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  • Title: Negative association between catechol-O-methyltransferase (COMT) gene Val158Met polymorphism and persistent tardive dyskinesia in schizophrenia.
    Author: Lai IC, Wang YC, Lin CC, Bai YM, Liao DL, Yu SC, Lin CY, Chen JY, Liou YJ.
    Journal: J Neural Transm (Vienna); 2005 Aug; 112(8):1107-13. PubMed ID: 15583953.
    Abstract:
    Chronic administration of typical antipsychotic agents, which mainly act on the dopamine receptors, implicates a role of dopamine system on the susceptibility of tardive dyskinesia (TD). In the present study, the association between a functional Val158Met polymorphism of Catechol-O-methyltransferase (COMT) gene and TD occurrence and TD severity was investigated in 299 Chinese schizophrenic patients with long-term antipsychotic treatment (TD: 166, non-TD: 133). After adjusting the effects of confounding factors, there was no significant association between COMT genotype and TD occurrence (p=0.367). Among TD patients, we found no significant correlation between COMT genotypes and the total scores of abnormal involuntary movement scale (AIMS) (p=0.629). We concluded that this COMT polymorphism might not play a major role in the susceptibility of TD nor on the severity of TD.
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