Supplementary Material for: Fat Mass- and Obesity-Associated (FTO) Gene and Antipsychotic-Induced Weight Gain: An Association Study

  • Emily C. Shing (Creator)
  • Arun K. Tiwari (Creator)
  • E. J. Brandl (Creator)
  • Clement C. Zai (Creator)
  • Jeffrey A. Lieberman (Creator)
  • Herbert Y Meltzer (Creator)
  • James L. Kennedy (Creator)
  • Daniel J. Müller (Creator)
  • A.K. Tiwari (Creator)
  • C.C. Zai (Creator)
  • H. Y. Meltzer (Creator)

Dataset

Description

Objectives: Genetic variation in the fat mass- and obesity-associated gene (FTO) has been associated with obesity in the general population. In this study we have investigated these variants for association with antipsychotic-induced weight gain (AIWG). Methods: A total of 218 patients with chronic schizophrenia or schizoaffective disorder treated mostly with clozapine or olanzapine for up to 14 weeks were included in the study. We analyzed 4 polymorphisms in intron 1 of the FTO gene (rs1421085, rs8050136, rs9939609, rs9930506) for association with AIWG using ANCOVA. Results: No statistically significant associations were observed between the single nucleotide polymorphisms and AIWG. However, patients homozygous for the A-allele of rs9939609 gained numerically higher weight than the other genotypic groups (AA: 5.26 ± 6.7%; TA: 4.66 ± 5.6%; TT: 4.21 ± 5.3%). Conclusion: Our current observations suggest that the FTO gene variants investigated may not play a major role in AIWG.
Date made available2014
PublisherKarger Publishers

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