On the other hand, the expression of PTGR1 (Fig. 6e), an enzyme reported as an HCC marker and capable of promoting cell proliferation and oxidative stress resistance in experimental HCC29, as well as that of GSTP1 (Fig. 6f), an enzyme expressed in early stages of the rat HCC30, was not associated with worse prediction of survival (HR = 1.1, p = 0.67 and HR = 1, p = 0.97, respectively). Here, GSTP1 is linked to hepatocellular carcinoma.