Figure 2From: Post-translational aging of proteins in osteoarthritic cartilage and synovial fluid as measured by isomerized aspartateAge relationship of isomerized aspartate (IsoAsp) levels in cartilage extracts. (a) IsoAsp levels in cartilage extracts of non-osteoarthritis (non-OA) trauma cartilages. (b) IsoAsp levels in cartilage extracts from non-lesioned OA areas. (c) IsoAsp levels in cartilage extracts from OA lesion areas. NS, not significant.Back to article page