期刊
JOURNAL OF NEUROCHEMISTRY
卷 129, 期 2, 页码 304-314出版社
WILEY-BLACKWELL
DOI: 10.1111/jnc.12634
关键词
C-13 metabolism; alcohol; GABA(A); metabonomics; NMR spectroscopy
资金
- Australian National Health and Medical Research Council [568767]
Ethanol is a known neuromodulatory agent with reported actions at a range of neurotransmitter receptors. Here, we measured the effect of alcohol on metabolism of [3-C-13]pyruvate in the adult Guinea pig brain cortical tissue slice and compared the outcomes to those from a library of ligands active in the GABAergic system as well as studying the metabolic fate of [1,2-C-13]ethanol. Analyses of metabolic profile clusters suggest that the significant reductions in metabolism induced by ethanol (10, 30 and 60mM) are via action at neurotransmitter receptors, particularly 43 receptors, whereas very low concentrations of ethanol may produce metabolic responses owing to release of GABA via GABA transporter 1 (GAT1) and the subsequent interaction of this GABA with local 5- or 1-containing GABA(A)R. There was no measureable metabolism of [1,2-C-13]ethanol with no significant incorporation of C-13 from [1,2-C-13]ethanol into any measured metabolite above natural abundance, although there were measurable effects on total metabolite sizes similar to those seen with unlabelled ethanol.
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