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. Author manuscript; available in PMC: 2009 Nov 1.
Published in final edited form as: J Hand Surg Am. 2008 Nov;33(9):1548–1557. doi: 10.1016/j.jhsa.2008.05.030

Figure 3. Effect of heparin-based delivery system on cell-mediated release of PDGF-BB.

Figure 3

A) Effect of delivery system on the percentage of PDGF-BB recovered for matrices containing 0.125 μg/mL of PDGF-BB. B) Effect of delivery system on the percentage of PDGF-BB recovered for matrices containing 0.25 μg/mL of PDGF-BB. C) Effect of delivery system on the percentage of PDGF-BB recovered for matrices containing 1.25 μg/mL of PDGF-BB. Fibrin matrices containing HBDS and PDGF-BB were washed with 1 mL of TBS five times for 24 h and then seeded with 50,000 tendon fibroblasts per matrix. The media was collected every 24 h for the following 9 days and the PDGF-BB in the media each day was quantified by ELISA. ‘*’ denotes p<0.05 versus no delivery system at a given time point.