Figure 2
Tissue morphology, cell survival and programmed cell death in periarticular tissue. Representative images are shown for (A, D, G) fibrotic (B, E, H), fibrocartilage with calcification (C, F, I) and vascular regions. Tissues were stained (A-C) with hematoxylin and eosin and alcian blue (insets enlarged 100%), (D-F) Bcl-2 and terminal dUTP nick end labeling (TUNEL); (G-I) green apoptotic cells and 4',6-diamidino-2-phenylindole(DAPI)-stained blue stained nuclei. Scale bar = 100 μm.