Scientists capture how bacteria build their protective antibiotic-resistant barriers - News-Medical

Neanderthals may have used a sticky substance made from tree bark not only to construct tools but also to treat wounds and fight bacterial infections. Scientists have discovered that birch tar, a material commonly associated with prehistoric toolmaking, has antibacterial properties that could have made it useful as an ancient form of medicine. The findings come from a study conducted by researchers at the University of Cologne, the University of Oxford, the University of Liège, and Cape Breton University in Canada. By recreating techniques believed to have been used by Neanderthals, the team produced birch tar and tested its ability to inhibit harmful bacteria.

She’s bubblegum pink with a permanent little smile. She sports a pretty flower on her head sports a black tattoo on one of her eight arms. But don’t let this dumbo octopus’ adorable exterior fool you. Miss Abyss is here on serious business. “Miss Abyss is a dumbo octopus from the deep-sea, and she is on a journey all across the country looking for allies to support her to help defend the deep-sea,” Angelo Villagomez, a research fellow at the Center for American Progress (CAP), tells Popular Science.

Researchers co-led by Cedars-Sinai Health Sciences University have identified an enzyme that may help protect the liver from the damage that can occur as the most common form of liver disease becomes more severe. The findings, from a preclinical study published in Nature Metabolism, could eventually support new strategies for preventing serious liver injury and progression toward liver failure. An estimated 100 million people in the U. S. have metabolic dysfunction-associated steatotic liver disease (MASLD), formerly called nonalcoholic fatty liver disease, according to the American Liver Foundation. Roughly 20% to 25% of those affected go on to develop metabolic dysfunction-associated steatohepatitis (MASH), a more serious form of the condition in which excess liver fat is accompanied by inflammation, cell injury and scarring.