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  • Title: [The analysis of association between ENPP1 K121Q polymorphism and risk factors of type 2 diabetes mellitus in ukrainian population].
    Author: Marchenko IV, Dubovyk YI, Matlai OI, Biesiedina AA, Kniazkova PV, Harbuzova YA.
    Journal: Wiad Lek; 2018; 71(4):815-820. PubMed ID: 30099416.
    Abstract:
    OBJECTIVE: Introduction: More than 100 genes have been described associations between single nucleotide polymorphisms and type 2 diabetes mellitus (T2DM). Among these candidate genes, Ectonucleotide Pyrophosphatase/Phosphodiesterase 1 (ENPP1), is located on the long arm of chromosome 6 (6q23.2) and encodes for a protein which is one of the factors determining the insulin sensitivity. An allelic polymorphism in exon 4 of ENPP1 (rs1044498) has been designated K121Q and widely investigated in T2DM in different populations. The aim: To analyze the association between ENPP1 K121Q polymorphism with the risk factors of type 2 diabetes mellitus in the Ukrainian population. PATIENTS AND METHODS: Materials and methods: Venous blood of 317 patients with type 2 diabetes mellitus and 302 controls was used for analysis. ENPP1 K121Q genotyping was performed using PCR-RFLP method. RESULTS: Results: Our results revealed that ratio of K/K homozygotes, K/Q heterozygotes and Q/Q homozygotes between case and control groups was significantly different (59.3%, 34.1%, 6.6% vs 67.9%, 28.5%, 3.6%, P = 0.05). Method of binary logistic regression shown that a reliable relationship was established in the general group for KQ/QQ vs K/K genetic model (P = 0.027). It was shown that in carriers of the minor Q-allele, the risk of T2DM is 1.4x higher than in homozygotes in the main K-allele (95% CI = 1.043-2.016). After adjusting for age, sex, smoking habit, BMI, obesity and the presence of hypertension, the reliability of these results persisted (P = 0.026). CONCLUSION: Conclusions: ENPP1 K121Q polymorphism is associated with T2DM in Ukrainian population. In carriers of the minor Q-allele the risk of T2DM is 1.4x higher than in homozygotes in the main K-allele. The risk increases in patients with BMI ≥ 25 kg/m2.
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