For Pygmies, Size May Not Matter

April 26, 2012

Sarah Tishkoff of the School of Arts and Sciences and Perelman School of Medicine discuss her research on Pygmies’ DNA.

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Media Contact:Katherine Unger Baillie | | 215-898-9194April 26, 2012

Penn Geneticists Identify Genes Linked to Western African Pygmies’ Small Stature

PHILADELPHIA — If Pygmies are known for one trait, it is their short stature: Pygmy men stand just 4’11” on average.  But the reason why these groups are so short and neighboring groups are not remains unclear.  Scientists have proposed various theories based on natural selection, including that Pygmies’ reduced size lowered nutritional requirements, helped them better handle hot climates, or allowed them to reach sexual maturity at an earlier age.

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Media Contact:Karen Kreeger | | 215-349-5658April 24, 2012

Penn Research: Gatekeeper of Brain Steroid Signals Boosts Emotional Resilience to Stress

A cellular protein called HDAC6, newly characterized as a gatekeeper of steroid biology in the brain, may provide a novel target for treating and preventing stress-linked disorders, such as depression and post-traumatic stress disorder (PTSD), according to research from the Perelman School of Medicine at the University of Pennsylvania.

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Media Contact:Evan Lerner | | 215-573-6604April 24, 2012

Penn Researchers Create First Custom Designed Protein Crystal

PHILADELPHIA -- Protein design is technique that is increasingly valuable to a variety of fields, from biochemistry to therapeutics to materials engineering. University of Pennsylvania chemists have taken this kind of design a step further; using computational methods, they have created the first custom-designed protein crystal.

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Student Loan Rate Hike


Dr. Laura Perna
Professor, Graduate School of Education
University of Pennsylvania