Microbiología
Recent Submissions
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Porphyromonas spp. have an extensive host range in ill and healthy individuals and an unexpected environmental distribution: a systematic review and meta-analysis
(2020-10-01)Studies on the anaerobic bacteria Porphyromonas, mainly focused on P. gingivalis, have revealed new bacterial structures, metabolic pathways, and physiologic functionalities. Porphyromonas are mainly described as being ... -
Método para la producción de formulaciones inyectables de productos proteicos hemoderivados y productos obtenidos utilizando dicho método
(2011-04-08)The invention relates to a method for producing injectable pharmaceutical formulations of blood-derived protein materials, including the steps of fractioning the source material in a polymer/salt aqueous two-phasesystem ... -
Derived proteins from cry genes of bacillus thuringiensis
(2018-10-15)Combinations of Bacillus thuringiensis (Bt) proteins and nucleic acids encoding these Bt proteins are disclosed. Plants transformed with nucleic acids encoding these Bt proteins are also disclosed -
Comparación entre inmunización pasiva e inmunización activa como procedimiento para controlar los envenenamientos producidos por la serpiente Bothrops asper (terciopelo) en un modelo canino
(2020)Los accidentes ofídicos en animales domésticos son un problema importante para la garantía del bienestar animal en Costa Rica. En este trabajo se comparó la inmunización pasiva por administración de antivenenos con la ... -
Hallazgos histopatológicos asociados a la presencia de arbovirus (chikungunya, zika, dengue, virus del nilo occidental) en murciélagos y aves silvestres en ambientes rurales domiciliares y peridomiciliares
(2020)Los arbovirus son virus transmitidos por vectores artrópodos. En Costa Rica, circulan algunos como el Dengue, Zika, Chikungunya y Nilo occidental. Los arbovirus poseen dos ciclos ecológicos diferentes para lograr mantenerse ... -
Efectos de la oxitetraciclina en un sistema de biopurificación: eliminación de triazinas y organofosforados y variación en la expresión de genes de degradación
(2020)La contaminación que provoca el mal uso de agroquímicos y el manejo inadecuado de sus desechos, puede afectar cuerpos de agua superficiales o subterráneos y grandes volúmenes de suelo. Los plaguicidas organofosforados y ... -
Guía para el estudio de la taxonomía y ecología de Myxomycetes
(2020-06-17)Los Myxomycetes, también llamados hongos mucilaginosos plasmodiales, son un grupo de organismos eucariotas directamente relacionados con los Protozoos, por lo que también se les conoce como Mycetozoa. Están presentes ... -
Perfil epidemiológico y filogenético de Escherichia coli enteropatógena asociadas a gastroenteritis en pacientes pediátricos del Hospital Nacional de Niños “Dr. Carlos Sáenz Herrera”, enero 2015 a setiembre 2019
(2020)Las enfermedades gastrointestinales son una de las principales causas de morbilidad y mortalidad en países en vías de desarrollo. Las infecciones causadas por los diversos patotipos de E. coli diarreogénicas tienen alta ... -
Determinación de la prevalencia del rasgo heterocigoto para hemoglobina S en las unidades de glóbulos rojos empacados utilizadas en el Hospital Nacional de Niños entre los meses de mayo y octubre del 2019
(2020)La drepanocitosis es una enfermedad de relativa alta frecuencia en nuestro país y en el mundo en general, estos pacientes sufren de anemia hemolítica crónica y constantes complicaciones que requieren de frecuentes ... -
New Diet Quality Index of children and adolescents in Costa Rica
(2020)Introduction: There is an increasing interest in the study of indicators of the quality of the total diet through the study of food groups of certain dietary patterns. Objective: Analyze the diet of students of Costa Rica ... -
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 ... -
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 ... -
Toxin B Variants from Clostridium difficile Strains VPI 10463 and NAP1/027 Share Similar Substrate Profile and Cellular Intoxication Kinetics but Use Different Host Cell Entry Factors
(2019)Clostridium difficile induces antibiotic-associated diarrhea due to the release of toxin A (TcdA) and toxin B (TcdB), the latter being its main virulence factor. The epidemic strain NAP1/027 has an increased virulence ... -
Brucella Genetic Variability in Wildlife Marine Mammals Populations Relates to Host Preference and Ocean Distribution
(2017)Intracellular bacterial pathogens probably arose when their ancestor adapted from a free-living environment to an intracellular one, leading to clonal bacteria with smaller genomes and less sources of genetic plasticity. ... -
The gut microbiome of the neotropical beetle Veturius sp. (coleoptera: passalidae): structure, composition and geneticpotential for cellulose degradation
(2020)The global carbon cycle is responsible for maintaining the carbon dioxide and methane concentration in the atmosphere, influencing the weather and ocean acidification. Herbivores play an important role in the carbon cycle. ... -
Cimex lectularius Linnaeus, 1758 (Hemiptera: Cimicidae) in Costa Rica: First Case Report Confirmed by Molecular Methods in Central America
(2020)Cimex lectularius and Cimex hemipterus are the most common species of bedbugs that infest homes. Although case reports decreased substantially by the end of the 20th century, bed bugs, and especially C. lectularius, are ... -
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. ... -
Enzymatic labelling of venom phospholipase A2 toxins
(2019)Almost all animal venoms contain secretory phospholipases A2 (PLA2s), 14 kDa disulfide-rich enzymes that hydrolyze membrane phospholipids at the sn-2 position, releasing lysophospholipids and fatty acids. These proteins, ... -
Novel three-finger toxins from Micrurus dumerilii and Micrurus mipartitus coral snake venoms: phylogenetic relationships and characterization of Clarkitoxin-I-Mdum
(2019)Micrurus mipartitus and M. dumerilii are the most medically important coral snakes in Colombia. Proteomic characterization of their venoms has previously shown that proteins of the three-finger toxin (3FTx) family ... -
A secreted phospholipase A2 induces formation of smooth muscle foam cells which trans-differentiate to macrophage-like state
(2019)Vascular smooth muscle cells (VSMCs) loaded with lipid droplets (LDs) are markers of atherosclerosis. In this disease, inflammatory Group IIA-secreted phospholipase A2s (GIIA sPLA2s) are highly expressed in VSMCs, but ...
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