Alternations of Metabolic Profiles in Synovial Fluids and the Correlation with T2 Relaxation Times of Cartilage and Meniscus—A Study on Anterior Cruciate Ligament- (ACL-) Injured Rabbit Knees at Early Stage

Figure 2

Metabolomic analysis and identification of differential metabolites. PCA and PLS-DA plots indicating clear differences in metabolic profiles between the ACL injury group (Ad, red triangle and red ellipse) and the control group (Nd, green diamond and green ellipse) (a, b). A volcano plot showing the distribution of all and differential metabolites based on their fold-change values (x-axis, on a logarithmic scale) and p-values (y-axis, on a logarithmic scale) (c).

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