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. Author manuscript; available in PMC: 2013 Sep 1.
Published in final edited form as: Biotechnol Bioeng. 2012 Apr 8;109(9):2357–2368. doi: 10.1002/bit.24488

Figure 4.

Figure 4

ECM production normalized to DNA content and dry weight of each sample treated with TGF-β1 (white bars), FGF-2 (grey bars), and FGF-2/TGF-β1 (black bars) for the first week, then TGF-β1 for all groups. A: GAG production normalized to DNA content (μg/μg). B: GAG production normalized to dry weight (μg/mg). C: Soluble collagen type II production normalized to DNA content (μg/μg). D: Soluble collagen type II production normalized to dry weight (μg/g). Asterisks indicate statistical significance between assigned groups (* p < 0.05; ** p < 0.01) (n = 3).