Fig. 1From: Dipeptidyl peptidase 4 inhibitor improves insulin resistance in Japanese patients with type 2 diabetes: a single-arm study, a brief reportThe meal tolerance test (MTT) results. a shows glucose levels after the MTT, b insulin, c GLP-1, d GIP, and e glucagon. White circles represent the data from pre-treatment, and black squares indicate post-treatment. Mann–Whitney U test. *p < 0.05Back to article page