Journal
PHARMACOGENOMICS JOURNAL
Volume 7, Issue 5, Pages 318-324Publisher
NATURE PUBLISHING GROUP
DOI: 10.1038/sj.tpj.6500422
Keywords
HTR2C; 5-HT2c; antipsychotics; obesity; BMI
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The use of antipsychotics is associated with an increased risk of obesity. This consideration makes it important to search for determinants that can predict the risk for antipsychotic-induced obesity. In this cross-sectional study, we investigated whether polymorphisms in the HTR2C gene were associated with obesity (body mass index 430 kg/m(2)) in patients using antipsychotics. We examined polymorphisms in the promoter region of the HTR2C gene ((HTR2C: c. 1-142948(GT)(n), rs3813928 (-997 G/A), rs3813929 (-759 C/T), rs518147 (-697 G/C)) and an intragenic polymorphism (rs1414334: C>G). The results of the logistic regression were expressed as adjusted odds ratios (OR). In total, we included 127 patients mainly diagnosed with schizophrenia or schizoaffective disorder (89%). The results indicate that a combined genotype carrying the variant HTR2C: c. 1-142948(GT) n 13 repeat allele, the common allele rs3813929 C, the variant allele rs518147 C and the variant allele rs1414334 C is significantly related to an increased risk of obesity (OR 3.71 (95% confidence interval: 1.24-11.12)).
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