Kemmer, M and Vater, M (1997) The distribution of GABA and glycine immunostaining in the cochlear nucleus of the mustached bat (Pteronotus parnellii). CELL AND TISSUE RESEARCH, 287 (3). pp. 487-506. ISSN 0302-766X,
Full text not available from this repository.Abstract
The distribution of neuronal elements immunoreactive for gamma-aminobutyric acid (GABA) and glycine in the cochlear nucleus of the mustached bat Pteronotus parnellii has been studied by means of the postembedding technique on serial semithin sections. Our goal has been to identify similarities and differences in the organization of putatively inhibitory circuits between a highly specialized echolocating bat and previously studied non-echolocating mammals. The results reveal a basically conserved pattern of putatively GABAergic and glycinergic elements in the bat cochlear nucleus, and subtle but distinct modifications in certain inhibitory circuits. As in other mammals, immunoreactive cells possibly representing local interneurons are most abundant in the dorsal cochlear nucleus. These in elude single-GABA-immunoreactive cells and double-labeled cells in the superficial layers and single-glycine-labeled cells in the deep layers. Coincident with the phylogenetic trend toward a reduced lamination of the dorsal cochlear nucleus in bats, there is a clear reduction in the numbers of local interneurons of the superficial layer. In contrast, the tuberculoventral system of the deep layer appears hypertrophied. As in other mammals, the ventral cochlear nucleus contains a few large single-glycine-immunoreactive cells and scattered double-labeled cells. Immunoreactive puncta are abundant throughout the cochlear nucleus complex with no trends indicating a differential strength of inhibitory inputs to regions representing the various harmonics of the echolocating signal.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | SUPERIOR OLIVARY COMPLEX; STEM AUDITORY NUCLEI; GUINEA-PIG; HORSESHOE BATS; BRAIN-STEM; INTRACELLULAR-RECORDINGS; FUNCTIONAL-ORGANIZATION; RETROGRADE TRANSPORT; ELECTRON-MICROSCOPY; CENTRIFUGAL FIBERS; immunocytochemistry; GABA; glycine; nervous system, central; auditory system; inhibitory neurons; echolocation; Pteronotus parnellii (Chiroptera) |
| Depositing User: | Dr. Gernot Deinzer |
| Last Modified: | 19 Oct 2022 08:32 |
| URI: | https://pred.uni-regensburg.de/id/eprint/50986 |
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