Browsing Artículos Científicos by Title

Now showing items 61-80 of 598

    • Behavioral characteristics of Bos indicus cattle after a superovulatory treatment compared to cows synchronized for estrus 

      Jiménez, A.; Bautista, F.; Galina, C. S.; Rubio, I; ROMERO-ZUÑIGA, JUAN JOSÉ (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 ...

    • Bienestar animal en investigación biomédica 

      Suárez-Esquivel, Marcela; Estrada- König, Sandra (Universidad Nacional, Costa Rica, 2011-01)
      El bienestar animal es un tema controversial que ha tomado especial interés en los últimos años, a la vez, lo coloca en la mira de la investigación biomédica. El uso de animales es de gran provecho para el avance científico ...

    • Biologic and genetic characteristics of Toxoplasma gondii isolates in free-range chickens from Costa Rica, Central America 

      Dubey, J.P.; Su, C.; Vindas Bolaños, Rafael; Sundar, N; Kwok, O.C.; Shen, S.K.; Morales, Juan Alberto; De Oliveira, Jaqueline (Elsevier B.V, 2006-02-23)
      The prevalence of Toxoplasma gondii in free-ranging chickens is a good indicator of the prevalence of T. gondii oocysts in the soil because chickens feed from the ground. The prevalence of T. gondii in 144 free-range ...

    • Blood parameters of the Eastern Pacific green turtle (Chelonia mydas) foraging in the Golfo Dulce, Costa Rica 

      Howell, Priscilla; Meneses, Ana; Suárez Esquivel, Marcela; Chaves, Andrea; Chacón, Didiher; Blanco Peña, Kinndle; Meneses Guevara, Ana; Suárez-Esquivel, Marcela (Springer, 2021)
      The Eastern Pacifc green turtle (EPGT) has been diferentiating from the green turtle and is currently being considered a separate population. In this study, values for hematology and biochemistry of 85 green turtles ...

    • Body distribution of Bothrops asper (terciopelo) snake venom myotoxin and its relationship to pathological changes 

      Gutiérrez, José María; Moreno, Edgardo (Pergamon Press, 1987-10-23)
      E. Moreno and J. M. Gutiérrez. Body distribution of Bothrops asper (terciopelo) snake venom myotoxin and its relationship to pathological changes. Toxicon 26, 403 - 409, 1988. - The distribution of 125I-labelled Bothrops ...

    • Boid inclusion body disease is also a disease of wild Boa Constrictors 

      Alfaro-Alarcón, Alejandro; Hetzel, Udo; Smura, Teemu; Baggio, Francesca; Morales, Juan Alberto; Kipar, Anja; Hepojokib, Jussi (American Society for Microbiology, 2022-09-12)
      Reptarenaviruses cause boid inclusion body disease (BIBD), a poten- tially fatal disease, occurring in captive constrictor snakes boas and pythons worldwide. Classical BIBD, characterized by the formation of pathognomonic ...

    • Bone lesions caused by pythium insidiosum in a horse 

      MENDOZA, L.; ALFARO, A. A.; VILLALOBOS, J. (Oxford University Press, 1987-10-02)
      A 5-year-old, female saddle horse developed a tumoral mass anterolaterally on the metacarpal region of its right front leg. Histopathological study showed hyaline, aseptate, broad hyphae in the sequestered coral-like ...

    • Bovine Leukaemia‐virus infection in Costa Rica 

      BONILLA, J. A.; HERRERO, L.; Jiménez Sánchez, Carlos; Dolz, Gaby; Rodríguez, L.R.; Bolaños, E.; Cortéz Campos, María del Rocio; Moreno, Edgardo (Blackwell Wissenschaft, 1995)
      The geographical distribution of bovine leukaemia‐virus (BLV)‐infected herds in Costa Rica and the isolation of BLV from cases of enzootic bovine leukosis are presented. It was found that BLV is prevalent throughout the ...

