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Effect of rs6923761 gene variant of glucagon-like peptide 1 receptor on metabolic response and weight loss after a 3-month intervention with a hypocaloric diet

Authors
  • de Luis, Daniel Antonio1
  • Aller, Rocío1
  • Izaola, Olatz1
  • Lopez, J. J.1
  • Gomez, E.1
  • Torres, B.1
  • Soto, G. Diaz1
  • 1 University of Valladolid, Center of Investigation of Endocrinology and Nutrition, Medicine School and Unit of Investigation, Hospital Rio Hortega, C/Los perales 16, Simancas, Valladolid, 47130, Spain , Simancas (Spain)
Type
Published Article
Journal
Journal of Endocrinological Investigation
Publisher
Springer-Verlag
Publication Date
Jun 28, 2014
Volume
37
Issue
10
Pages
935–939
Identifiers
DOI: 10.1007/s40618-014-0117-2
Source
Springer Nature
Keywords
License
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Abstract

BackgroundStudies of the GLP-1 receptor (GLP-1 R) have been directed at identifying polymorphisms in the GLP-1 R gene that may be a contributing factor in the pathogenesis of obesity and cardiovascular risk factors. Nevertheless, the role of GLP-1 R variants on body weight response after dietary intervention has not been evaluated.ObjectiveWe decided to analyze the effects of the rs6923761 GLP-1 R polymorphism on body weight changes and metabolic parameters after 3 months of a hypocaloric diet.DesignA sample of 91 obese subjects was analyzed in a prospective way. The hypocaloric diet had 1,520 calories per day; 52 % of carbohydrates, 25 % of lipids and 23 % of proteins. Distribution of fats was: 50.7 % of monounsaturated fats, 38.5 % of saturated fats and 11.8 % of polyunsaturated fats.ResultsIn both genotype groups (GG vs. GA + AA), weight, body mass index, fat mass, waist circumference, systolic blood pressure, total cholesterol, LDL cholesterol, leptin, insulin and HOMA levels decreased. No statistical differences were detected in these changes between genotypes. In wild group (GG genotype) (pretreatment and posttreatment), BMI, weight, fat mass, waist circumference and triglyceride levels were higher than (GA + AA) group.ConclusionOur data showed better anthropometric parameters and triglyceride levels in obese subjects with the mutant allele (A) of rs6923761 GLP-1R polymorphism. A lack of association of this polymorphism with weight loss or biochemical changes after a hypocaloric diet was observed.

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