eISSN: 1896-9151
ISSN: 1734-1922
Archives of Medical Science
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SCImago Journal & Country Rank
5/2019
vol. 15
 
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abstract:
Basic research

Up-regulation of FTO gene expression was associated with increase in skeletal muscle mass in overweight male adolescents

Saeid Doaei
,
Naser Kalantari
,
Nastaran Keshavarz Mohammadi
,
Pantea Izadi
,
Maryam Gholamalizadeh
,
Hassan Eini-Zinab
,
Tuire Salonurmi
,
Alireza Mosavi Jarrahi
,
Shahram Rafieifar
,
Reza Janipoor
,
Mahnaz Sadeghypor
,
Ghasem Azizi Tabesh
,
Mark O. Goodarzi

Arch Med Sci 2019; 15 (5): 1133–1137
Online publish date: 2019/09/04
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Introduction
The 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 methods
Eighty-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.

Results
After 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).

Conclusions
FTO 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.

keywords:

FTO, gene expression, skeletal muscle, body fat, body mass index, obesity

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