Melatonin production at night in animals has been shown to be involved in seasonal rhythms of reproduction, migration, and hibernation. This protocol examines the results of melatonin production using a very sensitive analytic technique in six patients with winter depression and four healthy control subjects at each of the four seasons of the year and under different conditions of natural and dim light.

Project Start
Project End
Budget Start
Budget End
Support Year
27
Fiscal Year
1993
Total Cost
Indirect Cost
Name
Oregon Health and Science University
Department
Type
DUNS #
009584210
City
Portland
State
OR
Country
United States
Zip Code
97239
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