Brain In a Box
Hippocampus Was Frozen to -130°C and Brought Back to Life
Its Synapses Started Working Again!
Researchers at Erlangen University Hospital have reported a striking advance in the preservation of brain tissue. Portions of a rodent's hippocampus were cooled to extremely low temperatures (around −130°C), stored, and later rewarmed in a way that preserved not only cellular structure but also measurable neural function.
The tissue was not merely structurally intact under the microscope, but showed signs that some of its biological machinery could still operate after thawing.What makes this result notable is not merely survival of cells, but the partial preservation of network-level activity — including synaptic signaling and plasticity mechanisms associated with learning.
In most previous cryo-preservation attempts, even when individual neurons survived, the coordinated communication between them collapsed. Here, evidence suggests that at least portions of that communication system remained functional.While this is not “reviving a frozen brain” in…
