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Abstract
Although studies have repeatedly demonstrated that depressed patients average higher
baseline and postdexamethasone serum cortisol than normal controls, studies examining
similar trends in adrenocorticotrophic hormone (ACTH) have produced conflicting results.
The current study uniquely employs 48 hr of every 20-min serum sampling: the first
24 hr prior to dexamethasone administration and the second 24 hr subsequent. The depressed
patients showed higher baseline cortisol levels than normal controls, with the greatest
differences between 2 am and 6 am. After an 11 pm dose of dexamethasone, the difference was greatest between the hours of 8 am and 4 pm. Among the depressed patients, those who reported recent weight loss had significantly
higher plasma ACTH and cortisol levels than those without weight loss. Depressed patients
without weight loss had higher baseline plasma ACTH than normal controls, and the
differences reached significance during some time periods.
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Article info
Publication history
Received in revised form:
April 20,
1985
Received:
March 19,
1984
Footnotes
☆Supported in part by NIMH Grant MH 34697 and the Clinical Research Center Program RR59.
Identification
Copyright
© 1985 Published by Elsevier Inc.