Listar Microbiología por título
Mostrando ítems 491-510 de 1168
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Evaluation of the neutralizing ability of antivenoms for the treatment of snake bite envenoming in Central America
(1996)De nombreuses envenimations ophidiennes en Amérique centrale sont dues aux crotales (famille des Viperidae) parmi lesquels Bothrops asper est le principal responsable. Quelques accidents sont provoqués par les serpents ... -
Evaluation of the preclinical efficacy of four antivenoms, distributed in sub-Saharan Africa, to neutralize the venom of the carpet viper, Echis ocellatus, from Mali, Cameroon, and Nigeria
(2015-11)Snakebite envenoming causes a heavy toll in sub-Saharan Africa in terms of mortality and sequelae. In the West African savannah, the viperid Echis ocellatus is responsible for the vast majority of bites. In the last decades, ... -
Expansion of Aedes albopictus Skull in Costa Rica
(2010-06-01)A report of the Aedes albopictus expansion in Costa Rica is described as well as its epidemiological analysis. -
Experimental myonecrosis induced by the venoms of South American Micrurus (coral snakes)
(1992)Venoms from 11 taxa of Micrurus (coral snakes) from Brazil and Colombia were tested for myotoxic activity in mice. All venoms, except that of M. surinamensis, induced myotoxicity as judged by the increase in plasma creatine ... -
Experimental pathology of local tissue damage induced by Bothrops asper snake venom
(2009-12-01)Envenomations by Bothrops asper are often associated with complex and severe local pathological manifestations, including edema, blistering, dermonecrosis, myonecrosis and hemorrhage. The pathogenesis of these alterations ... -
Experimental pathophysiology of systemic alterations induced by Bothrops asper snake venom
(2009-12-01)Moderate and severe envenomations by the snake Bothrops asper provoke systemic alterations, such as systemic bleeding, coagulopathy, hypovolemia, hemodynamic instability and shock, and acute renal failure. Systemic hemorrhage ... -
Exploration of immunoglobulin transcriptomes from mice immunized with three-finger toxins and phospholipases A2 from the Central American coral snake, Micrurus nigrocinctus
(2017)Snakebite envenomings represent a neglected public health issue in many parts of the rural tropical world. Animal-derived antivenoms have existed for more than a hundred years and are effective in neutralizing snake venom ... -
Exploring low enthalpy geothermal energy in Costa Rica: A pilot project to improve tourism energy matrix efficiency
(2022-12)Geothermal energy has been an important and stable part of the renewal energy matrix of Costa Rica for more than 25 years. However, the exploitation has been centred in high enthalpy energy for electric power generation, ... -
Exploring the venom of the forest cobra snake: Toxicovenomics and antivenom profiling of Naja melanoleuca
(2017-01-06)A toxicovenomic analysis of the venomof the forest cobra, N. melanoleuca,was performed, revealing the presence of a total of 52 proteins by proteomics analysis. The most abundant proteins belong to the three-finger ... -
Exposure of a Tropical Soil to mg/kg of Oxytetracycline Elicits Hormetic Responses in the Catabolic Activities of its Microbial Community
(2011-04)Many farmers in developing countries protect their crops with oxytetracycline and fertilize their farmlands with manure from animals that received this drug as growth promoter. In this study, a tropical soil was exposed ... -
Exposure of dogs to Rickettsia spp. in Costa Rica: Risk factors for PCR-positive ectoparasites and seropositivity
(2019)Infection of dogs with Rickettsia spp. can result in inapparent, mild, or severe disease. Moreover, common dog ticks and fleas are able to transmit rickettsiae to nearby humans. In this study, the seroprevalence of spotted ... -
Exposure of dogs to spotted fever group rickettsiae in urban sites associated with human rickettsioses in Costa Rica
(2016-07)The zoonotic transmission cycles of Rickettsia rickettsii and other spotted fever group (SFG) rickettsiae in Latin America have usually been associated with rural or sylvatic environments, although domestic dogs can be ... -
Extracellular vesicles in chagas disease: a new passenger for an old disease
(2018-06-01)Extracellular vesicles (EVs) are small lipid vesicles released by prokaryotic and eukaryotic cells containing nucleic acids, proteins, and small metabolites essential for cellular communication. Depending on the targeted ... -
Extracellular vesicles of Trypanosoma cruzi and immune complexes they form with sialylated and non-sialylated IgGs increase small peritoneal macrophage subpopulation and elicit different cytokines profiles
(2023)American trypanosomiasis, or Chagas disease, is caused by the protozoan parasite Trypanosoma cruzi and is characterized by the presence of cardiac or gastrointestinal symptoms in a large number of patients during the chronic ... -
Extracellular vesicles of Trypanosoma cruzi tissue-culture cell-derived trypomastigotes: Induction of physiological changes in non-parasitized culture cells
(2019-02-21)Background: Trypanosoma cruzi is the obligate intracellular parasite that causes Chagas disease. The pathogenesis of this disease is a multifactorial complex process that involves a large number of molecules and particles, ... -
Extracellular vesicles of trypomastigotes of Trypanosoma cruzi induce changes in ubiquitin-related processes, cell-signaling pathways and apoptosis
(2023)Chagas disease is caused by the protozoan parasite Trypanosoma cruzi. The disease has an acute and a chronic phase in which approximately 30% of the chronic patients suffer from heart disease and/or gastrointestinal symptoms. ... -
Extracts of Renealmia alpinia (Rottb.) MAAS Protect against Lethality and Systemic Hemorrhage Induced by Bothrops asper Venom: Insights from a Model with Extract Administration before Venom Injection
(2015)Renealmia alpinia (Rottb.) MAAS, obtained by micropropagation (in vitro) and wild forms have previously been shown to inhibit some toxic activities of Bothrops asper snake venom if preincubated before injection. In this ... -
Exudados y trasudados en el laboratorio clínico: propuesta de un protocolo de análisis
(2023)Introducción: El análisis de líquidos corporales es crucial para el diagnóstico, tratamiento y seguimiento de enfermedades, así como para identificar complicaciones. Estas muestras son valiosas y requieren un manejo ... -
Factores asociados con la incidencia de dengue en Costa Rica
(2011)Objetivo. Determinar el grado de influencia de diferentes variables socioeconómicas, demográficas, geográficas y climáticas con respecto a la incidencia de dengue y dengue hemorrágico (D/DH) en Costa Rica durante el período ... -
Factors associated with adverse reactions induced by caprylic acid-fractionated whole IgG preparations: comparison between horse, sheep and camel IgGs
(2005-12)Caprylic acid purification of IgG, currently used in the manufacture of horse-derived antivenoms, was successfully adapted for the preparation of sheep and camel IgG. Sheep IgG had a molecular mass of approximately 150 ...