Case Report
Copyright ©The Author(s) 2021.
World J Clin Cases. Mar 6, 2021; 9(7): 1748-1754
Published online Mar 6, 2021. doi: 10.12998/wjcc.v9.i7.1748
Figure 5
Figure 5 Biopsy of the left biceps brachia (100 ×). A: Hematoxylin and eosin staining: muscle fiber size differed with a dominant type I muscle fiber atrophy; B: Adenosine triphosphate staining (pH, 4.3): type I muscle fiber enzyme activity was well preserved and seen as dark stains; unstained Type II muscle fiber demonstrated a loss of enzyme activity; C: Adenosine triphosphate staining (pH, 10.4): Enzyme activity of type I muscle fiber was partially lost, which can be seen as light stains; type II muscle fiber enzyme activity was well preserved and can be seen as dark stains. Panel A, B, C revealed that the diameters of type I muscle fibers were < type II muscle fibers.