Cross sections of soleus muscle. (A), (E), (I), and (M) show the localization of glucocorticoid receptor, NFκB, MEF-2, and Myogenin, respectively. In (B), (F), (J), and (N) the nuclei are displayed together with respective transcription factors. In (C), (G), (K), and (O), corresponding images display the type I fibers in red and type II fibers unstained (some marked by arrowheads). The NFκB concentration appears with different intensity among the type II fibers (areas of less intensity are indicated by arrows). The scale bar for A–L is 100 µm and the scale bar for M–P is 50 µm.