Research Article

Extracorporeal Shockwave Therapy Modulates the Expressions of Proinflammatory Cytokines IL33 and IL17A, and Their Receptors ST2 and IL17RA, within the Articular Cartilage in Early Avascular Necrosis of the Femoral Head in a Rat Model

Figure 4

Immunohistochemical analysis for type II colagen in the articular cartilage of the left femur head (a) and the level of expression was measured after treatment (b). The scale bar was 50 μm. for all groups.
(a)
(b)