Figure 2. Cellular proliferation after treatment with PRP supernatants from five donors. (A) HUVEC proliferation rates. (B) hFOB 1.19 osteoblast proliferation rates. PRP supernatants (10% v/v) were added to minimal medium. Conditions A, B, and C are described in Fig. 1. All assays were performed in triplicate, and each column represents the mean ± SEM of five donors.