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Levels of neurotransmitters in cerebral cortices. DA (A), NE (B), 5-HT (C), and ACh (D) levels in brain tissues were measured by ELISA. Values are presented as mean ± SEM (n = 5 animals per group). Comparisons were performed using one-way ANOVA with Fisher’s LSD test: *p < 0.05; ns, non-significant.
