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.

A drink or two a day may be associated with better cognitive function in women

"Women who had up to two drinks a day scored about 20 percent higher on the Mini Mental State Exam (MMSE) than women who didn't drink at all or who consumed less than one drink a week," said Clinton Wright, M.D., M.S., lead author of the study.

13 Apr 2006

Sildenafil improves blood flow after heart attack in an animal model

Dogs treated with sildenafil, a drug most commonly used to treat erectile dysfunction, had better blood flow in coronary arteries than control animals, following an induced artery obstruction and treatment that modeled a heart attack and standard medical care given to people

13 Apr 2006

How you wake up might explain near death experiences

According to a new study, people who have had near death experiences often have different arousal systems controlling the sleep-wake states than people who have never had such an experience.

12 Apr 2006

Prostate cancer risk linked to high cholesterol

Italian Researchers say they have found what they believe to be the first direct link between high cholesterol levels and prostate cancer.

12 Apr 2006

Estrogen-alone hormone therapy does not increase the risk of breast cancer in postmenopausal women

The results contrast with the previously reported WHI Estrogen plus Progestin Trial, which found an increase in breast cancer over about 5 years among those taking combined hormone therapy.

11 Apr 2006

REM state intrusion contributes to near death experiences

People who have had near death experiences often have different arousal systems controlling the sleep-wake states than people who have not had a near death experience, according to a new study published in the April 11, 2006, issue of Neurology, the scientific journal of the American Academy of Neurology.

11 Apr 2006

Guidelines for medication withdrawal

Although thousands of scientific papers evaluate and compare new and established drugs each year, providing evidence to help doctors prescribe safe and effective doses, almost no studies focus on when or how to stop these medications, even late in life.

11 Apr 2006

MPD Foundation funds research for incurable blood disorders

The Myeloproliferative Disorders Foundation has awarded $750,000 to establish the MPD Research Alliance, a collaboration of the University of Illinois at Chicago, Harvard Medical School and Mayo Clinic to accelerate drug development for incurable, progressive bone marrow disorders.

11 Apr 2006

Discovery of a new mechanism for the neurodegenerative effects of amphetamines

University of Toronto study finds amphetamines are converted in the brain into free radicals whose effects manifest and linger long after the amphetamine has left the body.

7 Apr 2006

Staggering costs of sleep disorders and sleep deprivation on the nation

According to a new report by the Institute of Medicine ( IOM), 50 to 70 million Americans suffer from a disorder of sleep and wakefulness, which adversely affects daily functioning, health and longevity.

5 Apr 2006

Prostate drug doxazosin blocks receptor in heart muscle, increasing risk of heart failure

Doxazosin, a drug commonly prescribed to help improve urinary flow in men with enlarged prostates, increases the likelihood of heart failure by blocking specific receptors in heart muscle cells, according to a study conducted at the San Francisco VA Medical Center.

4 Apr 2006

High levels of HDL cholesterol more important than low levels of LDL in protecting against heart attack

The researchers looked at the history of heart disease, age, sex, race, weight and other heart disease risk factors in almost 7,000 patients. The patients were predominately inner city residents and included a large number of African Americans, women, smokers and overweight people.

4 Apr 2006

Enzyme released by cardiac mast cells during heart attack contributes to arrhythmia

In times of cardiac crisis, mast cells in the heart secrete a powerful enzyme, renin, that indirectly triggers dangerous arrhythmias, according to a team of researchers at the Weill Medical College of Cornell University in New York City.

4 Apr 2006

Tobacco plants being used to produce human albumin

Human serum albumin (HSA) is the intravenous protein most commonly used in the world for therapeutic ends. It is employed to stabilise blood volume and to avoid risk of a heart attack, its administration in operating theatres being almost a daily occurrence.

27 Mar 2006

Medicinal properties in mahogany bark may hold colon cancer cure

U of So. Carolina cancer researcher Dr. Michael Wargovich is studying whether medicinal properties in the bark of mahogany trees may hold clues to understanding colon cancer.

27 Mar 2006

Study finds no clear benefit of omega 3 fats on health

A study published online by the BMJ doesn't find evidence of a clear benefit of omega 3 fats on health.

27 Mar 2006

Aspirin therapy offers equal heart-protection to both men and women

Previous studies have suggested that when it comes to using aspirin as a preventative for heart attacks, it is less effective in women than in men.

27 Mar 2006

Benefit of fish oils under question

In a turn up for the books, experts are now saying that contrary to the widely held belief that the omega 3 fats found in oily fish help prevent heart disease, this has not been proven.

26 Mar 2006

Low-dose aspirin lowers potential for clot-forming blood cells - in both men and women

In what is believed to be the first direct comparison of blood cell testing in both sexes of 81 milligrams of acetyl salicylic acid a day, Hopkins researchers found aspirin therapy prevents the clumping together of these clot-forming cells, called platelets.

23 Mar 2006

Angina is more dangerous for women than was previously thought

The collaborative study, led by UCL (University College London) and funded by the British Heart Foundation, found that angina in women is as common as it is in men, in contrast to heart attacks (myocardial infarction) which have a higher rate in men.

21 Mar 2006