Science
UCLA Study of 1,500 Adults Links Gut Bacteria to Faster Brain Aging
Brains that scan older than their owners' ages were tied to worse memory, more depression symptoms and a distinct gut-microbe signature, even in younger adults.
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UCLA
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PhysicsUCLA Light-Powered AI Spots Deepfakes With 97.8% Accuracy, Checking 15 Videos at Once
A hybrid digital-optical processor uses light instead of heavy computing to score videos, and it held up at 94.8% on Google Veo 3 fakes it had barely seen.
ScienceUCLA Scientists Took T. Rex's Temperature From Two Teeth and Got 97°F, Almost Exactly Human
It's the first actual number for a tyrannosaur's body heat. The isotope 'thermometer' needed 90% less enamel than a decade ago, which is what finally persuaded the Natural History Museum of Los Angeles County to let them drill Thomas the T. rex.
ScienceUCLA Starved Brain Stem Cells of Glucose and They Started Building the Wrong Neurons Too Early
Two studies find that radial glia — the cells that construct most of the human cortex — take their instructions from how they burn sugar and from thalamic fibers physically touching them.
PhysicsUCLA Built a Mirror That Lies. Point Anything at It and the Reflection Comes Back as the Number 8.
Aydogan Ozcan's group used a structured diffractive surface — not software — to overwrite whatever an unknown object looks like with one predetermined image.
PhysicsUCLA Made Heat Travel in Straight Rays Through a Crystal at Room Temperature
Heat normally spreads in every direction at once. In boron arsenide, UCLA engineers watched it move in focused beams along the crystal's own axes — a result that could let chip designers route heat the way fiber optics route light.
PhysicsTwo Cryptographers Built a Coded Message That Physically Cannot Be Copied — Split It in Two and Both Halves Become Coin Flips
Prabhanjan Ananth and Amit Sahai encode a single bit across many quantum states. An eavesdropper who divides the intercepted data between accomplices leaves each of them guessing at 50/50, even after they get the key.
ScienceA Single Drug Dose Reversed Autism-Like Symptoms in Adult Mice Within Two Hours, UCLA Reports
Rapamycin quieted brain overactivity, reduced seizure risk and eased repetitive behavior in animals whose symptoms traced back to inflammation before birth — but the effect faded.
ScienceCreatine, the Gym Supplement, May Supercharge the Immune Cells That Fight Cancer, Study Finds
UCLA researchers report that the popular muscle-building compound energizes dendritic cells — the immune system's scouts — potentially making cancer immunotherapy work for far more patients.
ScienceWhy Aging Muscles Heal Slowly: Scientists Find the Molecular 'Brake' — and a Hidden Trade-Off
A UCLA team discovered that a protein called NDRG1 builds up in old muscle stem cells and slams the brakes on repair. Switching it off makes aged cells act young again — but at a cost to their long-term survival.