| Obesity prevalence have tripled in the past decades. It is logical to consider new approaches to halt
its prevalence. In this concept, considering the effect of interaction between fatty acid desaturase
2 (
FADS2) gene variants and dietary advanced glycation end products (AGEs) on obesity-related
characteristics seems to be challenging. The present cross-sectional study conducted among 347
obese individuals. A validated semi-quantitative 147-item food frequency questionnaire (FFQ) was
used to estimate dietary intakes and American multiethnic database was used to calculate AGEs
content of food items which were not available in Iranian Food Composition Table (FCT). FADS2
gene variants were determined according to Polymerase chain reaction-restriction fragment length
polymorphism (PCR-RFLP). Analysis of covariance (ANCOVA) was used to evaluate the modifier
effect of FADS2
gene-dietary AGEs on biochemical values. Based on our findings, no significant
differences was reported in term of biochemical variables between AGEs tertiles. In contrast,
percent of macronutrients (carbohydrate, protein and fat) of total calorie intake, amount of daily
intake of fiber and meat groups showed a significant differences among AGEs tertiles. Furthermore,
statistical assays clarified the modifier effects of FADS2
gene-AGEs on weight (
Pinteraction = 0.04), fat
mass (
Pinteraction = 0.03), waist circumference (
Pinteraction = 0.008) and cholesterol (
Pinteraction = 0.04) level.
Accordingly, higher consumption of protein or fat based foods constitute high amount of AGEs and
heterozygote genotype for FADS2
tended to show lower level of AGEs content. These findings address
further investigation to develop new approaches for nutritional interventions. |