Using a sophisticated, custom-designed 3D printer, regenerative medicine scientists at Wake Forest Baptist Medical Center have proved that it is feasible to print living tissue structures to replace injured or diseased tissue in patients. Reporting in Nature Biotechnology, the scientists said they printed ear, bone and muscle structures. When implanted in animals, the structures matured into functional tissue and developed a system of blood vessels. Most importantly, these early results indicate that the structures have the right size, strength and function for use in humans. “This novel tissue and organ printer is an important advance in our quest to make…

Research has found that students who turned off their devices or who messaged for less than 30 minutes after lights out performed significantly better in school than those who messaged for more than 30 minutes after lights out. The study, published in the Journal of Child Neurology, is the first of its kind to link night time instant messaging habits of American teenagers to sleep health and school performance. “We need to be aware that teenagers are using electronic devices excessively and have a unique physiology,” says study author Xue Ming, professor of neuroscience and neurology at Rutgers New Jersey…