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. 2013 Aug 14;20(1):59. doi: 10.1186/1423-0127-20-59

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Copyright © 2013 Ding et al.; licensee BioMed Central Ltd.

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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No difference of senescence-associated β-Gal activity and telomere length in ASC derived from different age groups. Representative pictures (A) and the quantitative measurement (B) of senescence-associated (SA) β-Gal staining in ASC derived from three age groups (n = 5 each) at two different passages are showed. *P < 0.05. (C) Relative lengths of telomere, as expressed as telomere/single-copy-gene (T/S) ratios, are showed (n = 10 each in 30-39 y and 40-49 y groups, n = 7 in 50-60 y group).