Background:

Glucagon(NH₂-His-Ser-Gln-Gly-Thr-Phe-Thr-Ser-Asp-Tyr-Ser-Lys-Tyr-Leu-Asp-Ser-Arg-Arg-Ala-Gln-Asp-Phe-Val-Gln-Trp-Leu-Met-Asn-Thr-COOH) is a peptide ?hormone, secreted by the pancreas, that raises blood glucose levels. Glucagon’s effect is opposite that of insulin, which lowers blood glucose levels. Miniglucagon (Glucagon 19–29) is a potent and efficient inhibitor of secretagogue-induced insulin release through a Ca²⁺Pathway*. Miniglucagon is a novel local regulator of the pancreatic islet physiology.? Any abnormal inhibitory tone exerted by this peptide on the β-cell results in impaired insulin secretion, as observed in type 2 diabetes. Miniglucagon is a component of the positive inotropic effect of glucagon. Some evidence has shown that glucagon processing into miniglucagon may be essential for the positive inotropic effect of glucagon on heart contraction.?

参考文献:
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