Instituto de Nutrición y Tecnología de los Alimentos: Recent submissions

Now showing items 821-840 of 928

    • Iron absorption from wheat flour: effects of lemonade and chamomile infusion. 
      Pizarro Aguirre, Fernando; Pizarro Aguirre, Fernando; Hertrampf, Eva; Fuenmayor, Guillermo; Estévez, Edmundo (ELSEVIER SCIENCE INC, 2007-04)
      Objective: We measured iron bioavailability of meals based on wheat flour consumed by a vulnerable population in Latin America. Methods: Bioavailability of iron (ferrous sulfate) from fortified noodles, noodle soup, noodle ...
    • Acute inhibition of iron absorption by zinc 
      Pizarro Aguirre, Fernando; Pizarro Aguirre, Fernando; Gaitán, Diego; Ruz, Manuel (PERGAMON-ELSEVIER SCIENCE LTD., 2007-05)
      Iron and zinc deficiencies are the most common nutritional deficiencies worldwide. Combined zinc and iron supplementation is one of the strategies used to prevent these deficiencies. Zinc has an inhibitory effect on iron ...
    • Adiposidad visceral y su asociación con lípidos séricos e insulinemia en adolescentes obesas 
      Neri, Daniela; Espinoza, Aníbal; Bravo, Aurora; Rebollo, M. Jesús; Moraga, Francisco; Mericq, Verónica; Castillo Durán, Carlos (SOC MEDICA SANTIAGO, 2007-03)
      Increased visceral or abdominal adipose tissue in children and adults is strongly associated with metabolic and a variety of chronic diseases. Aim: To study the association between visceral or external body measurements ...
    • Determinación de los índices glicémicos y de insulina en fórmulas para alimentación enteral en adultos sanos 
      Gattas, Vivien; Barrera Acevedo, María Gladys; Leiva, Laura; Maza Cave, María Pía de la; Bunout Barnett, Daniel; Steenhout, Philippe; Klassen, Petra; Voss, Theresa; Hirsch Birn, Sandra (SOC MEDICA SANTIAGO, 2007-07)
      In acute illnesses, plasma glucose levels are often increased and generally parallel the severity of stress. Hyperglycemia caused by reduced insulin sensitivity and reduced insulin secretion is associated with increased ...
    • Prenatal undernutrition decreases the sensitivity of the pituitary-adrenal axis in rat, as revealed by ... 
      Navarrete, Mario; Núñez, Héctor; Ruiz, Samuel; Soto Moyano, Rubén; Valladares Boasi, Luis; White Ortiz, Allan; Pérez, Hernán (ELSEVIER IRELAND LTD, ELSEVIER HOUSE, 2007-05)
      Prenatal undernutrition is known to disturb the hypothalamo-pituitary-adrenal (HPA) axis, possibly through the programming of decreased expression of hypothalamic and pituitary glucocorticoid receptors. To test this ...
    • Larger Anti-adipogenic Effect of Angiotensin II on omental preadipose cells of obese humans 
      Brücher, Rodrigo; Cifuentes, Mariana; Acuña, María José; Albala Brevis, Cecilia; Rojas Baechler, Cecilia (NORTH AMER ASSOC STUDY OBESITY, 2007-07)
      Objective: The ability to form new adipose cells is important to adipose tissue physiology; however, the mechanisms controlling the recruitment of adipocyte progenitors are poorly understood. A role for locally generated ...
    • Nutrition in brain development and aging: Role of essential fatty acids 
      Uauy Dagach-Imbarack, Ricardo; Dangour, Alan D. (INT LIFE SCIENCES INST NORTH AMERICA, 2006-05)
      The essential fatty acids (EFAs), particularly the n-3 long-chain polyunsaturated fatty acids (LCPs), are important for brain development during both the fetal and postnatal period. They are also increasingly seen to be ...
    • Indicadores antropométricos, composición corporal y limitaciones funcionales en ancianos 
      Arroyo Albala, Patricia; Lera Marques, Lydia; Sánchez, Hugo; Bunout Barnett, Daniel; Santos, José Luis; Albala Brevis, Cecilia (Sociedad Médica de Santiago, 2007-07)
      Functional limitations limit the independence and jeopardize the quality of life of elderly subjects. Aim: To assess the association between anthropometric measures and body composition with functional limitations in ...
    • Melatonin administration impairs visuo-spatial performance and inhibits neocortical long-term potentiation in rats 
      Soto Moyano, Rubén; Burgos, Héctor; Flores, Francisco; Valladares Boasi, Luis; Sierralta, Walter; Fernández Hidalgo, Víctor; Pérez, Hernán; Hernández, Paula; Hernández, Alejandro (PERGAMON-ELSEVIER SCIENCE LTD, 2006-10)
      Melatonin has been shown to inhibit long-term potentiation (LTP) in hippocampal slices of rats. Since LTP may be one of the main mechanisms by which memory traces are encoded and stored in the central nervous system, it ...
    • High Affinity Leptin Receptors Are Present in Human Mesenchymal Stem Cells (MSCs) Derived From Control and ... 
      Hess, Rodrigo; Pino, Ana María; Ríos, Susana; Fernández Gálvez, Mireya; Rodríguez, J. Pablo (AMER SOC BONE & MINERAL RES., 2004-10)
      There are disparate observations on central and peripheral effects of leptin, but several studies consistently support its role as a link between fat and bone. Bone marrow stroma contains mesenchymal stem cells (MSCs), ...
