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‘Superhuman vision’: Powerful 3D imaging technology paves way for next-generation eye-tracking

Eye tracking plays a critical role in the latest virtual and augmented reality headsets and is an important technology in the entertainment industry, scientific research, medical and behavioral sciences, automotive driving assistance and industrial engineering. Tracking the movements of the human eye with high accuracy, however, is a daunting challenge.

Researchers at the University of Arizona Wyant College of Optical Sciences have now demonstrated an innovative approach that could revolutionize eye-tracking applications.

Their study, published in Nature Communications, finds that integrating a powerful 3D imaging technique known as deflectometry with advanced computation has the potential to significantly improve state-of-the-art eye tracking technology.

Nebulized vasopressin penetrates CSF and improves social cognition without inducing aggression in a rhesus monkey model of autism

I very much enjoyed reading this nicely done preclinical study on using nebulized vasopressin to improve social cognition in low-sociality rhesus monkeys. Reading about their study design in particular was highly informative/educational! #preclinical #medicine #biomedicine


Low cerebrospinal (CSF) arginine vasopressin (AVP) concentration is a biomarker of social impairment in low-social monkeys and children with autism, suggesting that AVP administration may improve primate social functioning. However, AVP administration also increases aggression, at least in “neurotypical” animals with intact AVP signaling. Here, we tested the effects of a voluntary drug administration method in low-social male rhesus monkeys with high autistic-like trait burden. Monkeys received nebulized AVP or placebo, using a within-subjects design. Study 1 (N = 8) investigated the effects of AVP administration on social cognition in two tests comparing responses to social versus nonsocial stimuli. Test 1: Placebo-administered monkeys lacked face recognition memory, whereas face recognition memory was “rescued” following AVP administration.

Non-ICANS neurological complications after CAR T-cell therapies: recommendations from the EBMT Practice Harmonisation and Guidelines Committee

Neurological complications are an important concern in patients undergoing chimeric antigen receptor (CAR) T-cell therapy. Consensus guidelines inform the management of immune effector cell-associated neurotoxicity syndrome (ICANS). However, these guidelines are based on the early clinical experience with CD19 targeting CAR T cells in B-cell malignancies. In contrast, there are so far no published best practice recommendations on the current management of other non-classical neurological complications, which frequently develop after CAR T-cell infusion and cause clinically significant neurotoxicity.

Plant cells gain immune capabilities when it’s time to fight disease

LA JOLLA—Human bodies defend themselves using a diverse population of immune cells that circulate from one organ to another, responding to everything from cuts to colds to cancer. But plants don’t have this luxury. Because plant cells are immobile, each individual cell is forced to manage its own immunity in addition to its many other responsibilities, like turning sunlight into energy or using that energy to grow. How these multitasking cells accomplish it all—detecting threats, communicating those threats, and responding effectively—has remained unclear.

Supercomputers Help Unlock Secrets of DNA Repair

Researchers harness the power of the world’s most advanced supercomputers to simulate the inner workings of cellular machinery that repairs DNA and helps prevent life-threatening diseases. Sunburn and premature aging are well-known consequences of exposure to ultraviolet (UV) radiation, tobacco s

Illuminating single atoms for sustainable propylene production

More than 150 million metric tons of propylene are produced annually, making it one of the most widespread chemicals used in the chemical industry.

Propylene is the basis for polypropylene, a polymer used in everything from medical devices to packaging to household goods. But most is produced through steam cracking, a high-energy process that uses heat to break down crude oil into smaller hydrocarbons.

Now, Northwestern University chemists have found a way to create propylene using light. Their findings show that a nanoengineered photoactive catalyst can make propylene directly through a process called nonoxidative propane dehydrogenation (PDH).

Healing chronic wounds three times faster with electricity

Researchers from both Chalmers University of Technology, Sweden, and the University of Freiburg, Germany, have been collaborating on a project to help those who suffer from chronic wounds heal faster than ever before and therefore negate the possibility of amputation in severe cases.

Commonly a small wound does not lead to any serious complications; however, for those with diabetes, spinal injuries or poor blood circulation, a small wound means a greater risk of infection and chronic wounds – which in the long run can lead to much more serious consequences such as amputation.

Maria Asplund, Associate Professor of Bioelectronics at Chalmers University of Technology and head of research on the project explained that “Chronic wounds are a huge societal problem that we don’t hear a lot about. Our discovery of a method that may heal wounds up to three times faster can be a game changer for diabetic and elderly people, among others, who often suffer greatly from wounds that won’t heal.”

Disrupted BBB glycome in aging

In a study in aging mice, the first author has uncovered striking age-related changes in the sugary coating – called the glycocalyx – on cells that form the blood-brain barrier, a structure that protects the brain by filtering out harmful substances while allowing in essential nutrients.

“The glycocalyx is like a forest,” the author explains. “In young, healthy brains, this forest is lush and thriving. But in older brains, it becomes sparse, patchy, and degraded.”

These age-related changes to the glycocalyx weaken the blood-brain barrier, the author found. As the barrier becomes leaky with age, harmful molecules can infiltrate the brain, potentially fueling inflammation, cognitive decline, and neurodegenerative diseases.

The results were striking: In older mice, bottlebrush-shaped, sugar-coated proteins called mucins, a key component of the glycocalyx, were significantly reduced. This thinning of the glycocalyx correlated with increased permeability of the blood-brain barrier and heightened neuroinflammation.

When the team reintroduced those critical mucins in aged mice, restoring a more “youthful” glycocalyx, they improved the integrity of the blood-brain barrier, reduced neuroinflammation, and measurably improved cognitive function.

“Modulating glycans has a major effect on the brain – both negatively in aging, when these sugars are lost, and positively, when they are restored,” the lead says. “This opens an entirely new avenue for treating brain aging and related diseases.”