Perelman School of Medicine

In mammals, including humans, the cells that contract the heart muscle and enable it to beat do not regenerate after injury. After a heart attack, there is a dramatic loss of these heart muscle cells and those that survive cannot effectively replicate.

Four members of the University of Pennsylvania faculty have been named Fellows of the American Association for the Advancement of Science. Election as an AAAS Fellow is an honor bestowed upon members of AAAS, the world’s largest general scientific society, by their peers.

Those who continue to binge eat while trying to lose weight drop about half as much weight as those who don’t binge eat, or those who do and then subsequently stop.

Those who continue to binge eat while trying to lose weight drop about half as much as those who don’t or those who do and subsequently stop.

What can Twitter reveal about people with attention-deficit/hyperactivity disorder, or ADHD?

The first view of the physical mechanism of how a blood clot contracts at the level of individual platelets is giving researchers from the Perelman School of Medicine at the University of Pennsylvania a new look at a natural process that is part of blood clotting. A team led by John W.

Penn Medicine will conduct the Northeast’s first clinical trial of uterine transplants, to provide women with Uterine Factor Infertility (UFI) - an irreversible form of female infertility that affects as many as 5 percent of women worldwide and 50,000 women in the United States - with a new path to parenthood.

The low efficacy of last year’s influenza vaccine can be attributed to a mutation in the H3N2 strain of the virus, a new study reports.

Congenital heart valve defects appear in 2 percent of all live births, making them the most common type of birth defect. While some of these defects have been linked to specific genetic mutations, the majority have no clearly definable genetic cause, suggesting that epigenetic factors – changes in gene expression versus an alteration in the genetic code -- play an important role.

James C.