Post #6287

⚠️Scientists just revived activity in frozen mouse brains Researchers have achieved something long thought impossible: restoring neural activity in brain tissue after deep freezing. What happened: • Scientists froze slices of mouse brain using vitrification, a technique that prevents ice crystals from damaging cells. • The tissue was stored in liquid nitrogen at 196°C for up to a week. • After thawing, neurons were still alive and began firing signals again. What they found: • Brain cells kept their structure and connections intact. • Neurons showed metabolic activity and functioning mitochondria. • Electrical recordings confirmed the tissue could send signals and form synaptic connections again. This is the first time researchers have restored functional neural activity after deep freezing. It hints that long-term preservation of brain tissue and potentially organs might be possible. But there are limits: • Only thin brain slices were tested, not whole brains. • The revived activity lasted only a few hours. • Scaling this to humans remains a massive challenge. Source. @aipost🏴