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. 2013 Feb 19;8(2):e56422. doi: 10.1371/journal.pone.0056422

Figure 3. Partial Least Squares Discriminant Analysis of NMR spectra acquired on blood serum samples.

Figure 3

Scores (A) and weights (on LV1, B, and LV2, C) plots obtained from OSC-PLS-DA performed on the NMR spectra of 44 blood serum samples. Group A (solid red, 19 samples): patients at diagnosis; group C1 (solid blue, 10 samples): sustained remission and group C2 (empty blue, 15 samples): in relapse after chemotherapy. Cho: choline; Cre: creatinine; Pyr: pyruvate; Ala: alanine; 2HiB: 2-hydroxyisobutyrate; Lac: lactate; 2HB: 2-hydroxybutyrate. H-xan: hypoxantine; Glu: glutamate; Gln: glutamine; Ace: acetate.