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Photomicrographs of periodontal tissue of rats on EPD and treated with venlafaxine showing the immunoreactivity to TNF-α (A-F) and iNOS (G-L). (A,D,G,J) SO: sham operated rats; (B,E,H,K) rats subjected to EPD; (C,F,I,L) rats subjected to EPD and treated with venlafaxine (10 mg/kg). A,B,C,G,H,I -100 ×, bar scale = 100 μm); D,E,F,J,K,L - 400 ×, bar scale = 50 μm). polpa (p) gingival (g), periodontal ligament (pl) and dentina (d).
