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Live-Donor Transplant May Treat Diabetes

Woman Donates Half of Pancreas to Aid Daughter With Type 1 Diabetes
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Feb. 9, 2005 -- A 27-year-old Japanese woman with type 1 diabetes is producing insulin again after becoming the first person to receive a transplant of insulin-producing cells from a living donor.

The woman's 56-year-old mother underwent surgery at Japan's Kyoto University Hospital in mid-January to remove roughly half of her pancreas. Insulin-producing cells, known as islet cells, were taken from the removed part of the organ and transfused into her daughter. Once transfused, the islet cells began to produce insulin.

About 500 islet cell transplants have been performed over the past five years using pancreases taken from cadavers. But procedure pioneer James Shapiro, MD, says organs taken from live donors offer several potential advantages.

Toxins produced as a result of brain death and drugs a person might receive before death often damage the pancreas's ability to produce insulin, as does cold storage after the organ is removed from the body.

"In theory, the pancreas from a living donor should function far better than the cadaveric organs," Shapiro tells WebMD. "But it is too early to tell if this is the case."

Approximately 1 million Americans have type 1 diabetes, but most can adequately manage their disease with daily insulin injections.

But despite insulin injections, some patients continue to have dangerous and potentially fatal blood sugar swings.

Shapiro estimates that 10% of people with type 1 diabetes may be candidates for islet cell transplants. Islet cell recipients have to stay on a special combination of immune-suppressing drugs for the rest of their lives to avoid rejection of the donor cells. Theses drugs have significant side effects including increased risks of infections, mouth sores, and stomach problems. They have also been linked to a higher risk of cancer.

Because of the need for these potent drugs, the procedure has mostly been done in patients who are already on such drugs because they have had a kidney transplant.

The woman who received part of her mother's pancreas had been on a cadaver transplant list for several months.Diabetic and On Insulin? Take a Quality of Life Quiz.

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