Unlabelled: Aims/Introduction: Eicosapentaenoic acid (EPA) stimulates glucagon-like peptide-1 (GLP-1) secretion in mice. We investigated the relationship between serum EPA concentrations and the efficacy of dipeptidyl-peptidase IV (DPP-4) inhibitor in patients with type 2 diabetes.
Materials And Methods: Serum EPA concentrations were measured in 62 consecutive patients with type 2 diabetes who were newly given DPP-4 inhibitor as a monotherapy or as an add-on therapy to oral hypoglycemic agents. The dosage of oral hypoglycemic agents was maintained during the observation period. After 24 weeks of treatment with DPP-4 inhibitor, we evaluated the relationships between a decrease in hemoglobin A1c from baseline and serum EPA concentrations, as well as age, sex, body mass index (BMI), hemoglobin A1c at baseline and usage of antidiabetic concomitant drugs.
Results: Hemoglobin A1c was significantly decreased from 8.1 ± 1.1% to 7.2 ± 1.0% by DPP-4 inhibitor. A decrease in hemoglobin A1c correlated with BMI (r = -0.396, P = 0.0013), age (r = 0.275, P = 0.0032), hemoglobin A1c at baseline (r = 0.490, P < 0.0001) and log EPA (r = 0.285, P = 0.0246). Multiple regression analysis showed that BMI (β = -0.419, P = 0.0002), hemoglobin A1c at baseline (β = 0.579, P < 0.0001) and log EPA (β = 0.220, P = 0.0228) were independent determinants of decrease in hemoglobin A1c.
Conclusions: DPP-4 inhibitor is effective in patients with type 2 diabetes with high serum EPA concentrations. (J Diabetes Invest, doi: 10.1111/j.2040-1124.2012.00220.x , 2012).
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| http://dx.doi.org/10.1111/j.2040-1124.2012.00220.x | DOI Listing |
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