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The effect of BCAA-supplemented diets on levels of aromatic amino acids in prefrontal cortex. A: levels of tyrosine (ANOVA: BCAA, P < 0.0001). B: level of tryptophan (ANOVA: BCAA, P < 0.0002) in prefrontal cortex in rats fed the indicated diets. Data are presented as means ± SE (n = 5/group).
