Role of rs1501299 variant in the adiponectin gene on total adiponectin levels, insulin resistance and weight loss after a Mediterranean hypocaloric diet
2017
Abstract Background/Aim Several adiponectin gene ( ADIPOQ ) single nucleotide polymorphisms (SNPS) have been related with adiponectin levels and risk for obesity. Our aim was to analyze the effects of rs1501299 ADIPOQ gene polymorphism on total adiponectin levels, insulin resistance and weight loss after a Mediterranean hypocaloric diet in obese subjects. Methods A Caucasian population of 82 obese patients was analyzed, before and after 3 months on a Mediterranean hypocaloric diet. Before and after 3 months on a hypocaloric diet, an anthropometric evaluation, an assessment of nutritional intake and a biochemical analysis were performed. Results After dietary treatment and in wild type group, weight, BMI, fat mass, leptin levels, systolic blood pressure and waist circumference decreases were similar to the mutant type group. In wild type group, the decrease in total cholesterol was −28.1 ± 15.3 mg/dl (mutant group: −12.6 ± 16.7 mg/dl:p = 0.009), LDL- cholesterol was −31.8 ± 20.5 mg/dl (−12.2 ± 11.5 mg/dl:p = 0.006), fasting glucose plasma −4.8 ± 2.5 mg/dL (−0.5 ± 0.1 mg/dL:p = 0.02), insulin −3.6 ± 1.5 mUI/L (+0.6 ± 1.1 mUI/L:p = 0.02) and HOMA-IR −1.2 ± 0.9 (−0.1 ± 1.1:p = 0.03). Conclusion The present study suggests that T allele of ADIPO (rs1501299) could be a predictor of a lack of response of HOMA-IR, insulin, fasting glucose and LDL cholesterol secondary to a Mediterranean hypocaloric diet in obese subjects.
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