Related Experiment Videos
Unusual lymphocyte subset distribution in some depressed patients
S N Wilson1, O S Surman, R Colvin
1Department of Psychiatry, Massachusetts General Hospital, Boston.
The Journal of Clinical Psychiatry
|February 1, 1990
Summary
Major depression is linked to immune system changes, specifically a lower T4-T8 helper-suppressor cell ratio due to increased suppressor cells. Viral infections may contribute to this immune imbalance in depressed patients.
Area of Science:
- Immunology
- Psychiatry
- Cell Biology
Background:
- Depression is increasingly recognized as having a biological component.
- Previous research suggests a link between depression and immune system dysregulation.
Purpose of the Study:
- To investigate specific alterations in lymphocyte subsets in patients diagnosed with major depression.
- To explore the helper-T cell to suppressor-T cell (T4-T8) ratio in the context of major depressive disorder.
Main Methods:
- Analysis of lymphocyte subsets in a cohort of 10 patients with major depression.
- Comparison of T4-T8 ratios between the patient group and a control group.
- Identification of specific cell populations contributing to observed ratio differences.
Main Results:
- Patients with major depression exhibited a significantly lower mean T4-T8 ratio compared to control subjects.
- The reduction in the T4-T8 ratio was primarily driven by an increase in suppressor (T8) cells within the depressed group.
Conclusions:
- Major depression is associated with a quantifiable imbalance in T-lymphocyte subsets, characterized by elevated suppressor cell numbers.
- Viral infections are hypothesized as a potential contributing factor to the observed immunologic dysfunction in depression.