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EVALUATION OF ANTI-INFLAMMATORY, ANALGESIC
AND ANTI-ARTHRITIC ACTIVITY OF MAHANARAYANA
TAILAM IN LABORATORY ANIMALS
1 2 1 2 2
S. D. Pawar , S.N. Gaidhani *, T. Anandan , G.S. Lavekar , B.S. Sharma ,
2 2 2
Suman Kumari , M.M. Padhi and Ramesh Babu
Research Officer (Pharmacology) Central Research Institute for Siddha, CHENNAI.
Assistant Director (Pharmacology), CCRAS 61-65, Institutional area, Opposite 'D' block,
JANAKPURI, New Delhi.
The present study was conducted to evaluate the anti-inflammatory,
analgesic and anti-arthritic activities of Mahanarayana tailam (MT) in
laboratory animals.
Carrageenan induced rat paw oedema, Freund's adjuvant induced
arthritis in rats and Eddy's hot plate induced pain in mice were used as
experimental models. MT was applied to the planter surface of the hind paw by
gently rubbing to treatment groups.
The external application of MT, showed significant inhibition of
inflammation (P < 0.01) as compared to control and less than Piroxicam gel
0.5%. Analgesic effect as compared to control was found to be significant
(P<0.01) and almost equal to the standard drug. Anti-arthritis activity of the oil
was observed almost equal to the standard drug used in the study.
Histopathology of ankle joint revealed that Piroxicam as well as MT inhibits the
inflammation in the treated animals. However, mild mononuclear infiltration of
surrounding tissue was observed in the MT treated animals. These observations
suggest that MT may be used to treat inflammation, pain and arthritis.
INTRODUCTION
Rheumatoid arthritis (RA) is a common human autoimmune disease characterized
by chronic inflammation of the synovial membranes with concomitant destruction of
cartilage and bone. It affects approximately 5 million people worldwide of which 50 % are
unable to work beyond 10 years of diagnosis. Anti-inflammatory agents are administrated as
long-term treatments for patients with rheumatoid arthritis. However, anti-inflammatory
agents carry the risk of gastrointestinal toxicity hence, their use are limited. Non-steroidal
anti-inflammatory drugs are commonly used in practices for the treatment of various
inflammatory conditions. It is known that all conventional analgesics and anti-inflammatory
agents produce various adverse effects. In an attempt to avoid adverse gastrointestinal
effects, research is now focusing on Ayurvedic drugs which are devoid of such adverse
effects.
* Corresponding Author
Adv. Pharmacol. Toxicol. Vol. 12 (3) 2011, 33-42
ISSN - 0973-2381