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Global Translational Medicine                                                    FTO gene and obesity




                                                                    [21]
            Table 3. Association of the studied polymorphic variants   shown . In addition, pronounced population differences
            with average BMI values in the Belarusian population  were observed for these polymorphic variants – an
                                                               association of BMI and a risk for obesity among Europeans
            SNP     Genotype  n  Mean BMI   Difference    P
                                  (SD)      (95% CI)           was shown, while this kind of relationship was not observed
                                                               in Chinese and Hispanic or African Americans .
                                                                                                    [22]
            rs10852521 C/C  184 27.43 (6.55)  0.00    0.23
                    C/T     322 26.94 (6.05) −0.49 (−1.59 – 0.61)  To conduct a more detailed assessment of the association
                    T/T     114 26.18 (5.21) −1.25 (−2.66 – 0.17)  of polymorphic variants of genes with an obesity progression
                                                               risk selected for the study, a BMI > 30 subgroup was formed
            rs11075990 A/A  197 25.64 (5.02)  0.00    0.0022   from  the  general  group  of  patients.  Table  4  presents  the
                    A/G     316 27.47 (6.30)  1.83 (0.76 – 2.89)  comparison of genotype frequencies in the group of BMI >
                    G/G     121 27.39 (6.55)  1.74 (0.39 – 3.10)  30 patients in comparison with the BMI < 25 control.
            rs1121980  C/C  165 25.72 (5.05)  0.00    0.015      The results demonstrated in Table 4 were fully confirmed by
                    C/T     340 27.27 (6.19)  1.55 (0.43 – 2.66)  the data obtained when comparing the FTO gene association
                    T/T     130 27.36 (6.56)  1.65 (0.27 – 3.02)  with average BMI values in the Belarusian population.
                                                               A significant association of the genotype with the body mass
            rs1421085  T/T  182 25.95 (5.07)  0.00    0.021    index was observed for the same eight polymorphic variants
                    C/T     335 27.38 (6.23)  1.43 (0.35 – 2.50)
                                                               of the FTO gene. The most significant differences between
                    C/C     129 27.46 (6.41)  1.51 (0.16 – 2.85)  the groups were observed in the distribution of genotypes
            rs1477196  G/G  291  27.1 (6.16)  0.00    0.62     of the rs11075990 polymorphic variant (P  = 0.0042). The
                    A/G     281 27.14 (6.00) 0.04 (−0.95 – 1.03)  observed differences remained significant after adjustment
                                                               for age and gender. The minor G/G genotype was found in
                    A/A     62  26.33 (5.40) −0.77 (−2.42 – 0.88)
                                                               22.5% of obese patients. It turned out to be more frequently
            rs17817449 T/T  207 25.78 (5.03)  0.00    0.0027   occurring than the major A/A genotype.
                    G/T     312 27.48 (6.18)  1.70 (0.66 – 2.73)
                                                                 In this study, no association of polymorphic variants
                    G/G     124 27.56 (6.47)  1.77 (0.46 – 3.08)
                                                               rs10852521, rs1477196, rs4783819, rs7206790, and
            rs3751812  G/G  204 25.88 (5.03)  0.00    0.0072   rs8047395 with a risk for obesity was found. At the same
                    G/T     319 27.48 (6.24)  1.60 (0.56 – 2.65)  time,  there  is  evidence  that  rs1477196  provokes  the
                    T/T     125 27.41 (6.49)  1.53 (0.20 – 2.85)  development of obesity in the case of insufficient physical
                                                                     [23]
            rs4783819  C/C  293 27.05 (6.18)  0.00    0.55     activity , and rs7206790 is associated with a risk of weight
                                                               gain, waist circumference and BMI .
                                                                                           [24]
                    G/C     293  27.1 (5.91)  0.05 (−0.92 – 1.01)
                    G/G     64  26.21 (5.39) −0.84 (−2.46 – 0.78)
            rs7206790  C/C  152 26.41 (5.07)  0.00    0.25
                    G/C     351 27.33 (6.27)  0.92 (−0.22 – 2.06)
                    G/G     146 26.79 (6.15) 0.38 (−0.98 – −1.74)
            rs8047395  A/A  190 27.24 (6.28)  0.00    0.62
                    A/G     340 27.03 (6.04) −0.21 (−1.27 – 0.85)
                    G/G     113 26.55 (5.29) −0.69 (−2.09 – 0.70)
            rs9939609  T/T  205 25.83 (5.05)  0.00    0.0037
                    T/A     319 27.54 (6.26)  1.71 (0.66 – 2.75)
                    A/A     123 27.47 (6.49)  1.64 (0.31 – 2.97)
            rs9940128  G/G  168 25.85 (5.08)  0.00    0.015
                    A/G     342 27.36 (6.17)  1.51 (0.41 – 2.61)
                    A/A     138 27.48 (6.39)  1.63 (0.29 – 2.97)
            rs9941349  C/C  190 25.73 (5.05)  0.00    0.003
                    C/T     325 27.41 (6.07)  1.68 (0.63 – 2.73)
                    T/T     132 27.58 (6.47)  1.84 (0.54 – 3.15)  Figure  3.  The  distribution  of  genotypes  of  the  FTO  rs11075990
            BMI: Body mass index; CI: Confidence interval; SD: Standard deviation.  polymorphic variant in the studied groups.


            Volume 2 Issue 2 (2023)                         5                         https://doi.org/10.36922/gtm.352
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