Figure 6From: Matrix metalloproteinase 28, a novel matrix metalloproteinase, is constitutively expressed in human intervertebral disc tissue and is present in matrix of more degenerated discsPercentage of cells positive for matrix metalloproteinase 28 immunolocalization. The percentage of cells positive for matrix metalloproteinase (MMP) 28 immunolocalization was quantitatively determined. When analyzed by site, the outer annulus showed the largest percentage of positive cells, followed by the inner annulus and then the nucleus (P = 0.008, analysis of variance).Back to article page