabajo ofrece una breve visión de cómo se ha enfrentado el problema del ofidismo en Costa Rica, y en especial, de cómo la investigación científica y tecnológica ha contribuido a tal fin. Se resumen los orígenes ... -
Venenos de serpientes de la familia Viperidae en América: Bioquímica y fisiopatología.
(2011)Se muestra una perspectiva general de las características bioquímicas de los principales tipos de toxinas presentes en los venenos de vipéridos americanos y la fisiopatología de estos envenenamientos. En la preparación ... -
Venom characterization of the bark scorpion Centruroides edwardsii (Gervais 1843): composition, biochemical activities and in vivo toxicity for potential prey
(2019)In this study, we characterize the venom of Centruroides edwardsii, one of the most abundant scorpions in urban and rural areas of Costa Rica, in terms of its biochemical constituents and their biological activities. C. ... -
Venom characterization of the three species of Ophryacus and proteomic profiling of O. sphenophrys unveils Sphenotoxin, a novel Crotoxin-like heterodimeric β-neurotoxin
(2019)Venoms of the three species of Ophryacus (O. sphenophrys, O. smaragdinus, and O. undulatus), a viperid genus endemic to Mexico, were analyzed for the first time in the present work. The three venoms lacked procoagulant ... -
Venom Composition and Diet of the Cantil Agkistrodon bilineatus howardgloydi (Serpentes: Viperidae)
(1999-12)The southernmost subspecies of the cantil, Agkistrodon bilineatus howardgloydi, occurs in almost all terrestrial habitats of the sector Santa Rosa National Park, in Guanacaste Conservation Area, Costa Rica. We obtained 21 ... -
Venom diversity in the neotropical genus Tityus: implications for antivenom design emerging from molecular and immunochemical analyses across endemic areas of scorpionism
(2020)Scorpions of the Neotropical genus Tityus are responsible for most severe envenomations in the Caribbean, South America, and Lower Central America (LCA). Although Tityus is taxonomically complex, contains high toxin ... -
Venom of Bothrops asper from Mexico and Costa Rica: Intraspecific variation and cross-neutralization by antivenoms
(2012-01)Bothrops asper is the species that induces the highest incidence of snakebite envenomation in southern Mexico, Central America and parts of northern South America. The intraspecies variability in HPLC profile and ... -
Venom of the Coral Snake Micrurus clarki: Proteomic Profile, Toxicity, Immunological Cross-Neutralization, and Characterization of a Three-Finger Toxin
(2016)Micrurus clarki is an uncommon coral snake distributed from the Southeastern Pacific of Costa Rica to Western Colombia, for which no information on its venom could be found in the literature. Using a 'venomics' approach, ... -
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
(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 ... -
Venom variation in Bothrops asper lineages from north-western South America.
(2020)Bothrops asper is a venomous pitviper that is widely distributed and of clinical importance in Mesoamerica and northern South America, where it is responsible for 50–80% of all envenomations by Viperidae species. Previous ... -
Venom, venomics, antivenomics
(2009)Venoms comprise mixtures of peptides and proteins tailored by Natural Selection to act on vital systems of the prey or victim. Here we review our proteomic protocols for uncoiling the composition, immunological profile, ... -
Venomic analysis of the poorly studied desert coral snake, Micrurus tschudii tschudii, supports the 3FTx/PLA2 dichotomy across Micrurus venoms
(2016)The venom proteome of the poorly studied desert coral snake Micrurus tschudii tschudii was unveiled using a venomic approach, which identified ¥38 proteins belonging to only four snake venom protein families. The ... -
Venomic and antivenomic analyses of the Central American coral snake, Micrurus nigrocinctus (Elapidae)
(2011-01-31)The proteome of the venom of Micrurus nigrocinctus (Central American coral snake) was analyzed by a “venomics” approach. Nearly 50 venom peaks were resolved by RP-HPLC, revealing a complex protein composition. Comparative ... -
Venomics and antivenomics of Bothrops erythromelas from five geographic populations within the Caatinga ecoregion of northeastern Brazil
(2015-01-30)The Caatinga lancehead, Bothrops erythromelas, is a medically relevant species, responsible for most of the snakebite accidents in most parts of its distribution range in northeastern Brazil. The spectrum and geographic ... -
Venomics of the Central American Lyre snake Trimorphodon quadruplex (Colubridae: Smith, 1941) from Costa Rica
(2020)Rear-fanged colubrid snakes include hundreds of species globally that possess a Duvernoy's venom gland and often one-several enlarged rear maxillary teeth. We investigated the venom proteome of the Central American Lyre ... -
Venomics of the Duvernoy's gland secretion of the false coral snake Rhinobothryum bovallii (Andersson, 1916) and assessment of venom lethality towards synapsid and diapsid animal models
(2020)The Duvernoy's gland secretory proteome of the false coral snake Rhinobothryum bovallii (Costa Rica), unveiled applying bottom-up venomics, comprises a handful of toxins belonging to only three protein families, three-finger ... -
Venomics of the poorly studied hognosed pitvipers Porthidium arcosae and Porthidium volcanicum
(2021)We report the first proteomics analyses of the venoms of two poorly studied snakes, the Manabi hognosed pitviper Porthidium arcosae endemic to the western coastal province of Manabí (Ecuador), and the Costa Rican hognosed ... -
Venoms of Micrurus coral snakes: evolutionary trends in compositional patterns emerging from proteomic analyses
(2016-11)The application of proteomic tools to the study of snake venoms has led to an impressive growth in the knowledge about their composition (venomics), immunogenicity (antivenomics), and toxicity (toxicovenomics). About ... -
Verificación del punto de corte de la prueba cualitativa para la determinación de sangre oculta y comparación de resultados con una determinación automatizada de hemoglobina en heces
(2020-12-15)El cáncer colorrectal es una enfermedad de alta incidencia en el mundo y Costa Rica no es la excepción, por lo que se han implementado programadas de tamizaje para poblaciones de riesgo. Se busca detectar las pérdidas ...