Association of the manganese superoxide dismutase gene Ala–9Val polymorphism with clinical phenotypes and tardive dyskinesia in schizophrenic patients

Autor: Da Chun Chen, Mei Hong Xiu, Pin Hong Chen, You Lan Zheng, Yu Wang, Hong Liu, Xiang Yang Zhang, Hua Qing Meng, Cui Wang, Thomas R. Kosten, Chong Xi Zhang, Ben Shu Zhang
Rok vydání: 2010
Předmět:
Zdroj: Progress in Neuro-Psychopharmacology and Biological Psychiatry. 34:692-696
ISSN: 0278-5846
DOI: 10.1016/j.pnpbp.2010.03.026
Popis: Objective Several recent studies that have investigated the genetic association between the manganese superoxide dismutase ( MnSOD ) gene Ala–9Val single-nucleotide polymorphism (SNP) and tardive dyskinesia (TD) have produced conflicting results. This study was to investigate whether this SNP was associated with clinical phenotypes and antipsychotic-induced tardive dyskinesia (TD) in schizophrenia in a genetically homogeneous Han Chinese inpatient population. Methods Genotyping was performed for the MnSOD gene Ala–9Val SNP in Chinese schizophrenia patients with ( n = 176) and without TD ( n = 346). The severity of TD was assessed using the abnormal involuntary movement scale (AIMS), and psychopathology using the Positive and Negative Syndrome Scale (PANSS). Results The frequencies of genotypes and alleles did not differ significantly between schizophrenic patients with and without TD (both p > 0.05). Also, there was no significant difference in the AIMS total score between the Val/Val and Ala allele carrier groups ( p > 0.05). However, the PANSS negative symptom subscore was significantly higher in patients with Val/Val genotype (21.8 ± 7.3) than those with Ala alleles (20.1 ± 7.7) ( t = 2.32, p = 0.03). Conclusion While the MnSOD gene Ala–9Val polymorphism did not play a major role in the susceptibility to TD in schizophrenic patients, it might be associated with negative symptoms of schizophrenia.
Databáze: OpenAIRE