Browsing by Author "Letelier Muñoz, María Eugenia"
Now showing items 41-51 of 51
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Sánchez Jofré, Sebastián (Universidad de Chile, 2009)Numerosas publicaciones demuestran la asociación de diversas patologías del SNC a estrés oxidativo. En estas condiciones, los neurotransmisores como las catecolaminas y la serotonina, y fármacos como la cimetidina, sufren ...
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Jara Sandoval, José (Universidad de ChilePrograma Cybertesis, 2007)La toxicidad celular del cobre se ha relacionado con la capacidad que los iones de cobre libre tiene para catalizar, a través de las reacciones de Haber Weiss y/o Fenton, la producción de radicales libres del oxígeno ...
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Letelier Muñoz, María Eugenia; Lepe, Ana María; Faúndez, Mario; Salazar, Julia; Marín Catalán, Rigoberto; Aracena Parks, Paula; Speisky Cosoy, Hernán (ELSEVIER SCI IRELAND, 2005-01-15)It is generally accepted that copper toxicity is a consequence of the generation of reactive oxygen species (ROS) by copper ions via Fenton or Haber-Weiss reactions. Copper ions display high affinity for thiol and amino ...
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Pastene, Edgar; Avello, Marcia; Letelier Muñoz, María Eugenia; Sanzana, Elizabeth; Vega, Mario; González, Margarita (The MathWorks Automotive Advisory Board, 2007)Aqueous extracts of Cheilanthes glauca (Cav.) Mett., (Adiantaceae), commonly named Doradilla, are often used in folk medicine as anti-inflammatory and for diabetes treatment. In the present study the antioxidant capacity ...
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Letelier Muñoz, María Eugenia; Aracena Parks, Paula; Peredo Silva, Liliana (2010)Herbal extracts must be evaluated for their efficacy and safety. In vivo acute toxicity studies must consider the different mechanisms by which active compounds may elicit toxicological outcomes. Thus, a methodology to ...
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Peredo Silva, Liliana (Universidad de Chile, 2010)Los extractos herbales deben ser evaluados en cuanto a eficacia y seguridad. Estudios de toxicidad aguda in vivo deben considerar los diferentes mecanismos por los cuales los principios activos pueden producir toxicidad. ...
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Letelier Muñoz, María Eugenia; Rodríguez Rojas, Carmen; Sánchez Jofré, Sebastián; Aracena Parks, Paula (ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD, 2011-03)Chenopodium quinoa Willd (quinoa) has been a source of food for millennia by the Andes region native population. Because of its bitter taste, quinoa seeds are commercialized without their coat for human consumption. Quinoa ...
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Aldunate, Jorge; Ferreira, Jorge; Letelier Muñoz, María Eugenia; Repetto Scaramelli, Yolanda; Morello Casté, Antonio (1986)t-Butyl-4-hydroxyanisole, an antioxidant food additive, inhibited the growth of Trypanosoma cruzi by almost 100% at 0.5 mM concentration. This compound inhibited 70% of oxygen consumption of epimastigotes. The redox level ...
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Aguirre, María C.; Delporte Vergara, Carla; Backhouse Erazo, Nadine; Erazo, Silvia; Letelier Muñoz, María Eugenia; Cassels Niven, Bruce; Silva, Ximena; Alegría, Sergio; Negrete Córdova, Rosa (PERGAMON-ELSEVIER SCIENCE LTD, 2006-08-15)Leaf extracts of Ugni molinae Turcz. are used in the Chilean cosmetic industry on the assumption that they have decongestant, regenerative, and anti-aging properties. A bioassay-guided fractionation of this plant material ...
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Aguirre, María C.; Delporte Vergara, Carla; Backhouse Erazo, Nadine; Erazo, Silvia; Letelier Muñoz, María Eugenia; Cassels Niven, Bruce; Silva, Ximena; Alegría, Sergio; Negrete Córdova, Rosa (Elsevier Ltd., 2006-05-11)Abstract—Leaf extracts of Ugni molinae Turcz. are used in the Chilean cosmetic industry on the assumption that they have decongestant, regenerative, and anti-aging properties. A bioassay-guided fractionation of this plant ...
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Larraín Sánchez, Juan Ignacio (Universidad de Chile, 2005)En general los procesos de biotransformación de fármacos originan metabolitos excretables por la orina. Nitrofurantoína y Nifurtimox son compuestos lipofílicos, sin embargo no existen antecedentes acerca de la eliminación ...