It’s one of life’s hard truths: Once tooth enamel is gone, you can’t get it back. And while tooth tech has come a long way since the days of wooden dentures, there’s no regrowing lost teeth. But that may not be the case forever. In a new study published Aug. 14 in Development Cell, a research team led by scientists from the University of Washington School of Dentistry described how it used human stem cells to grow organoids, or 3D tissue cultures, that produce working enamel-producing...

Like roughly a quarter of people in the U.S., Cincinnati Zoo & Botanical Garden Director of Animal Research Bill Swanson, DVM, Ph.D., owns cats—or, as he puts it, “co-exists” with them. “You don’t really own cats,” Swanson told Fierce Biotech in an interview. “They live here with me.” The cats co-existing with Swanson aren’t just any cats: They’re among the first to receive a gene therapy that prevents pregnancy in felines. Swanson adopted the furry research subjects six years ago after they...