title: CSF monoamine metabolites in patients and controls: support for a bimodal distribution in major affective disorders.
abstract: The monoamine metabolites 5-hydroxyindoleacetic acid (5-HIAA) and homovanillic acid (HVA) in cerebrospinal fluid (CSF) were measured in 38 patients with major affective disorder and 48 age- and sex-matched controls by means of liquid chromatography. Statistical analysis using maximum likelihood normal mixture computations provided evidence for a subgroup of patients characterized by low CSF levels of both 5-HIAA and HVA. In controls, CSF 5-HIAA and HVA levels appeared to be normally distributed when fitted separately, whereas a subgroup of controls characterized by higher values of 5-HIAA and HVA could be discerned when metabolite data were fitted simultaneously. No relationship was found between monoamine levels and suicidal behaviour in patients. A statistically significant relationship was found between CSF 5-HIAA and HVA levels in patients and controls. These data provide supportive evidence for the existence of a subgroup of patients with an abnormal serotonin metabolism as reflected by 5-HIAA, and probably HVA, in CSF.
authors: Department of Biological Psychiatry, State University Hospital, Utrecht, The Netherlands.
authors: H G
authors: HG
authors: Westenberg
authors: W M
authors: WM
authors: Verhoeven
mesh_terms: D000328:Adult; D000368:Aged; D015306:Biogenic Monoamines / Q000134:cerebrospinal fluid*; D001923:Brain Chemistry; D005260:Female; D006719:Homovanillic Acid / Q000134:cerebrospinal fluid; D006801:Humans; D006897:Hydroxyindoleacetic Acid / Q000134:cerebrospinal fluid; D008297:Male; D008875:Middle Aged; D019964:Mood Disorders / Q000134:cerebrospinal fluid*
chemical_list: D015306:Biogenic Monoamines; D006897:Hydroxyindoleacetic Acid; D006719:Homovanillic Acid