Not alive, but not dead: disembodied human brains used for drug testing
May 21, 2026

(Science) – By restoring some functions to intact brains from deceased donors, the startup Bexorg hopes to create a better drug development test bed for neurodegenerative diseases
NEW HAVEN, CONNECTICUT—Just a day ago, the brain was in a living person. Now, hours after its owner died, it sits on a cart draped in tubes that quiver as they pump liters of blood substitute and other fluids through the organ, supplying oxygen and removing waste. With most of its key functions intact but its electrical activity quenched by anesthesia, the brain hovers between life and death. As it metabolizes experimental drugs, sensors record its reactions, capturing hundreds of data points on its cells, proteins, and physiology. Then, after 24 hours in this state, it will be sliced into hundreds of pieces for more detailed study.
The brain is one of more than 700 that the 5-year-old biotech startup Bexorg has nurtured and studied using a set of proprietary brain-sustaining machines it calls BrainEx. (Read More)