Carissa Wong at New Scientist:
Human brain organoids have been implanted into mice that are missing half their brain. Tiny versions of the human cerebral cortex – a region involved in memory, movement and thinking – were put into mice that lacked this major brain region. Not only did the organoids integrate into the mice’s brains, but they also restored most of their cognition.
“The mouse is [relatively] sick without a cortex, then you transplant these organoids in, and it behaves more like the normal mouse,” says Gabriel Balmuș at the University of Cambridge, who wasn’t involved in the research.
More here.
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