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Levels of nitrosative/oxidative stress markers in control and LPS-stimulated astrocytes. Astrocytes were stimulated with 1μg/ml of LPS. After 24h, the levels of nitrite in the medium (panel A), and those of GSH (panel B) and protein carbonyls (panel C) in the cells were determined as described under “Materials and Methods”. Values represent the mean ± SEM of 3 experiments. *p<0.05. NS, not significant.
