Using cutting-edge technologies, researchers at Duke-NUS Medical School, Singapore, have developed the first genome-wide dataset on protein translation during fibroblast activation, revealing a network of RNA-binding proteins (RBPs) that play a key role in the formation of disease-causing fibrous tissue in the heart. Their findings, published in the journal Circulation, could help in the search
Smoking e-cigarettes, also called vaping, has been marketed as a safe alternative to tobacco cigarettes and is rising in popularity among non-smoking adolescents. However, a single e-cigarette can be harmful to the body’s blood vessels — even when the vapor is entirely nicotine-free — according to a new study by researchers in the Perelman School
Canadian researchers have discovered that covert — or ‘silent’ — strokes are common in seniors after they have elective, non-cardiac surgery and double their risk of cognitive decline one year later. While an overt stroke causes obvious symptoms, such as weakness in one arm or speech problems that last more than a day, a covert
Stem cell stimulation shows promise as a potential noninvasive stroke treatment, according to research in mice published in JNeurosci. If extended to humans, this technique could greatly improve patients’ quality of life. Ling Wei, Shang Ping Yu, and colleagues at Emory University injected neural stem cells into the brains of mice after a stroke and
People with undetected glucose disorders run a higher risk of both myocardial infarction and periodontitis, according to a study published in the journal Diabetes Care by researchers at Karolinska Institutet in Sweden. The results demonstrate the need of greater collaboration between dentistry and healthcare, say the researchers, and possibly of screening for diabetes at dental
Researchers at the Fralin Biomedical Research Institute at Virginia Tech Carilion have revealed how a genetic message to produce healthy heart tissue is altered in the body during stress and aging to contribute to sudden cardiac death. The discovery published in today’s (Tuesday, May 28) Cell Reports centers on communication between heart cells and allows
Two proteins that bind to stress hormones work together to maintain a healthy heart in mice, according to scientists at the National Institutes of Health and their collaborators. These proteins, stress hormone receptors known as the glucocorticoid receptor (GR) and mineralocorticoid receptor (MR), act in concert to help support heart health. When the signaling between
About six million people come into an emergency department every year with chest pain, but not all of them are having a heart attack — and many are not even at risk or are at very low risk for having one. Now, a new research study presented at the American College Cardiology Scientific Sessions from
A personal survey of patients with atrial fibrillation (AF), one of the most important causes of irregular heartbeats, has found that the majority of triggers for the condition are easily modifiable lifestyle choices, including alcohol, caffeine, exercise and lack of sleep. The findings, identified by researchers at UC San Francisco in collaboration with patients and
A research team designed a study to investigate the role depression symptoms play in an increased risk of death over time. The team also examined the role heart disease and stroke play in the link between depression symptoms and increased risk of death. As we age, we become more likely to experience symptoms of depression.
People who sleep less than six hours a night may be at increased risk of cardiovascular disease compared with those who sleep between seven and eight hours, suggests a new study published in the Journal of the American College of Cardiology. Poor quality sleep increases the risk of atherosclerosis — plaque buildup in the arteries
Some patients with coronary artery disease have inadequate blood flow to the heart muscle during periods of mental/emotional stress. This condition — called “mental stress-induced myocardial ischemia” (MSIMI) — is related to the severity of plaque buildup in the coronary arteries in men but not women, reports a study in Psychosomatic Medicine: Journal of Biobehavioral
An unexpected finding that links a structural heart protein to gene regulation following heart stress suggests potential new avenues for developing heart failure therapies. The work led by University of Iowa heart researcher Long-Sheng Song, MD, focuses on a protein called junctophilin-2 (JP2). Previous work from Song’s lab has shown that JP2 is a structural
From the DNA of nearly 300,000 veterans, scientists have singled out a handful of genetic mutations that not only govern levels of cholesterol, but may also inform the development and use of drugs for cardiovascular disease and diabetes, according to researchers at the Stanford University School of Medicine and the Palo Alto Veteran Affairs Health
Exercise and physical activity are of vast global importance to prevent and control the increasing problem of heart disease and stroke, according to a review paper published today in the Journal of the American College of Cardiology. This paper is part of an eight-part health promotion series where each paper will focus on a different
A clinical trial of more than 1,000 patients with implantable cardioverter defibrillators (ICDs) found that the drug ranolazine (commonly used to treat chest pain; brand name Ranexa®) was safe but didn’t significantly decrease the likelihood of the first occurrence of ventricular tachycardia, ventricular fibrillation or death in this high-risk population. The study was published recently
While pigs still cannot fly, researchers have discovered that the hearts of newborn piglets do have one remarkable ability. They can almost completely heal themselves after experimental heart attacks. This regenerative capacity is short-lived — disappearing by day three after birth, say teams of researchers at the University of Alabama at Birmingham and at several
New knowledge about biological processes related to the heart’s electrical activity has been gained through a major genome science study. The research had the largest sample size ever of a project of this type. The molecular mechanisms explored in this study offer insights into cardiac electrical diseases and could suggest avenues of drug research for
Harvard University researchers have bioengineered a three-dimensional model of a human left heart ventricle that could be used to study diseases, test drugs and develop patient-specific treatments for heart conditions such as arrhythmia. The tissue is engineered with a nanofiber scaffold seeded with human heart cells. The scaffold acts like a 3D template, guiding the
Researchers have developed a 3D map of the gene interactions that play a key role in cardiovascular disease, a study in eLife reports. The map will help researchers identify the most important genes to focus on for the development of new treatments for heart attacks, heart failure and heart rhythm disorders. More than 500 genetic
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