Now showing items 607-626 of 1125

    • Health-Related Quality of Life of Older Adults in Costa Rica as Measured by the Short-Form-36 Health Survey 

      Valdivieso Mora, Esmeralda; Ivanisevic, Mirjana; Shaw, Leslie A.; Garnier Villarreal, Mauricio; Green, Zachary D.; Salazar Villanea, Mónica; Moncada Jiménez, José; Johnson, David K. (2018-07)
      Objective: To test the validity of a common measure of health-related quality of life (Short-Form-36 [SF-36]) in cognitively healthy older adults living in rural and urban Costa Rica. Method: Confirmatory factor analysis ...
    • Helicobacter pylori causes Hyperproliferation of the gastric Epithelium: Pre- and Post-Eradication indices of proliferating cell nuclear antigen 

      Brenes Pino, Fernando; Ruiz, Bernardo; Correa, Pelayo; Hunter, Fred; Rhamakrishnan, Thiruvengadam; Fontham, Elizabeth; Shi, Tei-Ying (1993)
      To assess the effect of Helicobacter pylori (HP) eradication on the proliferation of the gastric epithelium by the expression of the proliferating cell nuclear antigen (PCNA). Methods: Alcohol-fixed gastric biopsies ...
    • Helicobacter pylori in a Costa Rican dyspeptic patient population 

      Morera Brenes, Bernal; Sierra Ramos, Rafaela; Barrantes Mesén, Ramiro; Jonasson, J.; Nord, C. E. (1994-03)
      Gastric biopsies from 65 Costa Rican dyspeptic patients were investigated for the presence ofHelicobacter pylori DNA by polymerase chain reaction (PCR) amplification of 16S rRNA sequences. Both frozen and paraffin-embedded ...
    • Helicobater pylori. ¿Es posible la erradicación? 

      Sierra Ramos, Rafaela; Muñoz Calero, Nubia; Sanabria, Marjorie; Mora Zuñiga, Francisco; Quirós, Eber; Brenes Pino, Fernando; Campos Rudín, Manuel; Mora, Walter; Altman Ortiz, Rodrigo (1999)
      Objetivo: Erradicar H. pylori en pacientes dispepticos de una población de alto riesgo de cancer gástrico Poblacion y metodos: A 174 pacientes dispepticos, de una poblacion de alto riesgo de cancer gastric°, se les ...
    • Hendidura esternal completa. Informe de un caso 

      Salas Segura, Donato A.; Caro Cassali, Marco (Revista Costarrricense de Ciencias Médica. 1997; 18 (2): 57, 1997-06)
      La hendidura esternal constituye un trastorno poco frecuente, pertenece al grupo de defectos de fusión de la línea media corporal y que usualmente involucran diafragma, corazón, pericardio y las paredes abdominal y torácica. ...
    • Hepatic metabolites and uric excretion in fructose -1,6- diphosphatase deficiency 

      Velázquez, A.; DeVivo, D. C.; Costin, C.; Shaw, K. N. F.; de Céspedes Montealegre, Carlos (1988)
      There have been a small number of patients reported with inherited disorders of gluconeogenesis. We studied a female patient with fructose-1,6-diphosphatase (FDPase; EC 3.1.3.11) deficiency (McKusick 22970), born of ...
    • Heritability of Age of Onset of Psychosis in Schizophrenia 

      Hare, Elizabeth; Glahn, David C.; Dassori, Albana; Raventós Vorst, Henriette; Nicolini Sánchez, José Humberto; Ontiveros Sánchez de la Barquera, Jose Alfonso; Medina, Rolando; Mendoza Rodríguez, Ricardo; Jerez, Álvaro; Muñoz, Rodrigo; Almasy, Laura; Escamilla, Michael (AMERICAN JOURNAL OF MEDICAL GENETICS PART B, 2009-04)
      Schizophrenia is a genetically complex illness with heterogeneous clinical presentation, including variable age ofonset. In this study, the heritability, or proportion of variation in age of onset of psychotic symptoms due ...
    • Heritability of Cognitive Functions in Families of Successful Cognitive Aging Probands from the Central Valley of Costa Rica 

      Greenwood, Tiffany A.; Beeri, Michal S.; Schmeidler, James; Valerio Aguilar, Daniel; Raventós Vorst, Henriette; Mora Villalobos, Lara; Camacho, Karla; Carrión Baralt, José R.; Angelo, Gary; Almasy, Laura; Sano, Mary; Silverman, Jeremy M. (J Alzheimers Dis. 2011 ; 27(4): 897–907. doi:10.3233/JAD-2011-110782., 2011)
      We sought to identify cognitive phenotypes for family/genetic studies of successful cognitive aging (SCA; maintaining intact cognitive functioning while living to late old age).We administered a battery of neuropsychological ...
    • Herpes simplex virus type 2 antibodies: high prevelence in monogamous women in Costa Rica 

