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4 out of 106 heart replacement valves from pig hearts failed

Pig heart valves used to replace defective aortic valves in human patients failed much earlier and more often than expected, says a report from cardiac surgeons at Washington University School of Medicine in St. Louis. This is the first report to demonstrate this potential problem, the researchers say.

Bisphenol A exposure increases risk of abnormal heart rhythms in female rodents

The chemical bisphenol A, commonly found in many plastic household items, has been linked to yet another health problem in animals -- an increased frequency of arrhythmias, or heartbeat irregularities, a new study found. The results, seen only in females, will be presented Saturday at The Endocrine Society's 91st Annual Meeting in Washington, D.C.

Use science to convince teens a sober prom is better, AAAS says

Washington, D.C. -- This is the time of year when even teens who have never tried a drop of alcohol may be tempted. Middle and high school proms and graduation are big events and there will be multiple parties to attend and a wide array of opportunities for alcohol to be served.



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