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Study uncovers novel genetic variation linked to increased risk of sudden cardiac arrest
Date:6/30/2011

rapy.

The discovery came from a genome-wide association study, which examines the entire set of human genes to detect possible links between genetic variations and specific conditions or diseases. In this study, researchers from the Cedars-Sinai Heart Institute, Johns Hopkins University School of Medicine, along with researchers from the National Institutes of Health, Harvard University, Wake Forest University School of Medicine, Oregon Health and Science University, Finland, Canada and the Netherlands compared the genetic makeup of 4,402 subjects who had experienced sudden cardiac arrest to the DNA of 30,000 control subjects who had no history of the disorder.

Based on a comparison of the two groups, a genetic variation in the BAZ2B gene was found to be associated with a significantly increased risk of sudden cardiac arrest.

"If you have this genetic variation in your DNA, it appears that you may have a two-fold higher likelihood of sudden cardiac arrest," said Chugh, the Pauline and Harold Price Chair in Cardiac Electrophysiology Research.

The researchers also studied the link between other genetic variations that account for EKG abnormalities and were able to pinpoint several that can also be used for improving the prediction of sudden cardiac arrest in the community.


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Contact: Sally Stewart
Sally.stewart@cshs.org
310-248-6566
Cedars-Sinai Medical Center
Source:Eurekalert

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