Cissus quadrangularis attenuates the adjuvant induced arthritis by down regulating pro-inflammatory cytokine and inhibiting angiogenesis
Abstract
In traditional medicine, Cissus quadrangularis has been used as a chief ingredient of many formulation for the treatment of inflammatory and bone disorders.. The study was carried out to investigate the anti-arthritic activity of C. quadrangularis hydroalcoholic extract (CQHE) and to explore the plausible mechanism of action. Arthritis was induced by sub plantar administration of formaldehyde (2% v/v) and 0.1ml of complete Freund's adjuvant. Joint swelling was measured on days 8, 9 and 10 in formaldehyde-induced arthritis and on 3, 7, 14 and 21 days in adjuvant induced arthritis (AIA) respectively. Serum and ankle joints of AIA rats were used for estimation of serum TNF-α level, oxidative stress markers and synovial expression of proinflammatory cytokines/cytokine receptor (IL-1β, IL-6, TNF-R1), angiogenesis marker (VEGF) and matrix metalloproteinases (MMP-3& 9). An acute and 28-day oral toxicity was carried out to evaluate the safety of the test drug. CQHE produced a dose dependent inhibition of joint swelling in both formaldehyde-induced and adjuvant induced arthritis. CQHE treatment also reduced serum TNF-α level, oxidative stress and synovial expression of inflammatory and angiogenesis marker. In sub acute toxicity study of...Continue Reading
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