Adult heart muscle has long been treated as tissue with very little capacity to replace cells lost during a heart attack. A new observation in living human samples complicates that picture: heart ...

Researchers at Sanford Burnham Prebys report that temporarily blocking the metabolic enzyme succinate dehydrogenase triggers ...

A hospital in Japan has carried out the world's first surgery using sheets of commercially available heart muscle stem cells after the groundbreaking therapy was approved this year, one of the ...

Myocardial fibrosis—scarred heart muscle—was linked with increased risk of irregular heart rhythms among male endurance athletes, according to a new study published in the Circulation: Cardiovascular ...

Add Yahoo as a preferred source to see more of our stories on Google. Pulled Muscle or Heart Attack? How to Tell the Difference in Chest Pain Chest pain can be disconcerting, but it's important to ...

Heart failure often develops after a heart attack because excessive collagen-based scar tissue forms during repair. While ...

The heart is the body's hardest-working muscle. Whether you're awake or asleep, or exercising or resting, your heart is always at work. It pumps blood through arteries to deliver oxygen to organs and ...

Humans can’t regenerate heart muscle damaged by disease, but scientists have long known that some animals, such as zebrafish, can. Researchers have now identified a set of genes in zebrafish that ...

Transferring mitochondria from a patient's healthy skeletal muscle to damaged, ischemic heart tissue has been shown to restore heart muscle, increase energy production, and improve ventricular ...

Cardiac troponin, a protein released into the blood when heart muscle is damaged, can be used as a quick measure of heart ...