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Researchers develop new model for cystic fibrosis
Date:9/25/2008

In a first, researchers at the University of Iowa and the University of Missouri (MU) have developed a pig model for cystic fibrosis (CF) that appears to closely mimic the disease in human infants. The striking similarities between disease manifestations in the CF piglets and human newborns with CF suggest that this new model will help improve understanding of the disease and may also speed discovery of new treatments. The study is published in the Sept. 26 issue of Science.

CF is a common hereditary disease that affects multiple organ systems, including the intestines, pancreas, and lung. Mice with CF-causing mutations have helped researchers learn more about this disease, however, differences in physiology and biology mean that mice with CF mutations do not develop many of the typical symptoms that affect humans with CF.

"Lack of a better model has hampered our ability to answer long-standing questions in CF," explained Christopher Rogers, Ph.D., a former postdoctoral fellow in internal medicine at the UI Roy J. and Lucille A. Carver College of Medicine, and one of the study's lead authors. "The CF pig provides a unique opportunity to study one of the most common genetic diseases, and we hope to translate this new knowledge into better therapies and preventions."

In addition to Rogers, co-lead authors of the study were David Stoltz, M.D., Ph.D., UI assistant professor of internal medicine, and David Meyerholz, D.V.M., Ph.D., UI assistant professor of pathology.

The senior study author was Michael Welsh, M.D., UI professor of internal medicine and molecular physiology and biophysics, who holds the Roy J. Carver Chair of Internal Medicine and Physiology and Biophysics. Welsh also is a Howard Hughes Medical Institute investigator.

CF occurs when a person inherits two mutated copies of the CFTR gene leading to loss of ion channel function that adversely affects many organs. To create the CF pigs, the researc
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Contact: Jennifer Brown
jennifer-l-brown@uiowa.edu
319-335-9917
University of Iowa
Source:Eurekalert

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