Browsing by Subject "Absorption"

Now showing items 1-10 of 10

    • DMT1, a physiologically relevant apical Cu1+ transporter of intestinal cells 
      Arredondo, Miguel; Muñoz, Patricia; Mura, Casilda; Núñez González, Marco (2003)
      Despite important advances in the under-standing of copper secretion and excretion, the molecular components of intestinal copper absorption remain a mys-tery. DMT1, also known as Nramp2 and DCT1, is the trans-porter ...
    • Dynamic and kinematic characterization of the impulsive wavemaker system in a numerical wave tank 
      Barraud, C.; Hernández, R. H. (Amer Inst. Physics, 2020)
      We study the dynamical response of a piston-type wavemaker in a numerical wave tank. The two-dimensional, fully viscous unsteady Navier-Stokes equations are solved on a two-phase flow configuration using the volume of fluid ...
    • Effect of pH, mucin and bovine serum on rifampicin permeability through Caco-2 cells 
      Gonçalves, José; Ballerini Fernandes, Mariane; Chiann, Chang; Gai, Maria Nella; De Souza, Jacqueline; Storpirtis, Sílvia (2012)
      Rifampicin, a poorly soluble drug, has great importance in therapeutics as it is the main drug used to treat tuberculosis. The characterization of its permeability and the factors that influence it represent an important ...
    • Estrogen prevents the reduction in fractional calcium absorption due to energy restriction in mature rats 
      Cifuentes, Mariana; Advis, Juan P.; Shapses, Sue A. (2004)
      Weight reduction is a risk factor for bone loss. We previously showed that energy restriction is associated with a decrease in calcium (Ca) absorption and decreased estrogenic activity (EA). We hypothesized that this ...
    • Examining the relation between practicing meditation and having peak experiences and lucid dreams. A ... 
      Garcia Campayo, Javier; Hijar Aguinaga, Rinchen; Barceló Soler, Alberto; Fernández Martínez, Selene; Aristegui Lagos, Roberto Hernán; Pérez Aranda, Adrián (Frontiers Media, 2022)
      The aim of this study was to compare meditators and non-meditators in terms of their tendency to have peak experiences and their dream lucidity, while examining the associations between these outcomes and some related ...
    • Hydrogen Storage in Palladium Hollow Nanoparticles 
      Valencia, Felipe; González, Rafael I.; Tramontina, Diego; Rogan Castillo, José; Valdivia Hepp, Juan; Kiwi Tichauer, Miguel; Bringa, Eduardo (American Chemical Society, 2016-10-20)
      The potential and properties of palladium hollow nano particles (hNPs) as a possible H storage material are explored by means of classical molecular dynamics (MD) simulations. First, we study the stability of pure Pd hNPs ...
    • Influence of ethanol ingestion on tetracycline kinetics 
      Seitz, Germán; GARCIA,; Arancibia, Verónica (1995)
      The effect of ethyl alcohol ingestion on tetracycline kinetics was studied in 9 healthy male volunteers. They received, on two separate occasions, 500 mg of tetracycline tablets given with water or with an alcoholic beverage. ...
    • Non-heme iron as ferrous sulfate does not interact with heme iron absorption in humans 
      Gaitán, Diego; Olivares, Manuel; Lönnerdal, Bo; Brito, Alex; Pizarro Aguirre, Fernando (2012)
      The absorption of heme iron has been described as distinctly different from that of non-heme iron. Moreover, whether heme and non-heme iron compete for absorption has not been well established. Our objective was to investigate ...
    • Primordial helium-3 redux : the helium isotope ratio of the Orion nebula 
      Cooke, Ryan J.; Noterdaeme, Pasquier; Johnson, James W.; Pettini, Max; Welsh, Louise; Peroux, Celine; Murphy, Michael T.; Weinberg, David H. (IOP, 2022)
      We report the first direct measurement of the helium isotope ratio, He-3/He-4, outside of the Local Interstellar Cloud, as part of science-verification observations with the upgraded CRyogenic InfraRed Echelle Spectrograph. ...
    • The effect of calcium on non-heme iron uptake, efflux, and transport in intestinal-like epithelial cells ... 
      Gaitán, Diego Alejandro; Flores, Sebastian; Pizarro Aguirre, Fernando; Olivares, Manuel; Suazo, Miriam; Arredondo, Miguel (2012)
      It has been suggested that calcium inhibits the absorption of dietary iron by directly affecting enterocytes. However, it is not clear if this effect is due to a decreased uptake of iron or its efflux from enterocytes. We ...