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GABA immunoreactivity in the human cerebellar cortex: a light and electron microscopical study.

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Date
2001-09
ICR Author
Robertson, David
Author
Benagiano, V
Roncali, L
Virgintino, D
Flace, P
Errede, M
Rizzi, A
Girolamo, F
Robertson, D
Bormann, J
Ambrosi, G
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Type
Journal Article
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Abstract
The distribution of gamma-aminobutyric acid (GABA) in surgical samples of human cerebellar cortex was studied by light and electron microscope immunocytochemistry using a polyclonal antibody generated in rabbit against GABA coupled to bovine serum albumin with glutaraldehyde. Observations by light microscopy revealed immunostained neuronal bodies and processes as well as axon terminals in all layers of the cerebellar cortex. Perikarya of stellate, basket and Golgi neurons showed evident GABA immunoreactivity. In contrast, perikarya of Purkinje neurons appeared to be negative or weakly positive. Immunoreactive tracts of longitudinally- or obliquely-sectioned neuronal processes and punctate elements, corresponding to axon terminals or cross-sectioned neuronal processes, showed a layer-specific pattern of distribution and were seen on the surface of neuronal bodies, in the neuropil and at microvessel walls. Electron microscope observations mainly focussed on the analysis of GABA-labelled axon terminals and of their relationships with neurons and microvessels. GABA-labelled terminals contained gold particles associated with pleomorphic vesicles and mitochondria and established symmetric synapses with neuronal bodies and dendrites in all cortex layers. GABA-labelled terminals associated with capillaries were seen to contact the perivascular glial processes, basal lamina and endothelial cells and to establish synapses with subendothelial unlabelled axons.
URI
https://repository.icr.ac.uk/handle/internal/1836
DOI
https://doi.org/10.1023/a:1014903908500
Collections
  • Breast Cancer Research
Subject
Cerebellar Cortex
Neurons
Animals
Humans
gamma-Aminobutyric Acid
Immunohistochemistry
Aged
Middle Aged
Female
Male
Research team
Molecular Cell Biology
Language
eng
License start date
2001-09
Citation
The Histochemical journal, 2001, 33 (9-10), pp. 537 - 543

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