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Biology
Bigger brains are smarter, but not by much
Bigger brains are smarter, but not by much
Using a large dataset and controlling for a variety of factors, including sex, age, height, socioeconomic status, and genetic ancestry, Gideon Nave of the Wharton School and Philipp Koellinger of Vrije Universiteit Amsterdam found that people with larger brains rated higher on measures of intelligence, but only accounts for two percent of the variation in smarts.
Two from Penn named to new class of AAAS Fellows
Two from Penn named to new class of AAAS Fellows
Noted for their contributions to dental and biological sciences, respectively, Hyun (Michel) Koo of the School of Dental Medicine and Joshua Plotkin of the School of Arts and Sciences are part of the newest cohort of fellows of the American Association for the Advancement of Science.
Modeling the most common form of vision loss in older adults
Modeling the most common form of vision loss in older adults
Age-related macular degeneration is the leading cause of vision loss in people older than 50. Kathleen Boesze-Battaglia and colleagues have developed a model system that mimics many features of the human condition, giving scientists a platform to gain a deeper understanding of risk factors and possible treatments.
Keeping campus trees—all 6,800 of them—healthy and vibrant
Keeping campus trees—all 6,800 of them—healthy and vibrant
Caring for the trees on Penn’s campus—an official arboretum since last year—is no small undertaking. Staff from Facilities and Real Estate Services and the Morris Arboretum lead the way in ensuring that the University’s trees remain safe, vibrant, diverse, and beautiful.
Dry conditions may have helped a new type of plant gain a foothold on Earth
Dry conditions may have helped a new type of plant gain a foothold on Earth
Plants reap energy from the sun using two photosynthesis pathways, C3 and C4. A new study led by Haoran Zhou, Erol Akçay and Brent Helliker suggests that water availability drove the expansion of C4 species, which may help to explain how different plant lineages came to be distributed on the planet today.
This startup wants to revolutionize the future of biofabrication
This startup wants to revolutionize the future of biofabrication
Before the fall of 2012, Orkan Telhan and Karen Hogan didn’t even know each other. Fast forward six years, and the Penn duo has created budding startup Biorealize, with not one—but two—transformative products.
Widening the lens on language study
Widening the lens on language study
Penn Arts and Sciences faculty use language to unravel mysteries of culture, cognition, and communication.
How plants cope with stress
How plants cope with stress
With climate change comes drought, and with drought comes higher salt concentrations in the soil. Brian Gregory and graduate student Stephen Anderson have identified a mechanism by which plants respond to salt stress, a pathway that could be targeted to engineer more adaptable crops.
Future fertility: Giving hope to men who received childhood cancer treatment
Future fertility: Giving hope to men who received childhood cancer treatment
Researchers have discovered a way to grow human stem cells destined to become mature sperm in an effort to provide fertility options later in life to males who are diagnosed with cancer and undergo chemotherapy and radiation as children.
New scholars named to promote research into the influence of gender on health
New scholars named to promote research into the influence of gender on health
Melanie Kornides of the School of Nursing, Jennifer Lewey of the Perelman School of Medicine, and C. Alix Timko of Medicine and the Children’s Hospital of Philadelphia are pursuing research that examines the role of sex and gender on health, supported by the Building Interdisciplinary Research Careers in Women’s Health program.
In the News
Newsweek
Man does DNA test, not prepared for what comes back ‘unusually high’
César de la Fuente of the School of Engineering and Applied Science and Perelman School of Medicine says that Neanderthal DNA provides insights into human evolution, population dynamics, and genetic adaptations, including correlations with traits such as immunity and susceptibility to diseases.
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Nature
Bird flu virus has been spreading in U.S. cows for months, RNA reveals
Louise Moncla of the Veterinary School of Medicine says that the bird flu virus is clearly being transmitted to cows in some way.
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Good Housekeeping
When is the best time to take L-theanine—morning or night?
According to Colleen Tewksbury of the School of Nursing, research suggests that L-theanine may help support stress management, sleep, and potentially weight management.
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Stat
Is the flu shot market a slam dunk for mRNA vaccines? Experts aren’t so sure
Scott Hensley of the Perelman School of Medicine is working on a flu vaccine to provide protection against 20 subtypes of flu that may pose a pandemic threat in the future.
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NPR
Thanks, Neanderthals: How our ancient relatives could help find new antibiotics
A study by César de la Fuente of the Perelman School of Medicine and colleagues used AI to recreate molecules from ancient humans that could be potential candidates for antimicrobial treatments.
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NPR
Long COVID brain fog may originate in a surprising place, say scientists
A study by Christoph Thaiss and Maayan Levy of the Perelman School of Medicine and colleagues finds that long COVID’s neurological symptoms, like brain fog, memory loss, and fatigue, may stem from serotonin reduction.
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