A study in this issue reports that, in mice, embryonic cortical neurons transplanted into injured adult motor cortex can rapidly and accurately reinnervate distant projections. These remarkable results urgently need to be replicated.
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Tuszynski, M. Rebuilding the brain: resurgence of fetal grafting. Nat Neurosci 10, 1229–1230 (2007). https://doi.org/10.1038/nn1007-1229
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DOI: https://doi.org/10.1038/nn1007-1229
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