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Electron microscopic study of Golgi-impregnated and gold-toned neurons and fibers in the claustrum of the cat

Journal of molecular histology, 2018-12, Vol.49 (6), p.615-630 [Peer Reviewed Journal]

Springer Nature B.V. 2018 ;Journal of Molecular Histology is a copyright of Springer, (2018). All Rights Reserved. ;ISSN: 1567-2379 ;EISSN: 1567-2387 ;DOI: 10.1007/s10735-018-9799-7 ;PMID: 30306356

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Title:
Electron microscopic study of Golgi-impregnated and gold-toned neurons and fibers in the claustrum of the cat
Author: Hinova-Palova, Dimka ; Iliev, Alexandar ; Edelstein, Lawrence ; Landzhov, Boycho ; Kotov, Georgi ; Paloff, Adrian
Subjects: Animals ; Basal ganglia ; Basal Ganglia - cytology ; Basal Ganglia - physiology ; Biomedical and Life Sciences ; Biomedicine ; Cats ; Cell Biology ; Cell Size ; Cortex (insular) ; Cortex (motor) ; Dendritic Spines ; Developmental Biology ; Fibers ; Gold ; Golgi Apparatus ; Interneurons ; Life Sciences ; Microscopy, Electron - methods ; Neurons - ultrastructure ; Original Paper ; Presynapse ; Presynaptic Terminals ; Putamen ; Sensorimotor integration ; Sensory integration ; Somatosensory cortex ; Substantia grisea ; Telencephalon ; Visual cortex
Is Part Of: Journal of molecular histology, 2018-12, Vol.49 (6), p.615-630
Description: The claustrum is a subcortical nucleus found in the telencephalon of all placental mammals. It is a symmetrical, thin and irregular sheet of grey matter which lies between the inner surface of the insular cortex and the outer surface of the putamen. The claustrum has extensive connections with the visual, auditory, somatosensory and motor regions of the cortex, as well as with subcortical and allocortical regions. The aim of this study was to provide a detailed description of the morphology of different types of Golgi-impregnated and gold-toned neurons and fibers in the dorsal claustrum of the cat employing the combined Golgi-electron microscope Fairén method. We were able to distinguish two major types of neurons: those with dendritic spines (spiny) and those without dendritic spines (aspiny). In both groups we observed large (21–40 µm in diameter), medium-sized (16–21 µm in diameter) and small cells (10–16 µm in diameter), describing their ultrastructural organization and characteristic features, including the presence of terminal boutons. These ultrastructural findings allow us to conclude that large and medium-sized spiny claustral neurons are indeed efferent neurons, projecting to the cortex, while the small spiny and the different types of aspiny neurons are most likely inhibitory local circuit interneurons. The findings in the present study will hopefully contribute to a better understanding of the role of the claustrum.
Publisher: Dordrecht: Springer Netherlands
Language: English
Identifier: ISSN: 1567-2379
EISSN: 1567-2387
DOI: 10.1007/s10735-018-9799-7
PMID: 30306356
Source: MEDLINE
ProQuest Central

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Electron microscopic study of Golgi-impregnated and gold-toned neurons and fibers in the claustrum of the cat

Springer Nature B.V. 2018 ;Journal of Molecular Histology is a copyright of Springer, (2018). All Rights Reserved. ;ISSN: 1567-2379 ;EISSN: 1567-2387 ;DOI: 10.1007/s10735-018-9799-7 ;PMID: 30306356

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