GCG and diabetes mellitus: The number of patients expected to suffer from diabetes in 2040 will be 642 million worldwide, according to the International Diabetes Federation.8 Lowering the blood glucose level is the primary treatment of T2DM, which can be done through α-glucosidase inhibitors or the stimulation of insulin secretion.9 Incretins are hormones that are released from the small intestine in response to dietary intake, and have an impact similar to glucagon.