Figure 2.

Variations in the level of the 36 metabolites identified by NMR in serum samples. The direction of the variation, considering the HC or ST groups as a reference. p-value calculated using the Mann–Whitney U test (p < 0.05 was considered significant). HC: healthy control, PV: polycythemia vera, ET: essential thrombocythemia, ST: secondary thrombocythemia. HDL: high-density lipoproteins, NAC: acetyl signals from glycoproteins, PUFAs: polyunsaturated fatty acids, VLDL: very-low-density lipoproteins.