Fig. 4From: LIPUS inhibits inflammation and catabolism through the NF‐κB pathway in human degenerative nucleus pulposus cellsLIPUS inhibits inflammation and catabolism through the NF‐κB pathway in LPS‐induced human NP cells. a The mRNA expressions of TNF-α and IL-1β were measured by RT-PCR after PDTC pretreatment. b The mRNA expression of MMP-3 and MMP-9 was measured by RT-PCR after PDTC pretreatment. The results are presented the means ± SD. *P < 0.05Back to article page