Related Experiment Video
Updated: Jun 21, 2026
04:33
Association Between Sleep Quality and Cognitive Symptoms in Patients with Major Depressive Disorder
Published on: April 26, 2024
Lower CSF MHPG predicts short-term risk for suicide attempt
Hanga Galfalvy1, Dianne Currier, Maria A Oquendo
1Division of Molecular Imaging and Neuropathology, Department of Psychiatry, Columbia University, and New York State Psychiatric Institute, New York, NY 10032, USA. hcg2002@columbia.edu
The International Journal of Neuropsychopharmacology
|July 4, 2009
Summary
Lower levels of 3-methoxy-4-hydroxphenylglycol (MHPG) in cerebrospinal fluid (CSF) predict future suicide attempts in individuals with major depression or bipolar disorder. This finding highlights MHPG as a potential biomarker for suicide risk.
Area of Science:
- Neuroscience
- Psychiatry
- Biomarkers
Background:
- Post-mortem studies indicate central noradrenergic system alterations in suicide.
- Previous studies found no consistent link between non-fatal suicide attempts and cerebrospinal fluid (CSF) 3-methoxy-4-hydroxphenylglycol (MHPG).
Purpose of the Study:
- To prospectively investigate the association between CSF MHPG levels and suicidal acts in patients with major depression and bipolar depression.
- To identify potential clinical mediators of this relationship.
Main Methods:
- Prospective study of 184 drug-free patients with major depressive disorder or bipolar disorder.
- CSF MHPG levels were measured at baseline.
- Patients were followed for up to 12 months for suicidal behavior using survival analysis (Cox proportional hazards modeling).
Main Results:
- Lower CSF MHPG levels predicted future suicide attempts or completed suicide (22% increased hazard per 10 pmol/ml decrease, p=0.045).
- Lower CSF MHPG was associated with higher medical lethality of suicidal acts (p=0.009).
- Smoking and depression severity correlated with lower MHPG but were not significant mediators.
Conclusions:
- Reduced CSF MHPG is linked to an increased short-term risk of suicidal behavior within 12 months of a depressive episode.
- Further research is needed to identify psychopathological mediators linking lower CSF MHPG to suicidal behavior.
