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Parkinson's disease gene identified with help of Mennonite family: UBC-VCH research
Date:6/26/2012

An international team led by human genetic researchers at the University of British Columbia and Vancouver Coastal Health has identified the latest gene associated with typical late-onset Lewy body Parkinson's disease (PD), with the help of a Canadian Mennonite family of Dutch-German-Russian ancestry.

Twelve of the 57 members of the Saskatchewan family who participated in the study had previously been diagnosed with PD.

UBC Medical Genetics Prof. Matthew Farrer, who led the research, notes that unequivocal confirmation of the gene's linkage with PD required DNA samples from thousands of patients with PD and healthy individuals. He refers to the new discovery as the "missing link," as it helps to unify past genetic discoveries in PD.

"A breakthrough like this would not be possible without the involvement and support of the Saskatchewan Mennonite family who gave up considerable time, contributed clinical information, donated blood samples, participated in PET imaging studies and, on more than one occasion following the death of an individual, donated brain samples," says Farrer, Canada Excellence Research Chair in Neurogenetics and Translational Neuroscience and the Dr. Donald Rix BC Leadership Chair in Genetic Medicine.

"We are forever indebted to their generosity and contribution to better understanding and ultimately finding a cure for this debilitating disease."

The mutation, in a gene called DNAJC13, was discovered using massively parallel DNA sequencing. Conclusive evidence came from the identification of the gene mutation in several other families across many Canadian provinces, including British Columbia.

"This discovery is not only significant for researchers, but also for those families carrying this genetic mutation and afflicted with this disease in that it offers hope that something good might yet result from their suffering," says Bruce Guenther, President of the Mennonite Brethren Biblica
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Contact: Brian Lin
brian.lin@ubc.ca
604-822-2234
University of British Columbia
Source:Eurekalert

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