Metyrapone is a glucocorticoid synthesis inhibitor; a standard in assessing adrenal gland function especially in response to stress, as well as pituitary gland function. In addition to acting as a glucocorticoid synthesis inhibitor, Metyrapone also inhibits cytochrome P450-mediated prostaglandin ω/ω-1 hydroxylase activity and impairs learning and memory. Data shows results in activation of the sleep EEG and a robust decrease in quantitative delta sleep.
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Frontiers in immunology, 13, 864858-864858 (2022-07-06)
Diabetic patients have larger infarcts, worse neurological deficits, and higher mortality rate after an ischemic stroke. Evidence shows that in diabetes, the hypothalamic-pituitary-adrenal (HPA) axis was dysregulated and levels of cortisol increased. Based on the role of the HPA axis
FASEB journal : official publication of the Federation of American Societies for Experimental Biology, 35(4), e21489-e21489 (2021-03-19)
Psychosocial stressors can cause physical inactivity, cardiac damage, and hypotension-induced death in the mdx mouse model of Duchenne muscular dystrophy (DMD). Because repeated exposure to mild stress can lead to habituation in wild-type mice, we investigated the response of mdx
Learning & memory (Cold Spring Harbor, N.Y.), 11(2), 188-195 (2004-04-01)
Emotionally charged experiences alter memory storage via the activation of hormonal systems. Previously, we have shown that compared with rats trained for a massed spatial learning task in the water maze in warm water (25 degrees C), animals that were
Hormones and behavior, 62(4), 515-524 (2012-09-19)
A single exposure to some severe stressors causes sensitization of the hypothalamic-pituitary-adrenal (HPA) response to novel stressors. However, the putative factors involved in stress-induced sensitization are not known. In the present work we studied in adult male rats the possible
The Journal of experimental biology, 215(Pt 2), 314-323 (2011-12-23)
In their native environment, gulf toadfish excrete equal quantities of ammonia and urea. However, upon exposure to stressful conditions in the laboratory (i.e. crowding, confinement or air exposure), toadfish decrease branchial ammonia excretion and become ureotelic. The objective of this
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