We examined associations of eight SNPs in/near seven candidate genes with glycemic response to 6 month treatment with DPP4 inhibitors. 206 patients with type 2 diabetes (116 men and 90 women) were treated with sitagliptin or vildagliptin (both 100 mg/day) in combination with metformin or metformin/sulphonylurea over 6 months, and the reduction in glycated hemoglobin (HbA) was measured. Rs6923761 in was significantly associated with a reduction in HbA (adjusted p = 0.006). Homozygotes for the minor A allele had smaller reduction in HbA by 0.4% (4 mmol/mol) than the G allele carriers (p = 0.016). The missense variant rs6923761 in the  gene was associated with a smaller glycemic response to 6 month gliptin therapy in diabetic patients of central European origin.

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http://dx.doi.org/10.2217/pgs-2019-0147DOI Listing

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