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- W2403670196 abstract "The nervous system is one of the main targets of ethanol toxicity and it has been suggested that astrocytes might play an important role as their integrity is essential for the normal growth and functioning of neurons. Morphological variations of astrocyte cultures were therefore examined after exposure to various doses of ethanol (0.5, 1 and 2%) for different durations (24, 48, 72 and 96 h). The percentage of cell viability and the cell density were calculated and the changes in astrocyte morphology were assessed by an image analysis system (Samba 2005) allowing the characterization of 5 parameters (perimeter, surface, elongation factor, convexity factor and the form factor) of a great number of cells (over 6500). This was necessary because of the high variability in normal cultured astrocyte morphology. A two-way statistical approach (2-factors ANOVA completed by stepwise discriminant analysis) was adopted to emphasize the differences between control and exposed cells. In such conditions, ethanol treated cells became more elongated, less circular and more concave and did not grow like non-exposed cells. The mean pooled values of these parameters tended to be modified as a function of the dose of ethanol. The relationships between parameters clearly separated the groups as a function of the different doses. Finally no significant difference was observed in cell viability and cell density despite lower scores in the groups exposed to the highest dose of ethanol for the longest time. Our results suggest that ethanol might affect astrocytes in two different but probably complementary ways by modifying the cell shape and by altering normal cell development." @default.
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- W2403670196 modified "2023-09-26" @default.
- W2403670196 title "Characterization of the morphological variations of astrocytes in culture following ethanol exposure." @default.
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