A–L: Xenin-25 amplifies the effects of GIP on plasma insulin, C-peptide, and glucose levels and ISRs in humans with NGT and IGT but not T2DM. A–L: Xenin-25.

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A–L: Xenin-25 amplifies the effects of GIP on plasma insulin, C-peptide, and glucose levels and ISRs in humans with NGT and IGT but not T2DM. A–L: Xenin-25 amplifies the effects of GIP on plasma insulin, C-peptide, and glucose levels and ISRs in humans with NGT and IGT but not T2DM. Subjects with NGT, IGT, or T2DM were administered GGIs with albumin alone (Alb), GIP alone (GIP), xenin-25 alone (Xen), or the combination of GIP plus xenin-25 (G+X). Group average values ± SEM for insulin, C-peptide, ISR, and glucose are shown. Burton M. Wice et al. Diabetes 2012;61:1793-1800 ©2012 by American Diabetes Association