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Examples of medium power light microscope images (X100) of broken muscle fiber sections that have undergone ECs from adult and senescent mdx mice. Broken areas have been outlined in red whilst swollen and necrotic areas highlighted yellow in cartoon inserts for each image. (A–D) Are portions of fibers from a 22-month mdx mouse EDL. (E–I) Are portions of fibers from a, 18-month mdx mouse EDL. Scale bar provided at 50 μm in (I) applies to all of figure.
