Table 1. The primer sequences for real-time reverse transcription PCR.

Genes	Orientations	Sequences (5′-3′)
MMP2	Forward Reverse	GTGAAGTATGGGAACGCCG GCCGTACTTGCCATCCTTCT
MMP9	Forward Reverse	TACTGTGCCTTTGAGTCCG TTGTCGGCGATAAGGAAG
MMP14	Forward Reverse	GCAGAAGTTTTACGGCTTGCAA CCTTCGAACATTGGCCTTGAT
GAPDH	Forward Reverse	CATCAGCAATGCCTCCTGCAC TGAGTCCTTCCACGATACCAAAGTT