Facultad de Ciencias de la Salud: Recent submissions
Now showing items 561-580 of 1554
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Behavioral characteristics of Bos indicus cattle after a superovulatory treatment compared to cows synchronized for estrus
(Asian-Australasian Association of Animal Production Societies(AAAP), 2011-10)The intensity and duration of sexual behavior in Bos indicus was assessed through the continuous observation of sexual receptivity. Two groups of cows were formed: only synchronized (n = 50) and other group further ... -
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 ... -
Meta-análisis sobre el efecto del ejercicio acuático en personas con fibromialgia
(Universidad Nacional, Costa Rica, 2009)Investiga si los programas de ejercicio acuático son eficaces en provocar una mejoría en el estado de salud física y mental en persona con fibromialgia, además determina si esos programas favorecen en la reducción de los ... -
Módulos de capacitación para uso OJS Avanzado
(Vicerrectoría de Investigación, 2021-11-18)El siguiente curso, busca propiciar un manejo avanzado de la herramienta OJS para homogeneizar los conocimientos de los equipos de revista y elevar su rado de implementación para aprovechar el máximo potencial de la ... -
Bactericidal and Antiendotoxic Properties of Short Cationic Peptides Derived from a Snake Venom Lys49 Phospholipase A2
(American Society for Microbiology, 2005-04)The activities of short synthetic, nonhemolytic peptides derived from the C-terminal region of myotoxin 11, a catalytically inactive phospholipase A(2) homologue present in the venom of the snake Bothrops asper, have been ... -
Bactericidal activity of Lys49 and Asp49 myotoxic phospholipases A2 from Bothrops asper snake venom Synthetic Lys49 myotoxin II-(115−129)-peptide identifies its bactericidal region
(FEBS, 1998)Mammalian group-II phospholipases A2 (PLA2) of inflammatory fluids display bactericidal properties, which are dependent on their enzymatic activity. This study shows that myotoxins II (Lys49) and III (Asp49), two group-II ... -
Assessment of sperm morphology in Zebu bulls, under field conditions in the tropics
(Blackwell, 2001)Sperm morphology was studied in 302 extensively managed Zebu bulls (aged 1.5-9 years), classified as sound (n = 166) or unsound (n = 136) for breeding, under field conditions in the dry tropics of Costa Rica. Single semen ... -
Backyard Chicken Flocks Pose a Disease Risk for Neotropic Birds in Costa Rica
(American Association of Avian Pathologists, 2008)Pathogens of free-ranging chickens create a risk of disease for wild birds, some of which migrate to the United States, as well as potential economic losses for resource-poor farmers. Free-roaming backyard chickens are ... -
Antimicrobial activity of the heliangolide chromolaenide and related sesquiterpene lactones
(Pergamon Press, 1980)Some sesquiterpene lactones are known to exhibit antimicrobial activity [1, 2]. More recently, it has been noted that the pseudoguainolide carpesiolin inhibits the growth of Xanthomonas oryzae [3]. Here, we report on ... -
Antimicrobial activity of myotoxic phospholipases A2 from crotalid snake venoms and synthetic peptide variants derived from their C-terminal region
(Elsevier, 2005)A short peptide derived from the C-terminal region of Bothrops asper myotoxin II, a Lys49 phospholipase A2 (PLA2), was previously found to reproduce the bactericidal activity of its parent molecule. In this study, a panel ... -
Antigenic relationship between the animal and human pathogen Pythium insidiosum and nonpathogenic Pythium species
(American Society for Microbiology, 1987)Identification of the newly named pathogenic oomycete Pythium insidiosum and its differentiation from other Pythium species by morphologic criteria alone can be difficult and time-consuming. Antigenic anaysis by ... -
Análisis descriptivo de las condiciones de conservación de un sitio de forrajeo de la tortuga verde del Pacífico (Chelonia mydas agassizii, Testudines: Chelonioidea) en el Golfo Dulce, Costa Rica; se toma como base el estado de salud de la tortuga y el hallazgo de plaguicidas en el ambiente / Descriptive analysis of the conservation conditions of a foraging site for the Pacific green turtle (Chelonia mydas agassizii, Testudines: Chelonioidea) in Golfo Dulce, Costa Rica, based on the turtle’s state of health and the discovery of pesticides in the environment
(Universidad Nacional, Costa Rica, 2015-12-11)El desarrollo de estrategias de manejo, que permitan la conservación de las tortugas marinas y del Golfo Dulce, requiere de insumos relacionados con la condición actual de la salud de estas poblaciones. Diversos estudios ... -
An electrophoretic study on phospholipase A2 isoenzymes in the venoms of Central American crotaline snakes
(Elsevier, 1992)The number and isoelectric points of phospholipase A2 isoenzymes were studied in the venoms of 12 Central American crotaline snakes of the genera Bothrops, Crotalus, Lachesis and Agkistrodon. The study was carried out by ... -
Aerobic bacterial flora of nesting green turtles (Chelonia mydas) from Tortuguero National Park, Costa Rica
(American Association of Zoo Veterinarians, 2006)Bacteriological examination of 70 nesting green turtles (Chelonia mydas) from Tortuguero National Park, Costa Rica was performed to investigate nasal and cloacal aerobic bacteria. A total of 325 bacterial isolates were ... -
Additive genetic and heterosis effects for milk fever in a population of Jersey, Holstein × Jersey, and Holstein cattle under grazing conditions
(FASS Inc. and Elsevier Inc., 2018-10)The aim of this study was to estimate additive genetic and heterosis effects for milk fever (MF) in Costa Rican dairy cattle. A farm-based management information software was used to collect 223,783 parity records between ... -
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 ... -
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 ... -
Human neutrophils are resistant to Clostridioides difficile toxin B
(Elsevier, 2022-03-21)Objective: The main objective of this study was to evaluate the glucosyltransferase activity of C. difficile TcdB on the activity of human PMNs. Methods: To better understand the interaction between PMNs and TcdB, PMNs ... -
Platelet depletion does not alter the course of Brucella abortus infection in vivo
(Elsevier, 2022-02-23)Brucellosis is a bacterial disease of animals and a zoonotic infection. Thrombocytopenia is a common outcome in long-lasting brucellosis in humans. Likewise, ex vivo experiments have shown that platelets may play a role ... -
Determination of streptomycin and doxycycline using LC/MS towards an effective treatment against an experimental Brucella abortus infection in mice
(Elsevier B.V, 2022-02-25)Herein we described a versatile liquid chromatographic method for detection and quantification of the total levels of two antimicrobials [i.e., streptomycin (STM) and doxycycline (DOX)], in mice plasma and selected tissues, ...