Browsing by Issue Date Artículos de revistas

Now showing items 1241-1260 of 2801

    • Complete assignments 1H and13C NMR spectral data of four anabaseine derivatives 
      Sobarzo Sánchez, Eduardo; De la Fuente, Julio; Quezada, Elias; Castedo, Luis (2006)
      The anabaseine derivatives 6-methoxy-7-hydroxy-1-(pyridin-3-yl)-3,4- dihydroisoquinoline, 6,7-dimethoxy-1-(pyridin-3-yl)-1,2,3,4- tetrahydroisoqumoline and 6,7-dimethoxy-1-(piperidin-3-yl)-1,2,3,4- tetrahydroisoquinoline ...
    • Solubilization of dodac small unilamellar vesicles by sucrose esters: A fluorescence study 
      Becerra,; De La Nuez,; Zanocco Loyola, Antonio; Lemp Miranda, Else; Günther Sapunar, Germán (Elsevier, 2006)
      A fluorescence method was employed to study the solubilizing interactions of several sucrose esters with Dioctadecyldimethylammonium chloride small unilamellar vesicles. In this paper we studied four different alkyl esters ...
    • Hyperosmotic stress activates p65/RelB NFκB in cultured cardiomyocytes with dichotomic actions on caspase ... 
      Eisner, Verónica; Quiroga, Clara; Criollo Céspedes, Alfredo; Eltit Ortega, José Miguel; Chiong Lay, Mario; Parra, Valentina; Hidalgo, Karla; Toro, Barbra; Díaz Araya, Guillermo; Lavandero González, Sergio (2006)
      NFκB is a participant in the process whereby cells adapt to stress. We have evaluated the activation of NFκB pathway by hyperosmotic stress in cultured cardiomyocytes and its role in the activation of caspase and cell ...
    • Two new hybrid organic/inorganic copper(II)-oxovanadate(V) diphosphonates: [Cu2(phen)2(O3PCH2PO 3)(V2O5)(H2O)]·H ... 
      Ushak, Svetlana; Spodine Spiridonova, Evgenia; Le Fur, Eric; Venegas Yazigi, Diego; Pivan, Jean Yves; Schnelle, Walter; Cardoso-Gil, Raul; Kniep, Rüdiger (2006)
      Full title: Two new hybrid organic/inorganic copper(II)-oxovanadate(V) diphosphonates: [Cu2(phen)2(O3PCH2PO 3)(V2O5)(H2O)]·H 2O and [Cu2(phen)2(O3P(CH 2)3PO3)(V2O5)] ·C3H8. Synthesis, structure, and magnetic properties. ...
    • Dietary fiber, amino acid, fatty acid and tocopherol contents of the edible seaweeds Ulva lactuca and ... 
      Ortiz Viedma, Jaime; Romero, Nalda; Robert Canales, Paz; Araya, Juan Carlos; López Hernández, J.; Bozzo, C.; Navarrete, E.; Osorio, A.; Ríos, A. (ELSEVIER, 2006)
      The nutritional composition of the edible seaweeds Durvillaea antaretica (frond and stem) and dried Ulva lactuca was determined, including the soluble (SDF), insoluble (IDF) and total (TDF) dietary fiber content, amino ...
    • Diferencias de género en el malestar psíquico de estudiantes universitarios. 
      Fritsch Montero, Rosemarie; Escanilla Durán, Ximena; Goldsack Zambrano, Victoria; Grinberg, Amalia; Navarrete, Araceli; Pérez, Alejandra; Rivera, Caterine; González, Isabel; Sepúlveda, Rodrigo Enrique; Rojas Castillo, María Graciela (Universidad de Chile, Facultad de Medicina, Clínica Psiquiátrica Universitaria, 2006)
      Existen numerosos estudios que muestran que los trastornos mentales comunes son enfermedades frecuentes y discapacitantes. Se ha observado que los estudiantes universitarios constituyen un grupo de riesgo. El objetivo ...
    • Cloning and functional characterization of the gene encoding the transcription factor Ace1 in the basidiomycete ... 
      Polanco, Rubén; Canessa, Paulo; Rivas, Alexis; Larrondo, Luis F.; Lobos Camus, Sergio; Vicuña, Rafael (SOC BIOLGIA CHILE, 2006)
      In this report we describe the isolation and characterization of a gene encoding the transcription factor Ace 1 (Activation protein of cup 1 Expression) in the white rot fungus Phanerochaete chrysosporium. Pc-ace 1 encodes ...
