Repeated Restraint Stress
Mostrando 1-12 de 23 artigos, teses e dissertações.
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1. Brief daily postpartum separations from the litter alter dam response to psychostimulants and to stress
Neonatal handling induces several behavioral and neurochemical alterations in pups, including decreased responses to stress and reduced fear in new environments. However, there are few reports in the literature concerning the behavioral effects of this neonatal intervention on the dams during the postpartum period. Therefore, the aim of the current study was
Braz J Med Biol Res. Publicado em: 24/05/2013
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2. Effects of simultaneous exposure to stress and nicotine on nicotine-induced locomotor activation in adolescent and adult rats
Preclinical studies have shown that repeated stress experiences can result in an increase in the locomotor response to the subsequent administration of drugs of abuse, a phenomenon that has been termed behavioral cross-sensitization. Behavioral sensitization reflects neuroadaptive processes associated with drug addiction and drug-induced psychosis. Although
Brazilian Journal of Medical and Biological Research. Publicado em: 2012-01
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3. INTERAÇÕES ENTRE O ESTRESSE REPETIDO E CLOMIPRAMINA: DIFERENNTES RESPOSTAS EM RATOS MACHOS E FÊMEAS / INTERACTION BETWEEN REPEATED STRESS AND CLOMIPRAMINE: DIFERENCE RESPONSE IN MALE AND FEMALE RATS
O estresse pode ser definido como uma variedade de estímulos fisiológicos e psicológicos que podem ter efeitos diretos ou indiretos sobre a função corporal. Neste contexto o estresse repetido ou situações estressantes podem induzir ansiedade e depressão. Diferentes respostas quanto ao estresse repetido e tratamento antidepressivo são observadas em m
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 14/10/2011
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4. Prior exposure to stress delays extinction but does not modify reinstatement of nicotine-induced conditioned place preference
Studies in humans suggest that exposure to stress is related to relapse to tobacco use. The reinstatement of conditioned place preference (CPP) provides a simple, noninvasive and easy approach to investigate the mechanisms for drug relapse. The present study investigated whether repeated exposure to stress could change the extinction and reinstatement of nic
Psychology & Neuroscience. Publicado em: 2010-06
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5. Effect of acute and repeated restraint stress on glucose oxidation to CO2 in hippocampal and cerebral cortex slices
It has been suggested that glucocorticoids released during stress might impair neuronal function by decreasing glucose uptake by hippocampal neurons. Previous work has demonstrated that glucose uptake is reduced in hippocampal and cerebral cortex slices 24 h after exposure to acute stress, while no effect was observed after repeated stress. Here, we report t
Publicado em: 2010
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6. Effect of repeated stress on novelty-induced antinociception in rats
There is extensive evidence that acute stress induces an analgesic response in rats. On the other hand, repeatedly stressed animals may present the opposite effect, i.e., hyperalgesia. Furthermore, exposure to novelty is known to induce antinociception. The effects of repeated restraint stress on nociception after exposure to novelty, as measured by the tail
Publicado em: 2010
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7. Effect of repeated restraint stress on memory in different tasks
The present study investigated the effect of repeated stress applied to female rats on memory evaluated by three behavioral tasks: two-way shuttle avoidance, inhibitory avoidance and habituation to an open field. Repeated stress had different effects on rat behavior when different tasks were considered. In the two-way active avoidance test the stressed anima
Publicado em: 2010
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8. Interaction between repeated restraint stress and concomitant midazolam administration on sweet food ingestion in rats
Emotional changes can influence feeding behavior. Previous studies have shown that chronically stressed animals present increased ingestion of sweet food, an effect reversed by a single dose of diazepam administered before testing the animals. The aim of the present study was to evaluate the response of animals chronically treated with midazolam and/or submi
Publicado em: 2010
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9. Lipid peroxidation and total radical-trapping potential of the lungs of rats submitted to chronic and sub-chronic stress
Exposure to stress induces a cluster of physiological and behavioral changes in an effort to maintain the homeostasis of the organism. Long-term exposure to stress, however, has detrimental effects on several cell functions such as the impairment of antioxidant defenses leading to oxidative damage. Oxidative stress is a central feature of many diseases. The
Publicado em: 2010
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10. Lipid peroxidation and total radical-trapping potential of the lungs of rats submitted to chronic and sub-chronic stress
Exposure to stress induces a cluster of physiological and behavioral changes in an effort to maintain the homeostasis of the organism. Long-term exposure to stress, however, has detrimental effects on several cell functions such as the impairment of antioxidant defenses leading to oxidative damage. Oxidative stress is a central feature of many diseases. The
Brazilian Journal of Medical and Biological Research. Publicado em: 2004-02
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11. c-Fos expression induced by electroacupuncture at the Zusanli point in rats submitted to repeated immobilization
In laboratory animals, acupuncture needs to be performed on either anesthetized or, if unanesthetized, restrained subjects. Both procedures up-regulate c-Fos expression in several areas of the central nervous system, representing therefore a major pitfall for the assessment of c-Fos expression induced by electroacupuncture. Thus, in order to reduce the effec
Brazilian Journal of Medical and Biological Research. Publicado em: 2003-12
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12. Effect of repeated stress on novelty-induced antinociception in rats
There is extensive evidence that acute stress induces an analgesic response in rats. On the other hand, repeatedly stressed animals may present the opposite effect, i.e., hyperalgesia. Furthermore, exposure to novelty is known to induce antinociception. The effects of repeated restraint stress on nociception after exposure to novelty, as measured by the tail
Brazilian Journal of Medical and Biological Research. Publicado em: 2001-02