Frozen mouse brains revived from 'cryosleep' in a scientific first

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Frozen mouse brains revived from 'cryosleep' in a scientific first
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In a breakthrough that sounds ripped straight from a Ridley Scott flick, researchers in Germany have managed to freeze brain tissue to ultra-cold temperatures andThe feat, detailed in a new study published in the journal “Proceedings of the National Academy of Science s,” suggests that one day scientists may be able to place brain tissue — or even entire organs — into a deep freeze and revive them later without wrecking the delicate circuitry that makes them tick, originally reported on byWhen biological tissue freezes the old-fashioned way, water inside cells crystallizes into jagged ice shards that shred membranes and sever the microscopic connections between neurons.

Inside the beloved NYC Irish nabe that's had its cover blown on social media — but locals say the more the merrierDoctor reveals the frightening words patients hear in the moments after their body dies — while the brain hangs on To dodge that icy death spiral, neurologists at the University of Erlangen–Nuremberg turned to a technique known as vitrification — a rapid-cooling method that transforms liquid into a glass-like state before ice crystals can form. Instead of freezing into rigid ice, the tissue becomes something closer to molecular glass. Chemical activity essentially pauses in place. For their test run, the researchers flash-froze thin slices of mouse brain tissue containing the hippocampus — the region crucial for learning and memory — plunging them into liquid nitrogen at a bone-chilling −196°C.The samples then sat suspended in this glassy deep freeze, anywhere from 10 minutes to a week.Scientists carefully reheated the tissue at lightning speed while flushing out the chemical “antifreeze” solution used during freezing — a delicate balancing act designed to prevent the cells from swelling, cracking or bursting. When the revived brain slices were put under the microscope, the team saw something remarkable: the microscopic structures linking neurons — synapses — appeared intact. Astronomers witness ‘dramatic’ collision of two planets — and they think it’s a replay of how our moon was createdIn fact, the brain circuits still showed long-term potentiation — a key biological process that strengthens synaptic connections and underpins learning and memory.The team also experimented with preserving an entire mouse brain — a far trickier challenge because of the brain’s protective blood–brain barrier, which blocks large molecules from entering the tissue. By repeatedly cycling cryoprotective chemicals through the brain’s blood vessels, the researchers were able to distribute the protective compounds more evenly and prevent catastrophic swelling or dehydration.“This kind of progress is what gradually turns science fiction into scientific possibility,” Mrityunjay Kothari, a mechanical engineer who studies cryobiology, But he cautioned that practical applications remain a long way off, noting that preserving large organs — let alone whole bodies — is still “far beyond the capabilities of the study.”Trump briefed that Iran’s new supreme leader is probably gay — and president has priceless reactionTrump stuns Johnson by letting slip GOP rep's ailment: 'That wasn't public' Shocking Oscars aftermath pic exposes climate hypocrisy of celebs: 'Where’s all that "protect the planet" energy now?'Lewis Hamilton gushes over girlfriend Kim Kardashian’s 2026 Vanity Fair Oscar Party lookStream It Or Skip It: 'The Madison' On Paramount+, Where Michelle Pfeiffer Is A New York Woman Who Goes To Montana To Deal With Her Grief After A Tragedy

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