NMR-Based Metabonomic Studies on Stomach Heat and Cold Syndromes and Intervention Effects of the Corresponding Formulas

Figure 2

Representative ¹H NMR spectra of rat serum. (a) Control group, (b) SH model group, and (c) SC model group. Keys: 1: Isoleucine; 2: Leucine; 3: Methionine; 4: Lysine; 5: Valine; 6: Choline; 7: Betaine; 8: Creatine; 9: Phosphocholine; 10: Trimethylamine; 11: β-Glucose; 12: α-Glucose; 13: Pyruvate; 14: Lactate; 15: Alanine; 16: Glutamate; 17: very low-density/low-density lipoprotein (VLDL/LDL) –CH₂–; 18: Lipid =CHCH₂CH=; 19: Lipid CH=CH; 20: Acetoacetate; 21: Acetone; 22: VLDL/LDL –CH₃–; 23: N-acetyl signals from glycoproteins; 24: Glucose and amino acid CH; 25: glycine; 26: Allantoin.