Journal
DIABETES RESEARCH AND CLINICAL PRACTICE
Volume 109, Issue 1, Pages 199-205Publisher
ELSEVIER IRELAND LTD
DOI: 10.1016/j.diabres.2015.04.008
Keywords
Type 2 diabetes; DPP-4 inhibitor; Sitagliptin; Fatty liver; Body fat
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Aims: To evaluate the effect of the DPP-4 inhibitor sitagliptin on intrahepatic lipid (IHL) content and body fat in overweight Japanese patients with type 2 diabetes. Methods: A prospective, 24-week, single-center, open-label comparative study enrolled 20 Japanese patients with type 2 diabetes (male: 11, female: 9) with a BMI >= 25 kg/m(2) or fatty liver. Subjects were randomly assigned to receive treatment with sitagliptin (25 mg titrated up to 50 mg: S) or glimepiride (0.5 mg titrated up to 1 mg: G). After starting each treatment, IHL and total fat mass were evaluated by H-1-magnetic resonance spectroscopy (H-1-MRS) and dual energy X-ray absorptiometry (DEXA), respectively at baseline and at 12 weeks and 24 weeks. Results: After 24 weeks, HbA1c levels showed a similar significant decrease in both groups from 7.2 (7.0, 7.5) to 6.6 (6.4, 6.8)%, (54 (53, 56) to 48(47, 49) mmol/mol) with S and 7.3(6.8, 7.4) to 6.6 (6.3, 6.7)%, (55 (51, 56) to 48 (46, 49) mmol/mol) with G, median (interquartile range), p < 0.05 vs. baseline, with no significant differences between the two groups. The IHL and total body fat mass were decreased in S group from 24.5(18.9, 36.6) to 20.5 (14.6, 28.5)% (p = 0.009) and 22.5 (20.6, 33.7) to 21.6 (19.7, 32.4) kg (p = 0.028), respectively, but not in G group. Conclusions: Our findings indicate that sitagliptin and glimepiride achieved similar glycemic control, but only sitagliptin reduced IHL and total body fat (UMIN: 000013356). (C) 2015 Elsevier Ireland Ltd. All rights reserved.
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