Am J Psychiatry 1986; 143:442-446
Copyright © 1986 by American Psychiatric Association
Cortisol and Alzheimer's disease, II: Dexamethasone suppression, dementia severity, and affective symptoms
BS Greenwald, AA Mathe, RC Mohs, MI Levy, CA Johns and KL Davis
The course of Alzheimer's disease can be complicated by depressive illness,
often presenting enigmatically. To determine whether the dexamethasone
suppression test (DST) can help distinguish patients with coexisting
dementia and depression from those with dementia alone, DSTs were conducted
with 22 nondepressed Alzheimer's disease patients. Eleven patients were
nonsuppressors. The nonsuppressors were older than the suppressors but did
not differ in depression or dementia ratings. The 8:00 a.m.
postdexamethasone cortisol level correlated with depressive symptoms. A
relationship between severity of dementia and depressive symptoms was also
demonstrated.