Listar Medicina, ciencias biomédicas y salud pública por título
Mostrando ítems 1-20 de 1131
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A case-control study of breast cancer and hormonal contraception in Costa Rica
(1987)By 1981, 11% of married women in Costa Rica ages 20-49 years had used depot-medroxyprogesterone acetate (DMPA) and 58% had used oral contraceptives (OCs). Since 1977, the Costa Rican Ministry of Health has maintained a ... -
A cross-national comparison of 12 biomarkers finds no universal biomarkers of aging among individuals aged 60 and older
(2016)There is uncertainty about whether biological and anthropometric measures that are clinical risk factors for disease are universally associated with chronological age, or whether these correlations vary depending on the ... -
A detailed analysis of open-field habituation and behavioral and neurochemical antidepressant-like effects in postweaning enriched rats
(2009-01-30)Our previous work has shown that male Sprague–Dawley rats reared in social isolation, standard housing and environmental enrichment differ in their spontaneous open-field activity and in some neurobehavioral depressive-like ... -
A DNA pooling based system to detect Escherichia coli virulence factors in fecal and wastewater samples
(2012)The availability of a useful tool for simple and timely detection of the most important virulent varieties of Escherichia coli is indispensable. To this end, bacterial DNA pools which had previously been categorized were ... -
A high performance liquid chromatography method with electrochemical detection of gamma-aminobutyric acid, glutamate and glutamine in rat brain homogenates
(2009)Determination of γ-aminobutyric acid (GABA), glutamate (Glu) and glutamine (Gln) in animal models has been important to understand the normal function and clinical aspects of some neurological diseases. Quantification of ... -
A new look at the determinants of nonnumeric response to desired family size: the case of Costa Rica
(1993)High levels of nonresponse or inappropriate response to items are a persistent concern in survey research because those who do not answer may not be representative of the study population. Thus nonresponse introduces ... -
A novel myosin heavy chain gene in human chromosome 19q13.3
(Gene: 312 p. 165-171, 2003-07)A human myosin heavy chain gene was identified in chromosome 19q13 by computational sequence analysis, RT-PCR and DNA sequencing of the cDNA. The complete cDNA has a length of 6786 bp and comprises 41 exons (40 coding) ... -
A polymorphism in the MSH3 mismatch repair gene is associated with the levels of somatic instability of the expanded CTG repeat in the blood DNA of myotonic dystrophy type 1 patients
(2016-04)Somatic mosaicism of the expanded CTG repeat in myotonic dystrophy type 1 is age-dependent, tissuespecific and expansion-biased, contributing toward the tissue-specificity and progressive nature of the symptoms. Previously, ... -
A Population-based Serosurveillance of Syphilis in Costa Rica
(1991-04)As part of a case-control study to investigate the high incidence of cervical cancer in Costa Rican women, the seroprevalence of the treponematoses, in particular, syphilis was determined. In each age group, women with a ... -
A Protocol to Perform Systemic Lipopolysacharide (LPS) Challenge in Rats
(2019-01-01)Lipopolysaccharide (LPS) is a component of the outer membrane of Gram-negative bacteria. In animals, intraperitoneal administration of LPS, stimulates innate immunity and the production of ... -
A public health approach to the “Food-Malnutrition-Economic Recession” complex
(1988)The authors in this volume disagree as to whether the current economic world recession and its accompanying adjustment policies affect nutrition and health. Based on the data presented throughout this volume and the ... -
A review of Bioinformatics training applied to research in Molecular Medicine, Agriculture and Biodiversity in Costa Rica and Central America
(Briefings in Bioinformatics, 14(5): 661-670, 2013-04-13)Today, Bioinformatics has become a scientific discipline with great relevance for the Molecular Biosciences and for the Omics sciences in general. Although developed countries have progressed with large strides in ... -
A schizophrenia gene locus on chromosome 17q21 in a new set of families of mexican and central american ancestry: evidence from the NIMH genetics of schizophrenia in latino populations study
(Am J Psychiatry 2009;166:442-449, 2009-02-02)The present study investigated a new set of families of Latin American ancestry in order to detect the location of genes predisposing to schizophrenia and related psychotic disorders. Method: A genome-wide scan was performed ... -
A Second Locus for an Axonal Form of Autosomal Recessive Charcot-Marie-Tooth Disease Maps to Chromosome 19q13.3
(American Journal Human Genetic ; 68 (1 p. 269-274, 2001)Autosomal recessive Charcot-Marie-Tooth disease (CMT) represents a heterogeneous group of disorders affecting the peripheral nervous system. The axonal form of the disease is designated as "CMT type 2" (CMT2), and one locus ... -
A video image analyzing system for open-field behavior in the rat focusing on behavioral asymmetries
(1993)A video image analyzing system is presented which measures turning behavior, thigmotactic scanning and locomotion in rats. The system works by analyzing digitized video images obtained by a black/white video camera. Turning ... -
Abdominal angiostrongylosis
(1995)Abdominal angiostrongylosis, caused by Atigiostrongylus costaricensis (Morera and Cespedes, 1971) or Morerastrongylus rostaricensis (Chabaud, 1972), is a parasitic disease characterized by a granulomatous inflammatory ... -
Aberraciones cromosómicas en trabajadoras expuestas a plaguicidas
(Revista de Biología Tropical 52(3) p.623-628, 2004-12-15)The purpose of this work was to determine if the occupational exposure to those pesticides used at banana plantations’ packaging plants produces genetic damage to somatic cells of female workers. Chromosomal aberrations ... -
Ablactación y alimentación de niños en una zona rural de Costa Rica
(1986-09)En nutrición y salud infantil existen diversos aspectos de estudio sobre lactancia natural y prácticas de ablactación (1-8). Uno de ellos se refiere al conocimiento de la respuesta biológica del niño a la calidad y cantidad ...