Browsing Artículos Científicos by Title
Now showing items 532-551 of 598
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Sex influence on the susceptibility of Swiss mice to Trypanosoma cruzi [Influencia del sexo en la susceptibilidad de ratones Swiss a Trypanosoma cruzi]
(Boletin de Malariologia y Salud Ambiental, 2012-10-07)Some authors have reported that female mice are more resistant to Trypanosoma cruzi infections than male mice. In order to test this hypothesis we did a comparative study using four isolates of T. cruzi from Costa Rica in ... -
Short Communication:First report of the trematode Platynosomum illiciens (Trematoda: Digenea) in Felis catus in Costa Rica, Central America
(Universidad Nacional, Costa Rica, 2021-04-12)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 ... -
Snakebites are associated with poverty, weather fluctuations and El Niño
(American Association for the Advancement of Science, 2015-09-11)Snakebites are environmental and occupational health hazards that mainly affect rural populations worldwide. The ectothermic nature of snakes raises the issue of how climate change’s impact on snake ecology could ... -
Sobrevivencia de las fases preparasíticas de nematodos gastrointestinales en bocashi elaborado con estiércol vacuno
(Universidad de Costa Rica, 2015)Sobrevivencia de las fases preparasíticas de nematodos gastrointestinales en bocashi elaborado con estiércol vacuno. El objetivo del presente trabajo fue determinar la sobrevivencia de las fases preparasíticas (huevos ... -
Software Vampp Bovino como instrumento de mediación dialógica entre el sector productivo bovino y la academia
(Revista Universidad en Diálogo, 2019-08-30)El programa informático VAMPP Bovino es un paquete de apoyo a la toma de decisiones en fincas de ganado bovino, bubalino y porcino, originalmente desarrollado en la Universidad de Utrecht (Países Bajos), pero traído a ... -
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 ... -
Spirorchiidiosis (Digenea: Spirorchiidae) and lesions associated with parasites in Caribbean green turtles (Chelonia mydas)
(British Veterinary Association, 2015)Forty-seven nesting green turtles (Chelonia mydas) were examined for parasitic pathogens. Four species of cardiovascular flukes (Digenea: Spirorchiidae), Learedius learedi, Hapalotrema postorchis, Monticellius indicum ... -
Stochastic model to assess bioeconomic impact of PRRS on pig farms in Costa Rica
(Elsevier, 2023-09-24)Despite the economic importance of PRRS and its high prevalence in Costa Rica, there are no studies on the bioeconomic impact of the disease in the country or, even, in Central America. Such studies are essential in finding ... -
Strain diversity of Rickettsia amblyommatis in ticks infesting birds in the North Huetar conservation area of Costa Rica
(Elsevier, 2019-06-10)Although the presence of rickettsial agents in ticks infesting wild birds in Costa Rica has been recently reported, information on strain diversity is limited to selected rickettsial species. In order to mine deeper into ... -
Studying the interaction of neutrophils and glaesserella parasuis indicates a serotype independent benefit from degradation of NETs
(MDPI, 2022-08-04)Glaesserella (G.) parasuis is one of the most important porcine pathogens causing Glaesser’s disease. Neutrophil granulocytes are the major counteracting cell type of the innate immune system, which contribute to the ... -
Subcutaneous spirocercosis in a dog from Costa Rica and first molecular confirmation of Spirocerca lupi in Central America
(Elsevier, 2022-01-31)Spirocerca lupi is the etiological agent of spirocercosis in canids from tropics and subtropics in the world. This parasite can lead to life threatening complications, including the formation of fibro and osteosarcomas. ... -
Supervivencia de los niños nacidos con cardiopatías congénitas en Costa Rica: estudio retrospectivo de la cohorte de nacimientos 2006-2007
(Colegio de Médicos y Cirujanos de Costa Rica, 2018)Justificación: alrededor del mundo las cardiopatías congénitas ocupan las primeras causas de mortalidad infantil. En Costa Rica son el grupo de defectos congénitos más frecuentes, con una prevalencia de 6 x 1000 nacimientos ... -
Suplementación de vacas lecheras en producción con un complejo de vitaminas B recubierto
(Universidad de Costa Rica, 2021-01-01)Introducción. Los requerimientos de vitaminas B en rumiantes son satisfechos por su propia capacidad de síntesis a nivel ruminal; sin embargo, el mejoramiento genético, los avances en nutrición animal y los ... -
Survey of wild mammal hosts of cutaneous Leishmaniasis parasites in Panamá and Costa Rica
(The Japanese Society of Tropical Medicine, 2014-12-06)The eco-epidemiology of American cutaneous leishmaniasis (ACL) is driven by animal reservoir species that are a source of infection for sand flies that serve as vectors infecting humans with Leishmania spp parasites. The ... -
Tail stump sperm defect as a cause of sterility in an indobrasil (Bus indicus) bull
(Blackwell Wissenschafts-Verlag, Berlin, 1998)The first known case of an Indobrasil (BOA indicus) bull, with a frequency of 100% of the specific sperm abnormality, known as ‘tail stump sperm defect’ is reported. A 5-year old bull was located as a breeding sire in ... -
Ten simple rules for aspiring scientists in a low-income country
(Public Library of Science, 2008-05-30)Being a scientist entails a common set of characteristics. Admiring nature and having concern for social issues; possessing a strong academic background, team work abilities, honesty, discipline, skepticism, communication ... -
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 ... -
The current prevalence of asthma, allergic rhinitis, and eczema related symptoms in school-aged children in Costa Rica
(Taylor and Francis Ltd, 2018-04-25)Objective: Asthma prevalence in Costa Rica is among the highest worldwide. We aimed to determine the prevalence of asthma among school-age children in the Central Highland Area of Costa Rica. Methods: Cross-sectional ... -
The differential interaction of brucella and ochrobactrum with innate immunity reveals traits related to the evolution of stealthy pathogens
(PLOS ONE, 2009-06-16)Background: During evolution, innate immunity has been tuned to recognize pathogen-associated molecular patterns. However, some a-Proteobacteria are stealthy intracellular pathogens not readily detected by this system. ... -
The dynamics of latifundia formation
(PLOS ONE, 2013-12-20)Land tenure inequity is a major social problem in developing nations worldwide. In societies, where land is a commodity, inequities in land tenure are associated with gaps in income distribution, poverty and biodiversity ...