Fig. 1
Resonance assignments of representative 1H NMR spectra at 600 MHz. a Serum and b urine samples, HAE (red line) and control (blue line) groups. Abbreviations: 1-MH, 1-methylhistidine; 3-HB, 3-hydroxybutyrate; 3-MH, 3-methylhistidine; Ace, acetate; AD, acetamide; AH, aminohippurate; Ala, alanine; All, allantoin; Alt, allantoate; Bet, betaine; Cho, choline; Ci, citrate; Cn, creatinine; Cr, creatine; DMA, dimethylamine; DMG, N,N-dimethylglycine; For, formate; G, glycerol; GA, guanidoacetate; GABA, γ-aminobutyrate; Gla, glycolate; Gln, glutamine; Glu, glutamate; Gly, glycine; GPC, glycerophosphocholine; HIB, 2-hydroxyisobutyrate; Hip, hippurate; IB, isobutyrate; Ile, isoleucine; Lac, lactate; Leu, leucine; Lys, lysine; M, malonate; MA, methylamine; Mal, malate; Met, methionine; MG, methylguanidine; m-I, myo-inositol; MM, methylmalonate; Mol, methanol; NAG, N-acetylglutamate; OA, oxaloacetate; OAG, O-acetylglycoprotein; PAG, phenylacetylglycine; PC, phosphocholine; Phe, phenylalanine; p-HPA, para-hydroxyphenylacetate; Ser, serine; Tau, taurine; Thr, threonine; TMAO, trimethylamine N-oxide; Tri, trigonelline; Tyr, tyrosine; Ura, uracil; Val, valine; α-Glc, α-glucose; α-KG, α-ketoglutarate; β-Glc, β-glucose