Listar Microbiología por título
Mostrando ítems 539-558 de 1169
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Genetic variation of the Y chromosome in Chibcha-Speaking amerindians of Costa Rica and Panama
(Human Biology 77(1): 71-91, 2005)Genetic variation of the Y chromosome in five Chibchan tribes (Bribri, Cabecar, Guaymi, Huetar, and Teribe) of Costa Rica and Panama was analyzed using six microsatellite loci (DYS 19, DYS389A, DYS389B, DYS390, DYS391, and ... -
Genetic, dietary, and other lifestyle determinants of serum homocysteine levels in young adults in Costa Rica
(2005)Objective: Elevated serum total homocysteine (tHcy) is considered an independent risk factor for cardiovascular disease. The objective of this study was to develop the first-ever information on the prevalence of ... -
Genomic context of the two integrons of ST-111 Pseudomonas aeruginosa AG1: A VIM-2-carrying old-acquaintance and a novel IMP-18-carrying integron
(2021)Pseudomonas aeruginosa is an opportunist and versatile organism responsible for infections mainly in immunocompromised hosts. This pathogen has high intrinsic resistance to most antimicrobials. P. aeruginosa AG1 (PaeAG1) ... -
Geographical variability of the venoms of four populations of Bothrops asper from Panama: Toxicological analysis and neutralization by a polyvalent antivenom
(2017-06)Bothrops asper is the medically most important venomous snake in Central America. In Panama, the country having the highest incidence of snakebites in Latin America, B. asper is widely distributed throughout the country ... -
Global genetic diversity of Aedes aegypti
(2016-11)Mosquitoes, especially Aedes aegypti, are becoming important models for studying invasion biology. We characterized genetic variation at 12 microsatellite loci in 79 populations of Ae. aegypti from 30 countries in six ... -
Group-II phospholipase A2 enzymes
(2015-05)Phospholipase A2 are esterolytic enzymes that catalyze the hydrolysis of 1,2-diacyl-3-sn-glycerophospholipids at the C2 position, resulting in the formation of lysophospholipids and free fatty acid. They constitute one of ... -
Grupo Bacteroides fragilis en heces humanas no diarreicas y su sensibilidad antimicrobiana
(2006-12)Bacteroides es el género de bacterias anaerobias predominante en el colon humano, y sus diez especies son la causa de la mayoría de las infecciones anaerobias. Ya que casi todas las infecciones que causan son endógenas, ... -
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 ... -
Guía para la optimización de procesos de potabilización de agua para uso y consumo doméstico, dirigido a entes operadores en el país
(2021)La gestión del recurso hídrico en nuestro país se da en gran parte a través de las Asociaciones Administradoras de los Sistemas de Acueductos y Alcantarillados, mejor conocidas como ASADAs. Existen más de 1 400 ASADAs en ... -
Hacia una mayor integración de las ciencias naturales y las ciencias sociales: análisis de un caso relacionado con un problema de salud pública
(2009)Se discute la conveniencia de promover una interacción y un diálogo productivo entre las ciencias naturales, las ciencias sociales y las tecnologías. El tema se analiza alrededor del caso de un problema de salud: los ... -
Half a century of research on Bothrops asper venom variation: biological and biomedical implications
(2022)Snake venoms are a complex biological mixture of proteins with or without enzymatic activity, peptides, and nucleotides, among other components. It is produced in specialized secretory glands located in the maxillary region, ... -
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 ... -
Hemorrhage Caused by Snake Venom Metalloproteinases: A Journey of Discovery and Understanding
(2016-03-26)The historical development of discoveries and conceptual frames for understanding the hemorrhagic activity induced by viperid snake venoms and by hemorrhagic metalloproteinases (SVMPs) present in these venoms is reviewed. ... -
Hemorrhage induced by snake venom metalloproteinases: biochemical and biophysical mechanisms involved in microvessel damage
(2005-06-15)Zinc-dependent metalloproteinases are responsible for the hemorrhagic activity characteristic of viperid snake venoms. Snake venom metalloproteinases (SVMPs) are classified in various groups (P-I–IV), according to their ... -
Hemostatic effects induced by Thalassophryne nattereri fish venom: a model of endothelium-mediated blood flow impairment.
(2002-08)Accidents by Thalassophryne nattereri fish venom are characterised by severe local symptoms and signs including pain of fast onset, oedema and necrosis with impaired muscle regeneration. These effects have been related to ... -
Heterogeneidad clonal en epimastigotos de una cepa centroamericana de Trypanosoma cruzi (Kinetoplastida: Trypanosomatidae)
(2002)El fenómeno de heterogeneidad clonal fue evaluado en una cepa centroamericana de Trypanosoma cruzi (San Salvador) en un sistema de cultivo en macrófagos. Cuatro clones denominados Clon 9, Clon 10, Clon 11 y Clon 12 fueron ... -
Heterologous hyperimmune polyclonal antibodies against SARS-COV-2: A broad coverage, affordable, and scalable potential immunotherapy for Covid-19
(2021-09)The emergence and dissemination of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) and the resulting COVID-19 pandemic triggered a global public health crisis. Although several SARS-CoV-2 vaccines have ... -
High Efficacy of Therapeutic Equine Hyperimmune Antibodies Against SARS-CoV-2 Variants of Concern
(2021)SARS-CoV-2 variants of concern show reduced neutralization by vaccine-induced and therapeutic monoclonal antibodies; therefore, treatment alternatives are needed. We tested therapeutic equine polyclonal antibodies (pAbs) ... -
High Prevalence of Multidrug-Resistant Community-Acquired Methicillin-Resistant Staphylococcus aureus at the Largest Veterinary Teaching Hospital in Costa Rica
(2017-08-17)Methicillin-resistant Staphylococcus aureus (MRSA) is a pathogen associated with severe infections in companion animals present in the community, and it is diagnosed in animals admitted to veterinary hospitals. However, ...