We have studied the effects of rifampicin on the overnight 1-mg dexamethasone
suppression test usually employed to exclude suspected Cushing's syndrome. Previous …

Adrenocortical suppression tests, based on the fall in urinary 17-hydroxy-corticosteroid
excretion during the oral administration of dexamethasone, were found to be of value in the …

The effect of oral dexamethasone on the plasma content of cortisol and dexa‐methasone
was investigated in 175 patients suspected of having Cushing's syndrome. Plasma …

In this study, we evaluated the responses of the pituitary-adrenal axis to the suppressive
action of dexamethasone by relating plasma dexamethasone (Dex) and cortisol (F) levels in …

Serum cortisol levels were measured the morning after the administration of 1 mg of
dexamethasone. Only 5 of 190 subjects had serum cortisol levels greater than 2 μg/dL …

Forty four subjects (23 obese controls, 11 patients with possible Cushing's syndrome, and
10 patients with definite Cushing's syndrome) underwent low dose (0 X 5 mg every six hours …

In a rapid screening test for Cushing's syndrome, plasma cortisol was measured by a simple
fluorometric method. We have verified the value of the overnight suppression test as a …

Past attempts to test suppressibility of pituitary-adrenal function by the use of exogenous
corticoids have yielded inconsistent findings in patients with Cushing's syndrome. The …

We hereby describe a patient in whom chronic rifampicin treatment led to a misdiagnosis of
Cushing's syndrome. He had long-standing insulin-dependent diabetes mellitus and active …

A study of the adrenocortical response to the injection of corticotropin before and following
the daily oral administration of 40 mg. of prednisone for seven or more days has been made …