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Media Contact:Katherine Unger Baillie | | 215-898-9194February 12, 2014

Penn Geophysicist Teams With Mathematicians to Describe How River Rocks Round

A new study by the University of Pennsylvania’s Douglas Jerolmack, working with mathematicians at Budapest University of Technology and Economics, has found that rocks traveling down a riverbed follow a distinct pattern, first becoming rounder, and then smaller.

For centuries, geologists have recognized that the rocks that line riverbeds tend to be smaller and rounder further downstream. But these experts have not agreed on the reason these patterns exist. Abrasion causes rocks to grind down and become rounder as they are transported down the river.

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Media Contact:Katie Delach | | 215-349-5964February 5, 2014

Penn Medicine Study Reveals Genetics Impact Risk of Early Menopause Among Some Female Smokers

New research is lighting up yet another reason for women to quit smoking.

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Media Contact:Lee-Ann Donegan | | 215-349-5660February 5, 2014

Some Patients Receive Unnecessary Prioritization for Liver Transplantation, Penn Medicine Study Finds

Patients waiting for liver transplants who develop hepatopulmonary syndrome (HPS), a lung disorder associated with end-stage liver disease, are eligible to move up on the wait list.

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Media Contact:Evan Lerner | | 215-573-6604February 6, 2014

Penn Researchers ‘Design for Failure’ With Model Material

Researchers at the University of Pennsylvania have devised a method to study stress at the macro and micro scales at the same time, using a model system in which microscopic particles stand in for molecules.

When deciding what materials to use in building something, determining how those materials respond to stress and strain is often the first task. A material’s macroscopic, or bulk, properties in this area — whether it can spring back into shape, for example — is generally the product of what is happening on a microscopic scale.

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Media Contact:Karen Kreeger | | 215-349-5658February 4, 2014

New Sleep Gene, Redeye, Discovered in Fruitflies Promotes the Need to Sleep, According to Penn Study

All creatures great and small, including fruitflies, need sleep. Researchers have surmised that sleep – in any species -- is necessary for repairing proteins, consolidating memories, and removing wastes from cells. But, really, sleep is still a great mystery.

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Media Contact:Katie Delach | | 215-349-5964January 30, 2014

Penn Medicine Study Finds More than A Third of Women Have Hot Flashes 10 Years after Menopause

A team of researchers from the Perelman School of Medicine at the University of Pennsylvania has found that moderate to severe hot flashes continue, on average, for nearly 5 years after menopause, and more than a third of women experience moderate/severe hot flashes for 10 years or more after menopause.

Baldness Cure May Have Inched a Bit Closer

January 29, 2014

Xiaowei Xu of the Perelman School of Medicine says, “This is the first time anyone has made scalable amounts of epithelial stem cells that are capable of generating the epithelial component of hair follicles.”

Article Source: HealthDay News
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Media Contact:Karen Kreeger | | 215-349-5658January 28, 2014

Penn Study Converts Adult Human Cells to Hair-Follicle-Generating Stem Cells

If the content of many a situation comedy, not to mention late-night TV advertisements, is to be believed, there’s an epidemic of balding men, and an intense desire to fix their follicular deficiencies.

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Media Contact:Jeanne Leong | | 215-573-8151January 24, 2014

Frederick Ding: Penn Ambassador, Leader and Mentor

Frederick Ding’s interest in making an impact by improving the lives of others begins with his work on campus assisting fellow students at the University of Pennsylvania.

Re-engineered Yeast Protein Holds Promise for Fighting Parkinson’s, ALS

January 22, 2014

James Shorter and postdoctoral fellow Meredith Jackrel of the Perelman School of Medicine are featured for their research on “reprogrammed” yeast protein that could lead to new brain disease therapies.