Abstract：【Objective】To investigate the relationship between the efficacy of risperidone in the treatment of schizophrenia and the polymorphism of dopamine D2 receptor gene (DRD2). 【Methods】A total of 68 schizophrenic patients treated in our hospital from October 2018 to October 2019 was selected as the research objects. They were treated with risperidone for 8 weeks. The efficacy of risperidone was evaluated by positive and negative symptom scale (PANSS). According to PANSS, they were divided into total effective group and ineffective group, negative symptom effective group and ineffective group, positive symptom effective group and ineffective group. The genotypes and allele frequencies of rs6275 and rs6277 in DRD2 receptor gene of 68 patients were detected by single nucleotide polymorphism (SNP). 【Results】The total score, positive symptom score, negative symptom score and general psychopathology of 68 patients after treatment were significantly lower than those before treatment (P<0.05). Risperidone was effective in 52 cases and ineffective in 16 cases; Positive symptoms were effective in 54 cases and ineffective in 14 cases; Negative symptoms were effective in 53 cases and ineffective in 15 cases. There was no significant difference in gender, age and course of disease among different treatment groups (P>0.05).There were significant differences in the total efficacy of different genotypes of rs6275 between the effective group and the ineffective group, as well as the distribution of CC, CT, TT and alleles C and T (P<0.05).There were significant differences in the total efficacy of different genotypes of rs6277 between the effective group and the ineffective group, and the distribution of CC, CT, TT and allele C and T positive symptoms between the effective group and the ineffective group (P<0.05).【Conclusion】DRD2 gene polymorphism is related to the clinical efficacy of risperidone in the treatment of schizophrenia. Individualized drug regimens can be given to schizophrenic patients according to different DRD2 gene polymorphisms.
余相满, 李志华. 利培酮治疗精神分裂症的疗效与多巴胺D2受体基因多态性的关系[J]. 医学临床研究, 2021, 38(9): 1389-1391.
YU Xiang-man, LI Zhi-hua. Relationship between the Efficacy of Risperidone in the Treatment of Schizophrenia and Dopamine D2 Receptor Gene Polymorphism. JOURNAL OF CLINICAL RESEARCH, 2021, 38(9): 1389-1391.
2021, Vol. 38 
