The brain cells of dead pigs were partially restored hours after their deaths. The system employed restored brain functions from damage due to anoxia in general and inadequate blood supply in particular. This suggests that neural cell death is not inevitable after prolonged oxygen deprivation.

See the source article by following the link below:
The brain cells of dead pigs were partially restored hours after their deaths. The system employed restored brain functions from damage due to anoxia in general and inadequate blood supply in particular. This suggests that neural cell death is not inevitable after prolonged oxygen deprivation.