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. 2015 Nov 9;5:16346. doi: 10.1038/srep16346

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Red and green lines indicate the relative abundances of metabolites in Xuchang and Dali, respectively. The following metabolites are abbreviated: tryptophan (Trp), phenylalanine (Phe), tyrosine (Tyr), 3-phosphoglycerate (3PGA), phosphoenolpyruvic acid (PEP), serine (Ser), O-acetylserine (OAS), glycine (Gly), valine (Val), alanine (Ala), leucine (Leu), 2-oxoglutaric acid (2-OG), glutamic acid (Glu), proline (Pro), hydroxyproline (Hyp), ornithine (Orn), arginine (Arg), putrescine (Put), spermidine (Spd), spermine (Spm), citrulline (Cit), 4-aminobutyric acid (GABA), methionine (Met), S-adenosylhomocysteine (SAH), S-adenosylmethionine (SAM), 1-aminocyclopropane-1-carboxylic acid (ACC), S-methylmethionine (SMM), aspartic acid (Asp), asparagine (Asn), threonine (Thr), ß-alanine (ß-Ala), and adenosine monophosphate (AMP). All data are displayed as mean ± SEM.