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Gel turned human brain support cells into working neurons and improved memory in Alzheimer's mice

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https://www.livescience.com/health/neuroscience/scientists-invent-a-gel-that-creates-neurons-from-other-cells-which-could-help-treat-alzheimers

Scientists invent a gel that creates neurons from other cells, which could help treat Alzheimer's
LiveScienceScientists invent a gel that creates neurons from other cells, which could help treat Alzheimer's Scientists found a way to convert brain cells called astrocytes into neurons. In theory, this could replenish neurons lost in neurodegenerative conditions like Alzheimer's disease. www.livescience.com

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I'd want to know whether the new neurons actually contribute to the brain or just kinda chill there unconnected to anythng.

Getting the gel across the blood brain barrier may be the bigger breakthrough here. Plenty of promising treatments get blocked by that.

So Alzheimer’s has a mice problem?

Lmao