Browsing by Subject "Corticosterone"
Now showing items 1-10 of 43
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Acute restraint differently alters defensive responses and fos immunoreactivity in the rat brain
(Elsevier B.V., 2012-06-15)Results from a previous study show that rats exposed to acute restraint display anxiogenic-like behavior, evidenced by facilitation of avoidance responses in the elevated T-maze (ETM) model of anxiety. in contrast, escape ...
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Ação da Betametasona em Ratas Prenhes: Impacto sobre os Níveis de Corticosterona e Glândulas Adrenais Maternas e Fetais
(Federação Brasileira das Sociedades de Ginecologia e Obstetrícia, 2001-12-01)Purpose: the repetitive use of antenatal corticosteroid therapy for acceleration of fetal lung maturation has been common in cases at risk of preterm delivery. We studied the corticosterone levels at term and the morphologic ...
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Adrenalectomy abolishes the food-induced hypothalamic serotonin release in both normal and monosodium glutamate-obese rats
(Elsevier B.V., 2002-08-15)Corticosteroids influence energy homeostasis through centrally-mediated stimulation of energy intake and inhibition of expenditure, while central serotonin (5-HT) has opposite effects. Both serotonergic dysfunction and ...
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Análise dos efeitos da exposição ao ambiente enriquecido sobre as alterações do metabolismo desencadeadas pelo estresse neonatal em ratos wistar
(Universidade Federal de São Paulo (UNIFESP), 2018-12-05)Atualmente numerosos estudos fornecem evidencias de que desordens psiquiátricas, metabólicas, cardíaca e imunológica, tem sua gênese determinada pelo estresse neonatal. O estresse neonatal mediado pela ativação do eixo ...
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Are endogenous sex hormones related to DNA damage in paradoxically sleep-deprived female rats?
(Elsevier B.V., 2010-02-01)The aim of this investigation was to evaluate overall DNA damage induced by experimental paradoxical sleep deprivation (PSD) in estrous-cycling and ovariectomized female rats to examine possible hormonal involvement during ...
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Avaliação da resposta de estresse em ratas submetidas ao estresse crônico e a múltiplos ciclos de superovulação
(Universidade Federal de São Paulo, 2018-03-23)It Is Estimated That Infertility Affects About 10-15% Of Couples Of Childbearing Age Within The World Population, While Annually, 7-10% Of Couples Of Reproductive Age In Brazil Rely On Services Specialized In Fertility ...
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Avaliação dos efeitos do estresse e da administração de corticosterona em diferentes modelos de memória
(Universidade Federal de São Paulo (UNIFESP), 2016-05-04)Memory can be affected by several factors, among them stress. Acute stress, depending on the moment it is applied, may facilitate or impair memory. Chronic stress may affect memory according to their duration and intensity, ...
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Chronic corticosterone administration facilitates aversive memory retrieval and increases GR/NOS immunoreactivity
(Elsevier B.V., 2014-07-01)Glucocorticoids are stress hormones that mediate the organism's reaction to stress. It has been previously proposed that the facilitation of emotional aversive conditioning induced by these hormones may involve nitric ...
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Chronic stress during paradoxical sleep deprivation increases paradoxical sleep rebound: Association with prolactin plasma levels and brain serotonin content
(Elsevier B.V., 2008-10-01)Previous studies suggest that stress associated to steep deprivation methods can affect the expression of steep rebound. in order to examine this association and possible mechanisms, rats were exposed to footshock stress ...
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Chronic unpredictable mild stress alters an anxiety-related defensive response, Fos immunoreactivity and hippocampal adult neurogenesis
(Elsevier B.V., 2013-08-01)Previous results show that elevated T-maze (ETM) avoidance responses are facilitated by acute restraint. Escape, on the other hand, was unaltered. To examine if the magnitude of the stressor is an important factor influencing ...
