NMR-Based Metabonomic Study Reveals Intervention Effects of Polydatin on Potassium Oxonate-Induced Hyperuricemia in Rats

Figure 2

Typical ¹H NMR spectra of serum samples of rats from control (a), model (b), polydatin (c), and allopurinol (d) groups. Keys: 1: leucine; 2: valine; 3: 3-hydroxybutyrate; 4: acetate; 5: acetone; 6: acetoacetate; 7: glutamine; 8: creatine/phosphocreatine; 9: phosphocholine; 10: β-glucose; 11: allantoin; 12: VLDL/LDL; 13: unsaturated lipids; 14: isoleucine; 15: lactate; 16: lysine; 17: alanine; 18: N-acetyl glycoproteins; 19: O-acetyl-glycoproteins; 20: glutamate; 21: pyruvate; 22: choline; 23: betaine/trimethylamine N-oxide; 24: glycine; 25: α-glucose.