Now showing items 1-12 of 12

    • Aguirre, Pabla; Mena, Natalia P.; Tapia, Victoria; Rojas, Alejandro; Arredondo Olguín, Miguel Armando; Núñez González, Marco (2006)
      Brain cells have a highly active oxidative metabolism, yet they contain only low to moderate superoxide dismutase and catalase activities. Thus, their antioxidant defenses rely mainly on cellular reduced glutathione levels. ...
    • Arredondo Olguín, Miguel Armando; Tapia, Victoria; Rojas, Alejandro; Aguirre, Pabla; Reyes, Francisca; Marzolo Canales, María Paz; Núñez González, Marco (SPRINGER, 2005-10-03)
      Mutations in the HFE gene result in hereditary hemochromatosis, a disorder of iron metabolism characterized by increased intestinal iron absorption. Based on the observation that ectopic expression of HFE strongly inhibits ...
    • Muñoz, Pablo; Zavala, Gabriela; Castillo, Karen; Aguirre, Pabla; Hidalgo Tapia, María Cecilia; Núñez González, Marco (2006)
      Recent evidence suggests that reactive oxygen species function as second messenger molecules in normal physiological processes. For example, activation of N-Methyl-D-Aspartate receptor results in the production of ROS, ...
    • Aracena Parks, Paula; Aguirre, Pabla; Muñoz, Pablo; Núñez González, Marco (2006)
      Neurons, as non-dividing cells, encounter a myriad of stressful conditions throughout their lifespan. In particular, there is increasing evidence that iron progressively accumulates in the brain with age and that ...
    • Aguirre, Pabla; Mena, Natalia P.; Carrasco, Carlos M.; Muñoz, Yorka; Pérez Henríquez, Patricio; Morales, Rodrigo A.; Cassels Niven, Bruce; Méndez Gálvez, Carolina; García Beltrán, Olimpo; González Billault, Christian; Núñez González, Marco (Public Library Science, 2015)
      Neuronal death in Parkinson's disease (PD) is often preceded by axodendritic tree retraction and loss of neuronal functionality. The presence of non-functional but live neurons opens therapeutic possibilities to recover ...
    • Aguirre, Pabla; Mena, Natalia P.; Tapia, Victoria; Arredondo Olguín, Miguel Armando; Núñez González, Marco (BIOMED CENTRAL LTD, 2005-01-24)
      Background: Iron is necessary for neuronal function but in excess generates neurodegeneration. Although most of the components of the iron homeostasis machinery have been described in neurons, little is known about the ...
    • Gómez, Francisco; Aguirre, Pabla; González Billault, Christian; Núñez González, Marco (Springer, 2011)
      Studies in post-mortem tissues of patients with Parkinson’s disease (PD) and in mice treated with 6-hydroxydopamine have shown a decrease in the length of axon and dendrites of striatal neurons. However, the etiology of ...
    • Núñez González, Marco; Tapia, Victoria; Rojas, Alejandro; Aguirre, Pabla; Gómez, Francisco; Nualart, Francisco (2010)
      00168.2009.—Intestinal iron absorption comprises the coordinated activity of the influx transporter divalent metal transporter 1 (DMT1) and the efflux transporter ferroportin (FPN). In this work, we studied the movement ...
    • Mura, Casilda V.; Delgado Arriagada, Ricardo; Aguirre, Pabla; Bacigalupo Vicuña, Juan; Núñez González, Marco (BLACKWELL PUBLISHING, 2009-01-09)
      The brain uses massive amounts of oxygen, generating large quantities of reactive oxygen species (ROS). Because of its lipid composition, rich in unsaturated fatty acids, the brain is especially vulnerable to ROS. ...
    • Mura, Casilda V.; Delgado Arriagada, Ricardo; Aguirre, Pabla; Bacigalupo Vicuña, Juan; Núñez González, Marco (BLACKWELL, 2006-07)
      The brain uses massive amounts of oxygen, generating large quantities of reactive oxygen species (ROS). Because of its lipid composition, rich in unsaturated fatty acids, the brain is especially vulnerable to ROS. Furthermore, ...
    • García Beltrán, Olimpo; Rodríguez, Alejandra; Trujillo, Ariel; Cañete, Alvaro; Aguirre, Pabla; Gallego Quintero, Sebastián; Núñez González, Marco; Aliaga, Margarita E. (Elsevier, 2015)
      We present here a novel probe, coumarin 3-azomethine derivative (AGB), which can detect selectively mercuric ions (Hg2+) via a hydrolysis reaction promoted by these ions. Interestingly, the probe can be used to assess the ...
    • Aguirre, Pabla; Valdés, Pamela; Aracena Parks, Paula; Tapia, Victoria; Núñez González, Marco (2007)
      Reactive iron is an important prooxidant factor, whereas GSH is a crucial component of a long-term adaptive system that allows cells to function during extended periods of high oxidative stress. In this work, the adaptive ...