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. Author manuscript; available in PMC: 2012 Aug 27.
Published in final edited form as: Biomaterials. 2012 Mar 13;33(16):4022–4030. doi: 10.1016/j.biomaterials.2012.02.048

Figure 5.

Figure 5

Etched scaffolds induced hBMSC osteocalcin expression. At various time points, the matrix that formed on the scaffolds was assayed for osteocalcin protein using ELISA. Error bars are S.D. (n = 4). Asterisks indicate significant differences between un-etched and etched scaffolds for 1 d, 7 d and 62 d (t-test, P < 0.05). Osteocalcin did not change significantly over time for un-etched [one-way analysis of variance (ANOVA) with Tukey’s test, P > 0.05]. Osteocalcin changed significantly over time for etched scaffolds and 62 d was significantly higher than 1 d, 7 d and 21 d (ANOVA with Tukey’s test, P < 0.05).