METYRAPONE AND PYROGEN TESTS IN HYPERADRENOCORTICISM: EVALUATION OF BLOOD CORTICOTROPHIN LEVELS

Autor: LITTA-MODIGNANI, R., BADONI, M.
Zdroj: Journal of Endocrinology; October 1968, Vol. 42 Issue: 2 p245-251, 7p
Abstrakt: Corticotrophin in blood was measured in four normal subjects and four patients suffering from Cushing's syndrome. The basal values of both groups were not statistically different. A standard Piromen test produced a statistically significant increase in normal patients; inconsistent results were obtained in hyperadrenocorticism. A metyrapone test showed significantly increased blood levels of ACTH in the normal subjects and a lower response in the patients with Cushing's syndrome. The Piromen test was also performed after 2 days of metyrapone administration (metyrapone-Piromen test). This test in normal patients induced an ACTH release that may be considered maximal (up to 17 m-u./100 ml.) presumably by relaxing the cortisol 'brake' on the hypothalamus; the response in the patients with hyperadrenocorticism was negative.
Databáze: Supplemental Index