Table 1.

Sequence information of primers used for RT-PCR.

Gene	Primer	Sequence (5' → 3')
MMP-1	Forward	AGC GTG TGA CAG TAA GCT AA
	Reverse	GTT TTC CTC AGA AAG AGC AGC AT
β-actin	Forward	ATT GTT GCC ATC AAT GAC CC
	Reverse	AGT AGA GGC AGG GAT GAT