    • Combined effects of aldehyde dehydrogenase variants and maternal mitochondrial genes on alcohol consumption 
      Israel Jacard, Yedy; Quintanilla González, María Elena; Sapag, Amalia; Tampier de Jong, Lutske (NATL INST ALCOHOL ABUSE ALCOHOLISM, 2006)
      Two lines of rats bred to differ in their voluntary alcohol consumption-the alcohol-abstaining UChA rats and the alcohol-drinking UChB rats-differ in how effectively toxic acetaldehyde is removed during alcohol metabolism. ...
    • A high-performance liquid chromatography method for determination 2-(n-(N,N,N-trimethyl)-n-alkyl)-5-alkylfuryl ... 
      Morales, Javier; Zanocco Loyola, Antonio; Günther Sapunar, Germán; Lemp Miranda, Else (2006)
      A high-performance liquid chromatography (HPLC) method for the determination of 2-(4-(N,N,N-trimethyl)-butyl)-5-dodecylfuryl bromide (DFTA) in dipalmitoylphophatidil-choline (DPPC) liposome solutions has been developed. ...
    • Synthesis, characterization and in vitro antifungal elevation of novel benzimidazo [1,2-c]quinazolines 
      Insuasty, B.; Torres, H.; Quiroga, J.; Abonia, R.; Rodríguez, R.; Nogueras, M.; López Sánchez, A.; Saitz Barría, Claudio; Alvarez, S. L.; Zacchino, Susana (Sociedad Chilena de Química, 2006)
      The synthesis of a series of new benzimidazo [1,2-c]quinazolines starting from 2-nitrobenzaldehyde and o-phenylendiamine is decsribe. The structure elucidation of the products is based on detailed NMR analysis of experiments ...
    • La actividad de metaloproteinasa-9 se asocia al estrés oxidativo en el síndrome coronario agudo 
      Bittner, Alex; Castro Gálvez, Pablo; Pérez, Osvaldo; Corbalán, Ramón; Alcaíno Olivares, Hernán Alejandro; Troncoso Cotal, Rodrigo Hernán; Chiong Lay, Mario; Díaz Araya, Guillermo; Vicencio, José Miguel; Moraga, Francisco; Zanolli, Diego; Winter, José L.; Zamorano, Juan J.; Lavandero González, Sergio (Sociedad Chilena de Cardiología y Cirugía Cardiovascular, 2006)
      La metaloproteinasa (MMPs) son enzimas proteolíticas que participan en la inestabilidad de la placa aterosclerótica. En cultivos celulares, la actividad de metaloproteinasas-2 y 9 (MMP-2 y MMP-9) aumenta en presencia de ...
    • IGF-1: Un factor de crecimiento con acciones cardiovasculares pleiotrópicas. 
      Contreras Ferrat, Ariel Eduardo; Aránguiz Urroz, Pablo Daniel; Díaz Elizondo, Jessica; Chiong Lay, Mario; Muñoz, Juan Pablo; Parra Ortíz, María Valentina; Ibarra, Cristián; Rojas Rivera, Diego; Troncoso Cotal, Rodrigo; Eisner, Verónica; Salas, Daniela; Rodríguez Villarroel, Andrea Elizabeth; Carrasco Alarcón, Loreto del Pilar; Díaz Araya, Guillermo; Lavandero González, Sergio (Sociedad Chilena de Cardiología y Cirugía Cardiovascular, 2006)
      El factor de crecimiento análogo a insulina tipo 1 (IGF-1) es un péptido relacionado estructural y funcionalmente con insulina que posee efectos mitogénicos y citoprotectores. Sus efectos biológicos dependen de la activación ...
    • Autofagia del cardiomiocito: ¿Un nuevo mecanismo de adaptación al estrés o de muerte celular? 
      Aránguiz Urroz, Pablo Daniel; Contreras Ferrat, Ariel Eduardo; Rojas Rivera, Diego; Troncoso Cotal, Rodrigo Hernán; Marambio Morales, Paola Angélica; Toro, Bárbara; Sanhueza Muñoz, Carlos Joaquín; Pennanen Saavedra, Christian; Díaz Elizondo, Jessica; Parra Ortíz, María Valentina; Chiong Lay, Mario; Díaz Araya, Guillermo; Lavandero González, Sergio (Sociedad Chilena de Cardiología y Cirugía Cardiovascular, 2006)
      Históricamente, la apoptosis y la necrosis han sido consideradas como las dos formas fundamentales de muerte celular. Sin embargo, evidencias recientes sugieren que la muerte celular programada no está confinada sólo a ...
