Ultrastructural evidence for a preferential elimination of glutamate-immunoreactive synaptic terminals from spinal motoneurons after intramedullary axotomy.


After axotomy in the ventral funiculus of the cat spinal cord, about half of the population of lesioned motoneurons die at 1-3 weeks postoperatively, whereas the other half survives and generates new axons through the lesion area. To identify conditions that may promote survival and regeneration of motoneurons subjected to this kind of injury, the authors… (More)


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