Formation process of extension knee joint contracture following external immobilization in rats

Figure 7 Western blot findings. A: Changes in the intensity of transforming growth factor beta 1 (TGF-β1) and glyceraldehyde 3-phosphate dehydrogenase (GAPDH) bands in the anterior joint capsule; B: Changes in the intensity of TGF-β1/GAPDH, phosphorylated mothers against decapentaplegic homolog 2 (p-Smad2)/Smad2, p-Smad2/Smad2 bands in the quadriceps; C: Graphical representation of the expression level of TGF-β1 in the anterior joint capsule relative to GAPDH; D-F: Graphical representation of the expression level of TGF-β1/GAPDH, p-Smad2/Smad2, p-Smad2/Smad2. ^aP < 0.05; ^bP < 0.01; ^cP < 0.001; ^dP < 0.0001.