After spinal-cord injury, severed nerve fibres face a thicket of obstacles as they try to regenerate. Researchers have used a bacterial enzyme to help prune these obstacles in rats.
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Olson, L. Clearing a path for nerve growth. Nature 416, 589–590 (2002). https://doi.org/10.1038/416589a
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DOI: https://doi.org/10.1038/416589a
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