Publication: Synaptophysin immunoreactivity in the cat cochlear nuclei
Authors
Gil-Loyzaga, P. ; Bartolome, M.V. ; Ibanez, A.
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Publisher
Murcia : F. Hernández
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DOI
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info:eu-repo/semantics/article
Description
Abstract
The presence of synaptophysin, a presynaptic
ca2+ binding glycoprotein, has been analyzed in the
cochlear nucleus complex of the adult cat using an antisynaptophysin
monoclonal antibody. Synaptophysin
immunoreactivity was differently distributed between
regions of cochlear nuclei. Terminal boutons contacting
directly with neurons (cell bodies and dendrites) or in
the neuropil of ventral and dorsal cochlear nuclei
appeared immunostained. In the ventral cochlear
nucleus, synaptophysin-labelled boutons were clearly
defined in contact with spherical, globular, multipolar,
octopus and cochlear-nerve root neurons. However, the
dorsal cochlear nucleus showed a dense immunostained
network of synaptophysin-labelled puncta, inside which
some neuron cell bodies were observed. The present
findings show a differential distribution of synaptophysin-
immunostained boutons between the ventral and
the dorsal cochlear nuclei of the cat. The present
description of the different synaptophysin-labelled
terminal boutons in the cochlear nuclei complex and
their pattern of distribution, will be useful for further
studies on development, degeneration or regeneration of
the peripheral auditory pathway.
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