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Association between BBS6/MKKS gene polymorphisms, obesity and metabolic syndrome in the Greek population

Abstract

Objective:

To investigate the relationship between MKKS gene variations, obesity-related traits and features of the metabolic syndrome (MS) in the Greek population.

Design and subjects:

Genotype and haplotype analysis was carried out for six known MKKS gene polymorphisms (534C>T, 985+16T>G, 985+33C>G, 986−29A>T, 1161+58A>G and 1595G>T) in 220 obese subjects (body mass index 30 kg/m2) and 330 non-obese controls.

Results:

Genotype frequencies of the 985+16T>G, 986−29A>T and 1595G>T SNPs were significantly different between obese and non-obese individuals (P=0.0016, 0.0196 and 0.0069, respectively). Obese carriers of the risk alleles of the above three polymorphisms had a significantly increased prevalence of arterial hypertension. Furthermore, obese carriers of the G allele for the 985+16T>G polymorphism had an increased prevalence of type 2 diabetes mellitus and of MS component traits. A new polymorphism was detected, namely a C to T substitution at position 1129 (1129C>T or N377N). Frequency of the T allele for the 1129C>T polymorphism was significantly higher in control individuals than in obese subjects (P=0.0253). Haplotype TGTGT was more prevalent in obese than in controls (P=0.0002) and was associated with increased prevalence of the MS in obese subjects (P<0.0001).

Conclusion:

Our results suggest that genetic variation in the MKKS gene may play a role in the development of obesity and the metabolic syndrome.

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Acknowledgements

All participating individuals in this study are gratefully acknowledged.

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Correspondence to A Kouvatsi.

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Supplementary Information accompanies the paper on International Journal of Obesity website (http://www.nature.com/ijo)

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Rouskas, K., Paletas, K., Kalogeridis, A. et al. Association between BBS6/MKKS gene polymorphisms, obesity and metabolic syndrome in the Greek population. Int J Obes 32, 1618–1625 (2008). https://doi.org/10.1038/ijo.2008.167

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