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Journal Article

Citation

Sher L, Carballo JJ, Grunebaum MF, Burke AK, Zalsman G, Huang Y, Mann JJ, Oquendo MA. Bipolar Disord. 2006; 8(5 Pt 2): 543-550.

Copyright

(Copyright © 2006, John Wiley and Sons)

DOI

10.1111/j.1399-5618.2006.00319.x

PMID

17042827

Abstract

OBJECTIVES: Bipolar disorder is a severe illness that is associated with suicidal behavior. A biological predictor of highly lethal suicide attempts in patients with bipolar disorder would be valuable. We hypothesized that cerebrospinal fluid (CSF) monoamine metabolite levels are related to lethality of suicide attempts in bipolar patients and examined the relation between CSF 5-hydroxyindolacetic acid (5-HIAA), homovanillic acid (HVA), and 3-methoxy-4-hydroxyphenylglycol (MHPG) levels and maximum lethality of suicide attempts at baseline and during a 2-year follow up.
METHODS: Twenty-seven bipolar depressed patients participated in the study. Demographic and clinical parameters were examined and recorded. Lumbar punctures were performed and CSF 5-HIAA, HVA, and MHPG were assayed by high-performance liquid chromatography with electrochemical detection. Following discharge, patients were evaluated after 3 months, 1 year, and 2 years. Each follow-up interview included an in-depth assessment of suicidal behavior during the intervening time period.
RESULTS: Six subjects made suicide attempts during the 2-year follow-up. Bipolar patients who attempted suicide during the follow-up period had higher aggression and hostility scale scores compared to bipolar subjects who did not make a suicide attempt during the follow-up period. CSF 5-HIAA, HVA, and MHPG levels were negatively correlated with the maximum lethality of suicide attempts during the 2-year follow-up period.
CONCLUSIONS: Our finding is the first observation that CSF monoamine metabolite levels may be predictors of lethality of suicide attempts in patients with bipolar disorder. Further studies are necessary to answer the question whether CSF monoamine metabolite levels are clinically useful biochemical predictors of highly lethal suicide attempts or completed suicides.


Language: en

Keywords

Adult; Bipolar Disorder; Demography; Female; Follow-Up Studies; Homovanillic Acid; Humans; Hydroxyindoleacetic Acid; Male; Methoxyhydroxyphenylglycol; Prefrontal Cortex; Prevalence; Prospective Studies; Suicide; Suicide, Attempted

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