Figure 2.

Photomicrographs of sections in ankles of rats from normal group (A and B), arthritic control (C and D) and arthritic groups treated with NOPEE (E and F) and NAR (G and H) at the end of the 1^st week showing articulating cartilage (AC), synovial cavity (SyC), sponge bone (SB), bone marrow (BM), skeletal muscle (SkM), synovial hyperplasia (SyH), pannus formation (Pa), and eroded articulating cartilage (EAC). CFA, complete Freund’s adjuvant; NOPEE, navel orange peel ethanolic extract; NAR, naringin.