Additional file 2.

RANKL and OPG protein expression. A, C and E, Densitometric analysis of receptor activator nuclear kappa B ligand (RANKL) and osteoprotegerin (OPG) protein expression in cartilage (A), subchondral bone (C) and synovium (E). Bars show the mean and SEM (n = 7 to 9 rabbits per group). B, D and F, Representative Western blot images for RANKL and OPG detection in cartilage (B), subchondral bone (C) and synovium (F). EZ Blue-stained gels used as protein loading controls are also shown for healthy rabbits, high fat diet (HFD) rabbits, chronic antigen induced arthritis (AIA) rabbits and HFD + AIA rabbits.

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Prieto-Potín et al. Arthritis Research & Therapy 2013 15:R81   doi:10.1186/ar4261