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Research suggests popular diabetes drugs can cause abnormal pancreatic growth in humans
Date:3/27/2013

Individuals who had taken a type of drug commonly used to treat Type 2 diabetes showed abnormalities in the pancreas, including cell proliferation, that may be associated with an increased risk of neuroendocrine tumors, according to a new study by researchers from UCLA and the University of Florida. Their findings were published online March 22 in the journal Diabetes.

The researchers, from the Larry L. Hillblom Islet Research Center at UCLA and the Diabetes Center at the University of Florida, found that cell mass was increased approximately 40 percent in the pancreases of deceased organ donors who had Type 2 diabetes and who had been treated with incretin therapy. This widely used type of treatment takes advantage of the action of a gut hormone known as glucagon-like peptide 1 (GLP-1) to lower blood sugar in the body.

Although there have been conflicting reports on the effects of the incretin class of drugs on the pancreas in animal studies, this is the first study to note such changes in the human pancreas. The research was made possible by a unique research consortium called nPOD (Network for Pancreatic Organ Donors with Diabetes), led by Dr. Mark Atkinson, a professor of pathology and pediatrics at the University of Florida. The network, which is funded by the Juvenile Diabetes Research Foundation, obtains pancreases from deceased organ donors, with permission of their next of kin, to better understand diabetes by investigating tissues of those with the disease.

"There is an increasing appreciation that animal studies do not always predict findings in humans," said Dr. Peter Butler, director of UCLA's Hillblom Islet Research Center and chief of the endocrinology, diabetes and hypertension unit. "The nPOD program is therefore a very precious resource." The researchers examined the pancreases of 20 deceased organ donors with Type 2 diabetes. Eight had been treated for at least a year with incretin therapy, while th
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Contact: Enrique Rivero
erivero@mednet.ucla.edu
310-794-2273
University of California - Los Angeles Health Sciences
Source:Eurekalert

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