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First diagnostic test for hereditary children's disease

Date:
June 17, 2011
Source:
Queen's University
Summary:
A breakthrough in genetic research has uncovered the defect behind a rare hereditary children's disease that inhibits the body's ability to break down vitamin D. This discovery has led researchers to develop the first genetic and biochemical tests that positively identify the disease.

A breakthrough in genetic research has uncovered the defect behind a rare hereditary children's disease that inhibits the body's ability to break down vitamin D. This discovery has led researchers to develop the first genetic and biochemical tests that positively identify the disease.

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Idiopathic Infantile Hypercalcemia (IIH) is among the top ten most common inherited diseases. The researchers estimate that one in every 47,000 people -- around 600 Canadians and 6,000 Americans -- may suffer from IIH, but there was no way until now of confirming the diagnosis.

"Developing a positive diagnostic test for IIH is a major step in understanding this disease," says co-lead researcher Glenville Jones, a professor in the Department of Biomedical and Molecular Sciences. "We hope the test will be made available for the approximately 600 Canadians who may be afflicted with IHH."

The body's inability to break down vitamin D results in an excess of calcium in the blood. Children with IIH suffer from calcifications and tissue hardening throughout the body, as well as calcification of the kidneys and renal failure.

"This is classic case of research going from the bench to the bedside," explains Dr. Jones. "Our research started in the laboratory but the findings will have a definite impact on the health of Canadians."

This research was conducted in collaboration with pediatricians Martin Konrad and Karl-Peter Schlingmann from the University Children's Hospital in Munster, Germany, and funded in part by the Canadian Institutes of Health Research. The findings were published June 15 in the New England Journal of Medicine.


Story Source:

The above story is based on materials provided by Queen's University. Note: Materials may be edited for content and length.


Journal Reference:

  1. Karl P. Schlingmann, Martin Kaufmann, Stefanie Weber, Andrew Irwin, Caroline Goos, Ulrike John, Joachim Misselwitz, Günter Klaus, Eberhard Kuwertz-Bröking, Henry Fehrenbach, Anne M. Wingen, Tülay Güran, Joost G. Hoenderop, René J. Bindels, David E. Prosser, Glenville Jones, Martin Konrad. Mutations inCYP24A1and Idiopathic Infantile Hypercalcemia. New England Journal of Medicine, 2011; 110615140114030 DOI: 10.1056/NEJMoa1103864

Cite This Page:

Queen's University. "First diagnostic test for hereditary children's disease." ScienceDaily. ScienceDaily, 17 June 2011. <www.sciencedaily.com/releases/2011/06/110616113011.htm>.
Queen's University. (2011, June 17). First diagnostic test for hereditary children's disease. ScienceDaily. Retrieved March 31, 2015 from www.sciencedaily.com/releases/2011/06/110616113011.htm
Queen's University. "First diagnostic test for hereditary children's disease." ScienceDaily. www.sciencedaily.com/releases/2011/06/110616113011.htm (accessed March 31, 2015).

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