Aim: Many studies suggest that the persistent organic pollutants (POPs) is a risk factor of type 2 diabetes. The relationship between dietary factors and POPs has been explored recently. POPs are fat-soluble substances that accumulate through the consumption of high fat diets, fish, meat and dairy products. Vegetables and fruits are known to prevent the accumulation of POPs. We aimed to examine the associations between dietary factors and serum cumulative bioactivity of AhR ligand mixture (AhRB) as a biomarker of POPs in subjects at high risk for type 2 diabetes.
Methods: We performed a cross-sectional analysis of 304 prediabetic subjects using the Korea National Diabetes Program cohort data. AhRB was divided into quartiles according to the concentrations. (Q1 (the lowest quartile): (Q1 (the lowest quartile): 1.7±0.3, Q2: 2.4±0.2, Q3:3.1±0.2, Q4 (the highest quartile): 3.9±0.2). Socio‐demographic, health related-behaviors, and dietary factors were assessed. Dietary factors were collected from the 3-day dietary records and food frequency questionnaire.
Results: Starting with the Q1 of AhRB, adjusted mean concentrations of serum triglycerides were 147.06±12.97, 151.30±12.64, 125.80±13.19 and 166.78±13.76 mg/dL for ascending quartiles, respectively (P< 0.05). In the 3Q of AhRB, the highest consumption of sugars (Q3: 13.6±11.6g, P=0.016) and dairy products (Q3: 117.0±126.6g, P=0.032) were shown compared to those of other three groups. On multiple linear regression analysis, high consumption of dairy products (P< 0.05) and fried fish with oil (P < 0.05) were significantly positive associated with serum AhRB concentration after adjusting covariates.
Conclusion: This study found an association between dietary factors and AhRB level, however, further longitudinal studies are needed to clarify the effects of these dietary factors on POP levels.
S. Chon: None. H. Lim: None. J. Kim: None. S. Oh: None.