Specifically, the expression of FDX1, LIAS, LIPT1, DLD, DLAT, PDHA1, MTF1, GLS, CDKN2A, SLC31A1 and ATP7B was upregulated in HCC tissues versus normal tissues, while the expression of PDHB was downregulated (Figure 1A, all P < 0.05). This evidence concerns the gene SLC31A1 and hepatocellular carcinoma.