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Heart Disease


— Medical

Mini simulated cardiovascular system could speed testing of medications

When scientists want to find out how a new medication will affect the cardiovascular system, the traditional way of doing so is via animal or human trials. This takes time, can be potentially harmful to the test subjects, and doesn't always deliver conclusive results. Thanks to a device created at Coventry University in the UK, however, the testing process may soon be quicker, safer and more reliable. Read More
— Medical

"Heart disease-on-a-chip" could usher in an age of personalized medicine

When we've previously heard about "organs on a chip," they've been miniature recreations of healthy organs. If they're being used for research into the treatment of health problems, however, then it only makes sense that those "organs" should have something wrong with them. With that in mind, a group of Harvard scientists have created the world's first lab-grown sample of functioning human heart tissue that has a cardiovascular disease. Read More
— Medical

Harvard researchers find protein that could reverse the aging process

Researchers from the Harvard Stem Cell Institute (HSCI) have shown that injections of a protein dubbed GDF11, when administered to older mice, appear to cause a reversal of many signs of aging. Analysis showed that every major organ system tested displayed signs of improvement, with the protein even appearing to reverse some of the DNA damage which is synonymous with the aging process itself. Read More
— Medical

Human stem cells used to repair damaged monkey hearts

In what could mark a significant breakthrough in the treatment of heart disease, researchers at the University of Washington (UW) have successfully repaired damaged tissue in monkey hearts using cells created from human embryonic stem cells. The findings demonstrate an ability to produce these cells on an unprecedented scale and hold great potential for restoring functionally of damaged human hearts. Read More
— Medical

Electronic membrane could provide high-res heart care

When it comes to monitoring the electrical activity of the heart, or delivering electrical stimulation to it (as in the case of pacemakers), most current technologies rely on electrodes that make contact with the organ in just a few locations. That doesn't necessarily provide a very detailed picture of what's going on, nor does it deliver stimulation all that evenly. Now, scientists have created a sensor-laden three-dimensional elastic membrane that can be pulled over the whole heart, to provide a large number of contact points. Read More
— Medical

Small adhesive patch outperforms traditional tech for detecting arrhythmia

Ordinarily, when doctors wish to monitor an ambulatory patient for heartbeat irregularities, they have them wear what is know as a Holter monitor. The device is fairly cumbersome, so it's usually worn for no more than 24 hours. A recent study, however, indicates that the relatively new ZIO Patch provides more accurate readings, while being considerably less obtrusive. Read More
— Health and Wellbeing

Artificial heart tissue could replace and regrow the real thing

One of the things that makes heart disease so problematic is the fact that after a heart attack occurs, the scar tissue that replaces the damaged heart tissue isn’t capable of expanding and contracting – it doesn’t “beat,” in other words. This leaves the heart permanently weakened. Now, however, scientists from Harvard-affiliated Brigham and Women's Hospital (BWH) have developed artificial heart tissue that may ultimately provide a solution to that problem. Read More
— Health and Wellbeing

Micro-bubbles may help prevent heart attacks and strokes

Heart attack and stroke-causing plaque deposits in the arteries are typically preceded by an inflammation of the arteries in those same areas. Therefore, if doctors could be aware of those inflamed regions before plaque deposits formed and problems such as chest pains arose, a lot of hardship could potentially be avoided. Well, that soon may be possible, thanks to some tiny bubbles. Read More
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