By comparing two species of ants, Shelley Berger, PhD, the Daniel S. Och University Professor at the University of Pennsylvania, and colleagues Danny Reinberg, PhD, New York University, and Juergen Liebig, PhD, Arizona State University, have established an important new avenue of research for epigenetics -- the study of how the expression or suppression of particular genes affects an organism's characteristics, development, and even behavior.
Health & Medicine
Despite the fact that an estimated 25 million patients per year in the U.S. undergo surgeries using general anesthesia, scientists have only been able to hypothesize exactly how anesthetics interact with the central nervous system. They previously thought that the processes of “going under” and waking up from anesthesia affected the brain in the same way.
Male infertility is a common medical problem, affecting millions of men in the United States annually. Its causes include an inability to make productive sperm. Now, using yeast as a model organism, researchers at the University of Pennsylvania School of Medicine are beginning to identify the molecular signals that could in part underlie that problem.
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John Trojanowski, Virginia Lee and Aaron Gitler of the School of Medicine and Nancy Bonini of the School of Arts and Sciences are featured for their research on a Lou Gehrig’s disease gene.
School of Medicine researchers are cited for a breakthrough melanoma treatment.
Jonathan Moreno of the School of Medicine and the School of Arts and Sciences comments on new U.S. stem-cell research legislation.
PHILADELPHIA –- An international study led by biologists and neuroscientists from the University of Pennsylvania has identified a new genetic risk factor for amyotrophic lateral sclerosis, commonly known as ALS or Lou Gehrig’s disease.
PHILADELPHIA –- A White House report analyzing the impact of the American Recovery and Reinvestment Act on innovation, science and technology has drawn praise from United for Medical Research.