Affordable Access

Publisher Website

Glycine immunoreactive projections from the dorsal to the anteroventral cochlear nucleus

Authors
Journal
Hearing Research
0378-5955
Publisher
Elsevier
Publication Date
Volume
51
Issue
1
Identifiers
DOI: 10.1016/0378-5955(91)90003-r
Keywords
  • Cochlear Nucleus
  • Glycine
  • Gaba
  • Immunocytochemistry
  • Guinea Pig
  • Auditory Pathways
  • Horseradish Peroxidase
Disciplines
  • Chemistry

Abstract

Abstract The aim of the present study was to investigate whether projections from the dorsal cochlear nucleus (DCN) to the anteroventral cochlear nucleus (AVCN) use either of two inhibitory transmitters, glycine or GABA. Retrograde HRP labeling of DCN-to-AVCN projection neurons was combined with postembedding immunocytochemistry in the DCN of guinea pigs. Following injections of HRP in the anterior or posterior divisions of AVCN, large numbers of neurons were labeled in the DCN. All of these were located in the deep layer, except for a few granule cells. Nearly all (96%) of the projection neurons were immunoreactive for glycine and most had dendritic and somatic morphologies corresponding to those of elongate neurons (so-called ‘corn’ cells); only a few resembled small stellate neurons. Few (3%) retrogradely labeled neurons were immunoreactive for GABA. The results suggest that projections from the deep DCN to the AVCN are formed primarily by glycinergic elongate neurons. These projections could have a substantial inhibitory influence on the output of neurons in the AVCN.

There are no comments yet on this publication. Be the first to share your thoughts.

Statistics

Seen <100 times
0 Comments

More articles like this

GABA- and glycine-immunoreactive projections from...

on The Journal of Comparative Neu... May 19, 1997

Tonotopic projection from the dorsal to the antero...

on The Journal of Comparative Neu... Feb 15, 1988

Projections from the ventral cochlear nucleus to t...

on The Journal of Comparative Neu... Aug 25, 1997
More articles like this..