Most patients with corticotropin-independent Cushing's syndromehave an adrenal adenoma or carcinoma,1 but a few have bilateraladrenal hyperplasia. Three patients with Cushing's syndromeand corticotropin-independent bilateral adrenal hyperplasia2,3,4and two patients with adrenal adenomas5,6 in whom food stimulatedcortisol secretion have been described; the abnormal adrenaltissues in these patients aberrantly overexpressed receptorsfor gastric inhibitory polypeptide.6,7 We describe a patientwith Cushing's syndrome and corticotropin-independent bilateraladrenal hyperplasia in whom endogenous catecholamines, actingthrough an ectopic adrenal -adrenergic receptor, stimulatedcortisol secretion; the hyperadrenocorticism was inhibited by-blockade.
Case Report
A 56-year-old man presented with a left ileofemoral thrombophlebitis,an . . . [Full Text of this Article]
Methods
Clinical Studies
Assays
-AdrenergicReceptor Binding and Adenylyl Cyclase Assays
Results
In Vivo Studies
In Vitro Studies
-AdrenergicReceptor Binding
Adrenal-Membrane Adenylyl Cyclase Activity
Discussion
Source Information
From the Division of Endocrinology and the Department of Medicine, Research Center, Pavillon Hôtel-Dieu, Centre Hospitalier de l'Université de Montréal (A.L., J.T., P.H.), and the Research Group on the Autonomic Nervous System, Department of Biochemistry, Université de Montréal (G.R., M.B.) both in Montreal.
Address reprint requests to Dr. Lacroix at the Research Center, Pavillon Hôtel-Dieu, CHUM, 3850 St.-Urbain, Montreal, QC H2W 1T8, Canada.
References
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