Table 8.
Top 20 keywords with the most frequencies concerning the research of epigenetics in cancers.
| Rank | Keywords | Frequency | TLS | Rank | Keywords | Frequency | TLS |
|---|---|---|---|---|---|---|---|
| 1 | DNA methylation | 12,146 | 31,628 | 11 | Hypermethylation | 2583 | 8758 |
| 2 | Expression | 11,414 | 31,127 | 12 | Differentiation | 2530 | 6679 |
| 3 | Cancer | 9964 | 25,611 | 13 | Activation | 2477 | 7070 |
| 4 | Epigenetics | 6762 | 18,308 | 14 | Identification | 2460 | 7048 |
| 5 | Methylation | 6652 | 18,845 | 15 | Transcription | 2406 | 6475 |
| 6 | Gene-expression | 5781 | 12,995 | 16 | Apoptosis | 2373 | 7084 |
| 7 | Gene | 4083 | 11,932 | 17 | Mutations | 2359 | 5852 |
| 8 | Cells | 3192 | 9081 | 18 | Epigenetic regulation | 2283 | 5766 |
| 9 | Breast-cancer | 2781 | 7525 | 19 | Protein | 2216 | 5969 |
| 10 | Chromatin | 2648 | 6597 | 20 | Growth | 2122 | 6594 |
TLS = total link strength.