Corticosterone Hormone
Mostrando 1-12 de 87 artigos, teses e dissertações.
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1. Saffron (Crocus sativus) aqueous extract reverses the hypothalamus-pituitary-adrenal axis activity in rat model of post-traumatic stress disorder
Abstract Crocus sativus L., Iridaceae, has been used worldwide in traditional medicinefor treatment ofsome neurological disorderssuch as depression. Post-traumatic stress disorder is a mental disorder developed in peoplewho experience stressful events. Since stress has been proposed tocause thehypothalamic-pituitary-adrenal axis malfunction in post-traumatic
Rev. bras. farmacogn.. Publicado em: 17/10/2019
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2. Dexamethasone Regulates Macrophage and Cd4+Cd25+ Cell Numbers in the Chicken Spleen
Abstract Dexamethasone (DEX) is a corticoid hormone that is experimentally used to mimic the effects of increased levels of endogenous corticosterone observed during the stress response. Currently, stress is considered one of the major predisposing factors for diseases in the poultry industry. The aim of this study was to analyze the effects of DEX and/or of
Rev. Bras. Cienc. Avic.. Publicado em: 2016-03
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3. Deleterious effects of prepubertal corticosterone treatment on rat prostate
PURPOSE:To investigate the structural and functional changes induced by corticosterone (CORT) in the ventral prostrate (VP) of rats in order to study chronic stress effects in the prepubertal phase.METHODS:Wistar rats received daily saline or CORT injections during the pubertal period from the 5th to 25th day of postnatal life. The animals were distributed i
Acta Cir. Bras.. Publicado em: 2015-06
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4. Alterações agudas no metabolismo energético de ratos submetidos ao exercício resistido em escada
Atualmente, pesquisas com animais usam muitos protocolos de exercícios, com o objetivo de mimetizar as condições de exercícios realizados por humanos. Os protocolos de endurance (aeróbios) são estudados com grande frequência, no entanto algumas dificuldades são encontradas no sentido de produzir um protocolo de exercício resistido para animais. Algu
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 22/05/2012
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5. Psychological stress alters the ultrastructure and increases IL-1β and TNF-α in mandibular condylar cartilage
Psychological factors can be correlated with temporomandibular disorders (TMDs), but the mechanisms are unknown. In the present study, we examined the microstructural changes and expression of proinflammatory cytokines in mandibular condylar cartilage of the temporomandibular joint (TMJ) in a psychological stress animal model. Male Sprague-Dawley rats (8 wee
Braz J Med Biol Res. Publicado em: 2012-10
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6. Investigação das alterações do consumo de alimento palatável induzidas por trauma precoce em ratas fêmeas
Introduction: Chronic stress in adulthood increases anxiety and prones the individuals to use palatable foods as ¿comfort foods¿, which seems to be mediated by an altered functioning of the hypothalamus-pituitary-adrenal axis (HPA). We aimed at verifying if early life stress also affects anxiety, feeding behavior and stress responses in adult female rats.
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2012
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7. Paradoxical sleep deprivation is related to muscle atrophy and damages muscle recovery / A privação de sono paradoxal em ratos está associada a atrofia muscular e déficit na recuperação muscular
Introduction: Paradoxical sleep deprivation (PSD) in rats is able to induce reductions in body mass and body fat, due to increased secretion of pituitary-adrenal axis hormones. Considering that PSD is also associated with a decrease in anabolic hormones, skeletal muscle can also be strongly influenced, causing atrophy damaging its recovery after a lesion. Ob
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 27/07/2011
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8. Effect of social instigation and aggressive behavior on hormone levels of lactating dams and adult male Wistar rats
Among rodents, maternal aggression in the postpartum period represents a species-typical adaptation, but when aggressive behavior increases beyond this adaptive level, it can represent a model of excessive aggression. This study assessed the neuroendocrine response of lactating rats and socially instigated male rats. The aim of the present study was to asses
Psychology & Neuroscience. Publicado em: 2011-06
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9. A high corticosterone/DHEA-s ratio in young rats infected with Trypanosoma cruzi is associated with increased susceptibility
We have previously established that young male rats are more susceptible to the effects of Trypanosoma cruzi infection than adult rats. To explore underlying age-associated differences in disease outcome, we simultaneously assessed hormone levels and cytokine release throughout the acute infection period in young and adult rats infected with T. cruzi. Young
Memórias do Instituto Oswaldo Cruz. Publicado em: 2011-06
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10. Effects of a hydroalcoholic extract of Turnera diffusa Willd. ex Schult., Turneraceae, in tests for adaptogenic activity
The objective of the present study was to assess whether Turnera diffusa Willd. ex Schult., Turneraceae, (TD), plant known in popular medicine as tonic and aphrodisiac, has other effects that are characteristic of an adaptogen substance, such as improvement of the memory and reduction of the damage caused by stress. We carried out an initial screening to det
Revista Brasileira de Farmacognosia. Publicado em: 25/02/2011
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11. Radiographic, ultrasound and endocrine evaluation of the reproductive cycle in red-foot tortoises (Geochelone carbonaria, SPIX, 1824) and yellow-foot tortoises (Geochelone denticulata, Lineu, 1766) / Avaliação radiográfica, ultrassonográfica e endócrina do ciclo reprodutivo de jabutis-piranga (Geochelone carbonaria, SPIX, 1824) e jabutis-tinga (Geochelone denticulata, Lineu, 1766)
The main objective of this study was to evaluate the reproductive cycle of red-foot (Geochelone carbonaria, SPIX, 1824) and yellow-foot tortoises (Geochelone denticulata, Lineu, 1766) using minimally invasive clinical and laboratory methods, such as radiographic and ultrasound images and hormone dosages. Seven G. carbonaria and 5 G. denticulata healthy femal
Publicado em: 2009
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12. Different stress modalities result in distinct steroid hormone responses by male rats
Since both paradoxical sleep deprivation (PSD) and stress alter male reproductive function, the purpose of the present study was to examine the influence of PSD and other stressors (restraint, electrical footshock, cold and forced swimming, N = 10 per group) on steroid hormones in adult Wistar male rats. Rats were submitted to chronic stress for four days. T
Brazilian Journal of Medical and Biological Research. Publicado em: 2004-06