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. 2012 Jun 13;7(6):e39124. doi: 10.1371/journal.pone.0039124

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Thériault 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) Vastus lateralis muscle cryosections were labeled for co-expression and localization of nuclear Paired box transcription factor 7 (green), DAPI (blue) and laminin (red). Cells positive for pax7 or NCAM (not shown) and DAPI located between the plasmalemma and the basal lamina were counted as satellite cells (white arrow). The number of satellite cells is expressed over 100 fibres and reported as a ratio. Ratio are calculated from 9 COPD and MTCSA >70 cm², 7 COPD and MTCSA <70 cm² and 7 healthy subjects. B) The numbers of nuclei having a positive label for Pax7 (white) and NCAM (black) were counted as satellite cells. Cells positive for pax7 or NCAM and DAPI located between the plasmalemma and the basal lamina were counted as satellite cells. The number of satellite cells is expressed over 100 fibres and reported as a ratio; ANOVA; p>0.05.