Abstract
Objective: Rheumatoid arthritis is a chronic multi-system disease of unknown cause. It affects people in their prime of life, predominantly between the ages of 20 and 50 years with an unpredictable course. The present study was to evaluate the anti-arthritic activity of ethanolic extract of Commiphora caudata leaves in complete Freund's adjuvant (CFA)-induced arthritic rats. Materials and Methods: Arthritis was induced by sub-cutaneous injection of 0.1 ml of CFA in rats. Arthritic arts were divided into different groups and ethanolic extract of C. caudata leaves (EECCL) was administered at doses of 200 and 400 mg/kg, p.o for 28 days. The control group received Tween 20 for 28 days. Dexamethasone (1 mg/kg, i.p) was used as a standard drug. Paw volumes were recorded on 7, 14, 21 and 28 day using a plethysmometer. Blood samples were collected at the end of the experiment from all the groups to analyze the serological rheumatic factors: C-reactive protein (CRP), serum rheumatic factor (SRF) and hematological parameters. EECCL was also tested for protein denaturation and membrane stabilization activities. Statistical Analysis: All data were expressed as mean ± SEM. One-way ANOVA followed by Dunnett's test was used to compare the mean values of test groups and control. Results: The EECCL (200 and 400 mg/kg, p.o) showed significant (P < 0.01, P < 0.001) reduction in paw volume, change in body weight in CFA rats at 28 day when compared with arthritic control rats. In addition, EECCL with dose 400 mg/kg, p.o significantly (P < 0.05, P < 0.001) increase the red blood cells, hemoglobin and above the 400 mg/kg dose significantly (P < 0.001) decrease the white blood cells, erythrocyte sedimentation rate, SRF and CRP when compared with arthritic control rats. Conclusion : The results obtained from the present study revealed the potential anti-arthritic activity of ethanolic extract from the leaves of C. caudata.
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