Fig. 1
Representative 600-MHz 1H NMR spectra of (a) plasma, (b) urine and (c) polar tissue extract and (d) non-polar extract metabolites obtained from the AS group (upper layer) and control subjects (lower layer). Phe Phenylalanine, His Histidine, Glu Glutamate, Ace Acetate, Lys Lysine, Ala Alanine, Val Valine, Leu Leucine, Ile Isoleucine, Tyr Tyrosine, Met Methionine, Gln Glutamine, PC Phosphorylcholine, GPC Glycerophosphocholine, OAG O-acetyl glycoprotein, Lac Lactate, Pyr Pyruvate, Citr Citrate, Gly Glycine, 4-CG 4-Cresol glucuronide, GL Glyceryl of lipids, 3-HB 3-Hydroxybutyrate, NAG N-acetyl glycoprotein, NMR Nuclear magnetic resonance, TG triglycerides, PAG phenylacetylglycine, 2-PY 2-Pyridone-3-carboxamide, L1:CH 3 (CH 2 ) n ., L2 CH 3CH2CH2C=, L3 -(CH 2)n-, L4 CH 2CH2CO, L5 -CH 2C = C-, L6 CH 2CO, L7 C = CCH 2C = C, L8 -CH-, EDTA Ethylenediaminetetraacetic acid, AS Ankylosing spondylitis