Topic
Glucocorticoid
About: Glucocorticoid is a research topic. Over the lifetime, 14073 publications have been published within this topic receiving 646556 citations. The topic is also known as: glucocorticosteroid & glucocorticoids.
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TL;DR: In this paper, a randomized, double-blind trial involving 135 patients with severe eosinophilic asthma, compared the glucocorticoid-sparing effect of mepolizumab (at a dose of 100 mg) with that of placebo administered subcutaneously every 4 weeks for 20 weeks.
Abstract: Background Many patients with severe asthma require regular treatment with oral glucocorticoids despite the use of high-dose inhaled therapy. However, the regular use of systemic glucocorticoids can result in serious and often irreversible adverse effects. Mepolizumab, a humanized monoclonal antibody that binds to and inactivates interleukin-5, has been shown to reduce asthma exacerbations in patients with severe eosinophilic asthma. Methods In a randomized, double-blind trial involving 135 patients with severe eosinophilic asthma, we compared the glucocorticoid-sparing effect of mepolizumab (at a dose of 100 mg) with that of placebo administered subcutaneously every 4 weeks for 20 weeks. The primary outcome was the degree of reduction in the glucocorticoid dose (90 to 100% reduction, 75 to less than 90% reduction, 50 to less than 75% reduction, more than 0 to less than 50% reduction, or no decrease in oral glucocorticoid dose, a lack of asthma control during weeks 20 to 24, or withdrawal from treatment)....
1,249 citations
1,245 citations
TL;DR: Evidence is presented that the glucocorticoid receptor (GR) and transcription factor Jun/AP-1 can reciprocally repress one another's transcriptional activation by a novel mechanism that is independent of DNA binding.
1,241 citations
TL;DR: Repeated daily restraint stress for 21 days caused apical dendrites of CA3 pyramidal neurons to atrophy, while basal CA3 dendrite levels did not change.
1,225 citations
TL;DR: There is some evidence that suggests that whereas comparator elements are not reset during stress, a comparator element is reset during the course of the circadian rhythm so that different basal levels of steroid are achieved.
Abstract: THE LEVEL of activity within the adrenocortical system is determined by endogenous (circadian) and exogenous (stress) excitatory inputs, by inhibitory neural modulation and also by corticosteroid negative feedback control. Although corticosteroid feedback on (CRF and) ACTH secretion is easily demonstrated by treatment of mammals with exogenous glucocorticoids and subsequent measurement of either basal or stimulated activity in the system, the physiological role of this negative feedback is not so easily discerned. It is likely that most disagreement about feedback regulation of ACTH secretion has arisen because of three characteristics of the system. First, it now appears that there are at least three distinct time domains in which negative feedback by glucocorticoids on ACTH secretion are exerted. These can be distinguished at the level of the corticotrope in vitro by the different cellular effects of glucocorticoid action. Thus, interpretation of results of in vivo experiments is critically dependent on...
1,177 citations