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. 2017 Mar 30;5(3):295–302. doi: 10.1002/mgg3.280

Figure 3.

Figure 3

Histologic findings. Note a few fibers with internal nuclei and a regenerating fiber (arrow) (A); scattered fibers display irregularly circumscribed attenuations of oxidative enzyme activity (B); type 1 fibers have a smaller mean diameter than type 2 fibers and all atrophic fibers are type 1 (C). Section (A) is stained with hematoxylin and eosin, section (B) with NADH dehydrogenase, and section (C) is reacted for ATPase at pH = 4.3. Bars = 20 μm in (A), 50 μm in (B), and 100 μm in (C).