    • Breeding soundness evaluation of extensively managed bulls in Costa Rica 

      Pérez, E.; Müller, E.; Soderquist, L; Rodrigues Martínez, H.; Chacón, Jorge (Elsevier, 1999-02-17)
      This paper describes the results of single breeding soundness evaluations (BSE) in 898 Bos indicus, Bos taurus and B. indicus x B. taurus bulls, 1 to 12 yr. old, extensively reared in different climatic regions of Costa ...

    • Brown rats (Rattus norvegicus) in urban ecosystems: are the constraints related to fieldwork a limit to their study? 

      Desvars Larrive, Amélie; Walter, Theresa; Zink, Richard; Walzer, Chris; Baldi, Mario (Springer, 2018-07-05)
      Nowadays, the majority of human beings live in urban ecosystems, with this proportion expected to continue increasing in the future. With the growing importance of urban rat-associated issues (e.g. damages to urban ...

    • Brucella abortus induces the premature death of human neutrophils through the action of Its lipopolysaccharide 

      Guzman-Verri, Caterina; BARQUERO-CALVO, ELIAS; Mora-Cartín, Ricardo; Arce-Gorvel, Vilma; de Diego, Juana L.; Chacón-Díaz, Carlos; Chaves-Olarte, Esteban; Buret, Andre; Gorvel, Jean-Pierre; Moreno, Edgardo (PLoS Pathogens, 2015-05-06)
      Most bacterial infections induce the activation of polymorphonuclear neutrophils (PMNs), enhance their microbicidal function, and promote the survival of these leukocytes for protracted periods of time. Brucella abortus ...

    • Brucella abortus lipopolysaccharide in murine peritoneal macrophages acts as a down-regulator of T cell activation 

      Forestier, Claire; Deleuil, Fabienne; Lapaque, Nicolas; Gorvel, Jean Pierre; Moreno, Edgardo (The American Association of Immunologists, Inc., 2000)
      Macrophages play a central role in host immune responses against pathogens by acting as both professional phagocytic cells and as fully competent APCs. We report here that the LPS from the facultative intracellular ...

    • Brucella abortus ornithine lipids are dispensable outer membrane components devoid of a marked pathogen-associated molecular pattern 

      Palacios-Chaves, Leyre; Conde-Álvarez, Raquel; Gil-Ramírez, Yolanda; Zúñiga-Ripa, Amaia; BARQUERO-CALVO, ELIAS; Chacón-Díaz, Carlos; Chaves-Olarte, Esteban; Arce-Gorvel, Vilma; Gorvel, Jean-Pierre; Moreno, Edgardo; de Miguel, María-Jesús; Grilló, María-Jesús; Moriyon, Ignacio; Iriarte, Maite (PLoS One, 2011-01-07)
      The brucellae are a-Proteobacteria facultative intracellular parasites that cause an important zoonosis. These bacteria escape early detection by innate immunity, an ability associated to the absence of marked pathogen-associated ...

    • Brucella abortus S19 GFP-tagged vaccine allows the serological identification of vaccinated cattle 

      Chacón-Díaz, Carlos; Zabalza-Baranguá, Ana; San Román, Beatriz; Blasco, Jose-María; Iriarte, Maite; Salas-Alfaro, Dariana; Hernández-Mora, Gabriela; BARQUERO-CALVO, ELIAS; Guzman-Verri, Caterina; Chaves-Olarte, Esteban; Grillo, María Jesús; Moreno, Edgardo (PLOS ONE, 2021-11-22)
      Bovine brucellosis induces abortion in cows, produces important economic losses, and causes a widely distributed zoonosis. Its eradication was achieved in several countries after sustained vaccination with the live ...

