Running Response Of Rats
Mostrando 1-12 de 12 artigos, teses e dissertações.
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1. ACUTE EFFECT OF DIFFERENT TYPES OF EXERCISE ON NATRIURETIC PEPTIDES OF WISTAR RATS
RESUMO Introdução: O estudo dos efeitos de diferentes tipos de exercício físico na fisiologia cardiovascular está aumentando na literatura. Os muitos mecanismos de controle hemodinâmico incluem a liberação atrial de peptídeos natriuréticos. Embora amplas evidências demonstrem seus efeitos agudos e o aumento na sua concentração plasmática, não
Rev Bras Med Esporte. Publicado em: 29/07/2019
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2. Cardiac protein expression patterns are associated with distinct inborn exercise capacity in non-selectively bred rats
In the present study, we successfully demonstrated for the first time the existence of cardiac proteomic differences between non-selectively bred rats with distinct intrinsic exercise capacities. A proteomic approach based on two-dimensional gel electrophoresis coupled to mass spectrometry was used to study the left ventricle (LV) tissue proteome of rats wit
Braz J Med Biol Res. Publicado em: 11/01/2018
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3. Fat gain with physical detraining is correlated with increased glucose transport and oxidation in periepididymal white adipose tissue in rats
As it is a common observation that obesity tends to occur after discontinuation of exercise, we investigated how white adipocytes isolated from the periepididymal fat of animals with interrupted physical training transport and oxidize glucose, and whether these adaptations support the weight regain seen after 4 weeks of physical detraining. Male Wistar rats
Braz J Med Biol Res. Publicado em: 26/05/2015
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4. Effects of contextual fear conditioning and pentylenetetrazol on panic-like reactions induced by dorsal periaqueductal gray stimulation with N-methyl-D-aspartate
Electrical or chemical stimulation of the dorsal periaqueductal gray (DPAG) has been accepted as an animal model of panic attacks. This study investigates the influence of anticipatory anxiety in the occurrence of panic-like behavior induced by N-methyl-D-aspartate (NMDA) microinjection into the DPAG of rats. Behavioral (i.e., contextual fear conditioning) a
Psychology & Neuroscience. Publicado em: 2010-06
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5. 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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6. Anabolic steroid- and exercise-induced cardiac stress protein (HSP72) in the rat
The present study investigated the effects of exercise and anabolic-androgenic steroids on cardiac HSP72 expression. Male Wistar rats were divided into experimental groups: nandrolone exercise (NE, N = 6), control exercise (CE, N = 6), nandrolone sedentary (NS, N = 6), and control sedentary (CS, N = 6). Animals in the NE and NS groups received a weekly intra
Brazilian Journal of Medical and Biological Research. Publicado em: 2006-07
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7. A study on activities observed during interresponse time / Um estudo sobre as atividades nas quais sujeitos se engajam durante o intervalo entre respostas que produzem reforço
This study was an attempt to investigate possible relations between responding that is reinforced according to schedules based on a temporal parameter and performing other activities to which no reinforcement contingencies are programmed. These activities have been called adjunctive behavior, collateral behavior or interim activities. Two questions guided th
Publicado em: 2006
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8. 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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9. Impaired Skeletal Muscle β-Adrenergic Activation and Lipolysis Are Associated with Whole-Body Insulin Resistance in Rats Bred for Low Intrinsic Exercise Capacity
Rats selectively bred for high endurance running capacity (HCR) have higher insulin sensitivity and improved metabolic health compared with those bred for low endurance capacity (LCR). We investigated several skeletal muscle characteristics, in vitro and in vivo, that could contribute to the metabolic phenotypes observed in sedentary LCR and HCR rats. After
The Endocrine Society.
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10. Adipose tissue cellularity and lipolysis. Response to exercise and cortisol treatment.
Male rats a 5 wk of age were subjected to 13 wk of intensive treadmill running to study the effect of exercise on adipose tissue cellularity and lipolysis. Untrained controls of the same age remained sedentary in their cages for the duration of the experiment. Adipocyte numbers were similar in eqidiymal fat pads from trained and untrained rats (12.7 plus or
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11. 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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12. Surgical manipulation of the gut elicits an intestinal muscularis inflammatory response resulting in postsurgical ileus.
OBJECTIVE: To investigate the pathophysiologic mechanisms that lead to ileus after abdominal surgery. SUMMARY BACKGROUND DATA: The common supposition is that more invasive operations are associated with a more extensive ileus. The cellular mechanisms of postsurgical ileus remain elusive, and few studies have addressed the mechanisms. METHODS: Rats were subje