Table I.

Primers used for reverse transcription-quantitative PCR.

Gene	Primer sequence (5'-3')
GAPDH	F: GGAATCCACTGGCGTCTTCA
	R: GGTTCACGCCCATCACAAAC
Aggrecan	F: TAAACCCGGTGTGAGAACCG
	R: CCTGGGTGACAATCCAGTCC
Collagen II	F: CCCCTGCAGTACATGCGG
	R: CTCGACGTCATGCTGTCTCAAG
MMP-3	F: GCATTGGCTGAGTGAAAGAGAC
	R: ATGATGAACGATGGACAGATGA
MMP-13	F: CAGTTGACAGGCTCCGAGAA
	R: CGTGTGCCAGAAGACCAGAA
ADAMTS-4	F: GCCAGCAACCGAGGTCCCATA
	R: CCACCACCAGTGTCTCCACGAAT
ADAMTS-5	F: GACAAGAGTCTGGAJGGTGAGCAA
	R: GCTGCATCGTAGTGCTCCTCAT

MMP, matrix metalloproteinase; ADAMTS, A disintegrin and metalloproteinase with thrombospondin motifs; F, forward; R, reverse.