Figure 2From: Constitutive expression of cathepsin K in the human intervertebral disc: new insight into disc extracellular matrix remodeling via cathepsin K and receptor activator of nuclear factor-κB ligandRelationship between RANKL expression and cathepsin K expression. A significant, positive correlation was present between gene expression levels of RANKL and cathepsin K (r2 = 92.2; P < 0.0001). (Dashed line shows the 95% confidence interval for the correlation).Back to article page