Human brain implants thrive inside mouse skulls and raise ethical questions
Image credit: Nevit Dilmen, NIH 3D Print Exchange, National Institutes of Health Miniature human brains continue to develop when hooked up to a blood supply in the mouse brain in a finding that opens up new avenues for learning how the brain forms and falls ill, while at the same time raising ethical questions. Last week, two teams reported success in transplanting primordial human brain tissue into mouse brains. The grafts survived thanks to nutrient…