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Elevated CSF protein in male patients with depression
A F Pitts1, B T Carroll, T L Gehris
1Department of Psychiatry, University of Iowa College of Medicine, Iowa City.
Biological Psychiatry
|October 1, 1990
Summary
Elevated cerebrospinal fluid (CSF) protein levels were observed in 38% of depression patients, significantly higher than in healthy controls. These elevations were more common in male patients and not linked to medication or cortisol levels.
Area of Science:
- Neuroscience
- Clinical Chemistry
Background:
- Elevated total protein in cerebrospinal fluid (CSF) is a common finding with diverse causes.
- CSF protein elevation is occasionally observed in psychiatric conditions, including depression, though the reasons are unclear.
Purpose of the Study:
- To investigate CSF protein levels in patients with depression compared to healthy controls.
- To explore potential correlations between CSF protein levels and demographic factors, medication, or cortisol levels in depressed individuals.
Main Methods:
- CSF protein levels were measured in 24 patients with depression and 17 healthy controls.
- Protein electrophoresis was performed on a subset of subjects.
- Statistical analyses, including t-tests, were used to compare groups and assess correlations.
Main Results:
- 38% of depression patients exhibited elevated CSF protein levels (>45 mg/dl), compared to 0% in controls.
- Depressed patients showed significantly higher mean CSF protein levels (44.7 mg/dl) than controls (31.5 mg/dl).
- Elevated CSF protein was more prevalent in male patients than female patients; female controls had lower levels than male controls.
Conclusions:
- Depression is associated with significantly elevated CSF protein levels, particularly in males.
- The observed CSF protein elevations in depression do not appear to be related to common psychiatric medications or HPA axis activity.
- Further research is needed to elucidate the underlying mechanisms of CSF protein elevation in depression.