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. Author manuscript; available in PMC: 2023 Oct 1.
Published in final edited form as: J Orthop Res. 2022 Mar 14;40(12):2792–2802. doi: 10.1002/jor.25310

Figure 5.

Figure 5

Correlations between synovial fluid and serum metabolites. Metabolite intensities were analyzed for correlations between serum and synovial fluid. (A) Cumulative probability plot of metabolite correlation coefficients. About 10% of co-detected metabolites have significant correlations (p<0.05). (B) Metabolite with putative identification of NADPH had a positive correlation between synovial fluid and serum. (C) Metabolite with putative database match for a steroid hormone including DHEA, testosterone, and androstenedione was positively correlated. (D) Metabolite with putative match representing the GAG monomers of N-acetyl-D-glucosamine and N-acetyl-D-galactosamine was negatively correlated.