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Cellular antioxidant response to the combination of CXB and TMZ. Superoxide dismutase (SOD) (A–D) and catalase (E–H) activities were evaluated in cell lysates of GL12, GL44, U87MG, and T98G, respectively, using an assay kit. The results from three independent experiments in duplicate are shown (mean ± SEM). For comparative analysis of groups of data, a one-way ANOVA with Tukey’s post hoc test was used (* p < 0.05, ** p < 0.01, *** p < 0.001).
