期刊
SCHIZOPHRENIA RESEARCH
卷 93, 期 1-3, 页码 99-108出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.schres.2007.03.029
关键词
antidiabetic agents; atypical antipsychotics; obesity; diabetes; dyslipidemia; endothelial dysfunction; obesity
类别
Background: Excessive body weight gain (BWG) is a clinically relevant side effect of olanzapine administration. The primary objective of this study was to assess whether metformin prevents or reverses BWG in patients with schizophrenia or bipolar disorder under olanzapine administration. Secondarily we evaluated diverse metabolic variables. Methods: Eighty patients taking olanzapine (5-20 mg daily for more than 4 consecutive months) were randomly allocated to metformin (n = 40; 850 to 2550 mg daily) or placebo (n = 40) group in a 12-week double-blind protocol. Waist circumference (WC) body weight (BW), body mass index (BMI) fasting glucose, glycated hemoglobin (Hblc), insulin, an insulin resistance index (HOMA-IR) lipids, leptin, c-reactive protein, fibrinogen, cortisol and the growth hormone (GH) were evaluated at baseline and at week 12 of treatment. Results: The metformin group lost 1.4 +/- 3.2 kg (p = 0.01) and tended to decrease its leptin levels, whereas the placebo group maintained a stable weight: -0.18 +/- 2.8 kg (p = 0.7). The HOMA-IR significantly increased after placebo (p = 0.006) and did not change after metformin (p = 0.8). No ostensible differences were observed in the other variables, even though metformin did not improve the lipid profile and the Hblc levels. Conclusions: Metformin may safely assist olanzapine-treated patients in body weight and carbohydrate metabolism control. (c) 2007 Elsevier B.V. All rights reserved.
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