Now showing items 437-456 of 1169

    • Enfermedad de Chagas en Costa Rica: Estudio comparativo en dos épocas diferentes 

      Chinchilla Carmona, Misael; Castro Castillo, Alfredo; Reyes Lizano, Liliana; Guerrero Bermúdez, Olga Marta; Calderón Arguedas, Ólger; Troyo Rodríguez, Adriana (2006)
      Para actualizar la situación de la Enfermedad de Chagas en Costa Rica se realizó un estudio serológico y epidemiológico parcial en 4 zonas de riesgo en el país. Un total de 1.561 estudiantes de 6 a 12 años fueron estudiados ...
    • Enfermedades causadas por Xylella fastidiosa en Estados Unidos y Costa Rica 

      de la Fuente, Leonardo; Chacón Díaz, Carlos; Almeida, Rodrigo P. P. (2017)
      El texto habla sobre Estados Unidos y su historia en relación a las enfermedades causadas por la bacteria Xylella fastidiosa. Se mencionan los primeros registros de estas enfermedades en la década de 1880 y cómo se descubrió ...
    • ENSO‐Influenced Drought Drives Methane Flux Dynamics in a Tropical Wet Forest Soil 

      Aronson, Emma L.; Dierick, Diego; Botthoff, J. K.; Oberbauer, Steven F.; Zelikova, Tamara Jane; Harmon, Thomas C.; Rundel, Philip W.; Johnson, Robert F.; Swanson, Amanda C.; Pinto Tomás, Adrián A.; Artavia León, Allan; Matarrita Carranza, Bernal; Allen, Michael F. (2019)
      Global atmospheric methane growth rates have wildly fluctuated over the past three decades, which may be driven by the proportion of tropical land surface saturated by water. The El Niño/Southern Oscillation Event (ENSO) ...
    • Enteritis y colitis infecciosa del hombre 

      Mata Jiménez, Leonardo; Simhon Edgar, Alberto (Adel Microbiol Enf Infecc 1(1), 1982)
      Most diarrheas affecting man in developing nations have an: infectious origin, and are transmitted from person to person or indirectly thorough water, food and utensils contaminated with the agents. About two thirds of ...
    • Enterococci as a key parameter for water quality index: Purires River, Costa Rica 

      Chacón Jiménez, Luz María; Arias Mora, Víctor; Barrantes Jiménez, Kenia; Beita Sandí, Wilson; Reyes Lizano, Liliana; Achí Araya, María Rosario (2018)
      This study used the Canadian Water Quality Index (CWI) to characterize water sampled at three points within the Purires River micro basin, Costa Rica. The first sampling point is located in a high zone with domestic ...
    • Envenamiento por mordedura de serpiente en Costa Rica en 1996: Epidemiología y consideraciones clínicas 

      Arroyo Gutiérrez, Olga; Rojas Céspedes, Gustavo; Gutiérrez, José María (1999-12)
      El presente trabajo se efectúa para tener una visión actualizada y completa de las principales características epidemiológicas del envenenamiento por mordedura de serpiente en Costa Rica. Asimismo, se incluyen algunas ...
    • Envenenamientos por mordeduras de serpientes en América Latina y el Caribe: Una visión integral de carácter regional 

      Gutiérrez, José María (2011-01)
      Se analiza la situación de los envenenamientos por mordeduras de serpiente en América Latina y el Caribe, los cuales representan un importante problema de Salud Pública en la región. Esta patología afecta, fundamentalmente, ...
    • Envenomations by Bothrops and Crotalus Snakes Induce the Release of Mitochondrial Alarmins 

      Zornetta, Irene; Caccin, Paola; Fernández Ulate, Julián; Lomonte, Bruno; Gutiérrez, José María; Montecucco, Cesare (PLoS Negl Trop Dis 6(2): e1526, 2012-02-21)
      Skeletal muscle necrosis is a common manifestation of viperid snakebite envenomations. Venoms from snakes of the genus Bothrops, such as that of B. asper, induce muscle tissue damage at the site of venom injection, provoking ...
    • Enzymatic labelling of venom phospholipase A2 toxins 

      Spolaore, Barbara; Fernández Ulate, Julián; Lomonte, Bruno; Massimino, Maria Lina; Tonello, Fiorella (2019)
      Almost all animal venoms contain secretory phospholipases A2 (PLA2s), 14 kDa disulfide-rich enzymes that hydrolyze membrane phospholipids at the sn-2 position, releasing lysophospholipids and fatty acids. These proteins, ...
    • Epidemiological characterization of incident cases of Rickettsia infection in rural areas of Urabá region, Colombia 

      Quintero Vélez, Juan Carlos; Aguirre Acevedo, Daniel Camilo; Rodas González, Juan David; Arboleda, Margarita; Troyo Rodríguez, Adriana; Vega Aguilar, Francisco; Osorio Quintero, Lisardo; Rojas Arbeláez, Carlos (2018-10-31)
      Introduction Most of the studies related to rickettsial infection in Colombia are cross-sectional because of the challenge in conducting prospective studies on infectious disease that may have a difficult diagnosis. Although ...
    • Epidemiology of bovine brucellosis in Costa Rica: Lessons learned from failures in the control of the disease 

