Glucagon-like peptide 2 (GLP-2) plays a key role in nutrient homeostasis, intestinal glucose transport and mucosal permeability. Glucagon, secreted in the A cells of the islets of Langherans, plays a key role in glucose metabolism and homeostasis. Proglucagon is processed in glucagon, GLP-1, GLP-2, glicentin and oxyntomodulin depending on tissue. Glucagon is used to treat severe hypoglycemia in insulin-dependent diabetics under the names Glucagon (Eli Lilly) and GlucaGen or Glucagon Novo Nordisk (Novo Nordisk).Rat: H-His-Ala-Asp-Gly-Ser-Phe-Ser-Asp-Glu-Met-Asn-Thr-Ile-Leu-Asp-Asn-Leu-Ala-Thr-Arg-Asp-Phe-Ile-Asn-Trp-Leu-Ile-Gln-Thr-Lys-Ile-Thr-Asp-OH or H-HADGSFSDEMNTILDNLATRDFINWLIQTKITD-OH