Browsing Facultad de Ciencias de la Salud by Title
Now showing items 1-20 of 1439
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15 años sin plaga de gusano barrenador
(Universidad Nacional, Costa Rica, 2016-07-07)Un convenio de cooperación entre los países centroamericanos y los Estados Unidos, marcó el inicio de la erradicación de la mosca Cochiliomya hominivorax más conocida como gusano barrenador. Esta larva causó pérdidas ... -
A bvrR/bvrS Non-Polar Brucella abortus Mutant Confirms the Role of the Two-Component System BvrR/BvrS in Virulence and Membrane Integrity
(MDPI, 2023-08-05)Brucella abortus is a bacterial pathogen causing bovine brucellosis worldwide. This facultative extracellular–intracellular pathogen can be transmitted to humans, leading to a zoonotic disease. The disease remains a public ... -
A census of mammal populations in Punta Leona Private Wildlife Refuge, Costa Rica
(Universidad Nacional, Costa Rica, 2002-09)Population sizes of six mammal species were estimated using the King method during the late dry season (March) of 1996 in the Punta Leona Private Wildlife Refuge, Costa Rica. The white-faced monkey (Cebus capucinus), coati ... -
A cross-sectional survey of gastrointestinal parasites with dispersal stages in feces from Costa Rican dairy calves
(Elsevier B.V, 2010-07-24)A cross-sectional study was carried out to determine the prevalence of gastrointestinal parasites and lungworm nematodes in dairy calves from five different ecoclimatic areas of Costa Rica. Also intensity of infection ... -
A Differential Effect of Indian Ocean Dipole and El Niño on Cholera Dynamics in Bangladesh
(PLoS ONE, 2013-03-29)Background: A stationary (i.e., constant through time) association between El Niño Southern Oscillation (ENSO), the Indian Ocean Dipole (IOD) and epidemics of cholera in Bangladesh has been widely assumed. However, whether ... -
A joint Myxoma in a dog
(Harcourt Publishers Ltd, 2001)Myxomas of the joints are extremely rare in domestic animals, only four cases, all in dogs, having been reported previously. This paper describes a myxoma originating from the synovium of the right radiocarpal joint of ... -
A method to obtain rapid zoosporogenesis of Pythium insidiosum
(Kluwer Academic Publishers, 1988-10)Nine strains of Pythium insidiosum the etiologic agent of pythiosis, were inoculated on 2% water agar plus grass blades and then incubated one day at 25°C, 35°C and 37°C. Sporangium and secondary biflagellate-type zoosporas ... -
A new method for the detection of phospholipase A2 variants: Identification of isozymes in the venoms of newborn and adult Bothrops asper (terciopelo) snakes
(Elsevier B.V, 1988)E. Moreno, A. Alape, M. Sánchez and J. M. Gutiérrez. A new method for the detection of phospholipase A2 variants: identification of isozymes in the venoms of newborn and adult Bothrops asper (terciopelo) snakes. Toxicon ... -
A novel host-adapted strain of Salmonella Typhimurium causes renal disease in olive ridley turtles (Lepidochelys olivacea) in the Pacific
(Springer Nature, 2019-06-27)Salmonella spp. are frequently shed by wildlife including turtles, but S. enterica subsp. enterica serovar Typhimurium or lesions associated with Salmonella are rare in turtles. Between 1996 and 2016, we necropsied 127 ... -
A sensitive blotting system for detection of α-fetoprotein variants with monoclonal and polyclonal antibodies
(Elsevier, 1988-08-19)Human α-fetoprotein (AFP) variants from cord sera were separated by isoelectric focusing in agarose gels under native conditions, transferred to nitrocellulose paper and detected with polyclonal and monoclonal antibodies ... -
A sensor histidine kinase from a plant-endosymbiont bacterium restores the virulence of a mammalian intracellular pathogen
(Elsevier, 2023-11-08)Alphaproteobacteria include organisms living in close association with plants or animals. This interaction relies partly on orthologous two-component regulatory systems (TCS), with sensor and regulator proteins modulating ... -
A Sinorhizobium meliloti and Agrobacterium tumefaciens ExoR ortholog is not crucial for Brucella abortus virulence
(PLOS ONE, 2021-08-13)Brucella is a facultative extracellular-intracellular pathogen that belongs to the Alphaproteo- bacteria class. Precise sensing of environmental changes and a proper response mediated by a gene expression regulatory ... -
A survey on Triatoma dimidiata in an urban area of the province of Heredia, Costa Rica
(Mem Inst Oswaldo Cruz, 2005-10)Triatoma dimidiata has been found in several cities and towns of those countries where the insect is a domestic or peridomestic pest. In Central America, urban infestations occur in the capitals of at least five ... -
A two-component regulatory system playing a critical role in plant pathogens and endosymbionts is present in Brucella abortus and controls cell invasion and virulence
(Blackwell Science, 1998-04-08)Two mutants showing increased sensitivity to polycations and surfactants were obtained by transposon mutagenesis of virulent Brucella abortus 2308 Nal(r). These mutants showed no obvious in vitro growth defects and produced ... -
Abordaje clínico y terapéutico en hatos lecheros y granjas porcinas de diferentes zonas del país entre Mayo y Agosto del 2015
(Universidad Nacional, Costa Rica, 2015)El sector agropecuario es actualmente la quinta actividad económica más importante por su aporte al producto interno bruto. Uno de los impactos más significativos de la globalización lo constituye la necesidad de los ... -
Abordaje de la retención de placenta en bovinos especializados en producción de leche en la zona del Volcán Poás
(Universidad Nacional, Costa Rica, 2013-10-02)El presente trabajo describe una práctica dirigida realizada en buiatría en un periodo de tres meses (julio, agosto y septiembre del 2012). Durante la práctica se realizaron atención de emergencias y visitas programadas ... -
Abordaje diagnóstico y terapéutico de patologías oftalmológicas en caninos con énfasis en la corrección quirúrgica de cataratas oculares, en el Hospital Clínico Veterinario de la Universidad Autónoma de Barcelona y en el Hospital de Especies Menores y Silvestres de la Universidad Nacional de Costa Rica
(Universidad Nacional, Costa Rica, 2014-02-26)Se realizó una práctica dirigida enfocada al abordaje clínico de patologías oculares en caninos en dos centros médicos diferentes: primero en el Servicio de Oftalmología del Hospital Clínico Veterinario de la Universidad ... -
Abordaje para el diagnóstico clínico y patológico de enfermedades hepáticas en perros y gatos.
(Universidad Nacional, Costa Rica, 2015-06-10)La práctica dirigida se realizó en el Hospital de Especies Menores y Silvestres (HEMS), el Laboratorio de Patología y el Laboratorio de Análisis Clínicos de la Escuela de Medicina Veterinaria de la Universidad Nacional ... -
Abordaje y manejo de neoplasias en pequeñas especies realizado en la Universidad Estatal de Colorado y en la Universidad Estatal de Kansas
(Universidad Nacional, Costa Rica., 2016)El presente estudio tuvo como objetivo adquirir conocimientos sobre el diagnóstico, tratamiento y seguimiento de casos oncológicos mediante la observación del abordaje integral de los mismos en el Centro de Cáncer Animal ... -
Absence of IgG antibodies against Schmallenberg virus in ruminant sera (bovine, goat and sheep) collected in Costa Rica between 2012 and 2014.
(Universidad Nacional, Costa Rica, 2017-07)Schmallenberg virus affects ruminants, which causes significant economic losses. The virus is transmitted through vectors of the genus Culicoides; however, other studies do not rule out the possibility of sexual transmission ...