      Hernández Mora, Gabriela; Ruiz Villalobos, Nazareth; Bonilla Montoya, Roberto; Romero Zúñiga, Juan José; Jiménez Arias, Julio; González Barrientos, Rocío; Barquero Calvo, Elías; Chacón Díaz, Carlos; Rojas Campos, Norman; Chaves Olarte, Esteban; Guzmán Verri, Caterina; Moreno Robles, Edgardo (2017-08)
      Brucellosis, caused by Brucella abortus is a major disease of cattle and a zoonosis. In order to estimate the bovine brucellosis prevalence in Costa Rica (CR), a total 765 herds (13078 bovines) from six regions of CR were ...
    • Epidemiology of human rotavirus types 1 and 2 as studied by enzyme-linked immunosorbent assay 

      Yolken, Robert H.; Wyatt, Richard G.; Hisses, George; Brandt, Carld; Rodríguez, William J.; Wha Kim, Hyun; Parrot, Robert H.; Urrutia, Juan José; Mata Jiménez, Leonardo; Greenberg, Harry B.; Kapikian, Albert Z.; Chanock, Robert M. (The New England Journal of Medicine 299:1156-1161, 1978-11-23)
      To determine the relative importance of two known serotypes of human rotavirus, we developed an enzyme-linked immunosorbent assay to differentiate serotype-specific rotavirus antigen and antibody. Using this technic, we ...
    • Epidemiology of rapes in Costa Rica: Characterization of victims, perpetrators and circumstances surrounding forced intercourse 

      Cerdas Ávila, Loreley; Arroyo Portilla, Cynthia; Gómez Argüello, Aarón; Holst Schumacher, Ileana; Angulo Ugalde, Yamileth; Vargas Umaña, Marianela; Espinoza Esquivel, Marta; León Montero, Guillermo (2014-09)
      Since the year 2000, the number of rapes in Costa Rica has increased at a rate of 42 cases per year. In 2011, 1786 rape cases were reported to the prosecution offices throughout the country, but only 1081 reports continued ...
    • Epidemiology of rotaviruses in a cohort of 45 Guatemalan Mayan Indian children observed from birth to the age of three years 

      Mata Jiménez, Leonardo; Simhon Edgar, Alberto; Urrutia, Juan José; Kronmal, Richard A.; Fernández, Raúl; García, Bertha (The Journal of Infectious Diseases 148(3) 452-461, 1983-09)
      Chort of 45 children was observed from birth to three years of age in their natural ecosystem to determine patterns of infection, morbidity, and growth. Data from enzyme-linked immunosorbent assay analysis for rotavirus ...
    • Epstein-Barr Virus (EBV) Genome and Expression in Breast Cancer Tissue: Effect of EBV Infection of Breast Cancer Cells on Resistance (Taxol) 

      Arbach, Hratch; Viglasky, Viktor; Lefeu, Florence; Guinebretière, Jean-Marc; Ramírez Mayorga, Vanessa; Bride, Nadège; Boualaga, Nadia; Bauchet, Thomas; Peyrat, Jean-Philippe; Mathieu, Marie-Christine; Mourah, Samia; Podgorniak, Marie-Pierre; Seignerin, Jean-Marie; Takada, Kenzo; Joab, Irène (Journal of Virologia 80(2) p 845-853., 2006-01)
      The Epstein-Barr virus (EBV) has been detected in subsets of breast cancers. In order to elaborate on these observations, we quantified by real-time PCR (Q-PCR) the EBV genome in biopsy specimens of breast cancer tissue ...
    • Equine antibodies to Bothrops asper myotoxin II: isolation from polyvalent antivenom and neutralizing ability. 

      Lomonte, Bruno; Gutiérrez, José María; Carmona Morera, Elena; Rovira Rodríguez, María Elena (1990)
      Equine antibodies to B. riper myotoxin II were isolated from polyvalent antivenom by affinity chromatography. Purified antibodies were among the most acidic serum immunoglobulins, migrating between the ß- and aZ-globulin ...
    • Escherichia Coli enterotoxigénica en niños hospitalziados en Costa Rica 

      Mata Jiménez, Leonardo; Reyes Lizano, Liliana; Ramírez, Jorge A.; Evans, Doyle J. (Revista Médica Hospital Nacional de Niños Dr. Carlos Sáenz Herrera 13(1):23-32, 1978)
      Se estudió la prevalencia de Escherichia coli enterotoxigénica (ECET) productora de toxina labil y/ o estable en niños con y sin diarrea aguda, internados en el Hospital Nacional de Niños entre enero y diciembre de 1976. ...
    • Esporotricosis estado actual del conocimiento 

      Rivera Barquero, Ángelo (2021)
      La esporotricosis, es una enfermedad cosmopolita causada por especies del complejo dimorfo Sporothrix schenckii, sin embargo, se presenta con predominio en la franja intertropical. La esporotricosis ...
    • Estado del desarrollo de vacunas contra malaria 

      Rodríguez Fallas, Adler Moisés (2023)
      El 6 de octubre de 2021 quedó marcado en la historia de la lucha por el control y erradicación de la malaria, ya que la Organización Mundial de la Salud aprobó y recomendó el uso en la población pediátrica de la primera ...