Table 1. Primers.
| Gene | Primers | |
| Muc5ac (regular) | forward | CTGATAGTCACATACGAGGAGGG |
| reverse | TCTTGGGACACTCTGTCTTCATT | |
| Actin (regular) | forward | AGCCATGTACGTAGCCATCC |
| reverse | TAGAAGCACTTGCGGTGCAC | |
| Muc1 (realtime) | forward | TGGGGATCTCTAGCATCAAGTT |
| reverse | GCTCCTACAAGTTGGCAGAAGT | |
| Muc2 (realtime) | forward | GTGCTGCAATATCACCTCATGT |
| reverse | TGTATGTGATGGAGCCTGAAAC | |
| Muc4 (realtime) | forward | CGGGATTCCTTCTACGTTACAG |
| reverse | GAATCGATCTGGACGGTACTTC | |
| Muc5ac (realtime) | forward | CCATGCAGAGTCCTCAGAACAA |
| reverse | TTACTGGAAAGGCCCAAGCA | |
| Muc5b (realtime) | forward | GCTGCTGTTACTCCTGTGAAAAAG |
| reverse | TGACCTCTGTCTCACAGCCCTTA | |
| Actin(realtime) | forward | ACCGTGAAAAGATGACCCAGA |
| reverse | GGAGTCCATCACAATGCCTGT | |