| Outcome Measures: |
Primary: AUC (area under the curve) of plasma glucose, Differences of AUC before treatment (day 1) and after treatment (day 2) is compared between treatment groups, day 1 and day 2 of each period|AUC of insulin, Differences of AUC before treatment (day 1) and after treatment (day 2) is compared between treatment groups, day 1 and day 2 of each period|AUC of intact GLP-1, Differences of AUC before treatment (day 1) and after treatment (day 2) is compared between treatment groups, day 1 and day 2 of each period|AUC of C-peptide, Differences of AUC before treatment (day 1) and after treatment (day 2) is compared between treatment groups, day 1 and day 2 of each period|AUC of glucagon, Differences of AUC before treatment (day 1) and after treatment (day 2) is compared between treatment groups, day 1 and day 2 of each period|MAGE, Differences of MAGE before treatment (day 1) and after treatment (day 2) is compared between treatment groups, day 1 and day 2 of each period|AUC of DPP-4 activity, Differences of AUC before treatment (day 1) and after treatment (day 2) is compared between treatment groups, day 1 and day 2 of each period |
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