Quantitative Evaluation of Changes in the Striatal Astrocyte Axons in Simulated Parkinsonism

Three parkinsonism models using neurotoxin 6-OHDA and pesticides rotenone and paraquat were reproduced in Wistar rats and parameters of astrocyte processes in the striatum (axon number and length, area occupied by them, and axon branching pattern) detected by immunohistochemical reaction for acid gl...

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Bibliographic Details
Published in:Bulletin of experimental biology and medicine 2016-02, Vol.160 (4), p.505-509
Main Authors: Voronkov, D. N., Khudoerkov, R. M., Dikalova, Yu. V., Sheloukhova, L. I.
Format: Article
Language:English
Subjects:
Analysis
Animals
Astrocytes - metabolism
Axons - metabolism
Biomedical and Life Sciences
Biomedicine
Cell Biology
Corpus Striatum - pathology
Glial Fibrillary Acidic Protein - metabolism
Herbicides
Internal Medicine
Laboratory Medicine
Male
Oxidopamine - toxicity
Paraquat - toxicity
Parkinson's disease
Parkinsonian Disorders - chemically induced
Parkinsonian Disorders - pathology
Pathology
Rats
Rats, Wistar
Rotenone - toxicity
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Summary:Three parkinsonism models using neurotoxin 6-OHDA and pesticides rotenone and paraquat were reproduced in Wistar rats and parameters of astrocyte processes in the striatum (axon number and length, area occupied by them, and axon branching pattern) detected by immunohistochemical reaction for acid glial fibrillary protein were studied by computer morphometry. By these parameters, three morphological types of astrocytes were distinguished. Two variants of changes were found in the used parkinsonism models: 1) more intense branching and even elongation of all axons and 2) reduction of small and elongation of the main remaining stems, which manifested in polarization of glial cell. Type 1 reaction was obviously associated with compensatory increase in astrocyte interaction with neurons, while type 2 reflected astrocyte response to injury and impaired glioneuronal interactions.
ISSN:0007-4888
1573-8221
DOI:10.1007/s10517-016-3208-6