单词 | metyrapone |
释义 | metyraponemetyrapone[mĕ-tēr´ah-pōn]me·tyr·a·pone(mĕ-tir'ă-pōn),metyraponeAn agent used to evaluate the hypothalamus-pituitary-adrenal axis, especially abnormal pituitary activity. Metyrapone inhibits 11-beta-hydroxylase, the final enzyme in cortisol synthesis. The inhibition results in accumulation of 11-deoxycortisol in the adrenal cortex, resulting in decreased negative feedback of ACTH synthesis by the pituitary; it therefore also results in increased ACTH and increased 11-deoxycortisol, as well as its metabolite, tetrahydrocortisol, which is measured in the urine as so-called Porter-Silber compounds.metyraponeA diagnostic tool for evaluating the hypothalamus-pituitary-adrenal 'axis', especially, abnormal pituitary activitymetyraponeAn ALDOSTERONE inhibitor drug used to treat aldosterone-induced OEDEMA and CUSHING'S syndrome. A brand name is Metopirone. |
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