BACKGROUND: The role of glucagon-like peptide-1 receptor (GLP-1R) variants on body weight response after dietary intervention has not been evaluated so far. OBJECTIVE: Our aim was to evaluate weight loss and adipocytokine levels after two hypocaloric diets with different macronutrient distribution in obese subjects with rs6923761. DESIGN: A sample of 280 obese subjects was randomized to two hypocaloric diets. RESULTS: 124 patients (44.3%) had the genotype GG (wild-type) and 156 (55.7%) had another genotype (mutant), i.e. GA (n = 132, 47.1%) or AA (n = 24, 8.6%). With the type I diet (low in carbohydrates) in the wild-type and mutant groups, BMI, weight, fat mass, waist circumference, insulin levels, insulin resistance and triglycerides decreased. Anthropometric parameters were higher in non-A-allele carriers than A-allele carriers. With the type II diet (low in fats) in all genotypes, BMI, weight, fat mass, waist circumference, insulin levels, total cholesterol and LDL cholesterol decreased. CONCLUSION: Our data showed better anthropometric parameters in obese subjects with the mutant allele (A) of the rs6923761 GLP-1R polymorphism. A lack of association of this polymorphism with weight loss or biochemical parameters after two different hypocaloric diets was observed.
RCT Entities:
BACKGROUND: The role of glucagon-like peptide-1 receptor (GLP-1R) variants on body weight response after dietary intervention has not been evaluated so far. OBJECTIVE: Our aim was to evaluate weight loss and adipocytokine levels after two hypocaloric diets with different macronutrient distribution in obese subjects with rs6923761. DESIGN: A sample of 280 obese subjects was randomized to two hypocaloric diets. RESULTS: 124 patients (44.3%) had the genotype GG (wild-type) and 156 (55.7%) had another genotype (mutant), i.e. GA (n = 132, 47.1%) or AA (n = 24, 8.6%). With the type I diet (low in carbohydrates) in the wild-type and mutant groups, BMI, weight, fat mass, waist circumference, insulin levels, insulin resistance and triglycerides decreased. Anthropometric parameters were higher in non-A-allele carriers than A-allele carriers. With the type II diet (low in fats) in all genotypes, BMI, weight, fat mass, waist circumference, insulin levels, total cholesterol and LDL cholesterol decreased. CONCLUSION: Our data showed better anthropometric parameters in obese subjects with the mutant allele (A) of the rs6923761GLP-1R polymorphism. A lack of association of this polymorphism with weight loss or biochemical parameters after two different hypocaloric diets was observed.