PMID- 28595107 OWN - NLM STAT- MEDLINE DCOM- 20180202 LR - 20210109 IS - 1873-264X (Electronic) IS - 0731-7085 (Linking) VI - 143 DP - 2017 Sep 5 TI - Application of (1)H NMR spectroscopy to the metabolic phenotyping of rodent brain extracts: A metabonomic study of gut microbial influence on host brain metabolism. PG - 141-146 LID - S0731-7085(17)30648-9 [pii] LID - 10.1016/j.jpba.2017.05.040 [doi] AB - (1)H NMR Spectroscopy has been applied to determine the neurochemical profiles of brain extracts from the frontal cortex and hippocampal regions of germ free and normal mice and rats. The results revealed a number of differences between germ free (GF) and conventional (CV) rats or specific pathogen-free (SPF) mice with microbiome-associated metabolic variation found to be both species- and region-dependent. In the mouse, the GF frontal cortex contained lower amounts of creatine, N-acetyl-aspartate (NAA), glycerophosphocholine and lactate, but greater amounts of choline compared to that of specific pathogen free (SPF) mice. In the hippocampus, the GF mice had greater creatine, NAA, lactate and taurine content compared to those of the SPF animals, but lower relative quantities of succinate and an unidentified lipid-related component. The GF rat frontal cortex contained higher relative quantities of lactate, creatine and NAA compared to the CV animals whilst the GF hippocampus was characterized by higher taurine and phosphocholine concentrations and lower quantities of NAA, N-acetylaspartylglutamate and choline compared to the CV animals. Of note is that, in both rat and mouse brain extracts, concentrations of hippocampal taurine were found to be greater in the absence of an established microbiome. The results provide further evidence that brain biochemistry can be influenced by gut microbial status, specifically metabolites involved in energy metabolism demonstrating biochemical dialogue between the microbiome and brain. CI - Copyright (c) 2017. Published by Elsevier B.V. FAU - Swann, J R AU - Swann JR AD - Section of Computational and Systems Medicine, Department of Surgery and Cancer, Faculty of Medicine, Imperial College London, South Kensington, London SW7 2AZ, UK. Electronic address: j.swann@imperial.ac.uk. FAU - Garcia-Perez, I AU - Garcia-Perez I AD - Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, Huddinge, Sweden. FAU - Braniste, V AU - Braniste V AD - Translational Safety, AstraZeneca, Alderley Park, Macclesfield, Cheshire, SK10 4TG, UK. FAU - Wilson, I D AU - Wilson ID AD - Section of Computational and Systems Medicine, Department of Surgery and Cancer, Faculty of Medicine, Imperial College London, South Kensington, London SW7 2AZ, UK. Electronic address: i.wilson@imperial.ac.uk. FAU - Sidaway, J E AU - Sidaway JE AD - Translational Safety, AstraZeneca, Alderley Park, Macclesfield, Cheshire, SK10 4TG, UK. FAU - Nicholson, J K AU - Nicholson JK AD - Section of Computational and Systems Medicine, Department of Surgery and Cancer, Faculty of Medicine, Imperial College London, South Kensington, London SW7 2AZ, UK. FAU - Pettersson, S AU - Pettersson S AD - Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, Huddinge, Sweden. FAU - Holmes, E AU - Holmes E AD - Section of Computational and Systems Medicine, Department of Surgery and Cancer, Faculty of Medicine, Imperial College London, South Kensington, London SW7 2AZ, UK. LA - eng GR - MR/N006321/1/MRC_/Medical Research Council/United Kingdom PT - Journal Article DEP - 20170531 PL - England TA - J Pharm Biomed Anal JT - Journal of pharmaceutical and biomedical analysis JID - 8309336 RN - 0 (Dipeptides) RN - 1W8M12WXYL (isospaglumic acid) SB - IM MH - Animals MH - *Brain MH - Dipeptides MH - Gastrointestinal Microbiome MH - Magnetic Resonance Spectroscopy MH - Metabolomics MH - Mice MH - Rats EDAT- 2017/06/09 06:00 MHDA- 2018/02/03 06:00 CRDT- 2017/06/09 06:00 PHST- 2017/03/15 00:00 [received] PHST- 2017/05/24 00:00 [revised] PHST- 2017/05/25 00:00 [accepted] PHST- 2017/06/09 06:00 [pubmed] PHST- 2018/02/03 06:00 [medline] PHST- 2017/06/09 06:00 [entrez] AID - S0731-7085(17)30648-9 [pii] AID - 10.1016/j.jpba.2017.05.040 [doi] PST - ppublish SO - J Pharm Biomed Anal. 2017 Sep 5;143:141-146. doi: 10.1016/j.jpba.2017.05.040. Epub 2017 May 31.