Browsing by Title Artículos de revistas

Now showing items 5033-5052 of 11553

    • Heat-Shock Induction of Tumor-Derived Danger Signals Mediates Rapid Monocyte Differentiation into Clinically ... 
      Aguilera, Raquel; Saffie, Carlos; Tittarelli, Andrés; González Bergas, Fermín; Ramírez Fernández, Marcos; Reyes, Diego; Pereda, Cristián; Hevia, Daniel; García, Tamara; Salazar, Lorena; Ferreira Vigouroux, Luis Arturo; Hermoso Ramello, Marcela; Mendoza Naranjo, Ariadna; Ferrada, Carlos; Garrido, Paola; López Nitsche, Mercedes; Salazar Onfray, Flavio (AMER ASSOC CANCER RESEARCH, 2011-04-15)
      Purpose: This study characterizes, biologically and clinically, a novel type of dendritic cells (DC) produced in the short term and called tumor antigen–presenting cells (TAPCells). In particular, we identified factors ...
    • Heavy metals in the atmosphere coming from a copper smelter in Chile 
      Romo-Kröger, C. M.; Morales, J. R.; Dinator, M. I.; Llona, F.; Eaton, L. C. (1994)
      The Chilean mine El Teniente is the world's largest underground copper mine. It operates a giant smelter at Caletones (34° 7′ S, 70° 27′ W) and we have found it is the major source of air contamination in the region. In ...
    • Heavy prenatal alcohol exposure and risk of stillbirth and preterm delivery 
      Cornman-Homonoff, Joshua; Kuehn, Devon; Aros, Sofia; Carter, Tonia C.; Conley, Mary R.; Troendle, James; Cassorla Goluboff, Fernando; Mills, James L. (2012)
      We prospectively identified 96 women consuming at least 4 drinks/day during pregnancy by screening 9628 pregnant women. In these women with heavy prenatal alcohol use, there were three stillbirths and one preterm delivery; ...
    • Hedgehog and Fgf signaling pathways regulate the development of tphR-expressing serotonergic raphe neurons ... 
      Teraoka, H.; Russell, C.; Regan, J.; Chandrasekhar, A.; Concha, Miguel L.; Yokoyama, R.; Higashi, K.; Take-uchi, M.; Dong, W.; Hiraga, T.; Holder, N.; Wilson, S. W. (JOHN WILEY & SONS, 2004-09-05)
      Serotonin (5HT) plays major roles in the physiological regulation of many behavioral processes, including sleep, feeding, and mood, but the genetic mechanisms by which serotonergic neurons arise during development are ...
    • Helicobacter pylori -induced inflammation and epigenetic changes during gastric carcinogenesis 
      Valenzuela, Manuel A.; Canales, Jimena; Corvalán, Alejandro H.; Quest, Andrew F. G. (WJG Press, 2015)
      © The Author(s) 2015. Published by Baishideng Publishing Group Inc. All rights reserved. The sequence of events associated with the development of gastric cancer has been described as "the gastric precancerous cascade". ...
    • Helicobacter pylori and gastric cancer: adaptive cellular mechanisms involved in disease progression 
      Díaz, Paula; Valenzuela Valderrama, Manuel; Bravo, Jimena; Quest, Andrew F. G. (Frontiers Media SA, 2018)
      Helicobacter pylori (H. pylori) infection is the major risk factor associated with the development of gastric cancer. The transition from normal mucosa to non-atrophic gastritis, triggered primarily by H. pylori infection, ...
    • Helicobacter pylori cagA + is associated with milder duodenal histological changes in chilean celiac patients 
      Lucero Álvarez, Yalda; Oyarzún, Amaya; O'Ryan Gallardo, Miguel; Valenzuela, Romina; Alcalde Ruíz, Elisa; Arce Fricke, Claudio; Farfán Urzúa, Mauricio; Vergara, Alejandra F.; Sandoval Gajardo, Iván Elías; Méndez, Jocelyn; Carrasco, Jorge; Ossa Alemparte, Juan; Pérez Bravo, Francisco; Castro Lebrero, Magdalena; Araya, Magdalena (Frontiers Media, 2017)
      Background: Mechanisms underlying the high clinical and histological diversity of celiac disease (CD) remain elusive. Helicobacter pylori (Hp) chronically infects gastric and duodenal mucosa and has been associated with ...
    • Helicobacter pylori Exhibits a Fur-Dependent Acid Tolerance Response 
      Valenzuela, Manuel; Albar, Juan P.; Paradela, Alberto; Toledo, Héctor (2011)
      Background: Helicobacter pylori colonizes the acid environment of the gastric mucosa. Like other enteric bacterial pathogens, including Salmonella enterica, which must survive a brief exposure to that environment, H. pylori ...
    • Helicobacter pylori in human health and disease: Mechanisms for local gastric and systemic effects 
      Bravo, Denisse; Hoare, Anilei; Soto, Cristopher; Valenzuela, Manuel A.; Quest, Andrew F. G. (Baishideng Publishing Group Co., Limited, 2018)
      © The Author(s) 2018. Helicobacter pylori (H. pylori ) is present in roughly 50% of the human population worldwide and infection levels reach over 70% in developing countries. The infection has classically been associated ...
    • Helicobacter pylori Induced Phosphatidylinositol-3-OH Kinase/mTOR activation increases hypoxia inducible ... 
      Canales, Jimena; Valenzuela, Manuel; Bravo, Jimena; Cerda Opazo, Paulina; Jorquera, Carla; Toledo, Héctor; Bravo, Denisse; Quest, Andrew F. G. (Frontiers Media S.A., 2017)
      © 2017 Canales, Valenzuela, Bravo, Cerda-Opazo, Jorquera, Toledo, Bravo and Quest. Helicobacter pylori (H. pylori) is a human gastric pathogen that has been linked to the development of several gastric pathologies, such ...
