• 1. Department of Medication, Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing 210008, China;
  • 2. Department of Pharmacology, China Pharmaceutical University, Nanjing 210009, China;
FANGYun, Email: njglfy@163.com
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Objective To systematically evaluate the relationship between the-2548G/A polymorphism in the leptin gene and antipsychotic-induced weight gain (AIWG). Methods Literature for the relationship between the-2548G/A polymorphism in the leptin gene and AIWG was retrieved in electronic databases including PubMed, EMbase, CNKI and WanFang Data from establishment dates to June, 2013. Two reviewers independently screened studies according to the inclusion and exclusion criteria, extracted data and evaluated the methodological quality of the included studies. Then meta-analysis was performed using RevMan 5.2 software. Results A total of 7 case-control studies were included, involving 404 AIWG cases and 508 controls (patients with no significant changes of weight after taking antipsychotic drugs). The results of meta-analysis showed that, regarding the total population, the-2548G/A polymorphism of the leptin gene was not associated with AIWG (OR=1.16, 95%CI 0.70 to 1.93, P=0.57). After stratification analysis, according to Chinese or non-Chinese origin, the results showed that significant association was found between the-2548G/A polymorphism of leptin gene and AIWG for Chinese (OR=2.15, 95%CI 1.41 to 3.26, P=0.000 4) but not for non-Chinese (OR=0.69, 95%CI 0.45 to 1.07, P=0.10). Conclusion The current evidence suggests that the-2548G/A polymorphism in the leptin gene is associated with increased risk of AIWG for Chinese. Due to limited quantity of the included studies, the aforementioned conclusion needs to be further validate by more high-quality and large-scale studies.

Citation: LUOXue-mei, FANGYun, YANSi-min. Correlation between the-2548G/A Polymorphism of Leptin Gene and Antipsychotic-induced Weight Gain: A Meta-Analysis. Chinese Journal of Evidence-Based Medicine, 2014, 14(2): 231-235. doi: 10.7507/1672-2531.20140040 Copy

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