Listar Microbiología por título
Mostrando ítems 793-812 de 1169
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Occurrence of pathogenic microorganisms in small drinking-water systems in Costa Rica
(2022-02-03)This study describes the quality of drinking water sampled over 2 years (2018 and 2019) from 20 ASADAS (Spanish acronym for Administrative Associations for Water and Sewer Systems) in Costa Rica. The analysis included ... -
Omics Meets Biology: Application to the Design and Preclinical Assessment of Antivenoms
(Toxins vol.6:3388-3405, 2014-12-15)Snakebite envenoming represents a neglected tropical disease that has a heavy public health impact worldwide, mostly affecting poor people involved in agricultural activities in Africa, Asia, Latin America and Oceania. A ... -
Ontogenetic changes in the venom of the snake Lachesis muta stenophrys (bushmaster) from Costa Rica
(1990)A comparative study was performed on some enzymatic and toxic activities of venoms collected from newborn, one-year old, two-years old and adult (more than five-years old) specimens of Lachesis muta stenophrys. There was ... -
Ontogenetic variability of Bothrops atrox and Bothrops asper snake venoms from Colombia
(2003-09)The lancehead snakes Bothrops asper and Bothrops atrox inflict 70–90% of the 3000 bites reported every year in Colombia. In this work, the venoms of B. atrox from Meta (Villavicencio, 33 specimens) and B. asper from Antioquia ... -
Ontogenetic variation in the venom of Mexican Jumping Viper (Metlapilcoatlus nummifer)
(2020)The viperid genus Metlapilcoatlus (previously Atropoides) is represented in Mexico by four species: M. olmec, M. mexicanus, M. occidus, and M. nummifer. To date, no studies on their venoms have been reported. Here, we ... -
Optimización de la fermentación de Trichoderma Asperellum para la producción y caracterización de peptaiboles con potencial efecto antimicrobiano contra patógenos alimentarios
(2022)Las Enfermedades Transmitidas por Alimentos (ETA) son causadas por microorganismos y sustancias químicas en diversas matrices alimenticias. Estas enfermedades son una problemática a nivel mundial, ya que afectan la salud ... -
Optimización de un método colorimétrico para la cuantificación de cobre en suero
(1993)Se optimizó y adaptó un método colorimétrico para la determinación de cobre sérico con dibenzilditiocarbamato de zinc. El método presenta linealidad por lo menos hasta 400 ug/dl de cobre. La recuperación promedio obtenida ... -
p-Bromophenacyl bromide modification of Bothrops asper myotoxin II, a lysine-49 phospholipase A2, affects its pharmacological activities
(1993-09)Modification of Bothrops asper myotoxin II, a lysine-49 phospholipase A2 variant, was carried out with p-bromophenacyl bromide. Modified toxin did not show changes in its charge and immunological properties but two of its ... -
Pan-African polyspecific antivenom produced by caprylic acid purification of horse IgG: an alternative to the antivenom crisis in Africa
(2005-06)A polyspecific Pan-African antivenom has been produced from the plasma of horses immunized with a mixture of the venoms of Echis ocellatus, Bitis arietans and Naja nigricollis, the three most medically important snakes in ... -
Papel potencial de Aedes albopictus Skuse en la transmisión de virus dengue (DENV) en una zona de actividad piñera de Costa Rica
(2019)Objetivo. Evaluar, bajo una perspectiva ecológica, la presencia de Aedes albopictus y su infección natural por virus dengue (DENV) en una zona de actividad piñera de Costa Rica. Método: Se colectaron mosquitos adultos en ... -
Paracoccidioidomicosis, consideraciones de una micosis desatendida
(2021-10-08)El presente trabajo corresponde a una revisión bibliográfica sobre el estado del conocimiento de las especies de Paracoccidioides spp. y los cuadros clínicos asociados a este hongo. La revisión inicia con un marco histórico ... -
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 ... -
Partial efficacy of a Brazilian coralsnake antivenom and Varespladib to neutralize distinct toxic effects induced by a sublethal Micrurus dumerilii carinicauda envenoming in rats
(2022)In this work, we reported the efficacy of a combination of Brazilian therapeutic coralsnake antivenom (CAV) and varespladib (phospholipase A2 inhibitor – VPL) in partially neutralizing selected toxic effects of Micrurus ... -
La participación comunitaria como recurso para la prevención del dengue en una comunidad urbana de San José, Costa Rica
(2005-06-01)Se implementó un modelo de participación comunitaria en dos de los cuatro sectores del caserío "La Carpio ",Distrito Uruca,San José, Costa Rica,el cual constituyó el primer poblado del Gran Área Metropolitana de San José ... -
Participatory risk mapping of malaria vector exposure in northern South America using environmental and population data
(2014-03-01)Malaria elimination remains a major public health challenge in many tropical regions, including large areas of northern South America. In this study, we present a new high spatial resolution (90 × 90 m) risk map for Colombia ... -
Pathogenesis of dermonecrosis induced by venom of the spitting cobra, Naja nigricollis: An experimental study in mice
(2016-09-01)The pathogenesis of dermonecrosis induced by the venom of the African spitting cobra Naja nigricollis was investigated in a mouse model. Intradermal injection of venom induced a macroscopic necrotic lesion. Histological ... -
Pathogenesis of myonecrosis induced by coral snake (Micrurus nigrocinctus) venom in mice
(1986-02)The mode by which coral snake (Micrurus nigrocinctus) venom affects skeletal muscle was studied using a combined approach. The venom induced early functional and structural alterations in the plasma membrane of muscle ... -
Pathogenic mechanisms underlying adverse reactions induced by intravenous administration of snake antivenoms
(2013-12-15)Snake antivenoms are formulations of immunoglobulins, or immunoglobulin fragments, purified from the plasma of animals immunized with snake venoms. Their therapeutic success lies in their ability to mitigate the progress ...