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G1359a Variant of the Cannabinoid Receptor Gene (Rs1049353) and Obesity-Related Traits and Related Endophenotypes: A Meta-Analysis Publisher Pubmed



Sadeghian M1, 2 ; Rahmani S3 ; Mansoori A1, 4
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Authors Affiliations
  1. 1. Department of Nutrition, Para-Medical School, Ahvaz Jundishapur University of Medical Sciences, PO Box 61357-15794, Ahvaz, Khuzestan, Iran
  2. 2. Student Research Committee, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
  3. 3. Department of Community Nutrition, M.A. Graduate of Nutrition, School of Nutrition, Isfahan University of Medical Sciences, Isfahan, Iran
  4. 4. Nutrition and Metabolic Diseases Research Center, Ahvaz Junishapur University of Medical Sciences, Ahvaz, Iran

Source: Annals of Nutrition and Metabolism Published:2018


Abstract

Background: This study aimed to investigate the comparison of G1359A variant of cannabinoid receptor gene (rs1049353) with obesity-related traits including body mass index (BMI), fat mass (FM), fat-free mass (FFM), food-related traits, and leptin among healthy and non-healthy adults. Methods: We searched PubMed, Cochrane, Scopus, Web of Science, and EMBASE until December 2016 for observational studies assessing each of the anthropometric measurements, food-related traits, and leptin of 1359 G/A polymorphism of CNR1 gene. A total of 22 studies were included in the meta-analysis comparing mean and SD differences of the anthropometric measurements, leptin, and dietary intake between GA/AA and GG genotypes. Results: The results showed that subjects with GA/AA genotype had significantly lower BMI (weighted mean difference = -0.59 kg/m2, p < 0.001) compared to those with the GG genotype. Dietary intake of fat, carbohydrate, and protein as well as serum levels of leptin was not significantly different between GA/AA and GG genotypes. Conclusion: It was revealed that subjects with mutant polymorphism (GA/AA) of CNR1, compared to the wild-type group (GG), had lower BMI (although there was unexplained heterogeneity). © 2018 S. Karger AG, Basel.
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