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Evaluation of antinociceptive and antirheumatic activity of Grangea maderaspatana (L.) Poir. using experimental
Raxit P Rachchh1, Varsha J Galani1
1Department of Pharmacology, A.R. College of Pharmacy and G.H. Patel Institute of Pharmacy, Vallabh Vidyanagar, Gujarat, India.
Introduction:
Grangea maderaspatana (L.) Poir. (Asteraceae), a popular Indian medicinal plant is traditionally used for rheumatism in the knee joint and pain in the muscles.
Aim:
To investigate antinociceptive and antirheumatic activity of G. maderaspatana (L.) Poir. using experimental models.
Materials And Methods:
Antinociceptive activity of methanolic extract of G. maderaspatana (L.) Poir. (GMME) (500 mg/kg, 1000 mg/kg, p.o.) was evaluated in rats using tail flick test. Anti-inflammatory and anti-arthritic activity of GMME (1000 mg/kg, p.o.) was evaluated using carrageenan-induced rat paw edema and complete Freund's adjuvant (CFA)- induced arthritis models. The degree of arthritis was evaluated by hind paw swelling, body weight changes, arthritic index, erythrocyte sedimentation rate (ESR), rheumatoid factor (RF), and C-reactive protein (CRP) supported by histopathology of ankle joints.
Results:
GMME treatment showed a significant increase in the latency for tail flick and provided significant protection against carrageenan-induced rat paw edema. 21 days treatment of GMME significantly inhibited paw edema found to be induced by arthritis by CFA in rats. Further, GMME treatment also reversed arthritic index and loss of body weight and reduced CFA-induced rise of ESR, RF, and CRP significantly in rats. Histopathological study of ankle joint revealed that GMME inhibited edema formation and cellular infiltration induced by CFA.
Conclusions:
GMME possesses antinociceptive, anti-inflammatory, and antirheumatic activities.
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