期刊
PSYCHIATRY INVESTIGATION
卷 6, 期 1, 页码 39-43出版社
KOREAN NEUROPSYCHIATRIC ASSOC
DOI: 10.4306/pi.2009.6.1.39
关键词
Olanzapine; Weight; Polymorphism; Schizophrenia
类别
Objective Weight gain is a possible adverse effect of the use of antipsychotics, and is an important factor for long-term health and treatment compliance. Olanzapine is an atypical antipsychotic known to cause considerable weight gain. A relationship between weight gain and the G protein beta 3 subunit gene (GNB3) 825C/T polymorphism has been reported. We therefore examined this possible association in a Korean schizophrenic patient group receiving olanzapine treatment. Methods Weight and height measurements were obtained prior to starting olanzapine and measured again after long-term treatment. Genotyping for the 825C/T polymorphism was performed using a PCR-based method. Results We found that long-term treatment with olanzapine resulted in mean gains in weight and body mass index (BMI) of 5.2 kg and 1.93 kg/m(2), respectively. There was a no significant difference in the mean body weight it change from baseline to the endpoint after olanzapine treatment between the genotype groups (p=0.796). There were also no significant differences in genotype or allele frequencies between the severe weight-gain (more than 10%) and minimal weight-gain (less than 10%) groups (chi(2)=0.037, p=0.98; chi(2)=0.020, p=0.89). Conclusion The Finding from this study thus does not support a relationship between the GNB3 825C/T polymorphism and weight gain in Korean schizophrenic patients receiving olanzapine treatment.
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