Perelman School of Medicine at the University of Pennsylvania researchers have discovered a mechanism involving the neurotransmitter dopamine that switches fruit fly behavior from being active during the day (diurnal) to nocturnal. This change parallels a human disorder in which increased agitation occurs in the evening hours near sunset and may also be due to higher than normal dopamine levels in the brain. Sundown syndrome occurs in older people with dementia or cognitive impairment.
Media Contact:Kat Stein | email@example.com | 215-898-9642May 16, 2012
Black Cardiac Victims Less Apt to Receive CPR and Shocks to the Heart from Bystanders, Penn Study Shows
Black cardiac arrest victims who are stricken outside hospitals are less likely to receive bystander CPR and defibrillation on the scene than white patients, according to research that will be presented by a research team from the Perelman School of Medicine at the University of Pennsylvania today at the annual meeting of Society for Academic Emergency Medicine.
A new electronic medical record tool that tallies patients' previous radiation exposure from CT scans helps reduce potentially unnecessary use of the tests among emergency room patients with abdominal pain, according to a study from researchers at the Perelman School of Medicine at the University of Pennsylvania that will be presented today at the annual meeting of the Society for Academic Emergency Medicine.
Most people take gravity for granted. But for University of Pennsylvania astrophysicist Bhuvnesh Jain, the nature of gravity is the question of a lifetime. As scientists have been able to see farther and deeper into the universe, the laws that govern its expansion have been revealed to be under the influence of an unexplained force.
PHILADELPHIA — When the Deepwater Horizon drilling rig exploded April 20, 2010, residents feared that their Gulf of Mexico shores would be inundated with oil. And while many wetland habitats and wildlife were oiled during the three-month leak, the environmental damage to coastal Louisiana was less than many expected, in part because much of the crude never made it to the coast.
All cells have the ability to recycle unwanted or damaged proteins and reuse the building blocks as food. But cancer cells have ramped up the system, called autophagy, and rely on it to escape damage in the face of chemotherapy and other treatments.