CSF monoamine metabolites in mania
Abstract
As part of the National Institute of Mental Health Clinical Research Branch Collaborative Program on the Psychobiology of Depression, the authors compared concentrations of CSF monoamine metabolites (the norepinephrine metabolite 3-methoxy-4-hydroxyphenylglycol [MHPG], the dopamine metabolite homovanillic acid [HVA], and the serotonin metabolite 5-hydroxyindoleacetic acid [5-HIAA]) from 14 hospitalized manic patients with concentrations from 62 healthy comparison subjects. The manic patients had significantly higher levels of MHPG. Levels of 5- HIAA and HVA did not differ between the manic patients and the comparison male subjects, but they were elevated in the female manic patients. MHPG was the only metabolite that correlated significantly with mania symptom ratings. These data are consistent with findings that have shown abnormal, perhaps excessive, central noradrenergic activity in patients with mania, but not with those suggesting deficits in serotoninergic function.
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