Listar Microbiología por título
Mostrando ítems 1125-1144 de 1168
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Validación de la técnica QF-PCR para el diagnóstico de cromosomopatías en Costa Rica
(2008)Introducción. Las cromosomopatías autosómicas más frecuentes son las trisomías de los cromosomas 21, 18 y 13. En Costa Rica, el diagnóstico de anomalías cromosómicas fetales y neonatales se realiza solo mediante el ... -
Validación de una técnica de detección para Listeria monocytogenes en leche, embutidos y queso mediante la implementación de PCR punto final basado en los pares de iniciadores LM8, LM13 y LM20
(2019-10)Listeria es un género que se puede ubicar en muchos sitios como suelo, agua no tratada, superficies, etc. En este género sobresale Listeria monocytogenes como un patógeno de transmisión alimentaria de importancia en la ... -
Validation of a GC–MS method for the estimation of dithiocarbamate fungicide residues and safety evaluation of mancozeb in fruits and vegetables
(2014)A sensitive and rugged residue analysis method was validated for the estimation of dithiocarbamate fungicides in a variety of fruit and vegetable matrices. The sample preparation method involved reaction of dithiocarbamates ... -
Varespladib (LY315920) and methyl Varespladib (LY333013) abrogate or delay lethality induced by presynaptically-acting neurotoxic snake venoms
(2020)The phospholipase A2 (PLA2) inhibitor Varespladib (LY315920) and its orally bioavailable prodrug, methyl-Varespladib (LY333013) inhibit PLA2 activity of a wide variety of snake venoms. In this study, the ability of these ... -
Variación estacional de infecciones respiratorias virales en niños hospitalizados
(Revista Mexicana de Pediatría 72 (1) 005-008, 2005-01)Objetivo. Conocer la variación estacional de los virus asociados a las infecciones respiratorias de niños hospitalizados. Material y métodos. En 1,017 niños hospitalizados por una enfermedad respiratoria aguda entre ... -
Variation in dietary intake and body fatness by socioeconomic status among women in the context of Costa Rican nutrition transitions
(2019)The Nutrition Transition model posits that vegetable oils, animal source foods (ASFs) and caloric sweeteners contribute to increases in adiposity and hence body mass index (BMI). Body Mass Index is increasing more rapidly ... -
Vector-borne pathogens in dogs from Costa Rica: First molecular description of Babesia vogeli and Hepatozoon canis infections with a high prevalence of monocytic ehrlichiosis and the manifestations of co-infection
(2014)Infection with canine vector-borne pathogens was evaluated in dogs from four different regions of Costa Rica by PCR. Demographic data, clinical signs, packed cell volume values, and the presence of tick infestation were ... -
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 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 of the neotropical rattlesnake, Crotalus culminatus: Intraspecific variation, neutralization by antivenoms, and immunogenicity in rabbits
(2024)Crotalus culminatus is a medically significant species of rattlesnake in Mexico [1]. While the proteomic composition of its venom has been previously reported for both juvenile and adult specimens, there has been limited ... -
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 ...