The normalized 13C enrichments of (A) glutamine-C4, (B) glutamate-C4, and (C) GABA-C2 in different brain regions, overall cortex, and the whole brain, normalized by the concentration of [2-13C]acetate in the plasma for room-air (9 rats) and ethanol treated (8 rats) groups. Note: COR: overall cortex; OB: olfactory bulb; CE: cerebellum; MEA: medulla; MID: midbrain; VTA: Ventral tegmental area; THA: Thalamus; HYP: hypothalamus; HP: hippocampus; STR: striatum; FC: frontal cortex; PC: parietal cortex; OC: occipital cortex; TC: temporal cortex,
*p<0.05,
#p<0.01.