Effect of 18 Gy Irradiation on Pax7 Cell Density in Limb and Extraocular Muscles from Wild Type and <i>Het</i> Mice.

<p>A. Cross-section of non-irradiated <i>het</i> leg muscle immunostained for Pax7-positive cells, indicated by black and white arrows. B. Cross-section of <i>het</i> leg muscle 7 days after 18 Gy irradiation and immunostained for the presence of Pax7-positive cells. No positive cells can be seen. C. Cross-section of non-irradiated <i>het</i> EOM immunostained for the presence of Pax7-positive cells, an example indicated by white arrow. D. Cross-section of <i>het</i> EOM 7 days 7 days after 18 Gy irradiation and immunostained for the presence of Pax7-positive cells. All the black nuclei are Pax7-positive cells. Bar is 20 µm. E. Effect of 18 Gy irradiation on Pax7-positive cell density in leg muscle *indicates significant difference from non-irradiated WT control and non-irradiated <i>het</i> control. F. Effect of 18 Gy irradiation on Pax7-positive cell density in EOM from WT and <i>het</i> mice. *indicates significant difference from non-irradiated WT control and non-irradiated <i>het</i> control. <b>#</b> indicates significant difference from non-irradiated WT orbital control.