Wheel Running Response
Mostrando 1-5 de 5 artigos, teses e dissertações.
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1. Expressão do Coativador-1 do Peroxisome Proliferator-Activated Receptor- (PGC-1) em fígado e músculos esqueléticos soleus e plantaris de ratos machos Wistar submetidos ao exercício físico voluntário crônico / Peroxisome Proliferator-Activated Receptor- - Coactivator-1 ( PGC-1 ) expression in the liver and skeletal muscles soleus and plantaris of male Wistar rats subjected to chronic voluntary exercise
INTRODUCTION: The Peroxisome Proliferator-Activated Receptor- - Coactivator 1 ( PGC-1 e ) is a protein responsible for the connection between environmental stimuli and cell metabolic response. Its presence is important in fat tissue, hepatic and skeletal muscle and in animals on brown fat tissue. Interact with nuclear receptors modulating the mitochondrial b
Publicado em: 2009
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2. A resposta de andar na roda como reforço em ratos: um estudo exploratório sobre a resposta de andar na roda como reforço e sua relação com a restrição do tempo de alimento disponivel
Replicating Iversens (1993) procedure, this studys goal was to increase the comprehension of the running response of rats on an activity wheel when running was a consequence of responding on a fixed-ratio schedule. The study also explored the impact of a restricted period of food availability on the reinforcing value of wheel running. Body weight, food and w
Publicado em: 2005
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3. Neurochemical basis for the photic control of circadian rhythms and seasonal reproductive cycles: role for acetylcholine.
A pharmacological approach was used to examine the role of acetylcholine in the photic control of circadian rhythms and seasonal reproductive cycles. The experimental protocol was designed to determine whether the administration of carbachol, a cholinergic agonist, could mimic the effects of brief light pulses on gonadal function and/or the circadian rhythm
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4. Chronic stress and obesity: A new view of “comfort food”
The effects of adrenal corticosteroids on subsequent adrenocorticotropin secretion are complex. Acutely (within hours), glucocorticoids (GCs) directly inhibit further activity in the hypothalamo–pituitary–adrenal axis, but the chronic actions (across days) of these steroids on brain are directly excitatory. Chronically high concentrations of GCs act in t
National Academy of Sciences.
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5. Sensitivity and integration in a visual pathway for circadian entrainment in the hamster (Mesocricetus auratus).
1. Light-induced phase shifts of the circadian rhythm of wheel-running activity were used to measure the photic sensitivity of a circadian pacemaker and the visual pathway that conveys light information to it in the golden hamster (Mesocricetus auratus). The sensitivity to stimulus irradiance and duration was assessed by measuring the magnitude of phase-shif