Abstract
This work aims to examine the interaction between Apolipoprotein A2 (Apo A-II) −265T>C single nucleotide polymorphism (SNP) and dietary total antioxidant capacity (DTAC) on inflammation and oxidative stress in patients with type 2 diabetes mellitus. The present cross-sectional study included 180 patients (35-65 years) with identified Apo A-II genotype. Dietary intakes were assessed by a food frequency questionnaire. DTAC was computed using the international databases. Interleukin-18(IL18), high-sensitivity C-reactive protein (hs-CRP), and pentraxin (PTX3), serum total antioxidant capacity (TAC), superoxide dismutase activity (SOD), and 8-isoprostaneF2α (PGF2α) markers were obtained according to standard protocols. General linear model was used to evaluate the interaction. The interaction of gene and DTAC (PFRAP=0.039 and PORAC=0.042) on PGF2α level was significant after adjusting for confounders. A significant interaction was observed on IL18 level (PORAC=0.018 and PFRAP=0.048) and SOD (PTEAC=0.037) in obese patients. Among patients whose DTAC was higher than the median intake, the levels of hs-CRP and PGF2α were significantly higher only in individuals with CC genotype. Serum TAC (PFRAP=0.030, PORAC=0.049) and SOD were significantly lower in the CC genotype. There was a favorable relationship between the high-DTAC and SOD (Obese: PTEAC=0.034, Non-obese: PFRAP=0.001, PTRAP<0.0001, PTEAC=0.003 and PORAC=0.001) and PGF2α (Non-obese: PORAC=0.024) in T-allele carriers. The rs5082 SNP interacts with DTAC to influence several cardio-metabolic risk factors. Also, we found dietary recommendations for antioxidant-rich foods intake might be useful in the prevention of diabetes complications in the T carrier more effectively than the CC genotype. Future large studies are required to confirm these results.
Increase in Total Antioxidant Capacity of Plasma despite High Levels of Oxidative Stress in Uncomplicated Type 2 Diabetes Mellitus
