Suppression of glucagon secretion is lower after oral glucose administration than during intravenous glucose administration in human subjects

[31] Pederson RA(1983)Hamster preproglucagon gene contains the sequence of glucagon and two related peptides Nature 302 716-718

[32] Brown JC(2003)GLP-1 and GIP are colocalized in a subset of endocrine cells in the small intestine Regul Pept 114 189-196

[33] Meier JJ(2003)The reduction in hepatic insulin clearance after oral glucose is not mediated by gastric inhibitory polypeptide (GIP) Regul Pept 113 95-100

[34] Gallwitz B(2003)Differential regional metabolism of glucagon in anesthetized pigs Am J Physiol Endocrinol Metab 285 E552-E560

[35] Siepmann N(2005)Loss of the decrement in intraislet insulin plausibly explains loss of the glucagon response to hypoglycemia in insulin-deficient diabetes: documentation of the intraislet insulin hypothesis in humans Diabetes 54 757-7764

[36] Meier JJ(2004)Regulation of alpha-cell function by the beta-cell in isolated human and rat islets deprived of glucose: the “switch-off” hypothesis Diabetes 53 1488-1495

[37] Nauck MA(2005)Basal receptor activation by locally produced glucagon-like peptide-1 contributes to maintaining beta-cell function Mol Endocrinol 19 1373-1382

[38] Pott A(1998)Exendin-(9–39) is an inverse agonist of the murine glucagon-like peptide-1 receptor: implications for basal intracellular cyclic adenosine 3′,5′-monophosphate levels and beta-cell glucose competence Endocrinology 139 4448-4454

[39] Nauck M(2000)Characterisation of beta-cell dysfunction of impaired glucose tolerance: evidence for impairment of incretin-induced insulin secretion Diabetologia 43 852-858

[40] Stöckmann F(2003)Beta-cell deficit and increased beta-cell apoptosis in humans with type 2 diabetes Diabetes 52 102-110

[31] Pederson RA(1983)Hamster preproglucagon gene contains the sequence of glucagon and two related peptides Nature 302 716-718

[32] Brown JC(2003)GLP-1 and GIP are colocalized in a subset of endocrine cells in the small intestine Regul Pept 114 189-196

[33] Meier JJ(2003)The reduction in hepatic insulin clearance after oral glucose is not mediated by gastric inhibitory polypeptide (GIP) Regul Pept 113 95-100

[34] Gallwitz B(2003)Differential regional metabolism of glucagon in anesthetized pigs Am J Physiol Endocrinol Metab 285 E552-E560

[35] Siepmann N(2005)Loss of the decrement in intraislet insulin plausibly explains loss of the glucagon response to hypoglycemia in insulin-deficient diabetes: documentation of the intraislet insulin hypothesis in humans Diabetes 54 757-7764

[36] Meier JJ(2004)Regulation of alpha-cell function by the beta-cell in isolated human and rat islets deprived of glucose: the “switch-off” hypothesis Diabetes 53 1488-1495

[37] Nauck MA(2005)Basal receptor activation by locally produced glucagon-like peptide-1 contributes to maintaining beta-cell function Mol Endocrinol 19 1373-1382

[38] Pott A(1998)Exendin-(9–39) is an inverse agonist of the murine glucagon-like peptide-1 receptor: implications for basal intracellular cyclic adenosine 3′,5′-monophosphate levels and beta-cell glucose competence Endocrinology 139 4448-4454

[39] Nauck M(2000)Characterisation of beta-cell dysfunction of impaired glucose tolerance: evidence for impairment of incretin-induced insulin secretion Diabetologia 43 852-858

[40] Stöckmann F(2003)Beta-cell deficit and increased beta-cell apoptosis in humans with type 2 diabetes Diabetes 52 102-110