[Circadian rhythm of free catecholamine excretion in disturbed adrenal function (author's transl)].
The daily time course of urinary catecholamine excretion was determined for hyperactivity of the sympathoadrenal system (3 phaeochromocytomas, 1 neuroblastoma), disturbed adrenal function (M. Addison and partial adrenal insufficiency), bilateral adrenalectomy (one patient), in 8 healthy patients receiving dexamethasone, and in a control group. All groups showed a circadian rhythm of catecholamine excretion. In the patients with phaeochromocytoma, the excretion of catecholamines and vanilmandelic acid showed a shift of phase compared with the control group. In patients with hyperfunction of the sympathoadrenal system, catecholamines and vanilmandelic acid fluctuated with similar amplitudes, whereas in healthy patients vanilmandelic acid and dopamine showed much smaller fluctuations of concentration than adrenaline and noradrenaline.
D000307:Adrenal Gland Diseases / Q000503:physiopathology* / Q000652:urine; D000310:Adrenal Gland Neoplasms / Q000503:physiopathology* / Q000652:urine; D000328:Adult; D000368:Aged; D002395:Catecholamines / Q000652:urine*; D002940:Circadian Rhythm; D006801:Humans; D008875:Middle Aged; D009447:Neuroblastoma / Q000503:physiopathology / Q000652:urine; D010673:Pheochromocytoma / Q000503:physiopathology / Q000652:urine
D002395:Catecholamines
Untersuchungen zur circadianen Rhythmik der Ausscheidung freier Katecholamine bei gestörter Nebennierenfunktion.