Now showing items 1-20 of 39

    • Wilson, Carlos; Muñoz Palma, Ernesto; Henríquez, Daniel R.; Palmisano, Ilaria; Núñez González, Marco; Di Giovanni, Simone; González Billault, Christian (Soc Neuroscience, 2016)
      Physiological levels of ROS support neurite outgrowth and axonal specification, but the mechanisms by which ROS are able to shape neurons remain unknown. Ca2+, a broad intracellular second messenger, promotes both Rac1 ...
    • Theil, Elizabeth C.; Chen, Huijun; Miranda, Constanza; Janser, Heinz; Elsenhans, Bernd; Núñez González, Marco; Pizarro Aguirre, Fernando; Schümann, Klaus (AMER SOC NUTRITION, 2012-03)
      Ferritin iron from food is readily bioavailable to humans and has the potential for treating iron deficiency. Whether ferritin iron absorption is mechanistically different from iron absorption from small iron complexes/salts ...
    • Núñez González, Marco; Pinto, Ines; Glass, Jonathan (Springer-Verlag, 1989)
      A59Fe assay was designed to detect an Fe(III) binding capacity in NP-40 solubilized proteins from rabbit reticulocyte endocytic vesicles. The iron binding capacity had an apparent molecular weight as determined by gel ...
    • Becerra-Ruiz, Martín; Vargas, Victor; Jara, Patricio; Tirapegui, Cristian; Carrasco, Carlos; Núñez González, Marco; Lezana, Nicolás; Galdámez Silva, Antonio; Vilches-Herrera, Marcelo (Wiley-VCH Verlag, 2018)
      © 2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim Lipid droplets (LDs) have been recognized as highly dynamic cellular organelles involved in important biological functions for the survival of organisms such as supplying ...
    • San Martín Rovirosa, Carol; Garri, Carolina; Pizarro Aguirre, Fernando; Walter, Tomas; Theil, Elizabeth C.; Núñez González, Marco (Journal of Nutrition, 2008-05)
      Iron deficiency, a condition currently affecting ;3 billion people, persists in the 21st century despite half a millennium of medical treatment. Soybean ferritin (SBFn), a large, stable protein nanocage around a mineral ...
    • Wilson, Carlos; Núñez González, Marco; González Billault, Christian (Company of Biologists Ltd., 2015)
      Reactive oxygen species (ROS) produced by the NADPH oxidase (NOX) complex play important physiological and pathological roles in neurotransmission and neurodegeneration, respectively. However, the contribution of ROS to ...
    • García Beltrán, Olimpo; Cassels Niven, Bruce; Pérez, Claudio; Mena, Natalia P.; Núñez González, Marco; Martínez, Natalia P.; Pizarro Pavez, Paulina Ignacia; Aliaga, Margarita E. (MDPI, 2014)
      Two new coumarin-based “turn-off” fluorescent probes, (E)-3-((3,4-dihydroxybenzylidene)amino)-7-hydroxy-2H-chromen-2-one (BS1) and (E)-3-((2,4-dihydroxybenzylidene)amino)-7-hydroxy-2H-chromen-2-one (BS2), were synthesized ...
    • García Beltrán, Olimpo; Cassels Niven, Bruce; Mena, Natalia P.; Núñez González, Marco; Yáñez, Osvaldo; Caballero, Julio (Elsevier, 2014)
      In this Letter we present a new probe, (E)-7-(diethylamino)-2-oxo-2H-chromene-3-carbaldehyde oxime (JB), which can detect Cu2+ ions in HEPES buffer under physiological conditions. Benesi–Hildebrand and Job plots demonstrate ...
    • García Beltrán, Olimpo; Mena, Natalia; Yañez, Osvaldo; Caballero, Julio; Vargas, Víctor; Núñez González, Marco; Cassels Niven, Bruce (Elsevier Masson SAS, 2013)
      A new coumarin-based 'turn-off' fluorescent probe, 7-(diethylamino)-N-(1,3- dihydroxy-2-(hydroxymethyl) propan-2-yl)-2-oxo-2H-chromene-3-carboxamide (AGD) was synthesized. This compound is highly selective for ferrous ions ...
