Fig. 8

Immunostaining for 5-LO done on 5 μm sagittal sections of rat knee joint with the posterior capsule intact. Sections are from the medial mid-condylar region. a 1 × image of medial femoral condyle, medial tibial plateau and associated posterior capsule of an immobilized animal. Positive 5-LO activity is represented by uptake of brown stain. Bone marrow in femur and tiba represent a good internal control. b, c and d are 4 × images of (a) highlighting the staining in the posterior capsule of an immobilized animal