    • Mild prenatal protein malnutrition increases alpha(2C)-adrenoceptor expression in the rat cerebral cortex ... 
      Sierralta, Walter; Hernández, Alejandro; Valladares Boasi, Luis; Pérez, Hernán; Mondaca, Mauricio; Soto Moyano, Rubén (PERGAMON-ELSEVIER SCIENCE LTD, 2006-05-15)
      Mild reduction in the protein content in the diet of pregnant rats from 25 to 8% casein, calorically compensated by carbohydrates, does not alter body and brain weights of rat pups at birth, but results in significant ...
    • Cholesterol oxidized products in foods: potential health hazards and the role of antioxidants in prevention 
      Valenzuela Bonomo, Carlos; Sanhueza, Julio; Nieto, Susana (INST GRASA SUS DERIVADOS, 2004-07)
      Cholesterol is a molecule with a double bond in its structure, and therefore it is susceptible to oxidation leading to the formation of oxysterols. These oxidation products are found in many commonly consumed foods and ...
    • JNK mediates TGF-beta 1-induced epithelial mesenchymal transdifferentiation of mouse transformed keratinocytes 
      Santibáñez, Juan Francisco (ELSEVIER, 2006-10-02)
      In this study we analyzed the role of the c-Jun N-terminal kinases (JNK) pathway in the TGF-beta 1 stimulation of urokinase-type plasminogen activator (uPA), initial stages of epithelial-mesenchymal transdifferentiation ...
    • Marcadores genéticos (HLA) y perfil de auto-anticuerpos en una familia mapuche con un caso de diabetes tipo 1 
      Sylvia, Asenjo M.; Andrea, Gleisner E.; Pérez Bravo, Francisco (Sociedad Médica de Santiago, 2004-01)
      Type 1 diabetes (DM1) is caused by an autoimmune process that destroys beta cells of pancreas. Not all carriers of susceptible HLA genes and positive for autoantibodies develop the disease. Environmental factors play a ...
    • Smoking specifically induces metallothionein-2 isoform in human placenta at term 
      Ronco Macchiavello, Ana María; Garrido, Fernando; Llanos Silva, Miguel (ELSEVIER, 2006-06-01)
      Recently, we reported the presence of higher levels of metallothionein (MT) in placentas of smokers compared to non-smokers. In the present study, we designed experiments to separate and evaluate two isoforms of NIT (MT-1 ...
    • Adult hippocampus derived soluble factors induce a neuronal-like phenotype in mesenchymal stem cells 
      Rivera, Francisco J.; Sierralta, Walter; Minguell, José J.; Aigner, Ludwig (ELSEVIER, 2006-10-02)
      Bone marrow-derived mesenchymal stem cells (MSCs) are not restricted in their differentiation fate to cells of the mesenchymal lineage. They acquire a neural phenotype in vitro and in vivo after transplantation in the ...
    • Ascorbyl palmitate enhances iron bioavailability in iron-fortified bread 
      Pizarro Aguirre, Fernando; Olivares Grohnert, Manuel; Hertrampf, Eva; Núñez, Silvia; Tapia, Marcelo; Cori, Héctor; López de Romaña, Daniel (AMER SOC CLINICAL NUTRITION, 2006-10)
      Background: One of the strategies to control iron deficiency anemia is the fortification of food with iron. A mechanism for improving the bioavailability of iron is to add an iron absorption promoter. Objective: The ...
    • Aromatase activity of human mesenchymal stem cells is stimulated by early differentiation, vitamin D and leptin 
      Pino, Ana María; Rodríguez, Juan Manuel; Ríos, Susana; Astudillo, Pablo; Leiva, Laura; Seitz, Germán; Fernández Gálvez, Mireya; Rodríguez, J. Pablo (SOC ENDOCRINOLOGY, 2006-12)
      Human mesenchymal stem cells (hMSCs) are multipotent cells present in bone marrow, which differentiate into osteoblasts and adipocytes, among other lineages. Oestrogens play a critical role in bone metabolism; its action ...
    • Paraventricular-coerulear interactions: role in hypertension induced by prenatal undernutrition in the rat 
      Pérez, H.; Ruiz, S.; Núñez, Héctor; White Ortiz, Allan; Gotteland, Martín; Hernández, A. (BLACKWELL, 2006-08)
      Rats submitted to fetal growth retardation by in utero malnutrition develop hypertension when adult, showing increased hypothalamic mRNA expression for corticotropin-releasing hormone (CRH) and increased central noradrenergic ...
    • HLA non-class II genes may confer type I diabetes susceptibility in a mapuche (Amerindian) affected family 
      Pérez Bravo, Francisco; Martínez Laso, Jorge; Martín-Villa, José M.; Moscoso, Juan; Moreno, Almudena; Serrano Vela, Juan I.; Zamora, Jorge; Asenjo, Silvia; Gleisner, Andrea; Arnaiz Villena, Antonio (ELSEVIER, 2006-02)
      A rare case of type I diabetes is studied in an Amerindian (Mapuche) family from Chile, analyzing glutamic acid decarboxylase, islet-cell autoantibodies and human leukocyte antigen (HLA) genes. The affected sib is the only ...