AFP and hepatocellular carcinoma: The results showed that LDHD gene expression in HCC was significantly associated with age (p = 1.484e-05) (Fig. S8D), gender (p = 0.021) (Fig. S8E), T stage (p = 3.254e-04) (Fig. S8F), histological grade (p = 8.281e-07) (Fig. S8G), pathological stage (p = 6.252e-04) (Fig. S8H) and AFP (p = 9.817e-13) (Fig. S8I).