Serum and urine metabolomic fingerprinting in diagnostics of inflammatory bowel diseases

Figure 1 Median 600 MHz proton nuclear magnetic resonance noesy spectra of serum samples. A: Healthy control subjects; B: Patients with inflammatory bowel diseases. 1: Lipids LDL CH₃-(CH₂)_n-; 2: Lipids VLDL CH₃-(CH₂)_n-; 3: Leucine; 4: Isoleucine; 5: Valine; 6: 3-Methyl-2-oxovalerate; 7: Isobutyrate; 8: 3-Hydroxybutyrate; 9: Lipids LDL CH₃-(CH₂)_n-; 10: Lipids VLDL CH₃-(CH₂)_n-; 11: Lactate; 12: Threonine; 13: Alanine; 14: Lipids VLDL CH₂-CH₂-C=O; 15: Lysine; 16: Acetate; 17: Lipids -CH₂-CH=CH-; 18: N-acetylated compounds; 19: Glutamine; 20: Lipids -CH₂-C=O; 21: Acetone; 22: Acetoacetate; 23: Pyruvate; 24: Citrate; 25: Dimethylamine; 26: Lipids =CH-CH₂-CH=; 27: Trimethylamine; 28: Creatine; 29: Creatinine; 30: Dimethyl sulfone; 31: Choline; 32: Phosphocholine; 33: Glycerophosphocholine; 34: α and β-Glucose; 35: Methanol; 36: Glycine; 37: β-Glucose; 38: α-Glucose; 39: Lipids -CH=CH-; 40: Urea; 41: Tyrosine; 42: 1-Methylhistidine; 43: Phenylalanine; 44: Formate.