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. 2017 Oct 18;14(6):5881–5888. doi: 10.3892/etm.2017.5327

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Copyright: © Ji et al.

This is an open access article distributed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non-commercial and no modifications or adaptations are made.

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Figure 7. — Changes in the expression level of PCNA, p16 and p21. (A) Western blot analysis of the level of PCNA, p16 and p21. Equal protein loading was verified by measurement of GAPDH level. (B) The relative expression level of PCNA, p16 and p21 were indicated by qPCR. *P<0.05, **P<0.01 vs. young control group, ^#P<0.05 vs. naturally aging group. PCNA, proliferating cell nuclear antigen.