Preprint / Version 1

Evaluation of anti-inflammatory and anti-arthritic property of ethanolic extract of Clitoria ternatea

Authors

  • KP Swathi aDepartment of Pharmacology, KMCH College of Pharmacy, Tamil Nadu Dr. M. G. R. Medical University, Coimbatore 641048, India
  • Saravanan Jayaram bDepartment of Pharmacology, JSS College of Pharmacy, JSS Academy of Higher Education and Research, Ooty 643001, India
  • Deepa Sugumar bDepartment of Pharmacology, JSS College of Pharmacy, JSS Academy of Higher Education and Research, Ooty 643001, India
  • Emdormi Rymbai bDepartment of Pharmacology, JSS College of Pharmacy, JSS Academy of Higher Education and Research, Ooty 643001, India

Keywords:

antioxidants, Clitoria ternatea Linn., inflammation, rheumatoid arthritis

Abstract

Objective Clitoria ternatea is a well-known bioactive plant used to treat several inflammatory ailments in Ayurvedic system of medicine in India. The present investigation aimed to determine the anti-inflammatory and anti-arthritic activity of ethanolic extract of Clitoria ternatea roots (EECT) in animal models. Methods The anti-inflammatory activity of the EECT was evaluated by carrageenan and histamine-induced paw edema. Results EECT showed a significant reduction in mean paw edema volume in both carrageenan and histamine-induced inflammation. The efficacy of EECT in rheumatoid arthritis was tested against Freund’s complete adjuvant (CFA) induced arthritic model in Wistar rats. The anti-arthritic effect of EECT was determined by systematic scoring of arthritis symptoms and measuring paw edema. A considerable decrease in paw diameter was observed in the EECT (200 and 400 mg/kg) and diclofenac (10 mg/kg) treated groups after day 7. Diclofenac (10 mg/kg) and EECT (400 mg/kg) showed a significant reduction in paw diameter from day 14 compared with CFA control (P < 0.001). The anti-arthritic activity was also confirmed from the altered biochemical, haematological (Hb, RBC and WBC) and anti-oxidant parameters (SOD, MDA, CAT, and GSH). EECT (400 and 200 mg/kg) also showed a marked inhibition of joint destruction. Conclusion This study provides a pharmacological rationale for the traditional use of C. ternatea against inflammation and rheumatoid arthritis in India. Keywords: antioxidants, Clitoria ternatea Linn., inflammation, rheumatoid arthritis

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