Listar Microbiología por título
Mostrando ítems 934-953 de 1169
-
Regional warming and the thermal regimes of American crocodile nests in the Tempisque Basin, Costa Rica
(2016-06-11)Spatial variation in global climate change makes population-specific responses to this enigmatic threat pertinent on a regional scale. Organisms with temperature-dependent sex determination (TSD) potentially possess a ... -
Relación de los polimorfismos VEGFA −2578C/A y COX-2 −1195 G /A y el grado de atrofia gástrica en una población de adultos costarricenses
(2021)Antecedentes: En nuestro país existe una alta incidencia de cáncer gástrico (CG) que se acompaña de una importante mortalidad, se sabe que infección por Helicobacter pylori es un factor importante, condición ... -
Relation of atrophic gastritis with Helicobacter pylori-CagA+ and interleukin-1 polymorphisms
(World Journal Gastroenterol 14(42), 2008-11-14)AIM: To determine the association of Helicobacter pylori (H pylori) CagA+ infection and pro-inflammatory polymorphisms of the genes interleukin (IL)-1RN and IL-1B with the risk of gastric atrophy and peptic ulcers in a ... -
Remoción de parámetros fisicoquímicos y microbiológicos de plantas de tratamiento de aguas residuales del Gran Área Metropolitana, Costa Rica
(2023-01-28)Las aguas residuales inadecuadamente tratadas son un factor de riesgo para la salud pública dado que son un vehículo de diseminación de microorganismos patógenos como virus entéricos. Sin embargo, la circulación de patógenos ... -
Removal of carbamates and detoxification potential in a biomixture: Fungal bioaugmentation versus traditional use
(2017)The use of fungal bioaugmentation represents a promising way to improve the performance of biomixtures for the elimination of pesticides. The ligninolyitc fungus Trametes versicolor was employed for the removal of three ... -
Removal of pesticides and ecotoxicological changes during the simultaneous treatment of triazines and chlorpyrifos in biomixtures
(2017-09)Biopurification systems constitute a biological approach for the treatment of pesticide-containing wastewaters produced in agricultural activities, and contain an active core called biomixture. This work evaluated the ... -
Removal of pharmaceuticals, polybrominated flame retardants and UV-filters from sludge by the fungus Trametes versicolor in bioslurry reactor
(2012-09)Conventional wastewater treatments are inefficient in the removal of many organic pollutants. The pres ence of these contaminants in the final sludge represents a source of environmental pollution due to the increasing ... -
Resistencia a insecticidas en cepas de Aedes aegypti (Diptera: Culicidae) de tres distritos de la Región Pacífico Central de Costa Rica
(2018-12-30)Introducción: Aedes aegypti es vector de virus dengue, chikungunya y Zika en Costa Rica. Su alta incidencia y carencia de vacunas hacen del control vectorial, incluyendo el químico, la única alternativa para disminuir su ... -
Resistencia de Aedes Aegypti (Diptera: Culicidae) a insecticidas organofosforados y piretroides en la localidad de Orotina, Alajuela, Costa Rica
(2019)Objetivos: Determinar la resistencia de una cepa de Aedes. aegypti de Orotina a insecticidas organofosforados (temefós y malatión), y a piretroides (deltametrina, lambda cialotrina y cipermetrina). Métodos: La evaluación ... -
Resurrexit, sicut dixit, alleluia. Snake venomics from a 26-years old polyacrylamide focusing gel
(2012)A 26-year-old dried polyacrylamide gel, cast in presence of an immobilized pH gradient and containing focused proteins from the venoms of a northern black-tailed rattlesnake (Crotalus molossus molossus), and of a western ... -
Una revisión de la literatura acerca de la histoplasmosis: la micosis del viajero
(2021-08)La histoplasmosis es una enfermedad fúngica cosmopolita de tipo granulomatosa sistémica producida por un hongo dimórfico termonutricional conocido como Histoplasma capsulatum. A pesar de que la enfermedad se considera ... -
Rickettsia felis in Ctenocephalides felis from Guatemala and Costa Rica
(2012)Rickettsia felis is an emerging human pathogen associated primarily with the cat flea Ctenocephalides felis.In this study, we investigated the presence of Rickettsia felis in C. felis from Guatemala and Costa Rica. ... -
Role of collagens and perlecan in microvascular stability: exploring the mechanism of capillary vessel damage by snake venom metalloproteinases
(2011-12-08)Hemorrhage is a clinically important manifestation of viperid snakebite envenomings, and is induced by snake venom metalloproteinases (SVMPs). Hemorrhagic and non-hemorrhagic SVMPs hydrolyze some basement membrane (BM) and ... -
Role of cyclooxygenases in oedema-forming activity of bothropic venoms
(2007-04)The venoms of Bothrops asper (BaV) and Bothrops jararaca (BjV), two of the most medically important poisonous snakes of Latin America, cause pronounced oedema in the victims through poorly understood mechanisms. In the ... -
Role of enzymatic activity inmuscle damage and cytotoxicity induced by Bothrops asper Asp49 phospholipase A2 myotoxins: are there additional effector mechanisms involved?
(Peer Journal 2:e569; DOI 10.7717/peerj.569, 2014-09-16)Viperid venoms often contain mixtures of Asp49 and Lys49 PLA2 myotoxin isoforms, relevant to development of myonecrosis. Given their difference in catalytic activity, mechanistic studies on each type require highly ... -
Role of nitric oxide in the local and systemic pathophysiological effects induced by Bothrops asper snake venom in mice
(2006)Objective To assess the role of nitric oxide in the most relevant local and systemic manifestations in mice injected with the venom of the snake Bothrops asper. Mice were pretreated with nitric oxide synthase inhibitors, ... -
Role of the animal model on the pharmacokinetics of equine-derived antivenoms
(2013-08)Antivenom pharmacokinetics has been studied in heterologous models in which the animal species used as immunoglobulin source is different from that used as recipient. In these models, after intravenous administration of ... -
Role of the snake venom toxin jararhagin in proinflammatory pathogenesis: In vitro and in vivo gene expression analysis of the effects of the toxin
(2005-09)To assess the indirect effects of snake venom metalloproteinases (SVMP) on host tissue local necrosis, we investigated the effect of the SVMP jararhagin on the gene expression profiles of human fibroblasts in vitro and ... -
Role of TNF-α, IL-1β and IL-6 in the local tissue damage induced by Bothrops asper snake venom: an experimental assessment in mice
(2005-02)The role of the cytokines TNF-α, IL-1β and IL-6 in the acute local pathological effects induced by Bothrops asper snake venom was assessed in mice. Intramuscular injection of this venom induced increments in IL-1β and IL-6 ...