title: Relationship between platelet MAO activity and concentrations of 5-HIAA and HVA in cerebrospinal fluid in chronic pain patients.
abstract: Platelet monoamine oxidase (MAO) activity and concentrations of 5-HIAA and HVA in the cerebrospinal fluid (CSF) were estimated in a series of 54 chronic pain patients. Platelet MAO activity was found to correlate, positively to CSF concentrations of 5-HIAA and HVA, which had been adjusted in order to eliminate the influence of age and body height. However, only the correlation with 5-HIAA reached a significant level. When partial correlations were sought, only the positive correlation between platelet MAO activity and CSF 5-HIAA remained. The results support the notion that platelet MAO ia a biological marker for some trait dependent property of the central serotonergic system.
mesh_terms: D000367:Age Factors; D001792:Blood Platelets / Q000201:enzymology*; D001827:Body Height; D002908:Chronic Disease; D005260:Female; D006719:Homovanillic Acid / Q000134:cerebrospinal fluid*; D006801:Humans; D006897:Hydroxyindoleacetic Acid / Q000134:cerebrospinal fluid*; D008297:Male; D008875:Middle Aged; D008995:Monoamine Oxidase / Q000378:metabolism*; D010146:Pain / Q000134:cerebrospinal fluid / Q000201:enzymology* / Q000503:physiopathology; D013577:Syndrome
chemical_list: D006897:Hydroxyindoleacetic Acid; D008995:Monoamine Oxidase; D006719:Homovanillic Acid