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  • Title: Proteins of fast axonal transport in regenerating rat sciatic sensory axons: a conditioning lesion does not amplify the characteristic response to axotomy.
    Author: Redshaw JD, Bisby MA.
    Journal: Exp Neurol; 1987 Nov; 98(2):212-21. PubMed ID: 3666074.
    Abstract:
    The regeneration rate of axons following injury can be influenced by the past history of the neuron: if an axon received a "conditioning" lesion its regeneration rate from a subsequent "test" lesion is increased. Because regeneration is associated with the increased synthesis and fast axonal transport of growth-associated proteins of unknown functions, we investigated whether the increased regeneration rate (to 81%) seen in conditioned rat sciatic sensory axons following a test lesion was associated with an amplification of the increase in growth-associated protein expression. The test lesion did not produce any amplification of the increase in growth-associated protein expression resulting from the preceding conditioning lesion. We conclude that this aspect of the cell body reaction to axotomy is not involved in the conditioning lesion effect on regeneration rate, and, as a corollary, it appears that fast-transported proteins whose expression alters after axotomy are not involved in the regulation of the regeneration rate.
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