1. Assessment of the utility of biomarkers of osteoarthritis in the guinea pig 
J.L. Huebner, M.S., V.B. Kraus, M.D., Ph.D. 
Osteoarthritis and Cartilage 
Volume 14, Issue 9, Pages (September 2006)
DOI: /j.joca
Copyright © 2006 OsteoArthritis Research Society International Terms and Conditions

2. Fig. 1
Histological progression of OA from 4 to 12 months of age in the Hartley guinea pig. The dashed line represents the mean total histological score of the 12-month-old Strain 13 guinea pigs.
Osteoarthritis and Cartilage  , DOI: ( /j.joca )
Copyright © 2006 OsteoArthritis Research Society International Terms and Conditions

3. Fig. 2
Synovial fluid concentrations of KS and COMP in the Hartley strain from 4 to 12 months of age (A and C) and in Hartley (H) and Strain 13 (S) guinea pigs at 2 and 12 months of age (B and D). The asterisk (*) denotes a P-value <0.05 compared to the age-matched Strain 13. The data for KS in (B) have been previously reported4 but are included here to enhance the interpretation of the data as a whole.
Osteoarthritis and Cartilage  , DOI: ( /j.joca )
Copyright © 2006 OsteoArthritis Research Society International Terms and Conditions

4. Fig. 3
Serum concentrations of C2C (A and B), CPII (C and D) and C2C/CPII (E and F) in the Hartley strain from 4 to 12 months of age (A, C, and E) and in Hartley (H) and Strain 13 (S) guinea pigs at 2 and 12 months of age (B, D, and F). The asterisk (*) denotes a P-value <0.05 compared to the age-matched Strain 13.
Osteoarthritis and Cartilage  , DOI: ( /j.joca )
Copyright © 2006 OsteoArthritis Research Society International Terms and Conditions