Table 1. Real-time PCR primers and product sizes.

Gene	Sequence(5′-3′)		Size(bp)
Col-II	sense	GGACGCTCAGGAGAAACAGG	221
	antisense	TTGTTCAGTGACTTGAGTGTAGCG
Col-I	sense	AGGGTGAGACAGGCGAACA	184
	antisense	CCGTTGAGTCCGTCTTTGC
Aggrecan	sense	GATCGACCAGAAGCTGTGTGAG	250
	antisense	TTGCAAGGAGTGTCCATCTGA
Sox9	sense	GAAAGACCACCCCGATTACAAG	236
	antisense	CGTCGGTTTTGGGAGTGGT
GAPDH	sense	GCATGGGCCAGAAGGACTCGTA	214
	antisense	TCGCGGTTGGCCTTGGGGTTCA