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  • Title: Single nucleotide polymorphisms at the ADIPOQ gene locus rs1501299 interact with different type of dietary fatty acids in two hypocaloric diets.
    Author: de Luis DA, Izaola O, Primo D, Aller R.
    Journal: Eur Rev Med Pharmacol Sci; 2019 Apr; 23(7):2960-2970. PubMed ID: 31002147.
    Abstract:
    OBJECTIVE: Some adiponectin gene (ADIPOQ) and single nucleotide polymorphisms (SNPs) have been related to adiponectin levels and metabolic parameters. Few studies of interaction gene-nutrient have been realized in this topic area. The aim of our study was to analyze the effect of the rs1501299 ADIPOQ gene polymorphism, and the dietary intake on total adiponectin levels and the insulin resistance changes after an enriched-monounsaturated fat (Diet M) vs. an enriched-polyunsaturated fat hypocaloric diet (Diet P). PATIENTS AND METHODS: A Caucasian population of 363 obese patients was enrolled in a randomized clinical trial with two hypocaloric diets. Before and after 12 weeks on each hypocaloric diet, an anthropometric evaluation, an assessment of nutritional intake and a biochemical analysis were realized. The statistical analysis was performed for the combined GT and TT as a group (mutant) and GG as second group (wild). RESULTS: With both caloric restriction strategies, body weight, body mass index (BMI), fat mass, waist circumference, systolic blood pressure and leptin levels decreased. After Diet P, only subjects with GG genotype showed a significant improvement in the insulin levels (GG vs. GT±TT) (-3.2±1.0 mU/L vs. -0.6±0.4 mU/L: p=0.01) and in the homeostasis model assessment (HOMA-IR) (-1.1±0.2 units vs. -0.3±0.4 units: p=0.02). The same improvement in both parameters was reported after Diet M: insulin levels (-3.7±0.9 mU/L vs. -0.4±0.5 mU/L: p=0.01) and HOMA-IR (-1.0±0.2 units vs. -0.4±0.3 units: p=0.03). After weight loss with diet M, both genotypes (GG vs. GT±TT) showed similar decrease in total cholesterol and LDL-cholesterol. Only subjects with GG genotype showed a significant increase of the adiponectin levels after both diets: (Diet P: 9.3±3.0 ng/dl vs. Diet M: 8.2±2.9 ng/dl: p=0.38). CONCLUSIONS: The GG genotype of ADIPOQ gene variant (rs1501299) is associated to a significant improvement in the adiponectin levels and a decrease of insulin and HOMA-IR after two different hypocaloric diets with different profile of unsaturated dietary fats.
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