Figure 4.

Effect of QZS on the morphology of triceps surae muscle in sciatic nerve injury rats (hematoxylin-eosin staining).

At each time point, the muscle fibers in the sham group are similar, with polygonal morphology, while the muscle fibers in the NCI and NCI + QZS groups are irregular ovals or round. The areas of muscle fibers in the NCI and NCI + QZS groups appear less than in the sham group at the same timepoint. The area of the muscle fibers in the NCI + QZS group appears to be greater than in the NCI group. In general, the muscle fibers area in the NCI and NCI + QZS groups gradually increased with time. Original magnification, 400×; scale bar: 50 μm. QZS: Qian-Zheng-San.