    • Helicobacter pylori infection detected during upper gastrointestinal endoscopy Disminución en la frecuencia ... 
      da Costa, Daniel; Guidotti, Francesca; Cabello, Nicolas; Trigo, Francisco; Contreras, Caterina; Vergara, Francisca; Miranda, Juan Pablo; Montenegro, Cristián; Muñoz, Pablo; Berger, Zoltán (Sociedad Medica de Santiago, 2018)
      © 2018, Sociedad Medica de Santiago. All rights reserved.Background: Helicobacter pylori (HP) is the most widespread chronic human infection worldwide and the most important pathogenic factor of gastric cancer. The calculated ...
    • Helicobacter pylori Infection Is Associated with Decreased Expression of SLC5A8, a Cancer Suppressor Gene, ... 
      Orellana Manzano, Andrea; O'Ryan Gallardo, Miguel; Lagomarcino, Anne; George Carreño, Sergio; Muñoz, Mindy; Mamani Manzano, Nora; Serrano, Carolina; Harris, Paul; Ramilo, Octavio; Mejías, Asunción; Torres Torretti, Juan Pablo; Lucero Álvarez, Yalda; Quest, Andrew F. G. (Frontiers Media, 2016)
      Background: Helicobacter pylori infects half of the world's population and causes gastric cancer in a subset of infected adults. Previous blood microarray findings showed that apparently healthy children, persistently ...
    • Helicobacter pylori outer membrane vesicles and extracellular vesicles from helicobacter pylori-infected ... 
      González, María Fernanda; Paredes Díaz, Paula Andrea; Sandoval Bórquez, Alejandra; Herrera, Daniela; Geoffery Quest, Andrew (MDPI, 2021)
      Extracellular vesicles (EVs) are cell-derived vesicles important in intercellular communication that play an essential role in host-pathogen interactions, spreading pathogen-derived as well as host-derived molecules during ...
    • Helicobacter pylori, clinical, laboratory, and noninvasive biomarkers suggestive of gastric damage in healthy ... 
      Lucero Álvarez, Yalda Cecilia; Lagomarcino, Anne Josephine; Torres Torretti, Juan Pablo; Roessler, Patricia; Mamani Manzano, Nora Herminia; George Carreño, Sergio Andrés; Huerta, Nicole; González, Mónica; O'ryan Gallardo, Miguel Luis (Elsevier, 2021)
      Background: Helicobacter pylori is acquired largely in early childhood, but its association with symptoms and indirect biomarkers of gastric damage in apparently healthy children remains controversial. We aimed to relate ...
    • Helicobacter pylori-induced loss of the inhibitor-of-apoptosis protein survivin is linked to gastritis and ... 
      Valenzuela, Manuel; Pérez Pérez, Guillermo; Corvalán, Alejandro H.; Carrasco, Gonzalo; Urra, Hery; Bravo, Denisse; Toledo, Héctor; Quest, Andrew F. G. (2010)
      Helicobacter pylori infects the human stomach and modifies signaling pathways that affect gastric epithelial cell proliferation and viability. Chronic exposure to this pathogen contributes to the onset of gastric atrophy, ...
    • Helicobacter pylori: A new cardiovascuar risk factor? 
      Martínez Torres, Alejandra; Martínez Gaensly, Miguel (2002)
      There is increasing evidence that certain microbial agents may have an etiopathogenic role in the development of atherothrombosis. Helicobacter pylori, a bacterium that causes peptic ulcer disease, has been suggested as ...
    • Helminthic infection in three native rodent species from a semiarid Mediterranean ecosystem Infecção por ... 
      Yáñez Meza, Andrea; Landaeta Aqueveque, Carlos; Quiroga, Nicol; Botto Mahan, Carezza (Brazilain Coll Veterinary Parasitology, 2019)
      Helminth parasites are still not a well-known component of animal biodiversity. In this study, we describe and compare the endoparasite assemblages of three native rodent species from a semiarid Mediterranean ecosystem. A ...
    • Helpfulness of rectoanal endosonography in diagnosis of sexual abuse in a child 
      Rostión Allel, Carmen Gloria; Galaz, María Isabel; Contador, Mónica; Aldunate, Margarita; Benavides, Sandra; Harz, Carlos (W.B. Saunders, 2016)
      Background: Clinical importance of sexual abuse in children has rapidly expanded in recent years, but despite of it, the lack of medical signs in the vast majority of sexual abuse cases, makes it difficult to assess. Given ...
    • Hemangioendotelioma epitelioide pulmonar. Reporte de un caso 
      Quiroz, Manuel; Undurraga, Alvaro; Moya, Rafael; Fernández, Cristina; Bezares, Katiuska; Linacre, Virginia (Sociedad Médica de Santiago, 2017)
      Epithelioid hemangioendothelioma is a multifocal tumor that rarely metastasizes. It is difficult to diagnose, most often it is an incidental finding in young asymptomatic women. The radiologic pattern is heterogeneous. ...
    • Hematocrit and hemoglobin levels in some chilean rodents from high and low altitude 
      Morrison, P. R.; Kerst, K.; Rosenmann, M. (Springer-Verlag, 1963)
      Hematocrit levels were measured on a series of Chilean mammals including PHYLLOTIS DARWINI RUPESTRIS, AKODON ANDINUS, AKODON BERLEPSCHII, LAGIDIUM VISCACIA and CHINCHILLA BOLIVIANA from high altitude; and PHYLLOTIS D. ...