MK4MDD

Study Report

Reference
CitationCaldwell, 1991 PubMed
Full InfoCaldwell, C.L., Irwin, M. and Lohr, J. (1991) Reduced natural killer cell cytotoxicity in depression but not in schizophrenia. Biol Psychiatry, 30, 1131-1138.

Study
Hypothesis or Background A reduction of natural killer (NK) cell activity has been found in hospitalized patients with major depressive disorder.
Sample Informationhospitalized depressed patients, schizophrenic inpatients, and two groups of controls separately age matched to each patient group
Method DetailTo examine whether a reduction of NK activity is found in other psychiatric patients or related to the nonspecific effects of hospitalization, NK cell cytotoxicity was compared in hospitalized depressed patients, schizophrenic inpatients, and two groups of controls separately age matched to each patient group.
Method Keywords
ResultNK activity was significantly (p less than 0.01) lower in depressed inpatients than control subjects. However, in the hospitalized schizophrenic patients values of natural cytotoxicity did not differ from controls.
ConclusionsThese findings suggest that reduced NK cytotoxicity in depression is independent of the effects of hospitalization.

Relationships reported by Caldwell, 1991