• Saeid Doaei, Naser Kalantari, Nastaran Keshavarz Mohammadi, Pantea Izadi, Maryam Gholamalizadeh, Hassan Eini-Zinab, Tuire Salonurmi, JarrahiAlireza MosaviAMStudent Research Committee, Cancer Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran., Shahram Rafieifar, Reza Janipoor, Mahnaz Sadeghypor, Ghasem Azizi Tabesh, and Mark O Goodarzi.
• Research Center of Health and Environment, Guilan University of Medical Sciences, Rasht, Iran.
• Arch Med Sci. 2019 Sep 1; 15 (5): 1133-1137.

IntroductionThe modifying effect of FTO gene expression level on change in body mass index and body composition has not been studied before. This study aimed to investigate the association between change in the expression level of the FTO gene and changes in anthropometric measurements in obese and overweight adolescent boys.Material And MethodsEighty-four boys aged 12 to 16 years participated in this longitudinal study. A Bio Impedance Analyzer (BIA) was used to estimate percentage of body fat (%BF) and percentage of skeletal muscle (%SM). The FTO gene expression level in peripheral blood mononuclear cells was assessed using quantitative real-time PCR (qPCR). All measurements were performed at baseline and after 18 weeks.ResultsAfter 18 weeks, mean weight was reduced by 2.39 kg, body mass index by 0.09 kg/m2, %BF by 0.82% and %SM increased by 0.44%. Moreover, the level of FTO gene expression increased 0.42-fold higher than baseline. The change in expression level of the FTO gene was positively associated with change in %SM (β = 0.31, p = 0.02).ConclusionsFTO gene expression change was associated with change in %SM in male adolescents. Future studies are required to assess the interactions between FTO gene expression in different tissues and body composition.Copyright: © 2019 Termedia & Banach.

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