Now showing items 741-760 of 855

    • Albala Brevis, Cecilia; Ebbeling, Cara B.; Cifuentes, Mariana; Lera Marques, Lydia; Bustos, Nelly; Ludwig, David S. (AMER SOC CLINICAL NUTRITION, 2008-09-01)
      Background: During the nutrition transition in Chile, dietary changes were marked by increased consumption of high-energy, nutrient-poor products, including sugar-sweetened beverages (SSBs). Obesity is now the primary ...
    • Sánchez, Susana; Castillo Durán, Carlos (ARCHIVOS LATINOAMERICANOS NUTRICION, 2008-12)
      Las alteraciones de la conducta alimentaria son frecuentes en niños; pero se conocen poco sus características en niños/ as Latinoamericanos y sus diferencias por estrato socioeconómico (ESE). El objetivo fue caracterizar ...
    • Collado, Gonzalo A.; Espoz, Carmen; Méndez, Marco; Brown, Donald I. (INT SCIENCE SERVICES/BALABAN PUBLISHERS, 2008-12)
      This study presents results of the examination of the ultrastructure of the spermatozoon of seven South American species of Tegula using light and transmission electron microscopy. In all cases the spermatozoa were of ...
    • Alliende Rodríguez, María Angélica; Cámpora, Laura; Curotto, Bianca; Toro, Jessica; Valiente, Alf; Castillo, Marcela; Cortés, Fanny; Trigo, César; Alvarado, Cecilia; Silva, Manuel; Carú Marambio, Margarita (SOC MEDICA SANTIAGO, 2008-12)
      Mental retardation or intellectual disability affects 2% of the general population, but in 60% to 70% of cases the real cause of this retardation is not known. An early etiologic diagnosis of intellectual disability can ...
    • Pérez, Hernán; Ruiz, Samuel; Núñez, Héctor; White Ortiz, Allan; Gotteland, Martín (TAYLOR & FRANCIS LTD, 2007-05)
      The effects of intracoerulear CRH and intraparaventricular prazosin on systolic pressure, diastolic pressure and heart rate were studied in prenatally malnourished hypertensive rats. At day 40 of life, (i) malnourished ...
    • Ordóñez Pizarro, Fernando; Pizarro Aguirre, Fernando; Ruz, Manuel (ELSEVIER SCIENCE INC, 2007-04)
      Objective: We measured the effects of lower and higher doses of zinc (Zn) given as an aqueous solution on the bioavailability of iron (Fe). Methods: Fourteen healthy subjects received a solution with 0.5 mg of elemental ...
    • Vásquez Vergara, Fabián; Salazar, G.; Andrade Santibáñez, Ana; Vásquez, L.; Díaz Bustos, Erik (NATURE PUBLISHING GROUP, 2006-09)
      Objective: To evaluate energy balance and physical activity in obese preschool children attending day-care centres. Design: Cross-sectional study. Subjects: Twenty-four 3-5 years old obese children selected at random ...
    • 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 ...
    • 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 ...
    • 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 ...
    • 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 ...
    • 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 ...
    • 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 ...
    • 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 ...
    • 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 ...
    • 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 ...
    • 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), ...
    • 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 ...
    • 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 ...
    • 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 ...