Traditional Chinese Medicine Aconiti Radix Cocta Improves Rheumatoid Arthritis via Suppressing COX-1 and COX-2

Figure 5

Histopathology of the right hind knee joint in each group (x 200, scale bars = 100 μm). (a) Control; (b) AIA; (c) MTX; (d) AC (150 mg/kg); (e) AC (300 mg/kg); (f) AC (600 mg/kg).

(a)

(b)

(c)

(d)

(e)

(f)