Repeated Stress
Mostrando 13-24 de 125 artigos, teses e dissertações.
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13. Effects of dietary grape seed on performance and some metabolic assessments in Japanese quail with different plumage colors exposed to heat stress
ABSTRACT The objective of this study was to determine the effects of grape seed (GS) supplementation to basal diet on performance, carcass characteristics, some biochemical parameters, and antioxidant status of tissues of Japanese quail in growth phase with different plumage colors exposed to heat stress (HS). A total of 144 eight-day-old Japanese quail incl
R. Bras. Zootec.. Publicado em: 25/06/2018
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14. Melatonin prevents hyperglycemia in a model of sleep apnea
Objective Obstructive sleep apnea is a common disorder associated with aging and obesity. Apneas cause repeated arousals, intermittent hypoxia, and oxidative stress. Changes in glucolipidic profile occur in apnea patients, independently of obesity. Animal models of sleep apnea induce hyperglycemia. This study aims to evaluate the effect of the antioxidants
Arch. Endocrinol. Metab.. Publicado em: 2015-02
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15. Estimation of fatigue lives of fly ash modified dense bituminous mixtures based on artificial neural networks
This study deals with estimation of fatigue lives of bituminous mixtures using artificial neural networks. Different types of fly ash were used as filler replacing agents in a dense bituminous mixture. Fatigue tests were performed using repeated load indirect tensile test apparatus under controlled stress conditions. For determination of fatigue life, the in
Mat. Res.. Publicado em: 01/04/2014
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16. Effect of ozone oxidative preconditioning in preventing early radiation-induced lung injury in rats
Ionizing radiation causes its biological effects mainly through oxidative damage induced by reactive oxygen species. Previous studies showed that ozone oxidative preconditioning attenuated pathophysiological events mediated by reactive oxygen species. As inhalation of ozone induces lung injury, the aim of this study was to examine whether ozone oxidative pre
Braz J Med Biol Res. Publicado em: 27/09/2013
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17. Effects of acupuncture and electroacupuncture on estradiol-induced inflammation and oxidative stress in health rodents
PURPOSE:To investigate the effects of classical acupuncture (Ac) and electroacupuncture (EAc) on estradiol-induced inflammation and oxidative stress in health rodents. METHODS: Twenty-four eight-week old female rats were treated with estradiol valerate (EV) 4.0 mg i.m. single dose and randomly assigned to four groups (n=6): G1(control), G2 (Ac), G3 (EAc 2 Hz
Acta Cir. Bras.. Publicado em: 2013-08
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18. Repeated stressors do not provoke habituation or accumulation of the stress response in the catfish Rhamdia quelen
Os peixes, tanto em condições de cultivo quanto em condições experimentais ou na natureza, podem experimentar situações de estresse. Peixes submetidos a estressores sequenciais podem apresentar acumulação de sua resposta de cortisol com aumento dos níveis desse hormônio em cada resposta sucessiva ou habituação da resposta do cortisol, com reduç�
Neotrop. ichthyol.. Publicado em: 18/06/2013
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19. 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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20. Staging and neuroprogression in bipolar disorder: a systematic review of the literature
INTRODUCTION: The use of clinical staging models is emerging as a novel and useful paradigm for diagnosing severe mental disorders. The term "neuroprogression" has been used to define the pathological reorganization of the central nervous system along the course of severe mental disorders. In bipolar disorder (BD), neural substrate reactivity is changed by r
Rev. Bras. Psiquiatr.. Publicado em: 2013-03
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21. Estresse precoce e alterações do eixo hipotálamo-pituitária-adrenal (HPA) na depressão. / Early Life Stress and alterations of the Hypothalamic-Pituitary-Adrenal (HPA) axis in depression.
Introduction: Several studies suggest that stress in early stages of development can induce persistent changes in the ability of the Hypothalamic-Pituitary-Adrenal (HPA) axis to respond to stress in adulthood. The imbalance of cortisol has been identified as a biological correlate of depressive disorders. These abnormalities seem to be related to changes in
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 30/03/2012
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22. PREDNISONA E MELOXICAM NO TRATAMENTO DE RATOS SUBMETIDOS AO TRAUMA AGUDO DA MEDULA ESPINHAL / Prednisone and meloxicam in the treatment of rats submitted to compressive spinal cord injury
Considering the relevance of study of traumatic spinal cord injury in humans and animals, the aim of the study was investigated the use of the prednisone and meloxicam in treatment of rats submitted the experimental model of acute spinal cord injury with 2Fr Fogarty catheter with evaluation of oxidative stress, Neurological tests and histological exam. Ninet
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 29/02/2012
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23. EFEITO DA FOTOATIVAÇÃO PROLONGADA DE ADESIVOS AUTOCONDICIONANTES NA ADESÃO À DENTINA / Effect of prolonged exposure time of one-step self-etching in dentinbonding
This study evaluated the effect of prolonged exposure times on immediate (IM) and 6-month (6M) adhesive properties: degree of conversion within hybrid layer (DC), silver nitrate uptake (SNU) and resin-dentin bond strenght (μTBS) for three one-step self-etch adhesive systems (Adper Easy Bond [EB], Clearfil S3 Bond [CS3] and Go [GO]).Ninety caries-free ex
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 24/02/2012
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24. Assessment of cumulative damage by using ultrasonic C-scan on carbon fiber/epoxy composites under thermal cycling
In recent years, structural composites manufactured by carbon fiber/epoxy laminates have been employed in large scale in aircraft industries. These structures require high strength under severe temperature changes of -56° until 80 °C. Regarding this scenario, the aim of this research was to reproduce thermal stress in the laminate plate developed by temper
Materials Research. Publicado em: 19/06/2012