A Model for Studying Mechanisms and Treatment of Impaired Glucose Tolerance and Type 2 Diabetes Abstract This study characterizes the high-fat diet–fed mouse as a model for impaired glucose tolerance (IGT) and type 2 diabetes. Female C57BL/6J mice were fed a high-fat diet (58% energy by fat) or a normal diet (11% fat). Body weight
Modulation of Islet Hormone Release by GLP-1 Agonism Abstract Glucagon-like peptide (GLP)-1 is a gut hormone that stimulates insulin secretion, gene expression, and β-cell growth. Together with the related hormone glucose-dependent insulinotropic polypeptide (GIP), it is responsible for the incretin effect, the augmentation of insulin secretion after oral as opposed to intravenous administration of glucose.
Abstract This article proposes five stages in the progression of diabetes, each of which is characterized by different changes in β-cell mass, phenotype, and function. Stage 1 is compensation: insulin secretion increases to maintain normoglycemia in the face of insulin resistance and/or decreasing β-cell mass. This stage is characterized by maintenance of differentiated function with