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Apolipoprotein A2 −265 T>C Polymorphism Interacts With Dietary Fatty Acids Intake to Modulate Inflammation in Type 2 Diabetes Mellitus Patients Publisher Pubmed



Keramat L1 ; Sadrzadehyeganeh H2 ; Sotoudeh G2 ; Zamani E1 ; Eshraghian M3 ; Mansoori A4 ; Koohdani F1
Authors
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Authors Affiliations
  1. 1. Department of Cellular and Molecular Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences, Tehran, Iran
  2. 2. Department of Community Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences, Tehran, Iran
  3. 3. Department of Biostatistics and Epidemiology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
  4. 4. Nutrition and Metabolic Diseases Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran

Source: Nutrition Published:2017


Abstract

Objective Several investigations have been conducted regarding the interaction between Apolipoprotein A2 (APOA2) −265 T>C polymorphism and dietary intake of saturated fatty acids (SFAs) on obesity in healthy individuals or type 2 diabetes mellitus (T2 DM) patients. The aim of the present study is to examine the effect of this interaction on inflammatory markers in T2 DM patients. Methods This is a comparative cross-sectional study on 180 T2 DM patients with known APOA2 genotype. Dietary intake was assessed by food-frequency questionnaire and serum levels of inflammatory markers (interleukin [IL]-18, pentraxin 3, and high-sensitivity C-reactive protein [hs-CRP]) were measured. The subjects were dichotomized into “high” and “low” categories, based on the median dietary intake of polyunsaturated fatty acids (PUFAs), monounsaturated fatty acids (MUFAs), and SFAs. The data were analyzed by analysis of covariance multivariate interaction model. Results In CC genotype, higher median intake of ω-3 PUFAs and MUFAs was associated with decreased serum levels of IL-18 and hs-CRP (P = 0.014 and 0.008, respectively). In T-allele carriers, higher median intake of SFAs was associated with increased serum hs-CRP level (P < 0.001). There was a significant relationship between APOA2 polymorphism and ω-3 PUFA intake on serum IL-18 level (P interaction = 0.03). Moreover, the relationship between this polymorphism and SFA and MUFA intake on serum hs-CRP level was statistically significant (P interaction = 0.03 and 0.024, respectively). Conclusions In T2 DM patients, the dietary intake of antiinflammatory fatty acids, such as ω-3 PUFAs and MUFAs, could reduce the inflammatory effects associated with the CC genotype. In addition, proinflammatory fatty acids, such as SFAs, could overcome the antiinflammatory effect of the T-allele. Further studies are needed to confirm these findings. © 2016 Elsevier Inc.
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