RESULTS OF ADMINISTRATION OF ANTERIOR PITUITARY ADRENOCORTICOTROPIC HORMONE TO A NORMAL HUMAN SUBJECT*,
HAROLD L. MASON, PH.D.,
MARSCHELLE H. POWER, PH.D.,
EDWARD H. RYNEARSON, M.D.,
LETIZIA C. CIARAMELLI, M.D.,
CHOH HAO LI, PH.D. and
HERBERT M. EVANS, M.D.
Division of Biochemistry, Mayo Foundation and the Mayo Clinic Rochester, Minnesota
Division of Medicine, Mayo Foundation and the Mayo Clinic Rochester, Minnesota
Institute of Experimental Biology, University of California Berkeley, California
STUDIES on animals have shown that purified adrenocorticotropichormone (ACTH) of the anterior lobe of the pituitary body isable to stimulate the adrenal cortex of the intact or hypophysectomizedanimal to increased function and produce results similar tothose that have been produced by administration of crystallineadrenocortical hormones (2, 11, 14, 16, 28, 39, 40, 41, 51,52). The primary aim of this study was to determine what changesmight occur in the excretion of urinary steroids as the resultof administration of ACTH to a normal human subject. Observationsalso were made on many other factors that are known to be influencedby activity of the adrenal cortex.
It is well known that most patients with tumors or hyperplasiaof the adrenal cortex excrete abnormally large amounts of 17-ketosteroidsin the urine (9,15, 36). Under conditions which presumably stimulatethe adrenal cortex to increased activity, an increased excretionof material with chemical and physiologic properties similarto those of the 11-oxygenated hormones of the cortex has beenobserved (6, 50). Relatively large amounts of pregnanediol havebeen found in the urine in cases in which hyperfunction of theadrenal cortex has been associated with an absence of ovarianfunction (33). Estrone has been isolated from extracts of theadrenal gland (1) and in a few instances, large amounts of estrogenshave been found in the urine in cases of tumor of the adrenalcortex (19, 20, 33). These observations suggested that stimulationof the adrenal cortex with ACTH would result in an increasein the excretion of 17-ketosteroids and cortin-like materialand possibly in the excretion of increased amounts of estrogenand pregnanediol. Determinations of the quantitative variationsin these urinary steroids were made and, so far as it was possibleto do so by isolation procedures, the qualitative variationswere studied.
* Abridgment of thesis submitted by Dr. Ciaramelli to the Facultyof the Graduate School of the University of Minnesota in partialfulfillment of the requirements for the degree of M.S. in Medicine.
The anterior pituitary adrenocorticotropic hormone used in thisstudy was produced by two of the authors, Drs. Choh Hao Li andHerbert M. Evans, who were aided by a special grant from WesleyW. West, of Houston, Texas, to the Institute of ExperimentalBiology, University of California.
Received October 10, 1947.
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