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Brain Res. 1980 May 12;189(2):343-54.

Reinnervation of the olfactory bulb after section of the olfactory nerve in monkey (Saimiri sciureus).


Section of the fila olfactoria in squirrel monkey, a non-human primate, induces rapid degeneration of the sensory axon terminals in the olfactory bulb glomeruli. A population of axons, from newly formed sensory neurons in the olfactory neuroepithelium, regrow, passes the lamina cribrosa and, upon reaching the olfactory bulb, reinnervates the glomeruli. A new set of synaptic contacts is reformed between the sensory terminals and the post-synaptic dendritic processes of the glomeruli. Our observations indicate that this portion of the CNS of a non-human primate can be reinnervated after deafferentiation, and that active synaptogenesis occurs.

[Indexed for MEDLINE]

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