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  • Title: Effect of chlorpromazine treatment on monoamine metabolite levels in cerebrospinal fluid of psychotic patients.
    Author: Wode-Helgodt B, Fyrö B, Gullberg B, Sedvall G.
    Journal: Acta Psychiatr Scand; 1977 Aug; 56(2):129-42. PubMed ID: 899844.
    Abstract:
    Levels of HVA, MOPEG and 5-HIAA in cerebrospinal fluid (CSF) from psychotic men and women with a schizophrenic symptomatology were measured by mass fragmentography. Measurements were made before, 2 and 4 weeks after treatment with chlorpromazine (CPZ) which was given randomly in doses of 200, 400 or 600 mg per day. Before treatment there were positive correlations between the levels of HVA and 5-HIAA in both sexes. During CPZ treatment HVA was significantly elevated, whereas MOPEG and 5-HIAA were reduced. There was a tendency towards tolerance to CPZ's effect on HVA during treatment but a significant effect persisted after 4 weeks. No indication of tolerance to the effects on MOPEG or 5-hiaa was found. There were the same tendencies for the elevations of the HVA/MOPEG and HVA/5-HIAA ratios. The changes in HVA, MOPEG, 5-HIAA, HVA/MOPEG and HVA/5-HIAA were related to dose of CPZ in men but not in women. The bidirectional change of the different metabolites in CSF during CPZ treatment excluses a general and non-specific mechanism for the metabolite changes. The HVA elevation is in accordance with previous results in animals and man, and is presumably related to blockade of central dopamine receptors. Possible mechanisms for the effects on MOPEG and 5-HIAA are discussed.
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