      Oberle, Mark W.; Rosero Bixby, Luis; Lee, Francis K.; Sánchez Braverman, María; Nahmias, Andre J.; Guinan, Mary E. (1989-08)
      We studied the prevalence of antibody to Herpes simplex virus types 1 and 2 (HSV-1 and HSV-2) in 766 randomly selected Costa Rican women 25-59 years of age in a national household survey in 1984-1985. Overall, 97.1% were ...
    • Heterozygous Loss-of-Function Variants in CYP1B1 Predispose to Primary Open-Angle Glaucoma 

      Passuto, Francesca; Chavarría Soley, Gabriela; Mardin, Christian Y.; Michels Rautenstrauss, Karin G.; Ingelman Sundberg, Magnus; Fernández Martínez, Lorena; Weber, Bernhard H. F.; Rautenstrauss, Bernd; Reis, André (2010-01)
      Purpose.: Although primary congenital glaucoma (PCG)–associated CYP1B1 mutations in the heterozygous state have been evaluated for association with primary open-angle glaucoma (POAG) in several small studies, their ...
    • High levels of somatic DNA diversity at the myotonic dystrophy type 1 locus are driven by ultra-frequent expansion and contraction mutations 

      Higham, Catherine; Morales Montero, Fernando; Cobbold, Christina; Haydon, Daniel; Monckton, Darren G. (Human Molecular Genetics, 2012, Vol. 21, No. 11 2450–2463, 2012-02-24)
      Several human genetic diseases are associated with inheriting an abnormally large unstable DNA simple sequence repeat. These sequences mutate, by changing the number of repeats, many times during the lifetime of those ...
    • High life expectancy and reversed socioeconomic gradients of elderly people in Mexico and Costa Rica 

      Rosero Bixby, Luis (2018-01)
      Background: Some existing estimates suggest, controversially, that life expectancy at age 60 (LE60) of Latin American males is exceptionally high. Knowledge of adult mortality in Latin America is often based on unreliable ...
    • High mitochondrial mutation rates estimated from deep-rooting Costa Rican pedigrees 

      Castri, Loredana; Barrantes Mesén, Ramiro; Pereira Reyes, Reinaldo; Luiselli, Donata; Pettener, Davide; Barbujani, Guido; Madrigal, Lorena; Meléndez Obando, Mauricio O.; Villegas Palma, Ramón; Raventós Vorst, Henriette (American Journal of Physical Anthropology 2012 July ; 148(3): 327–333., 2012-07)
      Estimates of mutation rates for the noncoding hypervariable Region I (HVR-I) of mitochondrial DNA (mtDNA) vary widely, depending on whether they are inferred from phylogenies (assuming that molecular evolution is clock-like) ...
    • Hiperreactividad bronquial en relación con factores ambientales 

      Salas Chaves, Pilar; San Gil Caballero, Enrique; Quesada, Flor (1992)
      Se describen los factores ambientales asociados con hiperreactividad bronquial en una muestra de 449 ninos atendidos en la Sala de Nebulizaciones del Hospital Nacional de Ninos "Dr. Carlos Sienz Herrera" por presentar ...
    • Una hipótesis evolutiva sobre la ausencia del antígeno (Di-a) en Amerindios chibchas 

      Barrantes Mesén, Ramiro (1990)
      Se estudiaron 141 tribus amerindias de todo el continente y esquimales de Alaska y Canadá en relación con el grupo sanguíneo Diego. Se encontró que 26 (18%) no presentaron el antígeno Di-a y de estas 20 (77%) pertenecían ...
    • Histeropexia vs Histerectomía vaginal en prolapso urogenital: una revisión sistemática y meta-análisis 

      López Alfaro, Mariana; Moreno Peraza, Katherine Karina; Villalobos Herrera, Mariana (2019)
      Resumen El prolapso de los órganos pélvicos es una condición frecuente en la población femenina que predispone a un deterioro en la calidad de vida. Su incidencia se encuentra en aumento debido al envejecimiento de la ...
    • Histiocitosis de células de Langerhans en hueso parietal 

      Quirós Alpízar, José Luis; Barrantes Monge, Ricardo (Revista Medicina Legal de Costa Rica, vol. 29(1), mar. 2012, 2012-03)
      La Histiocitosis de Células de Langerhans es un grupo de enfermedades con un compromiso mono o multisistémico; presenta manifestaciones clínicas y complicaciones que varían según el tejido afectado y la extensión de la ...
    • La historia del uso del efecto Doppler en Medicina 

      Salas Segura, Donato A. (Acta Académica 2002; 30: 209, 2002-05)
      Se trata de un breve resumen sobre el descubrimiento y uso del efecto Doppler en ultrasonografía médica.