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Islet Cell Transplants: Continued Success

A Year After Islet Cell Transplants, Most Recipients Are Insulin Free
WebMD Health News

March 28, 2003 (Salt Lake City) -- Joan Husband of Edmonton, Alberta, was a captive of her disease: She couldn't work, drive a car, or even take a stroll around the block without the possibility of losing consciousness. But a year after undergoing an experimental procedure, Husband says, "I'm driving, I've returned to work part time. I'm planning a life with my husband."

Husband's disease is type 1 diabetes, also called insulin-dependent or juvenile-onset diabetes. After years of controlling her disease with insulin injections, Husband's disease was out of control. The insulin was no longer able to regulate the level of sugar in her blood, and her disease was so unstable that she could lose consciousness with no warning, she says.

Just over a year ago she received an islet cell transplant at the University of Alberta Hospital in Edmonton. "And my world changed," says Husband. Richard Owen, MD, assistant clinical professor of radiology at the University of Alberta, transplanted hundreds of thousands of islet cells into her liver.

Islet cells produce insulin, which allows the body to take sugar from the blood and supply it to cells, which in turn use sugar for fuel. At birth, a healthy pancreas has about 2 million islet cells, but when a person develops type 1 diabetes these cells are killed, which drastically reduces insulin levels and causes the sugar imbalance seen in diabetic people.

Though the cells are transplanted into the liver rather than the pancreas, once the cells become embedded in the liver they immediately begin producing insulin, says Owen.

To date, about 250 to 300 patients worldwide have undergone islet cell transplantation using the technique developed in Edmonton. Speaking at the 28th Annual Scientific Meeting of the Society of Interventional Radiology, Owen presented results from the first 48 patients.

Twenty-six of those patients -- including Husband -- have reached the one-year mark and 21 of them are completely insulin free (no longer taking insulin). Husband is one of those insulin-free patients. Seven patients were transplanted at least two years ago and four of them are insulin free, while three of four patients who reached the three-year mark are still insulin-free.

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