Metabolomic Analysis Reveals That the Mechanism of Astaxanthin Improves the Osteogenic Differentiation Potential in Bone Marrow Mesenchymal Stem Cells

Figure 6

PCA, PLS-DA, and OPLSDA of AST1, AST10, and control group cells. (a–c) Positive ion mode: AST1 vs. control; (a1–c1) negative ion mode: AST1 vs. control; (d–f) positive ion mode: AST10 vs. control; (d1–f1) negative ion mode: AST10 vs. control; (g–i) positive ion mode: AST10 vs. AST1; (g1–i1) negative ion mode: AST10 vs. AST1. ★ represents control samples, ● represents AST-1 μg/ml samples, and ■ represents AST-10 μg/ml samples.

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