Omega3 Fatty Acids Intake Versus Diclofenac in Osteoarthritis Induced in Experimental rats

Mohammed M. El-Seweidy, Sousou I. Ali, Sahar E. Elsweify, Abdelmoneim A. Ali, Mai M. Mashhour

Abstract


Background: Osteoarthritis (OA) is a degenerative joint disease, characterized by abnormal remodeling pattern of joints driven by inflammatory mediators within the affected joints. Its symptoms are many like pain, stiffness, and decreased function.

Objective:  The present study mainly focused on the anti-inflammatory effect of omega 3 fatty acids (F.As) versus diclofenac, non-steroidal anti-inflammatory drug in OA induced in rats

Design: Intraarticular injection of monosodiumiodoacetate (MIA) 24.6 mg/kg in 0.6 ml saline was used to induce OA. Diclofenacand omega-3 F. These were administered orally, daily for 21 days and after 24 hours of OA induction.

Results: Osteoarthritis induction resulted in an increase in serum levels of IL-6 (479.5%), TNF-a(545.5%), and CRP (754.2%) along with IL-10 level decrease (70.3%) as compared to normal group. Diclofenac intake demonstrated significant increase of IL-6 (24.9%), CRP (88.6%), and TNF-a (25.2%) compared to the OA control group. Omega 3 FAs intake showed significant reduction in inflammatory markers along with IL-10 increase, in comparison to OA group. Both treatment demonstrated a significant increase in TIMP2 along with decreased MMP2 and MPO in comparison with OA control. Positive correlation of IL-6 with MPO (r = 0.7, P=0.002), and negative one with IL-10 (r = 0.9, p<0.0001) and TIMP2 (r = -0.5, p<0.008) was observed. Interleukin-10 was negatively correlated with MMP2 (r = - 0.5, p<0.007) and MPO (r = -0.8, p<0.0001).

Conclusion: Data derived from biochemical and histopathological results, indicated that omega3 FAs may be expressed as a natural anti-inflammatory agent of a significant potential in OA with evident remarkable effect.

Keywords: OA; omega3FAs; diclofenac; MMP2; TIMP2; MPO


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