Microbiología: Envíos recientes
Mostrando ítems 1-20 de 1169
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Prevalencia, distribución y caracterización molecular de los virus de las encefalitis equinas del este, oeste y venezolana en Costa Rica
(2023)Los virus de las encefalitis equinas del Este (EEEV), Oeste (WEEV) y Venezolana (VEEV) pertenecen al género Alfavirus, familia Togaviridae, son agentes zoonóticos, que ocasionan infecciones importantes desde Norte ... -
Estado del desarrollo de vacunas contra malaria
(2023)El 6 de octubre de 2021 quedó marcado en la historia de la lucha por el control y erradicación de la malaria, ya que la Organización Mundial de la Salud aprobó y recomendó el uso en la población pediátrica de la primera ... -
Providing an in vitro depiction of microglial cells challenged with immunostimulatory extracellular vesicles of Naegleria fowleri
(2024)Naegleria fowleri is the causative agent of primary amoebic meningoencephalitis, a rapid and acute infection of the central nervous system with a fatal outcome in >97% of cases. Due to the infrequent report of cases and ... -
Protocolo nacional para la vigilancia de enfermedades transmitidas por alimentos y agua
(2024)Las enfermedades transmitidas por los alimentos (ETA) constituyen un importante problema de salud a nivel mundial. Son provocadas por el consumo de agua o alimentos contaminados con microorganismos o parásitos, o bien ... -
Pesticide occurrence and water quality assessment from an agriculturally influenced Latin-American tropical region
(2021-01)A monitoring study was carried out in three agriculturally influenced microcatchments in Costa Rica during 2012e2014, for pesticides and water quality parameters. A total of 42 pesticides were analyzed, detecting the ... -
Terapias de modulación de la microbiota intestinal eficaces en la restauración inmunológica en conjunto con terapias anti-retrovirales en pacientes con VIH: Una revisión sistemática
(2023)La inflamación crónica observada en los pacientes con virus de la inmunodeficiencia humana (VIH) es una problemática en el curso de la enfermedad y a pesar del tratamiento anti-retroviral (ART), la persistencia de la ... -
Presencia de los genes de toxigenicidad nheA, nheBy nheC en cepas de Bacillus cereus aisladas de leches deshidratadas en Costa Rica
(2014)La leche en polvo es un producto de alto consumo humano que no precisa de ser conservado en frío, no obstante, diversos microorganismos pueden deteriorarlo. En la población costarricense, también se observa este alto ... -
Degradation of carbofuran by Trametes versicolor in rice husk as a potential lignocellulosic substrate for biomixtures: From mineralization to toxicity reduction
(2014-12)Biopurification systems for the treatment of pesticide-containing wastewaters contain a biomixture constituted by low-cost materials (soil, lignocellulosic substrates and humic components). In particular, the use of ... -
Estudio de asociación entre el gen candidato DISC1 y la psicosis en la población del Valle Central de Costa Rica
(2023-12-07)Disrupted in Schizophrenia 1 (DISC1) es un gen originalmente identificado como afectado por una translocación cromosómica en miembros de una familia escocesa con una alta prevalencia de trastornos psiquiátricos. La ... -
Degradation of selected agrochemicals by the white rot fungus Trametes versicolor
(2014-12-01)Use of agrochemicals is a worldwide practice that exerts an important effect on the environment; therefore the search of approaches for the elimination of such pollutants should be encouraged. The degradation of the ... -
Assessment of acute toxicity of carbofuran in Macrobrachium olfersii (Wiegmann, 1836) at different temperature levels
(2013-07-11)Carbofuran (2,3-dihydro-2,2-dimethyl-7-benzofuranyl methylcarbamate; C12H15NO3) is one of the most toxic carbamate pesticides. For acute toxicity of carbofuran, juveniles of Macrobrachium olfersii were exposed to different ... -
Degradation of UV filters in sewage sludge and 4-MBC in liquid medium by the ligninolytic fungus Trametes versicolor
(2012-08-15)Ultraviolet (UV) filters are xenobiotic compounds that can enter the environment through the liquid effluent of wastewater treatment plants (WWTPs) and through adsorption in the sludge by-product because of their high ... -
Continuous degradation of a mixture of sulfonamides by Trametes versicolor and identification of metabolites from sulfapyridine and sulfathiazole
(2012-04-30)In this study, we assessed the degradation ofthe sulfonamides sulfapyridine (SPY) and sulfathiazole (STZ) by the white-rotfungus Trametes versicolor. Complete degradation was accomplished in fungal cultures at initial ... -
Bioaugmentation of Sewage Sludge with Trametes versicolor in Solid Phase Biopiles Produces Degradation of Pharmaceuticals and Affects Microbial Communities
(2012-10-02)The use of sludge (biosolids) in land application may contribute to the spread of organic micro pollutants as wastewater treatments do not completely remove these compounds. Therefore, the development of alternative strategies ... -
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 ... -
Fungal-Mediated Degradation of Emerging Pollutants in Sewage Sludge
(2012-01-01)This chapter summarizes the novel approaches employed for the removal of emerging pollutants from sludge by means of fungal processes. The first part of the chapter introduces the potential application of fungi in ... -
Hydrocarbon Degrading Microflora in a Tropical fuel-Contaminated Aquifer: Assessing the Feasibility of PAH Bioremediation
(2012-01)An aquifer located within a petroleum processing plant in Moín, Costa Rica, suffers hydrocarbon pollution. This study aimed to determine the ability of indigenous microorganisms from this site to degrade polycyclic ... -
Evaluation of growth in diesel fuel and surfactants production ability by bacteria isolated from fuels in Costa Rica
(2012)A total of 149 bacterial strains previously isolated from fuels stored in Costa Rica were selected in terms of their ability to grow aerobically in diesel and produce bioemulsifier active compounds. The diesel growth was ... -
Butanol production by Clostridium beijerinckii BA101 using cassava flour as fermentation substrate: enzymatic versus chemical pretreatments
(2011)Cassava flour (CF), a cost-effective source of starch, was employed as a substrate for successful acetone butanol-ethanol (ABE) production by batch-fermentation with Clostridium beijerinckii. The effect of temperature, initial ... -
Molecular epidemiology of Clostridium difficile infection in a Brazilian cancer hospital
(2017)Clostridium difficile is a Gram-positive spore forming anaerobic bacterium and the main cause of healthcare-associated diarrhea. This study aimed to perform the phenotypic characterization and molecular typing of Clostridium ...