The leadership team for UT Southwestern's new North Texas Alzheimer's Disease Research Center includes principal investigator Dr. Ihab Hajjar (left), O'Donnell Brain Institute director Dr. William Dauer, and neurology chair Dr. Elan Louis. Their work will push the frontier of dementia research, as well as support community outreach and training for caregivers. [Photos: UT Southwestern Medical Center]
UNT and Stanford researchers say they've overcome a major barrier to artificial organ size: until now, organoids without blood vessels couldn't grow larger than about 3 millimeters—roughly the size of the sesame seeds picture above—before dying from lack of oxygen and nutrients. Seeds shown are not to scale. [Image: Pinchai Puntong/istockphoto]