DEPTOR polymorphisms influence late complications in Type 2 diabetes patients.

Aim: We investigated if DEPTOR polymorphisms influence metabolic parameters and risk for vascular complications in Type 2 diabetes (T2D) patients. Methods: T2D patients were genotyped for DEPTOR rs7840156, rs2271900 and rs4871827. We built low homology model of DEPTOR to check the position of two investigated substitutions within the protein 3D structure. Results: Carriers of polymorphic DEPTOR rs4871827 A allele had higher HDL cholesterol than noncarriers (p = 0.008). Risk for macrovascular and microvascular complications was increased in rs4871827 GG normal genotype carriers (p = 0.006 and p = 0.021, respectively). Low homology model of DEPTOR has shown that p.Ser389Asn substitution resulting from rs4871827 polymorphism is located at the interaction surface with mTOR. Conclusion: Our data suggest role of DEPTOR polymorphism in T2D vascular complication. First draft submitted: xxx; Accepted for publication: xxx; Published online: TBC.

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