Free radical production after exposure of astrocytes and astrocytic C6 glioma cells to ethanol. Preliminary results
Autor: | Brigitte Gonthier, H. Eysseric, Luc Barret, Denis Daveloose, A. Soubeyran, R. Saxod |
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Rok vydání: | 1998 |
Předmět: |
Free Radicals
Cell Survival Radical Intact brain Astrocytoma Biochemistry C6 glioma Rats Sprague-Dawley chemistry.chemical_compound medicine Tumor Cells Cultured Animals Ethanol metabolism Free Radical Formation Neurons Ethanol Spin trapping Brain Neoplasms Electron Spin Resonance Spectroscopy General Medicine Rats medicine.anatomical_structure chemistry Liver Astrocytes Biophysics Oxidation-Reduction Astrocyte |
Zdroj: | Free radical research. 27(6) |
ISSN: | 1071-5762 |
Popis: | Formation of the alpha-hydroxyethyl radical (CH3 degree CHOH) has already been extensively demonstrated after ethanol metabolism in the liver. Despite favourable conditions, this formation in the brain has remained speculative since there is no direct experimental evidence in intact brain cells. In this preliminary study, the formation of such a radical was observed after exposure of astrocytes and astrocytic C6 glioma cells to ethanol. These cells were studied because astrocyte integrity is essential for normal growth and functioning of neurons. The free radicals were detected by EPR spectroscopy using the spin trapping technique. Astrocytes appeared to be more sensitive than the C6 cells to free radical formation as the intensity of the signal was higher after exposure of the astrocytes and increased with time, a fact not observed after exposure of the C6 cells. |
Databáze: | OpenAIRE |
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