Association between Serotonin Transporter Polymorphism and the Effect of Atypical Antipsychotics on Serum Glucose and Lipids / 대한정신약물학회지

ABSTRACT

OBJECTIVE: The author investigated the association between the genotype distribution of 5-HTTLPR and the effects of atypical antipsychotics on serum glucose and lipids in schizophrenic patients. METHODS: Study subjects were 66 schizophrenic patients taking atypical antipsychotics (risperidone, olanzapine, clozapine, quetiapine, zotepine). The control group consisted of 82 schizophrenic patients taking typical antipsychotics (haloperidol). All subjects were medicated for at least 12 weeks. The author examined serum fasting blood sugar (FBS), HbA1c, total cholesterol, triglyceride, and the genotype distribution of 5-HTTLPR in all subjects. The presence of the 5-HTTLPR gene was determined by using polymerase chain reaction of genomic DNA with primers flanking the promoter regions of the 5-HTT gene. Between group comparisons of the genotype distribution and the effects of antipsychotics on the serum glucose and lipid levels were performed by using score test for t-test, one way ANOVA, and chi-square test. RESULTS: There was a significant increase in FBS level in all patients taking atypical antipsychotics except for those treated with risperidone. However, there was no statistically significant correlation between 5-HTTLPR genotype distribution and the effect of atypical antipsychotics on FBS, HbA1c, total cholesterol, and triglyceride serum levels in schizophrenic patients. CONCLUSION: These results suggest that 5-HTTLPR polymorphism has no significant association with the effect of atypical antipsychotics on serum glucose and lipids in Korean schizophrenic patients.