    • Active metabolites and biological activities from Malesherbia auristipulata 
      Erazo, Silvia; Negrete Córdova, Rosa; Zaldívar San Román, María Mercedes; Backhouse Erazo, Nadine; Belmonte, E.; Rojas, Oriana; San Martín, Aníbal; Masson Salaué, Lilia; García, R.; Delporte Vergara, Carla (University of Salerno, 2006)
      The antimicrobial activity of the resinous exudate from the aerial part of Malesherbia auristipulata showed an active mixture against Gram (+) bacteria: S.aureus, B. subtilis and M. flavus and less active against Gram (-) ...
    • Estudio de las modificaciones en proteinas de reineta (Brama australis), sometidas a congelación y ... 
      Abugoch James, Lilian; Quitral Robles, Vilma; Larraín Barth, María Angélica; Vinagre, Julia; Kriukov, Andrei; Chávez, Gloria (Sociedad Latinoamericana de Nutrición, 2006)
      El presente trabajo tuvo como objetivo estudiar las propiedades funcionales y térmicas en carne de reineta (Brama australis) congelada, mediante los análisis de capacidad de retención de agua (CRA), capacidad formadora de ...
    • ESR and electrochemical study of 5-nitroindazole derivatives with antiprotozoal activity 
      Olea Azar, Claudio; Cerecetto, Hugo; Gerpe, Alejandra; González, Mercedes; Arán, Vicente J.; Rigol Olsen, Carolina; Opazo, Lucía (PERGAMON-ELSEVIER SCIENCE LTD, 2006-01)
      The electrochemistry of 3-alkoxy- and 3-hydroxy-1-[(omega-(dialkylamino)alkyl]-5-nitroindazole derivatives were characterized using cyclic voltammetry in DMSO. The nitro reduction process was studied and this was affected ...
    • Hydrogen-bonded supramolecular structures of three related 4-(5-nitro-2-furyl)-1,4-dihydropyridines 
      Quesada, Antonio; Argüello da Silva, Jacqueline; Squella Serrano, Juan; Wardell, James L.; Low, John N.; Glidewell, Christopher (BLACKWELL, 2006-01)
      In ethyl 5-cyano-2,6-dimethyl-4-(5-nitro-2-furyl)-1,4-dihydropyridine-3-carboxylate, C15H15N3O5, the molecules are linked into chains by a single N-H (...) O hydrogen bond. The molecules in diethyl 2,6-dimethyl-4-(5-nitr ...
    • Nanoparticle-mediated local and remote manipulation of protein aggregation 
      Kogan Bocian, Marcelo; Bastus, Neus G.; Amigo, Roger; Grillo-Bosch, Dolors; Araya, Eyleen; Turiel, Antonio; Labarta, Amilcar; Giralt, Ernest; Puntes, Víctor F. (AMER CHEMICAL SOC, 2006-01)
      The local heat delivered by metallic nanoparticles selectively attached to their target can be used as a molecular surgery to safely remove toxic and clogging aggregates. We apply this principle to protein aggregates, in ...
    • Solubilization of dodac small unilamellar vesicles by sucrose esters - A fluorescence study 
      Becerra Pacheco, Natalia Mónica; Nuez, L. R. de la; Zanocco Loyola, Antonio; Lemp Miranda, Else; Günther Sapunar, Germán (ELSEVIER, 2006-01-05)
      A fluorescence method was employed to study the solubilizing interactions of several sucrose esters with Dioctadecyldimethylammonium chloride small unilamellar vesicles. In this paper we studied four different alkyl esters ...
    • Mass spectrometry/gas chromatography-mass spectrometry approach for rapid screening/quantitative determination ... 
      Zúñiga, Carolina; Calderón del Río, Katia Romina; Richter Duk, Pablo; Carrasco, Rodrigo (ELSEVIER, 2006-01-13)
      A new mass spectrometry/gas chromatography-mass spectrometry (MS/GC-MS) approach has been developed for the screening and quantitative determination of perchloroethylene (PERC) in workplace and outdoor air samples, which ...