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ScienceDaily (Mar. 11, 2009) - For every gram of salt that Americans reduce in their diets daily, a quarter of a million fewer new heart disease cases and over 200,000 fewer deaths would occur over a decade, researchers said at the American Heart Association's 49th Annual Conference on Cardiovascular Disease Epidemiology and Prevention.

An experimental device made from layered filter paper is helping Rice University bioengineers study calcifying heart diseases. The filter paper is structured in a way that mimics the layering of aortic heart valves, recreating the means by which cells spread through cardiac tissue in a laboratory setting. It may not look much like a heart valve, but in practice it simulates the proliferation process in the same way.