1. Dietary fat and carbohydrate modulate the effect of the ATP-binding cassette A1 (ABCA1) R230C variant on metabolic risk parameters in premenopausal women from the Genetics of Atherosclerotic Disease (GEA) Study
- Author
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Erika Antúnez-Argüelles, Samuel Canizales-Quinteros, Rosalinda Posadas-Sánchez, Teresa Villarreal-Molina, María del Carmen González-Salazar, Sandra Romero-Hidalgo, Carlos Posadas-Romero, Alessandra Carnevale, Aida Medina-Urrutia, Leonor Jacobo-Albavera, and Gilberto Vargas-Alarcón
- Subjects
medicine.medical_specialty ,medicine.drug_class ,Endocrinology, Diabetes and Metabolism ,Medicine (miscellaneous) ,ABCA1 ,Clinical nutrition ,Biology ,Insulin resistance ,Polymorphism (computer science) ,Internal medicine ,Diabetes mellitus ,Gene-diet interaction ,medicine ,HDL-C ,Nutrition and Dietetics ,Adiponectin ,Research ,nutritional and metabolic diseases ,medicine.disease ,GGT ,Endocrinology ,Estrogen ,R230C ,biology.protein ,Alkaline phosphatase ,Visceral to subcutaneous abdominal fat ratio - Abstract
Background Although the R230C-ATP-binding cassette A1 (ABCA1) variant has been consistently associated with HDL-C levels, its association with diabetes and other metabolic parameters is unclear. Estrogen and dietary factors are known to regulate ABCA1 expression in different tissues. Thus, we aimed to explore whether gender, menopausal status and macronutrient proportions of diet modulate the effect of this variant on various metabolic parameters. Methods One thousand five hundred ninety-eight controls from the GEA study were included (787 men, 363 premenopausal women and 448 menopausal women), previously assessed for anthropometric and biochemical measurements and visceral to subcutaneous abdominal fat (VAT/SAT) ratio on computed tomography. Taqman assays were performed for genotyping. Diet macronutrient proportions were assessed using a food frequency questionnaire validated for the Mexican population. Multivariate regression models were constructed to assess the interaction between the proportion of dietary macronutrients and the R230C polymorphism on metabolic parameters. Results All significant interactions were observed in premenopausal women. Those carrying the risk allele and consuming higher carbohydrate/lower fat diets showed an unfavorable metabolic pattern [lower HDL-C and adiponectin levels, higher VAT/SAT ratio, homeostasis model assessment for insulin resistance (HOMA-IR) and higher gamma-glutamyl transpeptidase (GGT) and alkaline phosphatase (ALP) levels]. Conversely, premenopausal women carrying the risk allele and consuming lower carbohydrate/higher fat diets showed a more favorable metabolic pattern (higher HDL-C and adiponectin levels, and lower VAT/SAT ratio, HOMA-IR, GGT and ALP levels). Conclusion This is the first study reporting a gender-specific interaction between ABCA1/R230C variant and dietary carbohydrate and fat percentages affecting VAT/SAT ratio, GGT, ALP, adiponectin levels and HOMA index. Our study confirmed the previously reported gender-specific ABCA1-diet interaction affecting HDL-C levels observed in an independent study. Our results show how gene-environment interactions may help further understand how certain gene variants confer metabolic risk, and may provide information useful to design diet intervention studies. Electronic supplementary material The online version of this article (doi:10.1186/s12986-015-0040-3) contains supplementary material, which is available to authorized users.
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- 2015