Protective effect of Ganoderic acid A on adjuvant-induced arthritis.

The purpose of the experiment was to explore the effect of Ganoderic acid A (GAA) on adjuvant-induced arthritis in rats. In this study, the rat model of collagen-induced rheumatoid arthritis (CIA) was established with type II collagen plus Freund's complete adjuvant. Arthritis index, joint pathology, toe swelling, hemorheology, synovial cell apoptosis, related cytokines and JAK3/STAT3 and nuclear factor-κB (NF-κB) signaling pathway were measured in rats. We found that GAA can significantly inhibit the arthritis index, improve joint pathology, reduce toe swelling, improve blood rheology, improve synovial cell apoptosis, and restore related cytokine negative regulation JAK3/STAT3 and NF-κB signaling pathways. In conclusion, GAA has an obvious therapeutic effect on joint inflammation of toes in CIA model rats, which may be due to the regulation of JAK3/STAT3 and NF-κB signaling pathway.