Pancreatic Islet Cell Transplantation
Islet cells are the cells in the pancreas that make insulin. Pancreatic islet cell transplantation is the transfer of islet cells from a donor to another person. The procedure is being studied as a method to treat select people with chronic, uncontrolled type 1 (and some type 2) diabetes.
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Pancreatic islet cells are made up of alpha and beta cells. Type 1 diabetes develops when the beta cells in the pancreas are destroyed. They are destroyed by the body's own immune system. Without these cells, the body is unable to make insulin. As a result, people with type 1 diabetes need daily insulin injections.
Transplants are most commonly used for persons with recurrent severe hypoglycemia (low blood sugars) and/or who are also receiving kidney transplants. Newly transplanted islet cells can produce insulin. This allows better daily control of the blood sugars with a lower risk of hypoglycemia. Hypoglycemia occurs when too much insulin is self-injected or when injected insulin to fails to adapt to changes in the body's glucose use. The transplant reduces, or even may eliminate, the need for self-injection.
Last reviewedAugust 2014by Michael Woods, MD
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