Figure 1.

Representative 599.95 MHz ¹H NMR spectra (δ5.5-0.5) of the plasma obtained from a patient with (A) CSCC, (B) CIN and (C) a healthy control. Only significant metabolites have been labeled for each of the three plasma metabolic profiles. 1, very-low density lipoprotein (VLDL); 2, acetone; 3, unsaturated lipid; 4, carnitine; 5, isoleucine; 6, leucine; 7, valine; 8, lactate; 9, alanine; 10, glycine; 11, acetylcysteine; 13, creatine; 15, cho-line; 16, glycoprotein; 17, α-glucose; 18, β-glucose; NMR, nuclear magnetic resonance; CSCC, cervical squamous cell carcinoma; CIN, cervical intraepithelial neoplasia.