707985.fig.005a
(a)
707985.fig.005b
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707985.fig.005c
(c)
Figure 5: Photomicrographs of the immunostaining for iNOS in the TMJ and periarticular tissues of zymosan-induced TMJ arthritis in rats. (a) Negative control (sections in the absence of anti-iNOS antibody) of arthritic rats (100x). (b) Normal rat TMJ showing light immunostaining for iNOS (100x). (c) TMJ arthritis induced by zymosan 2 mg showing strong immunostaining for iNOS in chondrocytes and synoviocytes (100x).