Abstract
The alcoholic extract 70% of the leaves of Withania Somnifera was dried and percentage of extract 8.3 were used.Incomplete freunds adjuvant was used to induce arthritis in mice 0.1ml of this adjuvant was injected in the right tarsal joint. The mice were divided into four groups, the first group were treated with alcoholic extract 500mg/kg body weight (T1), the second group was treated with diclofenac sodium 3mg/kg body weight (T2) and third group was treated with distilled water (T3), the fourth group used as a control group (T4) non induced non treated.Vernier calipers was used for measuring the diameter of the joint. The mice in T1group showed a significant decrease in the diameter of tarsal joint of right leg as compared with mice in T2, T3 and T4 groups. The hematological results of mice in T1 group showed significant increase as compared with T4 group. While inT2 and T3 groups showed a significant decrease as compared with T4 group .The histological results showed that the joint of mice in T1 group showed no inflammatory response in the membrane of joint. The joint of mice in T2 group showed inflammatory cell infiltration while the joint of mice in T3 group showed fibrous connective tissue proliferation with mononuclear cell infiltration in the membrane of the joint .
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