In recent years, a new technique called "islet cell transplantation" has been developed as an alternate means of treating insulin-dependent diabetes. Pancreatic islet cells (the cells that produce insulin), from human donors, are injected into the diabetic patient's liver where the cells are capable of making insulin and can regulate blood sugar levels without the need for insulin injections. Currently, this technique is used primarily in patients with severe hypoglycemia unawareness.