Wheel Running Activity
Mostrando 1-12 de 19 artigos, teses e dissertações.
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1. Peculiarities of Morphology of Large Salivary Glands in Experimental Animals Under Different Conditions of Motor Activity of Their Mothers During Pregnancy
Abstract Objective: To evaluate of the microstructure of the salivary glands of experimental animals born from of females rats, who were subjected to different modes of motor activity during the pregnancy: limited and compensated by regular moderate training. Material and Methods: The sample was composed 84 three-month-old descendants of Wistar rats which
Pesqui. Bras. Odontopediatria Clín. Integr.. Publicado em: 10/10/2019
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2. Voluntary wheel running: patterns and physiological effects in mice
Exercise can prevent and improve the pathophysiology of diseases and promote healthy aging. Thus, understanding the mechanisms that regulate the beneficial effects of exercise may lead to the development of new strategies to enhance quality of life and to counteract chronic diseases. Voluntary wheel running is an interesting model to study the effects of exe
Braz J Med Biol Res. Publicado em: 10/12/2018
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3. Estudo da imunorreatividade das proteínas ligantes de cálcio na neuroquímica da medula espinal de ratos submetidos à atividade física espotânea na roda de corrida. / Study of the imunoreativite of ligantes calcium proteins in the neurochemistry of the espinal marrow of submitted rats the spontaneous physical activity in the race wheel
Actions of the physical activity in the neurochemistry focuzing calcium-bindin proteins and the activation of the glial cells in the spinal cord of the rat were investigated with imunohistochemistry over. Male wistar adult rats were divided in two groups: trained, which animals exercised in the wheel running for 4 and 14 nigths; and sedentary, which animals
Publicado em: 2008
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4. 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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5. Physical activity and neuroprotection in adult mice after pilocarpine induced status epilepticus / Atividade fisica e neuroproteção em camundongos adultos após indução de status epilepticus por pilocarpina
Pilocarpine-induced epilepsy in mice is an experimental model of the Temporal Lobe Epilepsy (TLE). Status epilepticus determined by pilocarpine adminstration leads to behavioral and electroencephalographic changes and neuronal damage similar to those observed in TLE. Recently, it has been shown that physical activity exerts neuroprotective effects, such as i
Publicado em: 2005
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6. Hamster activity and estrous cycles: control by a single versus multiple circadian oscillator(s).
Running activity onset and estrous onset were recorded for hamsters exposed to progressively shorter daily light/dark (T) cycles. The period of the estrous cycle was a quadruple multiple of the period of the activity rhythm during entrainment to T cycles of 23.5-21.5 hr. There was no evidence of desynchronization of the activity and estrus rhythms. The very
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7. Running enhances neurogenesis, learning, and long-term potentiation in mice
Running increases neurogenesis in the dentate gyrus of the hippocampus, a brain structure that is important for memory function. Consequently, spatial learning and long-term potentiation (LTP) were tested in groups of mice housed either with a running wheel (runners) or under standard conditions (controls). Mice were injected with bromodeoxyuridine to label
The National Academy of Sciences.
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8. Central overexpression of leptin antagonist reduces wheel running and underscores importance of endogenous leptin receptor activity in energy homeostasis
We used recombinant adeno-associated virus (rAAV)-mediated gene delivery to overexpress a mutant of rat leptin yielding a protein that acts as a neutral leptin receptor antagonist. The long-term consequences of this overexpression on body weight homeostasis and physical activity, as assessed by voluntary wheel running (WR), were determined in F344 × Brown N
American Physiological Society.
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9. Circadian organization of the estrous cycle of the golden hamster.
In constant dim illumination the hamster estrous cycle free-runs with a period that is a quadruple multiple of the concurrently recorded rhythm of wheel-running activity; both activity and estrous cycles are generated by biological clocks. Maintenance of stable phase angle differences between heat onset and running onset before and after treatment with deute
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10. An effect of castration and testosterone replacement on a circadian pacemaker in mice (Mus musculus).
Castration of mice in freerunning conditions (total darkness, DD) causes a reduction of running wheel activity in the beginning of the active period (alpha) and stimulates activity at the end of alpha. Simultaneously, the period (tau) of the freerunning rhythm is increased. Both effects are abolished by implantation of a Silastic capsule from which a physiol
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11. Voluntary wheel running restores endothelial function in conduit arteries of old mice: direct evidence for reduced oxidative stress, increased superoxide dismutase activity and down-regulation of NADPH oxidase
Habitual aerobic exercise is associated with enhanced endothelium-dependent dilatation (EDD) in older humans, possibly by increasing nitric oxide bioavailability and reducing oxidative stress. However, the mechanisms involved are incompletely understood. EDD was measured in young (6–8 months) and old (29–32 months) cage control and voluntary wheel runnin
Blackwell Science Inc.
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12. Is energy expenditure in the hamster primarily under homeostatic or circadian control?
1. In order to discriminate between homeostatic and circadian control of energy expenditure, this paper considers whether a shorter circadian cycle will produce a proportional reduction in energy expenditure (so that expenditure per unit time is conserved) or alternatively whether energy expenditure will be compressed into the shorter cycle (so that energy e