| Objective: The aim of the present study was to assess the interaction of major dietary patterns with
Cocaine- and Amphetamine-Regulated Transcript (CART) prepropeptide gene rs2239670 variant in
apparently healthy obese Iranians.
Methods: A total of 288 apparently healthy obese participants aged 20e50 years were recruited in this
cross-sectional study. Usual dietary intake was assessed using a 147-item semi-quantitative validated
food frequency questionnaire. Genotyping of the CART gene rs2239670 polymorphism was conducted by
the polymerase chain reaction-restriction fragment length polymorphism (PCReRFLP).
Results: The results showed that the majority of the participants had GG genotype (65.4%). Three dietary
patterns were extracted: prudent dietary pattern (PDP), legume dietary pattern (LDP), and mixed dietary
pattern (MDP). There were significant interactions between PDP and rs2239670 variant on fat free mass
(FFM) (p Interaction ¼ 0.039), basal metabolic rate (BMR) (p Interaction ¼ 0.039). Also, significant interactions
were observed between LDP and rs2239670 polymorphism on the diastolic blood pressure (DBP) (p
Interaction ¼ 0.026), waist to hip ratio (WHR) (p Interaction ¼ 0.050), agouti-related protein (AgRP) (p
Interaction ¼ 0.012), and a-melanocyte stimulating hormone (a-MSH) (p Interaction ¼ 0.006).
Conclusions: The CART rs2239670 SNP interacts with dietary patterns to affect some of the cardiometabolic
risk factors. |