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Figure 3 | Arthritis Research & Therapy

Figure 3

From: Osteogenic protein 1 in synovial fluid from patients with rheumatoid arthritis or osteoarthritis: relationship with disease and levels of hyaluronan and antigenic keratan sulfate

Figure 3

Content of osteogenic protein 1 protein in synovial fluid samples. The osteogenic protein 1 (OP-1) content of synovial fluid from asymptomatic donors (donor) and from osteoarthritis (OA) and rheumatoid arthritis (RA) patients detected by an OP-1 sandwich ELISA [19]. The data are presented as the mean ± standard error of the mean.

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