| The target genes | Primers | Base composition |
| PDEGF-A | sense | 5’-ACGTCCGCCAACTTCCTGA T-3’ |
| antisense | 5’-TCCGGATTCAGGCTTGTGGT-3’ | |
| Type I collagen | sense | 5’-GCGACAGAGGCATAAAGGGT-3’ |
| antisense | 5’-CCAGGGAGACCGTTGAGTC-3’ | |
| Type III collagen | sense | 5’-GAGCTTCCCAGAACATCA-3’ |
| antisense | 5’-ATTCCCCAGTGTGTTTCG-3’ | |
| GAPDH | sense | 5’-CCTCCTGCACCACCAACT-3’ |
| antisense | 5’-CTTCTGGGTGGCAGTGATG-3’ |