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Mostrando ítems 2046-2065 de 4023
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Helicobacter pylori infection induces abnormal expression of pro‑angiogenic gene ANGPT2 and miR‑203a in AGS gastric cell line
(2023-03-06)Helicobacter pylori colonizes the stomach and induces an inflammatory response that can develop into gastric pathologies including cancer. The infection can alter the gastric vasculature by the deregulation of angiogenic ... -
Helicobater pylori. ¿Es posible la erradicación?
(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 ... -
Hemicolectomia radical derecha paparoscopica + disección D3
(2023)El adenocarcinoma de colon es una de las neoplasias malignas más frecuentes, tanto en el ámbito mundial como en Costa Rica, además, presenta una de las morbimortalidades más elevadas en comparación con el resto de las ... -
Hemorrhage Caused by Snake Venom Metalloproteinases: A Journey of Discovery and Understanding
(2016-03-26)The historical development of discoveries and conceptual frames for understanding the hemorrhagic activity induced by viperid snake venoms and by hemorrhagic metalloproteinases (SVMPs) present in these venoms is reviewed. ... -
Hemorrhage induced by snake venom metalloproteinases: biochemical and biophysical mechanisms involved in microvessel damage
(2005-06-15)Zinc-dependent metalloproteinases are responsible for the hemorrhagic activity characteristic of viperid snake venoms. Snake venom metalloproteinases (SVMPs) are classified in various groups (P-I–IV), according to their ... -
Hemostatic effects induced by Thalassophryne nattereri fish venom: a model of endothelium-mediated blood flow impairment.
(2002-08)Accidents by Thalassophryne nattereri fish venom are characterised by severe local symptoms and signs including pain of fast onset, oedema and necrosis with impaired muscle regeneration. These effects have been related to ... -
Hendidura esternal completa. Informe de un caso
(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
(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 ... -
Herida Penetrante de Cuello
(2020-08-07)Revisión Bibliografica sobre el abordaje diagnóstico de las heridas penetrantes de cuello en los servicios de emergencias -
Heritability of Age of Onset of Psychosis in Schizophrenia
(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
(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
(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 ... -
Herpes zóster en paladar: Reporte de caso y revisión de literatura
(2016)El herpes zoster (HZ) se produce por la reactivación del virus latente de la varicela-zoster presente en los ganglios sensitivos del paciente. La causa de la reactivación es desconocida y puede estar asociada con factores ... -
Herramientas predictoras y marcadores serológicos de fuga anastomótica en cirugía colorrectal
(2022-09)La fuga anastomótica es una complicación temida después de una intervención quirúrgica colorrectal que conduce a una morbilidad y mortalidad significativa con estancia hospitalaria prolongada y costos de atención médica ... -
Heterogeneidad clonal en epimastigotos de una cepa centroamericana de Trypanosoma cruzi (Kinetoplastida: Trypanosomatidae)
(2002)El fenómeno de heterogeneidad clonal fue evaluado en una cepa centroamericana de Trypanosoma cruzi (San Salvador) en un sistema de cultivo en macrófagos. Cuatro clones denominados Clon 9, Clon 10, Clon 11 y Clon 12 fueron ... -
Heterologous hyperimmune polyclonal antibodies against SARS-COV-2: A broad coverage, affordable, and scalable potential immunotherapy for Covid-19
(2021-09)The emergence and dissemination of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) and the resulting COVID-19 pandemic triggered a global public health crisis. Although several SARS-CoV-2 vaccines have ... -
Heterozygous Loss-of-Function Variants in CYP1B1 Predispose to Primary Open-Angle Glaucoma
(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 ... -
Hidratación para la actividad física
(Memoria del III Simposio en Ciencias del Ejercicio y la Salud, 1996-10)El conocimiento científico sobre este tema ha evolucionado considerablemente desde la publicación de este manuscrito en 1996; por ejemplo, en ese tiempo se le prestaba poca o ninguna atención a las complicaciones de la ... -
High 18:2 trans fatty acids are associated with increased risk of nonfatal acute myocardial infarction in Costa Rican adults
(2003)Trans-fatty acid intake is associated with coronary heart disease (CHD), but the atherogenic potential of individual trans-fatty acids (FA) from partially hydrogenated oils (18:1 and 18:2) or meat and dairy products (16:1 ...