Browsing by Issue Date Artículos de revistas

Now showing items 101-120 of 854

    • Nutrition challenges for the twenty-first century 
      Dangour, Alan D.; Uauy Dagach-Imbarack, Ricardo (CAMBRIDGE UNIV PRESS, 2006-08)
      Although progress has been made towards international goals for the eradication of hunger and malnutrition, considerable work is still required to achieve them and to respond to emerging public health nutrition challenges. ...
    • Controlled study of enteral arginine supplementation in burned children: impact on immunologic and metabolic status 
      Marín, Verónica B.; Rodríguez Osiac, Lorena; Schlessinger, Liana; Villegas, Jorge; López, Marcelo; Castillo Durán, Carlos (ELSEVIER, 2006-08)
      Objective: We compared the effects of an arginine-supplemented diet with those of an isocaloric isonitrogenous diet on immune and metabolic response of children with burns. Methods: This was a double-blind, randomized, ...
    • 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 ...
    • Effects of vitamin D supplementation and exercise training on physical performance in Chilean vitamin D ... 
      Bunout Barnett, Daniel; Barrera Acevedo, María; Leiva Balich, Laura; Gattas, Vivien; Maza Cave, María Pía de la; Avendaño, Marcelo; Hirsch Birn, Sandra (PERGAMON-ELSEVIER SCIENCE LTD, 2006-08)
      The aim was to assess the effects of resistance training and vitamin D supplementation on physical performance of healthy elderly subjects. Ninety-six subjects, aged 70 years or more with 25 OH vitamin D levels of 16 ng/ml ...
    • Endoglin regulates cyclooxygenase-2 expression and activity 
      Jerkic, Mirjana; Rivas Elena, Juan V.; Santibáñez, Juan Francisco; Prieto, Marta; Rodríguez Barbero, Alicia; Pérez Barriocanal, Fernando; Pericacho, Miguel; Arévalo, Miguel; Vary, Calvin P.H.; Letarte, Michelle; Bernabeu, Carmelo; López Novoa, José M. (LIPPINCOTT WILLIAMS & WILKINS, 2006-08-04)
      The endoglin heterozygous (Eng(+/-)) mouse, which serves as a model of hereditary hemorrhagic telangiectasia (HHT), was shown to express reduced levels of endothelial NO synthase (eNOS) with impaired activity. Because of ...
    • Energy balance and physical activity in obese children attending day-care centres 
      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 ...
    • 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 ...
    • In Vitro Interaction Between Homocysteine and Copper Ions: Potential Redox Implications 
      Carrasco Pozo, Catalina; Álvarez Lueje, Alejandro; Olea Azar, Claudio; López Alarcón, Camilo; Speisky Cosoy, Hernán (SOC EXPERIMENTAL BIOLOGY MEDICINE, 2006-10)
      Homocysteine (Hcys) has been implicated in various oxidative stress–related disorders. The presence of a thiol on its structure allows Hcys to exert a double-edge redox action. Depending on whether Cu2þions occur ...
    • 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 ...
    • A mathematical model for copper homeostasis in Enterococcus hirae 
      Pécou, Elisabeth; Maass Sepúlveda, Alejandro; Remenik Zisis, Daniel; Briche, Julien; González Canales, Mauricio (ELSEVIER, 2006-10)
      Copper is an essential micronutrient for life. It is required by a wide range of species, from bacteria to yeast, plants and mammals including humans. To prevent the consequences of the excess or deficit of copper, living ...
    • 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 ...
    • 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 ...
    • Chilean School-Age Children Twin Registry: Planning, Sampling and Implications 
      Ivanovic Marincovich, Daniza; Llop Romero, Elena; Alvear, Jorge A.; Pérez Muñoz, Hernán; Díaz, Nora S.; Leyton Dinamarca, Bárbara; Almagià, Atilio F.; Larraín, Cristián G.; Alvarez, Joel E.; Herrera, Yilda F.; Hazbun, Elizabeth L. (2006-12)
      We describe subject recruitment from the University of Chile School-Age Children Twin Registry (REMEUCHI). The research aim of REMEUCHI is to quantify the impact of genetic and environmental factors on scholastic achievement ...
    • Iron deficiency in infancy: applying a physiologic framework for prediction 
      Lozoff, Betsy; Kaciroti, Niko; Walter, Tomas (AMER SOC CLINICAL NUTRITION, 2006-12)
      Background: Infants aged 6-24 mo are at high risk of iron deficiency. Numerous studies worldwide have sought to identify predictors of iron deficiency in this age group. Objective: The objectives of the study were to apply ...
    • Lack of association between the fatty acid binding protein 2 (FABP2) polymorphism with obesity and insulin ... 
      Pérez Bravo, Francisco; Fuentes, M.; Ángel Badillo, Bárbara; Sánchez, H.; Carrasco, Elena; Santos, J. L.; Lera Marques, Lydia; Albala Brevis, Cecilia (SPRINGER, 2006-12)
      The aim of this study was to assess the frequency of fatty acid binding protein 2 (FABP2) Ala54Thr genetic polymorphism and to evaluate its association with obesity and insulin resistance in Chilean aboriginal populations. ...
    • 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 ...
    • Weight increase and overweight are associated with DNA oxidative damage in skeletal muscle 
      Maza Cave, María Pía de la; Olivares, Daniela; Hirsch Birn, Sandra; Sierralta, Walter; Gattas, Vivien; Barrera Acevedo, María; Bunout Barnett, Daniel; Leiva Balich, Laura; Fernández, Mireya (CHURCHILL LIVINGSTONE, 2006-12)
      Background and aims: Weight maintenance within normal standards is recommended for prevention of conditions associated with oxidative injury. To compare oxidative damage in a post mitotic tissue, between adults differing ...
    • Beyond recommendations: Implementing food-based dietary guidelines for healthier populations 
      Smitasiri, Suttilak; Uauy Dagach-Imbarack, Ricardo (2007)
      To reduce the increased burden of diet-related disease and promote human potential through food and nutrition globally, harmonization of efforts is urgently needed. This article examines the concept of food-based dietary ...
    • Glucose transporter type 1 deficiency sindrome (GLUT-1 SD) treated with ketogenic diet. Report of one case 
      Cornejo Espinoza, Verónica; Cabello, Juan Francisco; Colombo, Marta; Raimann Ballas, Erna (2007)
      The glucose transporter type 1 deficiency syndrome (GLUT-1 SD) (OMIM 606777) is an. inborn error of metabolism of brain. glucose transport. The characteristic clinical manifestations are seizures, hypotonia, developmental ...
    • Systematics, taxonomy and domestication of alpaca and llama: new chromosomal and molecular evidence 
      Marín, Juan C.; Zapata, Beatriz; González, Benito; Bonacic, Cristian; Wheeler, Jane C.; Casey, Ciara; Bruford, Michael W.; Palma, R. Eduardo; Poulin, Elie; Alliende Rodríguez, María Angélica; Spotorno Oyarzún, Ángel (2007)
      Four camelid species exist in South America: two wild, the guanaco (Lama guanicoe) and the vicuna (Victigna vicugna), and two domestic, the alpaca (Lama pacos) and the llama (Lama glama). However, the origin of the domestic ...