Enzyme doesn't act alone in atrial fibrillation

(June 17, 2009) - An overactive enzyme is behind a leaky calcium channel that plays a role in the development of atrial fibrillation, which is the most common cardiac arrhythmia that is responsible for a third of all strokes. However, it doesn't act alone, say researchers at Baylor College of Medicine. The findings can be found online in the current edition of the Journal of Clinical Investigation.

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