| DEGs | Differentially expressed genes |
| EMT | Epithelial–mesenchymal transition |
| GEPIA2.0 | Gene expression profiling interactive analysis 2.0 |
| GO | Gene ontology |
| HCC | Hepatocellular carcinoma |
| IHC | Immunohistochemistry |
| KEGG | Kyoto encyclopedia of genes and genomes |
| KM | Kaplan–Meier |
| MCU | Mitochondrial Ca2+ uniporter |
| NAD | Nicotinamide adenine dinucleotide |
| NAMPT | Nicotinamide phosphoribosyltransferase |
| PARP2 | Poly (ADP-Ribose) polymerase 2 |
| PCA | Principal component analysis |
| PPI | Protein–protein interaction |
| ROS | Reactive oxygen species |
| RT-qPCR | Reverse transcription quantitative polymerase chain reaction |
| SIRT6 | Sirtuin 6 |
| SIRT6/7 | Sirtuin 6/7 |
| SLC25A51 | Solute carrier family 25 member 20 |
| TCGA | The cancer genome atlas |