results results showed that dex 1 significantly increased, while dex 30 and groups treated with zinc 10 mg/kg and zinc 20 mg/kg decreased total immobility time as compared to that of saline group. also there was a significant decrease of total immobility time when zinc administered to rats already received dex 1, compared with that of control group. conclusions the current study findings sugges...

objective(s) this study was conducted to evaluate the effects of niacin on glucocorticoid-induced dyslipidemia and fatty liver in rats. materials and methods twenty four adult male rats were divided randomly into four equal groups: 1- normal saline (control), 2- dexamathasone 0.125 mg/kg/day, i.m., 3- dexamathasone + niacin 200 mg/kg/day, oral gavages, 4- niacin. after 2 weeks, serum total chol...

recently, several patients have been reported with various signs of encephalopathy and high thyroid antibody levels together with good responsiveness to glucocorticoid therapy. despite the various clinical presentations, these cases have been termed “hashimoto encephalopathy” (he). although all of the pathogenic components have not yet been clearly elucidated, it is believed that brain vasculit...

conclusions in contrast to the findings in humans and certain other species, glucocorticoid administration caused anabolic effect on the cortical bone of tibia diaphysis bone in rats. results glucocorticoid-treated rats showed weight loss and considerable mortality (21%). the biomechanical properties (maximum force) of glucocorticoid-treated rats in groups 4 (62 ± 2.9), 6 (63 ± 5.1), and 7 (60 ...

introduction: the plethora of studies indicated that there is a cross talk relationship between harmaline and serotonergic (5-ht) system on cognitive and non-cognitive behaviors. thus, the purpose of this study is to assess the effects of hippocampal 5-ht4 receptor on memory acquisition deficit induced by harmaline.  methods: harmaline was injected peritoneally, while 5-ht4 receptor agonist (rs...

background glucocorticoids taken orally increase the risk of fractures. it has been noted that a dose as low as 2.5 mg/day increases the risk of vertebral fracture. what is less clear is the possible influence of other risk factors for osteoporosis on the presence of non-vertebral fractures in patients taking glucocorticoids. objectives a cross-sectional study, performed on 513 men and women fr...

introduction: recent studies suggest that glucocorticoids modulate memory reconsolidation. moreover, cholinergic system is involved in memory reconsolidation. since glucocorticoids interact with brain cholinergic system in modulating memory processing, we investigated whether glucocorticoid influences on the reconsolidation of emotionally arousing training depend on the cholinergic system. meth...

one of the main components of the stress system is hypothalamus- pituitary-adrenal (hpa) axis. acute activation of µ-opioid receptors increases the activity of the hpa axis, leading to release of acth and corticosterone. glucocorticoids can change behaviors, depend on age but there were no evidences about the interaction between age, opioid system and glucocorticoids. in this experiment, effect...

background: glucocorticoids have several benefits in large animal medicine but apart from their benefits, there are several disadvantages attributed to the use of these drugs. among the disadvantages, disturbance in protein metabolism is one of the side effects of glucocorticoids which has been investigated in human and laboratory animals. objectives: there are no information regarding the effe...