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. 2013 Sep 13;8(9):e74468. doi: 10.1371/journal.pone.0074468

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© 2013 Jiang et al

This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited.

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(A) Bands of the expression of pERK1/2 and its own tERk1/2 protein were detected by western blot. (B) The ratio value of pERK1/2 to its own tERK1/2 of the bands which was evaluated densitometrically using the software Quantity One for the three groups at different time points. Each bar represents mean ± SD of the ratio value in every group. S: sham group; C: control (saline) group; M: MSCs group. 4d and 7d represent 4 days and 7 days postoperatively. *: P<0.05, compared with control (saline) group, by one-way ANOVA test.