Figure 1From: Characterization of synovial angiogenesis in osteoarthritis patients and its modulation by chondroitin sulfateHistological analysis of NR (A) and I (B) biopsies of synovial membrane. At the time of surgery, synovial biopsies coming from NR or I area of synovial membrane were macroscopically selected as described in Materials and methods. Biopsies were fixed, embedded in paraffin and sectioned before staining with HE. → intima linning, ⇒ lymphoid node.Back to article page