Heart Attack (Myocardial Infarction) News and Research

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A Heart Attack (Myocardial Infarction) occurs when blood flow to a section of heart muscle becomes blocked. If the flow of blood isn’t restored quickly, the section of heart muscle becomes damaged from lack of oxygen and begins to die.

Heart attack is a leading killer of both men and women in the United States. But fortunately, today there are excellent treatments for heart attack that can save lives and prevent disabilities. Treatment is most effective when started within 1 hour of the beginning of symptoms. Heart attacks occur most often as a result of a condition called coronary artery disease (CAD). In CAD, a fatty material called plaque (plak) builds up over many years on the inside walls of the coronary arteries (the arteries that supply blood and oxygen to your heart). Eventually, an area of plaque can rupture, causing a blood clot to form on the surface of the plaque. If the clot becomes large enough, it can mostly or completely block the flow of oxygen-rich blood to the part of the heart muscle fed by the artery.

New molecule could be key to anti-heart attack drug

When too many blood platelets stick together in the bloodstream, they form dangerous clots that can clog blood vessels and cause a heart attack. If a clot doesn't get dissolved or rapidly removed, it can cause permanent damage or even death.

17 Apr 2008

Creatinine increase in elderly means increased renal disease, mortality

Even small increases in serum creatinine levels during hospitalization raise the risk of end stage renal disease and mortality of elderly patients over the long term, according to a University of Alabama at Birmingham (UAB) study in the Archives of Internal Medicine.

16 Apr 2008

Drug-treated blood stem cells used to repair heart damage in animal model

Researchers at UT Southwestern Medical Center have for the first time used drug-treated blood stem cells to repair heart damage in an animal model, results that might point to methods for healing injuries from heart attacks or disease.

15 Apr 2008

Profoundly important discovery of differences in heart's precursor cells

Scientists have long thought that the cells that ultimately give rise to the heart all respond to the same cue before turning into the muscle tissue of this vital organ.

15 Apr 2008

DASH diet also may cut risk for heart disease, stroke

Women who eat diets similar to the Dietary Approaches to Stop Hypertension (DASH) diet -which is low in animal protein, moderate in low-fat dairy products and high in plant proteins, fruits and vegetables - appear to have a lower risk of coronary heart disease and stroke, according to a report in the April 14 issue of Archives of Internal Medicine, one of the JAMA/Archives journals.

15 Apr 2008

Statins may help control blood pressure

Researchers in the States say that statins, the popular cholesterol-lowering drugs, may also lower blood pressure.

15 Apr 2008

Stopping unwanted cell death: novel avenue for drug development

Research published in Nature Chemical Biology reveals that three specific inhibitors of a cell death pathway, termed necroptosis, all target and inhibit RIP1 kinase, a protein that can direct cells into necrosis.

13 Apr 2008

Carotid stenting shows long-term benefit as alternative to surgery

Carotid artery stenting is an effective option for high risk patients who are not eligible for surgery, according to a long-term study published in this week's New England Journal of Medicine.

11 Apr 2008

Sexual dysfunction in postmenopausal women not linked to heart disease

Although sexual dysfunction in some men is predictive of cardiovascular disease, this association has never been examined in women.

10 Apr 2008

Potential drug target identified for diabetes by studying novel gut-brain-liver circuit

Scientists at the Toronto General Hospital Research Institute have discovered a novel signaling pathway between three organs - the gut, the brain, and the liver - which lowers blood sugar when activated.

10 Apr 2008

Carotid endarterectomy versus carotid stenting for clogged neck arteries

Like horses running down the long stretch of a race track, two different artery-opening treatments appear to be running neck-and-neck when it comes to preventing stroke among people with clogged neck arteries and other health problems.

10 Apr 2008

Post-traumatic stress treatment in children

Post traumatic stress disorder is commonly thought to effect victims of major trauma and those who witness violence, but a new University of Georgia study finds that it also can affect children who have lost a parent expectedly to diseases such as cancer.

9 Apr 2008

Microwave therapy for enlarged prostates can cause surges in blood pressure

Many men who receive microwave therapy for enlarged prostates experience significant surges in blood pressure that could raise their risk of a heart attack or stroke, according to new research findings published recently in Mayo Clinic Proceedings.

9 Apr 2008

Cholesterol, blood pressure control may reverse atherosclerosis in adults with diabetes

Aggressively lowering cholesterol and blood pressure levels below current targets in adults with type 2 diabetes may help to prevent – and possibly reverse – hardening of the arteries, according to new research supported by the National Heart, Lung, and Blood Institute (NHLBI) of the National Institutes of Health.

9 Apr 2008

Angina drug ranolazine potentially useful against heart rhythm disorders

A recently approved angina drug may also represent a powerful new treatment for a rare hereditary syndrome that places teens at risk for sudden cardiac death, according to research presented on April 1st at the 57th Annual Scientific Sessions of the American College of Cardiology (ACC) in Chicago.

9 Apr 2008