Browsing by Title Artículos de revistas

Now showing items 433-452 of 2801

    • Chitosan-based nanoparticles for Intracellular delivery of ISAV fusion protein cDNA into melanoma cells: a ... 
      Robles Planells, Claudia; Sánchez-Guerrero, Giselle; Barrera Ávalos, Carlos; Matiacevich, Silvia; Rojo, Leonel E.; Pavéz, Jorge; Salas Huenuleo, Edison; Kogan, Marcelo J.; Escobar Álvarez, Alejandro; Milla, Luis A.; Fernández, Ricardo; Imarai, Mónica; Spencer, Eugenio; Huidobro Toro, Juan Pablo; Acuña Castillo, Claudio (Hindawi, 2020)
      Oncolytic virus therapy has been tested against cancer in preclinical models and clinical assays. Current evidence shows that viruses induce cytopathic effects associated with fusogenic protein-mediated syncytium formation ...
    • Cholinergic transmission in vas deferens 
      Bustos, E.; Miranda, H.; Paeile, C. (1983)
      1. 1. Prazosin, haloperidol, propranolol or timolol had no effect on the electrically evoked muscular twitch. 2. 2. Atropine was able to antagonize competitively acetylcholine (pA2 = 9.29 ± 0.30). 3. 3. The muscular twitch ...
    • Chromatin from two classes of platyhelminthes display both protist H1 and higher eukaryote core histones 
      Galindo, Mario A.; Varela, Nelson; Espinoza, Ingrid; Toro, Gabriela Cecilia; Hellman, Ulf; Wernstedt, Christer; Galanti Garrone, Norbel (2004)
      Histones from the parasitic platyhelminthes, Echinococcus granulosus and Fasciola hepatica, were systematically characterized. Core histones H2A, H2B, H3 and H4, which were identified on the basis of amino acid sequencing ...
    • Chronic exposure of HepG2 cells to excess copper results in depletion of glutathione and induction of ... 
      Jiménez T., Inés; Aracena Stiven, Paula; Letelier Muñoz, María Eugenia; Navarro, P.; Speisky Cosoy, Hernán (PERGAMON-ELSEVIER SCIENCE LTD, 2002-04)
      Metallothionein (MT) and reduced glutathione (GSH) play an important role in the intracellular handling of copper by preventing the generation and favouring the removal of copper-derived free radicals. The present study ...
    • Chronic intermittent cold stress activates ovarian sympathetic nerves and modifies ovarian follicular ... 
      Dorfman Pessó, Mauricio Daniel; Arancibia, S.; Fiedler Temer, Jenny; Lara Peñaloza, Hernán (SOC STUDY REPRODUCTION, 2003-06)
      We studied the effects of a chronic intermittent cold stress regime on sympathetic nerve activation and ovarian physiology. This paradigm (4degreesC for 3 h/day, Monday-Friday, for 3 or 4 wk) does not affect basal plasma ...
    • Chronic restraint stress produces sex-specific behavioral and molecular outcomes in the dorsal and ventral ... 
      Olave Olave, Felipe; Aguayo, Felipe; Román Albasini, Luciano; Corrales Ibañez, Wladimir; Silva, Juan P.; González, Pablo I.; Lagos, Sara; García, María Alexandra; Alarcón Mardones, Matías; Rojas, Paulina S.; Xu, Xiaojiang; Cidlowski, John A.; Aliaga, Esteban; Fiedler Temer, Jenny (Elsevier, 2022)
      Stress-related disorders display differences at multiple levels according to sex. While most studies have been conducted in male rodents, less is known about comparable outcomes in females. In this study, we found that the ...
    • Chronic stress triggers expression of immediate early genes and differentially affects the expression of ... 
      Pacheco Zapata, Aníbal; Aguayo, Felipe I.; Aliaga, Esteban; Muñoz, Mauricio; García Rojo, Gonzalo; Olave, Felipe A.; Parra Fiedler, Nicolás; García Pérez, Alexandra; Tejos Bravo, Macarena; Rojas, Paulina S.; Parra, Claudio S.; Fiedler Temer, Jenny (Frontiers media SA, 2017)
      Previous studies in rats have demonstrated that chronic restraint stress triggers anhedonia, depressive-like behaviors, anxiety and a reduction in dendritic spine density in hippocampal neurons. In this study, we compared ...
    • Chronic-intermittent cold stress in rats induces selective ovarian insulin resistance 
      Dorfman, Mauricio; Ramirez, Victor D.; Stener-Victorin, Elisabet; Lara Peñaloza, Hernán (2009)
      In rat ovary chronic cold stress increases sympathetic nerve activity, modifies follicular development, and initiates a polycystic condition. To see whether there is a relationship between the previously described changes ...
    • Chronocoulometry diffusion coefficients as a measure of cyclodextrin-estradiol complex association 
      Yáñez Soto, Claudia; Basquinzay, R. (ELSEVIER SCIENCE SA, 2008-10-15)
      The formation of inclusion complexes between estradiol and p-cyclodextrin (CD), sulfobutyleter-beta-CD (SBCD) and hydroxypropil-beta-CD (HPCD) was studied by chronocoulometric and differential pulse voltammetry. In presence ...
