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Tissue concentrations of metabolites from the purine metabolism in different regions of the adult human cerebral cortex. All metabolites were measured with TQMS. ∗p < 0.05; ∗∗p < 0.01; ∗∗∗p < 0.001. a, significant differences with respect to entorhinal cortex; b, significant differences with respect to hippocampus.
