Figure 1. Pentosidine accumulation in aggrecan (A1) and collagen from human IVD.
Pentosidine accumulation in aggrecan (A1) from NP (□) and AF (■) and in collagen from AF (●) and NP (○) were obtained from normal human IVD as a function of donor age. Data for NP and AF are statistically similar (P>0.05) for both collagen and aggrecan. Linear regression analysis revealed significant difference (P<0.002) in the accumulation of pentosidine in aggrecan as compared with collagen. Since no difference was noted between NP and AF data for collagen or aggrecan (P>0.05), mean correlation coefficients are presented.