    • Chronopharmacokinetics of theophylline administered as a controlled-release tablet 
      Thielemann, A. M.; Manquez, N.; Pinilla, E.; Gai, M. N.; Romero, P.; Arancibia, A.; Chavez, H. (1996)
      The result obtained from different studies of the chronopharmacokinetics of some controlled-release tablets of theophylline are variable, since some authors report differences while others do not. At our laboratory we have ...
    • La ciencia química en Chile y sus grupos de investigación. Período 1987 - 1992 
      Schalscha B., Eduardo (Sociedad Chilena de Química, 1993)
      Este documento da una visión general del estado de esta disciplina, el que se elaboró a partir de la información solicitada a los investigadores del sistema universitario, estableciendo los Grupos de Investigación, sus ...
    • Ciencia, evolución y ética: de la herencia biológica a la herencia cultural 
      Sapag Hagar, Mario (Academia de Estudios Prof. Alfoso Leng, 1991)
      La evolución: un gran proceso creador y unificador. Los sistemas basados en grandes ideas unificadoras suelen asociarse, conciente o inconcientemente, con pensamientos o creencias acerca del destino humano y de su origen. ...
    • Ciencias para el futuro: retos y oportunidades de la investigación en la Universidad de Chile en las próximas ... 
      Lavandero González, Sergio (2022)
    • Cinética diferencial de cobre y zinc con zincón en un sistema FIA/Flujo interrumpido. Determinación de ... 
      Richter Duk, Pablo; Toral Ponce, María; Tapia, A. Eugenia; Ubilla, Claudia; Bunster, Mauricio (Sociedad Chilena de Química, 1996)
      Se propone un método de análisis por inyección en flujo (FIA) con flujo interrumpido para la determinación simultánea de cobre y zinc. El método se basa en las diferentes velocidades en que se produce la reacción entre ...
    • Circulating vascular cell adhesion molecule-1 (sVCAM-1) is associated with left atrial remodeling in ... 
      Contreras Briceño, Felipe Andrés; Herrera, Sebastián; Vega Adauy, Julián; Salinas, Manuel; Ocaranza, María Paz; Jalil, Jorge E.; Mandiola, Jorge; Garcia Nannig, Lorena del Pilar; Chiong Lay, Mario Martin; Castro, Pablo F.; Lavandero González, Sergio Alejandro; Gabrielli, Luigi (Frontiers Media, 2021)
      An increased risk of atrial fibrillation (AF) has been demonstrated in high-performance athletes. Soluble vascular adhesion molecule-1 (sVCAM-1), a biomarker involved in inflammation and cardiac remodeling, is associated ...
    • Citrus limon seedlings without functional chloroplasts are unable to induce phenylalanine ammonia-lyase in ... 
      Prieto, Humberto; Chiong Lay, Mario; Garrido, Jorge; Seelenfreund Hirsch, Daniela; Quaas, Alex; Pérez Roepke, Luz María (GUSTAV FISCHER VERLAG, 1997-05)
      A light-dependent bleaching of plastids was induced in lemon seedlings through cultivation in the presence of the herbicide Norfluorazon (NFZ). Also, etiolated seedlings were obtained by cultivation under continuous dark ...
    • Clarification of purple cactus pear juice using microfiltration membranes to obtain a solution of betalain pigments 
      Vergara, Cristina; Cancino-Madariaga, Beatriz; Ramírez-Salvo, Andrés; Sáenz Hernández, Carmen Luisa; Robert Canales, Paz; Lutz, Mariane (Instituto de Tecnologia de Alimentos - ITAL, 2015)
      Betalains are fruit pigments possessing health-giving properties. To isolate the pigments, the juice must be separated from the fruit matrix, which contains biopolymers. The aim of this study was to clarify cactus pear ...
    • Clean singlet oxygen production by a Re 
      Spada, Ramiro M.; Cepeda-Plaza, Marjorie; Gómez, María L.; Günther Sapunar, Germán; Jaque, Pablo; Pizarro, Nancy; Palacios, Rodrigo E.; Vega, Andrés (American Chemical Society, 2015)
      © 2015 American Chemical Society.Rhenium complexes are versatile molecular building blocks whose tunable photophysical properties are useful in diverse opto-related applications. Herein we report the synthesis and ...
    • Clean Singlet Oxygen Production by a ReI Complex Embedded in a Flexible Self-Standing Polymeric Silsesquioxane Film 
      Spada, Ramiro M.; Cepeda Plaza, Marjorie; Gómez, María L.; Günther Sapunar, Germán; Jaque, Pablo; Pizarro, Nancy; Palacios, Rodrigo E.; Vega, Andrés (American Chemical Society, 2015)
      Rhenium complexes are versatile molecular building blocks whose tunable photophysical properties are useful in diverse opto-related applications. Herein we report the synthesis and characterization of a novel ReI ...
    • Cloning and chromosomal localization of the gene coding for human protein kinase CK1 
      Tapia, Claudio; Featherstone, Terence; Gómez, Claudio; Taillon-Miller, Patricia; Allende, Catherine C.; Allende, Jorge E. (1994)
      A cDNA clone coding for human protein kinase CK1 (casein kinase 1) has been isolated and sequenced demonstrating that it corresponds to a homolog of the CK1α form found in bovine brain. The derived amino acid sequence of ...