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The Association of Mc4r Rs17782313 Polymorphism With Dietary Intake in Iranian Adults Publisher Pubmed



Khalilitehrani A1 ; Qorbani M2 ; Hosseini S3 ; Pishva H1
Authors

Source: Gene Published:2015


Abstract

Malfunction in the energy homeostasis system is a major cause of developing obesity. Melanocortin-4 receptor (MC4R) plays a crucial role in this system as a key receptor. Although MC4R gene as an obesity candidate gene is associated with higher BMI, only few attempts have been carried out to understand the mechanism underlying body-weight regulation. Objective: The aim of this study is to investigate the association between variant rs17782313 near MC4R gene and both dietary energy and macronutrient intakes. Methods: An Iranian population, 400 adults aged over 22. years were selected from the Iranian Multicenter Osteoporosis Study (IMOS). Genotyping for the near MC4R rs17782313 was performed by PCR-RFLP. Weight and height were measured. Dietary intake and physical activity were assessed by using validated questionnaires. Analysis was carried out in two groups with regard to BMI. Multiple linear regression models adjusted for covariates were used to examine the association between rs17782313 and dietary intake. Results: MC4R rs17782313 was associated with high energy intake (P. <. 0.001), and low carbohydrate and protein intakes (P. <. 0.001 and P. <. 0.01 respectively). In addition, the significant association between variant rs17782313 and fat intake disappeared after adjusting for energy. Conclusions: The rs17782313 variant contributes to the variety of dietary energy and energy-dense macronutrient intakes. Moreover, a novel association was suggested between this polymorphism and dietary fat intake. © 2015 .
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