    • García Beltrán, Olimpo; Mena, Natalia P.; Yáñez, Osvaldo; Caballero, Julio; Vargas Cortés, Víctor; Núñez González, Marco; Cassels Niven, Bruce (2013)
      A new coumarin-based ‘turn-off’ fluorescent probe, 7-(diethylamino)-N-(1,3-dihydroxy-2-(hydroxymethyl) propan-2-yl)-2-oxo-2H-chromene-3-carboxamide (AGD) was synthesized. This compound is highly selective for ferrous ...
    • Salazar, Julio; Mena, Natalia P.; Hunot, Stephane; Prigent, Annick; Alvarez Fischer, Daniel; Arredondo Olguín, Miguel Armando; Duyckaerts, Charles; Sazdovitch, Veronique; Zhao, Lin; Garrick, Laura M.; Núñez González, Marco; Garrick, Michael D.; Raisman Vozari, Rita; Hirsch, Etienne C. (NATL ACAD SCIENCES, 2008-11-25)
      Dopaminergic cell death in the substantia nigra (SN) is central to Parkinson’s disease (PD), but the neurodegenerative mechanisms have not been completely elucidated. Iron accumulation in dopaminergic and glial cells ...
    • Salazar, Julio; Mena, Natalia P.; Hunot, Stephane; Prigent, Annick; Alvarez Fischer, Daniel; Arredondo, Miguel; Duyckaerts, Charles; Sazdovitch, Veronique; Zhao, Lin; Garrick, Laura M.; Núñez González, Marco; Garrick, Michael D.; Raisman Vozari, Rita; Hirsch, Etienne C. (2008)
      Dopaminergic cell death in the substantia nigra (SN) is central to Parkinson's disease (PD), but the neurodegenerative mechanisms have not been completely elucidated. Iron accumulation in dopaminergic and glial cells in ...
    • Cegarra Alvarado, Layimar Coromoto (Universidad de Chile, 2023)
      El hierro y el calcio son micronutrientes esenciales para el crecimiento y normal desarrollo de los seres humanos. El hierro es un componente esencial para el desarrollo de los procesos celulares, debido a su capacidad de ...
    • Antileo, Elmer; Garri, Carolina; Tapia, Victoria; Muñoz, Juan Pablo; Chiong Lay, Mario; Nualart, Francisco; Lavandero González, Sergio; Díaz Fernández, Juan Cristóbal; Núñez González, Marco (American Physiological Society, 2013)
      Ferritin, a food constituent of animal and vegetal origin, is a source of dietary iron. Its hollow central cavity has the capacity to store up to 4,500 atoms of iron, so its potential as an iron donor is advantageous to ...
    • Carriel Burgos, Carolina (Universidad de Chile, 2010)
      Debido a su capacidad de formar complejos de coordinación con ligandos orgánicos, el hierro participa ei1 procesos celulares básicos como fosforilación oxidativa, transporte y almacenamiento de oxígeno, metabolismo de ...
    • Urrutia, Pamela J.; Aguirre, Pabla; Esparza, Andrés; Tapia, Victoria; Mena, Natalia P.; Arredondo Olguín, Miguel Armando; González Billault, Christian; Núñez González, Marco (2013)
      Inflammation and iron accumulation are present in a variety of neurodegenerative diseases that include Alzheimer’s disease and Parkinson’s disease. The study of the putative association between inflammation and iron ...
    • Arredondo Olguín, Miguel Armando; Martínez, Ronny; Núñez González, Marco; Ruz, Manuel; Olivares Grohnert, Manuel (2006)
      Interactions of micronutrients can affect absorption and bioavailability of other nutrients by a number of mechanisms. In aqueous solutions, and at higher uptake levels, competition between elements with similar chemical ...
    • Arredondo Olguín, Miguel; Martínez, Ronny; Núñez González, Marco; Ruz, Manuel; Olivares, Manuel (SOCIEDAD BIOLGIA CHILE, 2005-05-05)
      Interactions of micronutrients can affect absorption and bioavailability of other nutrients by a number of mechanisms. In aqueous solutions, and at higher uptake levels, competition between elements with similar chemical ...
    • Urrutia, Pamela J.; Mena, Natalia P.; Núñez González, Marco (Frontiers Research Foundation, 2014)
      A growing set of observations points to mitochondrial dysfunction, iron accumulation, oxidative damage and chronic inflammation as common pathognomonic signs of a number of neurodegenerative diseases that includes Alzheimer's ...
    • 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 ...