Browsing by Author "Valenzuela, Manuel"
Now showing items 1-9 of 9
-
Toledo, Héctor; Valenzuela, Manuel; Rivas, Ana; Jerez, Carlos A. (2002)To determine the existence of an acid stress response in Helicobacter pylori the global changes in the proteins synthesized by the bacterium when subjected to an acid stress were studied. H. pylori ATCC43504 previously ...
-
Toledo Araya, Héctor; Villafaena, Carlos; Valenzuela, Manuel; López Solís, Remigio (WILEY-BLACKWELL, 2012-02)Background: Helicobacter pylori colonizes the gastric mucosa and must survive the acid pH of that environment. Like other enteric bacterial pathogens, including Salmonella enterica, H. pylori develops an acid tolerance ...
-
Valenzuela, Manuel; Cáceres, Aníbal; Almarza, Óscar; Bravo Rodríguez, Denisse; Soto, Sarita; Cerda Arancibia, Óscar Alejandro; Toledo Araya, Héctor (John Wiley & Sons, 2014)Background: Helicobacter pylori is a motile microaerophilic bacterium that colonizes the human stomach. H. pylori infection triggers gastric diseases, such as gastritis, peptic ulcer and gastric cancer. Stomach represents ...
-
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 ...
-
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 ...
-
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, ...
-
Valenzuela, Manuel; Cerda, Oscar; Toledo, Héctor (Society of Biology of Chile, 2003)
-
Wehinger, Sergio; Ortiz, Rina; Díaz, María Inés; Aguirre, Adam; Valenzuela, Manuel; Llanos Vidal, Paola; Mc Master, Christopher; Leyton Campos, Lisette; Quest, Andrew F. G. (Elsevier, 2015)A considerable body of evidence exists implicating high levels of free saturated fatty acids in beta pancreatic cell death, although the molecular mechanisms and the signaling pathways involved have not been clearly ...
-
Fernández, Jaime G.; Rodríguez, Diego A.; Valenzuela, Manuel; Calderon, Claudia; Urzúa, Ulises; Munroe, David; Rosas, Carlos; Lemus, David; Díaz, Natalia; Wright, Mathew C.; Leyton Campos, Lisette; Tapia, Julio C.; Quest, Andrew F. G. (BioMed Central Ltd., 2014)© 2014 Fernández et al.; licensee BioMed Central Ltd.Early in cancer development, tumour cells express vascular endothelial growth factor (VEGF), a secreted molecule that is important in all stages of angiogenesis, an ...