Effect of HP-R1, HP-R2 and HP-R3 on the levels of TNF-alpha (A) and IL-4 (B) in serum. Serum of rats was collected on day 28 after FCA injection and measured with ELISA kits. Data are presented as mean ± SEM, n = 9 rats per group. **P < 0.01 when compared to control group, #P < 0.05, ##P < 0.01 when compared to AA group.
Shi et al. BMC Musculoskeletal Disorders 2014 15:253 doi:10.1186/1471-2474-15-253