生物活性 | |||
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描述 | Metyrapone is an inhibitor of cytochrome P450-mediated ω/ω-1 hydroxylase activity and CYP11B1. Administration of metyrapone to male rats induces the expression of the cytochrome P450 sub-family 3A (CYP3A)[3]. Metyrapone protects against ischemia- and excitotoxicity-induced brain damages in rodents[4]. Metyrapone is a glucocorticoid synthesis inhibitor largely used to study glucocorticoid involvement in stress and memory processes. Mice received first a saline injection and 2days later a 150mg/kg metyrapone injection. Metyrapone provoked immediately a waking effect together with a 3-h decrease in slow-wave sleep (SWS) and a 5-h decrease in rapid eye movement sleep (REM sleep)[5]. A significant rise in ACTH (adrenocorticotropin) concentration compared to basal values was found at 60 and 120 min following oral metyrapone administration[6]. Metyrapone was well tolerated and did not exacerbate cocaine's physiological effects[7]. Metyrapone (150 mg/kg) acutely reduced stress-induced physiological response in freely behaving rats independently from glucocorticoids and neurosteroids[8]. |
临床研究 | |||||
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NCT号 | 适应症或疾病 | 临床期 | 招募状态 | 预计完成时间 | 地点 |
NCT00004334 | - | Unknown | - | United States, Michigan ... 展开 >> University of Michigan Health Systems Recruiting Ann Arbor, Michigan, United States, 48109 Contact: Monica N. Starkman 313-764-6168 收起 << | |
NCT00310427 | Alcohol Dependence ... 展开 >> Alcoholism 收起 << | Phase 2 | Completed | - | United States, Maryland ... 展开 >> National Institutes of Health Clinical Center, 9000 Rockville Pike Bethesda, Maryland, United States, 20892 收起 << |
NCT00310427 | - | Completed | - | - |
实验方案 | |||
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1mg | 5mg | 10mg | |
1 mM 5 mM 10 mM |
4.42mL 0.88mL 0.44mL |
22.10mL 4.42mL 2.21mL |
44.19mL 8.84mL 4.42mL |
参考文献 |
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