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Periodic acid-Schiff stained cross-sections of the quadriceps muscle. (a). Control rats at day 28. The diversity of muscle fibers results in different PAS staining (PAS intensity staining + and +++). (b). Control rats at day 42. Loss of muscle fibers diversity results in monotonous PAS staining (PAS intensity staining +). BPC 157 rats at day 28 (c) and day 42 (d). The diversity of muscle fibers results in different PAS staining (PAS intensity staining + and +++). Magnification ×200.
