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Regeneration of adult dorsal root axons into transplants of fetal spinal cord and brain: A comparison of growth and synapse formation in appropriate and inappropriate targets

Cut dorsal root axons regenerate into transplants of embryonic spinal cord and form synapses that resemble those found in the dorsal horn of normal spinal cord. One aim of the present study was to determine whether these axons also regenerate into and establish synapses within transplants of embryonic brain. A second aim was to compare the patterns of growth in embryonic brain and spinal cord transplants.