Journal
PROGRESS IN NEURO-PSYCHOPHARMACOLOGY & BIOLOGICAL PSYCHIATRY
Volume 32, Issue 8, Pages 1848-1853Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.pnpbp.2008.08.014
Keywords
Antipsychotic-induced weight gain; BMI; GNB-3; Meta-analysis; Obesity
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It has been reported that C825T variant in the gene encoding the G-protein subunit beta 3 (GNB3) is associated with antipsychotic-induced weight gain and obesity. We investigated the association of the GNB3 and anti psychotic-induced weight gain as well as body mass index (BMI) using meta-analytical techniques. Our analysis of 402 schizophrenia subjects showed a trend (p=0.072) only under a fixed-model. As it was observed heterogeneity among the studies (p=0.007), we re-analyzed using a random-effects framework and no significance was found (p=0.339). No evidence for bias publication was reported (p=0.868). Our analysis of 18,903 subjects showed a trend (p=0.053) associating CC and lower BMI under a fixed model. Although no significant association was found, the same pattern (CC and lower antipsychotic-induced weight gain) was observed. Our meta-analysis indicates that firmly establishing the role of pharmacogenetics in clinical psychiatry requires much larger sample sizes that have been reported. (c) 2008 Elsevier Inc. All rights reserved.
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