| GNMT | glycine N-methyltransferase |
| HCC | hepatocellular carcinomas |
| PL | Paeonia lactiflora Pall |
| PGG | 1,2,3,4,6-penta-O-galloyl-β-d-glucopyranoside |
| NFLD | nonalcoholic fatty liver |
| qPCR | quantitative real-time PCR |
| SAHA | suberoylanilide hydroxamic acid |
| TSA | trichostatin A |
| S/B | signal-to-background |
| S/N | signal-to-noise |
| mpk | mg per kg of body weight |