Glucagon-like peptide 1(GLP-1) is a kind of endogenous hormone produced in enteroendocrine L cells of the gut and its particular role is to regulate the secretion of insulin and glucagon.More and more research results show that GLP-1 and its analogies play an important role in the regulation of proliferation and differentiation ofβcells,the inhibition of cell apoptosis,promotion of insulin release,the decrease of blood sugar,the improvement of sugar tolerance and so on through activating its receptor.In rec...