Browsing Artículos Científicos by Title
Now showing items 541-560 of 598
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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 ... -
The effect of the dam–calf relationship on serostatus to Neospora caninum on 20 Costa Rican dairy farms
(Universidad Nacional, Costa Rica, 2003-03-31)An epidemiological study was conduced on 20 dairy herds previously diagnosed as seropositive for Neospora caninum. The number of females per farm varies from 41 to 296. All females present on the farms were bled once in ... -
The genus Whiteringia: A review of its traditional uses, phytochemistry and pharmacology
(International Journal of Herbal Medicine, 2017)The genus Witheringia belongs to Solanaceae family. Some of its species are widely used in traditional medicine to cure several disorders such as diabetes, cancer, malaria, helminthic infections, inflammatory disorders, ... -
The horse as a model for translational orthopedic research: examples of studies on the regeneration of cartilage and bone conducted in Costa Rica
(Universidad Nacional, Costa Rica, 2019)The paper provides results published or to be published of long-term in vivo equine studies to evaluate techniques of possible regenerative matrices of cartilage and bone, by means of cell-free implants or ... -
The Impact of Deforestation, Urbanization, and Changing Land Use Patterns on the Ecology of Mosquito and Tick-Borne Diseases in Central America
(MDPI, 2021)Central America is a unique geographical region that connects North and South America, enclosed by the Caribbean Sea to the East, and the Pacific Ocean to the West. This region, encom- passing Belize, Costa Rica, ... -
The impact of overstocking and negative energy balance on quantitative measurement of non-typhoidal Salmonella in periparturient dairy cattle
(Frontiers in Veterinary Science, 2022-02-17)Stressful conditions in animal production facilities may exacerbate the fecal shedding and foodborne transmission of non-typhoidal Salmonella enterica subsp. enterica. Dairy cows are reservoirs of this zoonotic microorganism, ... -
The lipopolysaccharide core of Brucella abortus acts as a shield against innate immunity recognition
(PLoS Pathogens, 2012-05-10)Innate immunity recognizes bacterial molecules bearing pathogen-associated molecular patterns to launch inflammatory responses leading to the activation of adaptive immunity. However, the lipopolysaccharide (LPS) of the ... -
The NS segment of H5N1 avian influenza viruses (AIV) enhances the virulence of an H7N1 AIV in chickens
(Veterinary Research, 2014-01-25)Some outbreaks involving highly pathogenic avian influenza viruses (HPAIV) of subtypes H5 and H7 were caused by avian-to-human transmissions. In nature, different influenza A viruses can reassort leading to new viruses ... -
The one hundred year journey of the genus Brucella (Mayer and Shaw 1920)
(Oxford University Press, 2021-01-01)The genus Brucella, described by Meyer and Shaw in 1920, comprises bacterial pathogens of veterinary and public health relevance. For 36 years, the genus came to include three species that caused brucellosis in livestock ... -
The potential use of Rattus norvegicus (Mammalia, Muridae) in experimental infections with metacercariae of Paragonimus mexicanus (Digenea, Troglotematidae)
(Universidad Nacional, Costa Rica, 2017-01-15)Seven Wistar rats (Rattus norvegicus) were experimentally infected with Paragonimus mexicanus metacercariae, obtained from organs and tissues of freshwater crabs (Brachyura: Pseudothelphusidae) collected from the Caribbean ...