Research Article

Amelioration of Rheumatoid Arthritis by Anacardium occidentale via Inhibition of Collagenase and Lysosomal Enzymes

Figure 3

(a) Treatment with A. occidentale significantly reduced the histopathological score. The data is presented as mean ± SD for n = 6. indicating significant difference compared to control group, while (), (), and indicate significant difference compared to arthritic group. (b) H&E staining, showing normal ankle joint tissue, normal synovium, cartilage, bone, and no inflammation (control group); severe inflammation, pannus, and bony erosion (arthritic group); resolution of inflammation, pannus formation, and bony erosion (low-dose and high-dose AO group); and resolution of inflammation, pannus formation, and bony erosion (piroxicam group).
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