Does Platelet-Rich Plasma Freeze-Thawing Influence Growth Factor Release and Their Effects on Chondrocytes and Synoviocytes?

Figure 1

RT-PCR analysis: messenger RNAs expression in chondrocytes grown in presence of 10% fresh or frozen PRP at 7 days. Data were normalized to GAPDH and expressed as a percentage of the reference gene. Boxes indicate the 25% and 75% percentiles, whiskers indicate the minimum to maximum values, and bars indicate the median.