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Antibodies to Helicobacter pylori in dyspeptic patients, asymptomatic adults, and children from Costa Rica
(1995-06-30)
An enzyme immunoassay for the detection of serum IgG antibodies to H. pylori whole bacterial sonicate was used in a study of dyspeptic adult patients (n=165), apparently healthy blood donors (n=154), and children (n = 66) ...
Algunos aspectos de la epidemiología del cáncer gástrico en Costa Rica
(Direccion General de Estadistica y Censo, 1978)
A pesar del intenso esfuerzo que desde hace años se viene haciendo, la etiología del cáncer continua sin esclarecerse. De un total estimado de cincuenta millones de defunciones anuales en el mundo mas de cinco millones se ...
Composition and Gene Expression of the cag Pathogenicity Island in Helicobacter pylori Strains Isolated from Gastric Carcinoma and Gastritis Patients in Costa Rica
(Infection Immunity 69 (3) 1902-1908, 2001-03)
The composition and in vitro expression of the cag pathogenicity island genes in a group of Helicobacter pylori strains obtained from patients suffering from chronic gastritis-associated dyspepsia (n = 26) or gastric ...
Helicobacter pylori in a Costa Rican dyspeptic patient population
(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 ...
The cag Pathogenicity Island of Helicobacter pylori is Disrupted in the Majority of Patient Isolates from Different Human Populations
(Journal of Clinical Microbiology, 42(11), p. 5302-5308, 2004-11)
The cag pathogenicity island (cag-PAI) is one of the major virulence determinants of Helicobacter pylori. The chromosomal integrity of this island or the lack thereof is speculated to play an important role in the progress ...
X-ray screening seems to reduce gastric cancer mortality by half in a community-controlled trial in Costa Rica
(British Journal of Cancer 97, p. 837 – 843, 2007-10-02)
X-ray screening of gastric cancer is broadly used in Japan, although no controlled trial has proved its effectiveness. This study evaluates the impact of an X-ray screening demonstrative intervention to reduce gastric ...
Epidemiología del cáncer en Costa Rica
(1994)
La presente edición ha sido dedicada al análisis del comportamiento episcopologio del cáncer en Costa Rica. Se incluyen resúmenes de los principales estudios realizados en nuestro país que analizan la relación con los ...
Mortalidad por cáncer de cuello del útero en Costa Rica
(Acta Médica Costarricense 28(1) p 57-61 ., 1981)
Se analizó la mortalidad por cáncer del
cuello del útero en Costa Rica con datos de
los tabulados de las Estadisticas Vitales de
la Dirección General de Estadística y Censos.
Se computarízaron y calcularon las tasas ...
Cáncer de piel en Costa Rica
(1986)
Se describe la incidencia del cáncer de la piel por sexo, edad y localización de todos los casos notificados en el Registro Nacional de Tumores de Costa Rica, en el periodo 1979-1980. El cáncer de piel presentó el 7,6 % ...
Distribution of Open Reading Frames of Plasticity Region of Strain J99 in Helicobacter pylori Strains Isolated from Gastric Carcinoma and Gastritis Patients in Costa Rica
(2000)
The plasticity region of Helicobacter pylori strain J99 is a large chromosomal segment containing 33 strain-specific open reading frames (ORFs) with characteristics of a pathogenicity island. To study the diversity of the ...