Insulin signal transduction pathway signals the conversion of the glycogen already stored in the liver cells into glucose. This process is called glycogenolysis. Conversely, when the blood-glucose levels are too high, the pancreas is signaled to release insulin. Insulin is delivered to the liver and other tissues throughout the body (e.g., muscle, adipose). When the insulin is introduced to the liver, it connects to the insulin receptors already present, that is tyrosine kinase receptor. These receptors have two alpha subunits (extracellular) and two beta subunits (intercellular) which are connected through the cell membrane via disulfide bonds. When the insulin binds to these alpha subunits,
Insulin pen pen systems: durable and prefilled: Most brands of insulin are now available for use in pens, these include: Insulin pens are used by 95% of insulin-treated patients in Europe, Asia, Australia and Scandinavia with excellent results. They are currently underutilized but growing in use in the United States. Insulin pens offer several significant advantages over insulin syringes: ease of handling, accuracy, and they are more discreet to use and easier to transport. Insulin pens have a number of advantages: It is important that proper injection sites on the body be used. A healthcare provider helps determine the best injection site