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Figure 4 | Stem Cell Research & Therapy

Figure 4

From: Platelet-rich plasma preparation for regenerative medicine: optimization and quantification of cytokines and growth factors

Figure 4

Growth factor concentrations secreted after platelet activation. (A) Platelet-derived growth factor (PDGF)-AA, (B) PDGF-AB, (C) PDGF-BB, (D) endothelial growth factor (EGF), (E) transforming growth factor (TGF)-β1, and (F) TGF-β2. *Statistically significant differences from the plasmatic concentration (analysis of variance followed by Dunnett’s multiple comparison test, n = 6, α = 0.05). PPP, platelet-poor plasma; PRP1, platelet-rich plasma after the first blood centrifugation step; PRP2, platelet-rich plasma after the second centrifugation step; PRP2-Ca, calcium-activated PRP2; PRP2-Thr, calcium plus human thrombin-activated PRP2.

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