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Article Publish Status: FREE
Abstract Title:

Ginsenoside Rbinhibits monoiodoacetate-induced osteoarthritis in postmenopausal rats through prevention of cartilage degradation.

Abstract Source:

J Ginseng Res. 2021 Mar ;45(2):287-294. Epub 2020 Jan 21. PMID: 33841009

Abstract Author(s):

Adithan Aravinthan, Mohammad Amjad Hossain, Bumseok Kim, Chang-Won Kang, Nam Soo Kim, Ki-Chul Hwang, Jong-Hoon Kim

Article Affiliation:

Adithan Aravinthan

Abstract:

Background: Ginsenoside Rb1 (G-Rb1), one of the major active compounds in, has already been shown to reduce inflammation in various diseases. Osteoarthritis (OA) has traditionally been considered a degenerative disease with degradation of joint articular cartilage. However, recent studies have shown the association of inflammation with OA. In the present study, we investigated whether Rb1 had an antiinflammatory effect on monoiodoacetate (MIA)-induced OA in ovariectomized rats as a model of postmenopausal arthritis.

Methods: G-Rb1 at a dosage of 3 and 10μg/kg body weight was administered every 3 days intraarticularly for a period of 4 weeks to observe antiarthritic effects. Diclofenac (10 mg/kg) served as a positive control.

Results: The administration of Rb1 significantly ameliorated OA inflammatory symptoms and reduced serum levels of inflammatory cytokines. Furthermore, G-Rb1 administration considerably enhanced the expression of bone morphogenetic protein-2 and collagen 2A and reduced the levels of matrix metalloproteinase-13 genes, indicating a chondroprotective effect of G-Rb1. G-Rb1 also significantly reduced the expression of several inflammatory cytokines/chemokines (interferon gamma (IFN-γ), monocyte chemoattractant protein-1 (MCP-1)/CCL-2, interleukin [IL]-1β, and IL-6). Histological analysis demonstrated that G-Rb1 significantly attenuated the pathological changes in MIA-induced OA in ovariectomized rats. Safranin O and toluidine blue staining further demonstrated that G-Rb1 effectively prevented the degradation of cartilage and glycosaminoglycans, respectively.

Conclusion: Overall, our results suggest that G-Rb1 exerts cartilage protective effect on MIA-induced ovariectomized OA rats, by inhibiting inflammatory mediators such as IL-6, IL-1β, MCP-1/CCL-2, cyclooxygenase-2 (COX-2), and prostaglandin E(PGE2). These results shed a light on possible therapeutic application of G-Rb1 in OA.

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