Figure 5From: Serum keratan sulfate transiently increases in the early stage of osteoarthritis during strenuous running of rats: protective effect of intraarticular hyaluronan injectionImmunohistochemical analyses. Representative histologies of the lateral femoral condyle and the lateral tibial plateau immunostained with (a) keratan sulfate (KS) and (b) type II collagen (COL2). Scale bar = 200 μm.Back to article page