title: Changes in mental condition, hyperkinesias and biochemical parameters after withdrawal of chronic neuroleptic treatment.
abstract: Neuroleptics were withdrawn abruptly from 14 hospitalized chronic schizophrenics. For 12 weeks the patients were observed from the aspect of psychic change and the development of withdrawal dyskinesia. Serum prolactin level, plasma dopamine-beta-hydroxylase activity, cerebrospinal fluid homovanillic acid and norepinephrine levels were measured on the day prior to withdrawal and on day 14 of the study. Psychic deterioration showed no association with any of the tested biochemical parameters. The decrease in the CSF HVA and NE levels of the patients displaying symptoms of withdrawal dyskinesia was significantly smaller than in those displaying no dyskinesia.
authors.forename: A
authors.initials: A
authors.lastname: Perényi
authors.forename: E
authors.initials: E
authors.lastname: Frecska
authors.forename: G
authors.initials: G
authors.lastname: Bagdy
authors.forename: K
authors.initials: K
authors.lastname: Révai
mesh_terms: D000328:Adult; D014150:Antipsychotic Agents / Q000008:administration & dosage / Q000009:adverse effects*; D004299:Dopamine beta-Hydroxylase / Q000097:blood; D004409:Dyskinesia, Drug-Induced / Q000209:etiology* / Q000378:metabolism; D005260:Female; D006719:Homovanillic Acid / Q000134:cerebrospinal fluid; D006801:Humans; D008297:Male; D001523:Mental Disorders / Q000139:chemically induced* / Q000175:diagnosis / Q000378:metabolism; D009638:Norepinephrine / Q000134:cerebrospinal fluid; D011388:Prolactin / Q000097:blood; D011569:Psychiatric Status Rating Scales; D012559:Schizophrenia / Q000188:drug therapy; D013375:Substance Withdrawal Syndrome / Q000209:etiology* / Q000378:metabolism / Q000523:psychology
chemical_list: D014150:Antipsychotic Agents; D011388:Prolactin; D004299:Dopamine beta-Hydroxylase; D009638:Norepinephrine; D006719:Homovanillic Acid