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. Author manuscript; available in PMC: 2012 Mar 20.
Published in final edited form as: Osteoarthritis Cartilage. 2008 Jan 18;16(8):909–918. doi: 10.1016/j.joca.2007.12.003

Figure 4.

Figure 4

Total nitric oxide production (a), cell proliferation (b) and proteoglycan synthesis (c) by chondrocytes encapsulated in low, medium and high crosslinked hydrogels subjected to dynamic strains at 0.3 Hz (black bars) or 1 Hz (gray bars) with 15% amplitude strains for 48 hours. Cell response was normalized to the unstrained control as a percent change. Data is given by mean ± standard error of mean (n=8); *p<0.05, **p<0.01, ***p<0.001. An asterisk(s) above a column denotes significance from control.