Artículos Científicos: Recent submissions
Now showing items 21-40 of 563
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Determinación del crecimiento de hongos nematófagosen diversas fuentes de carbono
(Universidad de Costa Rica, 2015-03-11)Las enmiendas orgánicas han sido utilizadas para estimular la acción antagónica de los hongos nematófagos depredadores (HND) del suelo, sin embargo, su uso ha producido resultados inconsistentes en el control de nematodos ... -
First report of the trematode Platynosomum illiciens (Trematoda: Digenea) in Felis catus in Costa Rica, Central America
(Universidad Nacional, Costa Rica, 2021-02-02)This paper is the first description of the trematode P. illiciens found in a domestic feline (Felis catus) in Costa Rica, detected as an incidental finding at necropsy. The cat’s carcass was accepted for a necropsy in the ... -
Comamonas testosteroni as the cause of mortality in embryonated chicken eggs of breeding broiler hens in Costa Rica
(Taylor and Francis Group, 2023-12)Mortality of chicken embryos andfirst-week chickens was reported in a commercial incubatorcompany in Costa Rica. Six 1-day-old Cobb chickens and twenty-four embryonated chickeneggs were examined in the Laboratory of Avian ... -
Primer reporte de parásitos gastrointestinales en Jirafas (Giraffa camelopardalis reticulata) de cautiverio, Guanacaste, Costa Rica.
(Universidad Nacional, Costa Rica, 2018)La jirafa (Giraffa camelopardalis reticulata), es una especie de ungulado poligástrico, originario del continente africano cuyas poblaciones en cautiverio han aumentado de manera exponencial. Las enfermedades parasitarias ... -
Seroprevalence and detection of bovine leukosis virus in semen from breeding bulls in Costa Rica
(Springer Nature, 2023-09-30)Bovine leukemia virus (BLV) causes enzootic bovine leukosis, a persistent infection and the most important neoplastic disease in cattle. It is spread primarily by transferring infected lymphocytes through blood from ... -
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 ... -
Some Morphological and Molecular Aspects of the Life Cycle of Trypansoma cruzi in the Insect Vector
(Inst Oswaldo Cruz, 1999-09)On two occasions I have reviewed the different aspects of the life cycle of Trypanosoma cruzi in the insect vector. In the first article (Zeledón 1987) I presented a detailed historical appraisal of the subject since ... -
Valores de la relación grasa/proteína y nitrógeno ureico en leche de vacas lecheras de la zona norte de Alajuela y Heredia, Costa Rica
(Universidad Nacional, Costa Rica, 2016)Los componentes de la leche brindan una herramienta económica, menos invasiva al monitorear el balance metabólico y la ración suministrada a ganado lechero. Con el fin de determinar valores de grasa, proteína, la ... -
Características de los Egresos de una Unidad Hospitalaria de Atención de Dengue. Costa Rica, 1999–2002
(Universidad Nacional de Costa Rica, 2009)Objetivo: Caracterizar la población de pacientes egresados de la Unidad de Atención al Dengue del Hospital Monseñor Sanabria de Puntarenas. Materiales y Métodos: Se reunieron datos descriptivos del período de enero ... -
Prueba de torniquete como predictiva de sangrado espontáneo en casos de dengue clásico por den-2
(Asociación Costarricense de Salud Pública, 2008)Objetivo: Determinar el valor de la prueba de torniquete como predictiva de sangrado espontáneo en pacientes afectados por dengue clásico en un brote por el virus DEN-2. Materiales y métodos: Se realizó un estudio ... -
Prácticas de diagnóstico y control de parásitos de caninos y felinos en 50 clínicas veterinarias del área metropolitana de Costa Rica*
(Universidad Nacional, Costa Rica, 2008)Con el objetivo de conocer los procedimientos de diagnóstico y recomendaciones para el control de parásitos gastrointestinales (PGI) de caninos y felinos, se entrevistó a 50 médicos veterinarios que laboran en el gran ... -
Reticulopericarditis traumática: reporte de un caso
(Universidad Nacional, Costa Rica, 2016)Resumen: La reticulopericarditis traumática es una enfermedad que puede afectar, severamente, a los bovinos, al producir efectos importantes como reducción en su rendimiento general y descarte temprano. La ingestión ... -
Caracterización clínica y epidemiológica de la población tamizada en el centro de detección temprana de cáncer gástrico, costa rica: período 1996-2015
(Asociación Costarricense de Salud Pública, 2018)Objetivo: Describir características clínicas y epidemiológicas de los pacientes tamizados en el Centro Detección Temprana de Cáncer Gástrico (CDTCG) del Hospital Max Peralta de Cartago. Métodos: Estudio longitudinal ... -
If You're Not Confused, You're Not Paying Attention: Ochrobactrum Is Not Brucella
(American Society for Microbiology, 2023-07-03)Bacteria of the genus Brucella are facultative intracellular parasites that cause brucellosis, a severe animal and human disease. Recently, a group of taxonomists merged the brucellae with the primarily free-living, ... -
Virulent Brucella nosferati infecting Desmodus rotundus has emerging potential due to the broad foraging range of its bat host for humans and wild and domestic animals
(American Society for Microbiology, 2023-07-05)Desmodus rotundus, vampire bats, transmit dangerous infections, and brucellosis is a hazardous zoonotic disease, two adversities that coexist in the subtropical and tropical areas of the American continent. Here, we ... -
Phenotypes controlled by the Brucella abortus two component system BvrR/BvrS are differentially impacted by BvrR phosphorylation
(Frontiers Media S.A, 2023-05-10)Brucella abortus is a zoonotic pathogen whose virulence depends on its ability to survive intracellularly at the endoplasmic reticulum derived compartment. The two-component system BvrR/BvrS (BvrRS) is essential for ... -
Editorial: Insights in infectious agents and disease: 2021
(Frontiers Media S.A, 2023-07-10)The emergence and spread of infectious diseases with pandemic potential occurred trough human history, and were recently reviewed in the section Infectious Agents and Disease by Piret and Boivin (2021). Major pandemics and ... -
The Brucella abortus two-component system response regulator BvrR binds to three DNA regulatory boxes in the upstream region of omp25
(Frontiers Media S.A, 2023-09-14)Brucella abortus is a facultative extracellular-intracellular bacterial zoonotic pathogen worldwide. It is also a major cause of abortion in bovines, generating economic losses. The two-component regulatory system BvrR/BvrS ... -
Detection of Venezuelan Equine Encephalitis Virus from Brain Samples of Equines with Encephalitis
(MDPI, 2023)Alphavirus species are globally distributed zoonoses primarily transmitted by arthropods. The Venezuelan equine encephalitis virus (VEEV) and Eastern equine encephalitis virus (EEEV) are endemic in Costa Rica. This study ... -
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 ...
