Perineuronal nets and subtypes of GABAergic cells differentiate auditory and multisensory nuclei in the intercollicular area of the midbrain.
Afferent Pathways
/ anatomy & histology
Animals
Fluorescent Antibody Technique
GABAergic Neurons
/ cytology
Glutamate Decarboxylase
/ immunology
Guinea Pigs
Mesencephalon
/ anatomy & histology
Neural Pathways
/ anatomy & histology
Oligodendroglia
/ cytology
Tegmentum Mesencephali
/ anatomy & histology
Guinea pigs
RRID: AB_10807945
RRID: AB_141607
RRID: AB_2278725
RRID: AB_2336066
RRID: AB_2336132
RRID: AB_2336874
RRID: AB_2336875
RRID: AB_2336881
RRID: AB_2534012
RRID: AB_2535710
RRID: AB_2665454
RRID: AB_2735091
RRID: SCR_001775
VGLUT2
intercollicular tegmentum
nucleus of the brachium of the inferior colliculus
rostral pole of the inferior colliculus
Journal
The Journal of comparative neurology
ISSN: 1096-9861
Titre abrégé: J Comp Neurol
Pays: United States
ID NLM: 0406041
Informations de publication
Date de publication:
01 11 2020
01 11 2020
Historique:
received:
27
09
2019
revised:
07
04
2020
accepted:
08
04
2020
pubmed:
19
4
2020
medline:
17
11
2021
entrez:
19
4
2020
Statut:
ppublish
Résumé
The intercollicular region, which lies between the inferior and superior colliculi in the midbrain, contains neurons that respond to auditory, visual, and somatosensory stimuli. Golgi studies have been used to parse this region into three distinct nuclei: the intercollicular tegmentum (ICt), the rostral pole of the inferior colliculus (ICrp), and the nucleus of the brachium of the IC (NBIC). Few reports have focused on these nuclei, especially the ICt and the ICrp, possibly due to lack of a marker that distinguishes these areas and is compatible with modern methods. Here, we found that staining for GABAergic cells and perineuronal nets differentiates these intercollicular nuclei in guinea pigs. Further, we found that the proportions of four subtypes of GABAergic cells differentiate intercollicular nuclei from each other and from adjacent inferior collicular subdivisions. Our results support earlier studies that suggest distinct morphology and functions for intercollicular nuclei, and provide staining methods that differentiate intercollicular nuclei and are compatible with most modern techniques. We hope that this will help future studies to further characterize the intercollicular region.
Identifiants
pubmed: 32304096
doi: 10.1002/cne.24926
pmc: PMC7492418
mid: NIHMS1584480
doi:
Substances chimiques
Glutamate Decarboxylase
EC 4.1.1.15
glutamate decarboxylase 1
EC 4.1.1.15
Types de publication
Journal Article
Research Support, N.I.H., Extramural
Langues
eng
Sous-ensembles de citation
IM
Pagination
2695-2707Subventions
Organisme : NIDCD NIH HHS
ID : R01 DC004391
Pays : United States
Informations de copyright
© 2020 Wiley Periodicals, Inc.
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