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Heart Disease

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
Scientists at the Cedars-Sinai Heart Institute have successfully reprogrammed ordinary heart cells to become exact replicas of so-called “pacemaker” heart cells. Such replica cells could conceivably one day be used instead of electronic pacemakers, in patients with heart disease. Read More
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
Atherosclerosis, more commonly known as hardening of the arteries, can have very serious consequences such as heart attacks and strokes. While there are medications that remove some of the offending plaque from the inside of the affected arteries, not everyone wants to take drugs unless absolutely necessary. Lifestyle improvements can certainly help, but soon two other options may be available – probiotics and genetically-engineered tomatoes. Read More
Most people probably know that plaque buildup in the arteries surrounding the heart is one of the major causes of heart disease. The reason that the plaque does accumulate, however, is often due to an inflammation of the artery walls. Recently, scientists from California’s La Jolla Institute for Allergy & Immunology were able to identify the type of immune cells responsible for that inflammation. With this knowledge in hand, they now hope to be able to develop a vaccine for heart disease. Read More
Researchers from Purdue University in Indiana are testing a compound found in red wine that has the ability to block the processes of fat cell development. The research into the compound known as piceatannol may lead towards finding a simple method to combat obesity. Read More
Universities and scientific organizations all over the world are currently looking into ways of growing functioning heart cells on the heart, to replace the tissue that dies when a heart attack occurs. As things currently stand, the body replaces that tissue with non-beating scar tissue, leaving the heart permanently weakened. Most of the experimental techniques for generating new tissue involve introducing some sort of micro-scaffolding to the affected area, providing a framework for new cells to grow on. That scaffolding has consisted of materials such as carbon nanofibers and gold nanowires, which would have to be surgically applied to the heart, sort of like a Band-Aid. Now, however, researchers from the University of California, San Diego are reporting success in animal trials, using an injectable hydrogel. Read More
Although people do regularly recover from heart attacks, the heart itself never entirely “gets better.” This is because cardiac muscle tissue doesn’t regenerate – any that dies in the event of a heart attack will only be replaced with inactive scar tissue, and the heart’s performance will be permanently compromised as a result. Scientists have responded by trying to develop heart patches made of materials that act as nanoscale scaffolds, upon which new cardiomyocytes (heart cells) can grow. Materials used for these scaffolds have included fibrin, nanofiber, gold nanowires and polymer. Now, new research is suggesting that silkworm silk may be a better choice than any of those. Read More
Chocolate lovers are unlikely ever to need encouragement to indulge, but just in case, here's some good news: researchers have found that higher levels of chocolate consumption have been associated with a 37% reduction in the risk of developing cardiovascular disease, 31% reduction in diabetes and a 29% reduction for stroke. Read More
Overly-viscous blood can damage blood vessels and lead to heart attacks. Therefore, people who are at risk of heart attacks take medications such as Aspirin, in order to thin their blood. Such drugs can have unpleasant side effects, however, and can only be taken a certain number of times per day. Prof. Rongjia Tao, a physicist from Philadelphia's Temple University, now thinks he might have come up with a better way of thinning human blood - he subjects it to magnetic fields. Read More
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