Nerve growth factor-induced growth of sympathetic axons into the optic tract of mature mice is enhanced by an absence of p75NTR expression.


Postganglionic sympathetic axons display a remarkable ability for new collateral growth in response to local increases in nerve growth factor (NGF). Elevating NGF levels within the brain also induces the directional growth of sympathetic axons, but not within myelinated pathways of adult mammals. In this investigation, we provide in vivo evidence that… (More)


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