    • Brucella abortus senses the intracellular environment through the BvrR/Bvrs two-component system, which allows B. abortus to adapt to its replicative nich 

      Altamirano-Silva, Pamela; Meza-Torres, Jazmín; Castillo-Zeledón, Amanda; Ruiz-Villalobos, Nazareth; Zúñiga Pereira, Ana Mariel; Chacón-Díaz, Carlos; Moreno, Edgardo; Guzman-Verri, Caterina; Chaves-Olarte, Esteban (American Society for Microbiology., 2018-01-16)
      Brucella abortus is a facultative extracellular-intracellular pathogen belonging to a group of Alphaproteobacteria that establishes close interactions with animal cells. This bacterium enters host cells in a membrane-bound ...

    • Brucella abortus strain 2308 Wisconsin genome: Importance of the definition of reference strains 

      Castillo-Zeledón, Amanda; Suárez-Esquivel, Marcela; Ruiz-Villalobos, Nazareth; Jiménez-Rojas, César; Roop, R. Martin; Comerci, Diego J.; BARQUERO-CALVO, ELIAS; Chacón-Díaz, Carlos; Caswell, Clayton C.; Baker, Kate; Chaves-Olarte, Esteban; Thomson, Nicholas; Moreno, Edgardo; LETESSON, Jean-Jacques; De Bolle, Xavier; Guzman-Verri, Caterina (Frontiers in Microbiology, 2016-09-29)
      La brucelosis es una enfermedad infecciosa bacteriana que afecta a una amplia gama de mamíferos y una zoonosis desatendida causada por especies del género genéticamente homogéneo Brucella. Como en la mayoría de los estudios ...

    • Brucella abortus transits through the autophagic pathway and replicates in the endoplasmic reticulum of nonprofessional phagocytes 

      PIZARRO CERDA, JAVIER; MERESSE, STEPHANE; PARTON, ROBERT; GISOU, VAN DER; SOLA LANDA, ALBERTO; LOPEZ GOÑI, IGNACIO; GORVEL, JEAN PIERRE; Moreno, Edgardo (American Society for Microbiology, 1988-09-01)
      Brucella abortus is an intracellular pathogen that replicates within a membrane-bounded compartment. In this study, we have examined the intracellular pathway of the virulent B. abortus strain 2308 (S2308) and the attenuated ...

    • Brucella abortus uses a stealthy strategy to avoid activation of the innate immune system during the onset of infection 

      BARQUERO-CALVO, ELIAS; Chaves-Olarte, Esteban; Weiss, David; Guzman-Verri, Caterina; Chacón-Díaz, Carlos; Rucavado, Alexandra; Moriyon, Ignacio; Moreno, Edgardo (PLOS ONE, 2007-07-18)
      Background. To unravel the strategy by which Brucella abortus establishes chronic infections, we explored its early interaction with innate immunity. Methodology/Principal Findings. Brucella did not induce proinflammatory ...

    • Brucella canis is an intracellular pathogen that induces a lower proinflammatory response than smooth zoonotic counterparts 

      Guzman-Verri, Caterina; Chacón-Díaz, Carlos; Altamirano-Silva, Pamela; González-Espinoza, Gabriela; Medina, María-Concepción; Alfaro-Alarcón, Alejandro; Bouza-Mora, Laura; Jiménez-Rojas, César; Wong, Melissa; BARQUERO-CALVO, ELIAS; Rojas, Norman; Moreno, Edgardo; Chaves-Olarte, Esteban (Infection and Immunity, 2015-09-29)
      Canine brucellosis caused by Brucella canis is a disease of dogs and a zoonotic risk. B. canis harbors most of the virulence determinants defined for the genus, but its pathogenic strategy remains unclear since it has not ...

    • Brucella ceti and brucellosis in cetaceans 

      Guzman-Verri, Caterina; González-Barrientos, Rocio; Hernández-Mora, Gabriela; Morales, Juan Alberto; BARQUERO-CALVO, ELIAS; Chaves-Olarte, Esteban; Moreno, Edgardo (Frontiers in cellular and infection microbiology, 2012-02-06)
      Since the first case of brucellosis detected in a dolphin aborted fetus, an increasing number of Brucella ceti isolates has been reported in members of the two suborders of cetaceans: Mysticeti and Odontoceti. Serological ...