Insulin signal transduction pathway is secreted after glucose enters the beta cell and that triggers several other processes in a chain reaction. While insulin is secreted by the pancreas to lower blood glucose levels, glucagon is secreted to raise blood glucose levels. This is why glucagon has been known for decades as a counter-regulatory hormone. When blood glucose levels are low, the pancreas secretes glucagon, which in turn causes the liver to convert stored glycogen polymers into glucose monomers, which is then released into the blood. This process is called glycogenolysis. Liver cells, or hepatocytes, have glucagon receptors which allow for glucagon to attach
Insulin detemir B.A., Sanjoy Paul, Ph.D., Jonathan C. Levy, M.D., F.R.C.P., for the 4-T Study Group 2. http://www.springerlink.com/content/6lktug1r2exurq0j/?p=af5e2f613a0f4c6690f8fdc920f48bd6&pi=5, (2007) Insulin analogues (insulin detemir and insulin aspart) versus traditional human insulins (NPH insulin and regular human insulin) in basal-bolus therapy for patients with Type 1 diabetes, "Journal Diabetologia", volume 47, number 4 / April, 2004. Insulin detemir Insulin detemir is a long-acting human insulin analogue for maintaining the basal level of insulin. Novo Nordisk markets it under the trade name Levemir. It is an insulin analogue in which a fatty acid (myristic acid) is bound to the lysine amino acid at position B29.