The instructions for building all of the body’s proteins are contained in a person’s DNA, a string of chemicals that, if unwound and strung end to end, would form a sentence 3 billion letters long.
Penn Medicine: APOL1 Gene Speeds Kidney Disease Progression and Failure in Blacks, Regardless of Diabetes Status
A large study co-led by Penn Medicine published this week in the New England Journal of Medicine found that African Americans with the APOL1 gene variant experience faster progression of chronic kidney disease (CKD) and have a significantly increased risk of kidney failure, regardless of their diabetes status.
Penn Medicine Researchers Identify First Genetic Mutations Linked to Persistent Atopic Dermatitis in African-American Children
Two specific genetic variations in people of African descent are responsible for persistent atopic dermatitis (AD), an itchy, inflammatory form of the skin disorder eczema.
Penn Medicine: Study Shows Moms May Pass Effects of Stress to Offspring Via Vaginal Bacteria and Placenta
Pregnant women may transmit the damaging effects of stress to their unborn child by way of the bacteria in their vagina and through the placenta, suggest new findings from two animal studies presented by researchers at the University of Pennsylvania at Neuroscience 2013, the annual meeting of the Society for Neuroscience.
A father’s cocaine use may make his sons less sensitive to the drug and thereby more likely to resist addictive behaviors, suggests new findings from an animal study presented by Penn Medicine researchers at Neuroscience 2013, the annual meeting of the Society for Neuroscience.
For solar panels, wringing every drop of energy from as many photons as possible is imperative. This goal has sent chemistry, materials science and electronic engineering researchers on a quest to boost the energy-absorption efficiency of photovoltaic devices, but existing techniques are now running up against limits set by the laws of physics.
An interdisciplinary team of University of Pennsylvania researchers has already developed a technique for controlling liquid crystals by means of physical templates and elastic energy, rather than the electromagnetic fields that manipulate them in televisions and computer monitors. They envision using this technique to direct the assembly of other materials, such as nanoparticles.
The first study to look extensively at sexual function in women who underwent bariatric surgery found that significant improvements in overall sexual function, most reproductive hormones and in psychological status were maintained over two years following surgery.
It’s well established that humans maintain a symbiotic relationship with the trillions of beneficial microbes that colonize their bodies. These organisms, collectively called the microbiota, help digest food, maintain the immune system, fend off pathogens, and more.
Some people are deeply religious and others not at all. Evolutionary psychologists are interested in determining the functions of religiosity in social life that lead to this diversity.