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

Figure 3

Hyaluronan levels in the culture media of human chondrocytes grown in presence of 10% fresh or frozen PRP at 7 days. Mean values are expressed as ng/mL, boxes indicate the 25% and 75% percentiles, whiskers indicate the minimum to maximum values, and bars indicate the median.