Perelman School of Medicine

Workhorse molecules called heat-shock proteins contribute to refolding proteins that were once misfolded and clumped, causing such disorders as Parkinson's disease, amyotrophic lateral sclerosis, and Alzheimer's disease. James Shorter, PhD, an associate professor of Biochemistry and Biophysics, at the Perelman School of Medicine at the University of Pennsylvania, has been developing ways to "reprogram" one such protein – a yeast protein called Hsp104 -- to improve its therapeutic properties.

Twitter has broken news stories, launched and ended careers, started social movements and toppled governments, all by being an easy, direct and immediate way for people to share what’s on their minds.

The increase in Medicaid reimbursement for primary care providers, a key provision of the Affordable Care Act (ACA), was associated with a 7.7 percentage points increase in new patient appointment availability without longer wait times, according to results of a new 10-state study — co-authored by researchers at the University of Pennsylvania and the Urban Institute, and funded by the Robert Wood Johnson Foundation — published online-first by the New England Journal of Medicine.

Penn Medicine researchers, in a continuation of their groundbreaking work to better understand how anesthesia works in the body, have found the first new class of novel anesthetics since the 1970s. Their findings, published in February issue of Anesthesiology, detail the processes through which the group uncovered these compounds.

As the United States population has doubled since 1955, the number of inpatient psychiatric beds in the United States has been cut by nearly 95 percent to just 45,000, a wholly inadequate equation when considering that there are currently 10 million U.S. residents with serious mental illness.

When retrievable inferior vena cava (IVC) filters were approved for use in the United States in 2003 to prevent pulmonary embolism among patients unable to receive the standard blood thinner treatment, many experts anticipated most of them would be removed when no longer needed and IVC filter complications would decrease.

Here’s another potential reason to live up in the mountains. Lung cancer rates in both smokers and non-smokers are lower in higher-elevation counties in the western part of the United States, suggesting that oxygen may promote the incidence of lung cancer, according to a new study co-authored by a student at the Perelman School of Medicine at the University of Pennsylvania.

Nearly 70 percent of smokers who try to quit relapse within one week – daunting odds for people trying to kick the habit. Researchers have long theorized that some individuals may be genetically programmed to have an easier time than others, but with few clues about why, experts have been unable to guide smokers looking to quit toward a strategy – the nicotine patch versus prescription pills, for instance – with the best chance of success.

Transcatheter aortic valve replacement, or TAVR, has been called one of the biggest advances in cardiac surgery in recent years. The procedure delivers a new, collapsible aortic valve through a catheter to the valve site within the heart - a repair that otherwise requires open heart surgery.