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Neurophysiology

, Volume 40, Issue 4, pp 279–287 | Cite as

Disorders in the Cytoskeleton of Astroglia and Neurons in the Rat Brain Induced by Long-Lasting Exposure to Ethanol and Correction of These Shifts by Hydrated Fullerene С60

  • А. A. TikhomirovEmail author
  • G. V. Andrievsky
  • V. S. Nedzvetsky
Article

Using an immunoblotting technique, we examined the content of proteins of intermediate filaments of the cytoskeleton of neurons and astroglial cells and also changes in the polypeptide composition of these proteins in different brain regions of rats subjected to long-term (12 weeks) alcoholization. The sensitivity of these indices to the effect of ethanol in different cerebral structures was in the following sequence: hippocampus > cerebral cortex > cerebellum. The greatest changes in a marker of the astrocyte cytoskeleton (glial fibrillary acidic protein, GFAP) were observed in the hippocampus of alcoholized animals, where the GFAP level was by 72% lower with respect to the control values. In this cerebral region, the content of the neurofilament 210-kdalton subunit also sharply dropped (by 76% with respect to the control). A positive correlation between a decrease in the GFAP content and loss of the neurofilament 210-kdalton subunit was demonstrated. These data show that the organization of the intracellular filamentary system of neurons and gliocytes is disturbed under experimental conditions, and this is one of the probable reasons for cell death in the nerve tissue induced by chronic consumption of ethanol. The use of a hydrated form of fullerene С60 (its molecular/colloid solution) for antioxidant correction of the pathological state of the CNS induced by the above-mentioned toxicant removed, to a considerable extent, negative modifications of cytoskeletal structures and protected astroglial and nerve cells from degeneration.

Keywords

ethanol alcoholization astrocytes cytoskeleton glial fibrillary acidic protein neurofilaments hydrated fullerene С60 

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Copyright information

© Springer Science+Business Media, Inc. 2008

Authors and Affiliations

  • А. A. Tikhomirov
    • 1
    Email author
  • G. V. Andrievsky
    • 2
  • V. S. Nedzvetsky
    • 1
  1. 1.Dnepropetrovsk National UniversityDnepropetrovskUkraine
  2. 2.ІСМА, NTK “Institute of Monocrystals”National Academy of Sciences of UkraineKhar’kovUkraine

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