Table 2. Primers used for target amplification in this study.
| Name | primer | Accession number | Sequence (5′–3′) |
| COL-2 | forward | NM_033150.3 | GCACCTGCAGAGACCTGAAAC |
| reverse | GCAAGTCTCGCCAGTCTCCA | ||
| MMP-13 | forward | NC_000075.6 | TCCTGATGTGGGTGAATACAATG |
| reverse | GCCATCGTGAAGTCTGGTAAAAT | ||
| GAPDH | forward | NC_000012.12 | GCACCGTCAAGGCTGAGAAC |
| reverse | TGGTGAAGACGCCAGTGGA | ||
| miR-27b-3p | forward | MIMAT0000419 | CGTCTTGAATCGGTGACACTT |
| circ_0000423 | forward | GCAGCAGGCTAGAAAAGGATG | |
| reverse | GCCATTGGCTCTGCATTTCA | ||
| U6 | forward | GCTTCGGCAGCACATATACTAAAAT | |
| reverse | CGCTTCACGAATTTGCGTGTCAT |