Antonio López-Espinoza

Learn More
Octodon degus, a mainly diurnal rodent, characterized by its ability to shift to a nocturnal locomotor pattern under laboratory conditions, was studied to determine whether restricted food access during the scotophase could induce nocturnalism. To address this question, wheel running activity, feeding, and body temperature rhythms were analyzed for diurnal(More)
Animals display preferences for sweetened over unsweetened foods under diverse experimental procedures. No evidence has been provided of whether flavor or energetic content of sweeteners determine this preference. In this experiment, female and male rats were exposed to water and a solution sweetened with glucose (sweet taste and calories) and water and a(More)
La gran bebida ha sido reportada en cuatro condiciones experimentales: 1) en sujetos expuestos a alcohol; 2) bajo programas de reforzamiento; 3) después de aplicar un periodo de privación de agua o comida; y, 4) ante la presencia de endulzantes en el agua. Martínez (2005) señaló que las ratas consumen grandes cantidades de agua endulzada cuando son(More)
Six albino rats were divided in two experimental groups and one control. The experiment began with fifteen days of free access; subsequently experimental groups maintained available three concentrations of glucose: high, middle and low. First group received high-middle-low-high-middle-low sequence and second group received low-middle-high-low-middle-high(More)
OBJECTIVE To evaluate and compare the intake of lipids and (A, E, and C) vitamins in patients with and without possible neurodegenerative diseases. METHODS Twenty adults with possible Alzheimer's disease or Parkinson's disease and 41 control subjects (50-89 years old) from a rural region were studied. Dietary intake was evaluated with the analysis of(More)
  • 1