E N D
Figure 4. Correlations between biomarkers and collagen crosslinks that differed between diabetes mellitus (DM) and non-DM groups. (a) Bone alkaline phosphatase (BAP) levels in serum were positively correlated to cartilage hydroxylysylpyridinoline (HP) in non-DM group, but negative in DM group. (b) Osteocalcin (OCN) levels in synovial fluid were not correlated to cartilage pentosidine in non-DM group, but were negatively correlated to cartilage pentosidine in DM group. (c) OCN levels in synovial fluid were not correlated to bone pentosidine in non-DM group, but were negatively correlated to bone pentosidine in DM group. Black filled circles represent DM group, and light gray filled circles represent non- DM group. Regression lines are indicated with dashed black line for DM group and solid gray line for non-DM group. Oren TW, Botolin S, Williams A, Bucknell A, King KB. Arthroplasty in veterans: Analysis of cartilage, bone, serum, and synovial fluid reveals differences and similarities in osteoarthritis with and without comorbid diabetes. J Rehabil Res Dev. 2011;48(10):1195–1210.DOI:10.1682/JRRD.2010.09.0186