Fig. 1

Correlation between the expression of the aggrecan (ACAN) and N-acetyltransferase 2 (NAT2) genes induced by NTP. The fold changes in mRNA expression induced by NTP treatment in cultured NP cells are shown (N = 4). ACAN and NAT2 were detected by qPCR and microarray analysis (data available on the NCBI repository), respectively