Electroencephalographic sleep and natural killer activity in depressed patients and control subjects
Autor: | J C Gillin, Michael R. Irwin, Tom L. Smith |
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Rok vydání: | 1992 |
Předmět: |
Adult
Male medicine.medical_specialty media_common.quotation_subject Sleep REM Physiology Electroencephalography Natural killer cell Sleep Initiation and Maintenance Disorders Internal medicine medicine Insomnia Humans Applied Psychology media_common Psychiatric Status Rating Scales Depressive Disorder Sleep disorder medicine.diagnostic_test medicine.disease Control subjects Killer Cells Natural Psychiatry and Mental health Electrophysiology medicine.anatomical_structure Endocrinology Mood Educational Status medicine.symptom Sleep Psychology Interleukin-1 Vigilance (psychology) |
Zdroj: | Psychosomatic Medicine. 54:10-21 |
ISSN: | 0033-3174 |
Popis: | Insomnia is associated with a reduction of natural killer (NK) activity in depression independent of the severity of other depressive symptoms. This study extends these findings by exploring the relationship between objective electroencephalographic (EEG) assessment of sleep and values of NK activity in depressed patients (n = 23) and in control subjects (n = 17). The sleep EEG parameters total sleep time, sleep efficiency, and duration of nonREM sleep were each positively correlated with NK activity in the depressed patients and in the control subjects, demonstrating similar relationships between the amount of sleep and NK activity in the separate groups. These observations support the hypothesis that sleep measures are associated with NK cytotoxicity, independent of the effects of severity of depressive symptoms or the presence of a mood disorder. |
Databáze: | OpenAIRE |
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