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Polydatin is a natural extract used in traditional Chinese medicine, which leads to a marked improvement in the microcirculation perfusion and enhances the animal myocardial contraction force. The present study aimed to determine whether an effective treatment of polydatin ameliorates the symptoms of collagen‑induced arthritis (CIA), and also to explore the potential mechanism. Male DBA/1J mice were induced into CIA model mice. The administration of polydatin effectively suppressed CIA in mice. The serum levels of malondialdehyde (MDA), superoxide dismutase (SOD), tumor necrosis factor‑α (TNF‑α) and interleukin 1β (IL‑1β) were effectively increased following the induction of CIA in the model mice compared with the control group. The elevated serum levels of MDA, SOD, TNF‑α and IL‑1β were markedly suppressed by the effective treatment of polydatin in CIA mice, compared with the CIA model group. However, an increase in the level of matrix metalloproteinase‑9 (MMP‑9) was markedly induced in the CIA mice compared with the control group. As compared with the CIA group, the expression of MMP‑9 was substantially reduced by the effective treatment of polydatin. Taken together, the effective treatment of polydatin ameliorated the symptoms of CIA through an exertion of its antioxidative and anti‑inflammatory effects, and also via activation of the expression of matrix metalloproteinase-9 (MMP-9) in mice.

molecular medicine reports

Effective treatment of polydatin weakens the symptoms of collagen-induced arthritis in mice through its anti-oxidative and anti-inflammatory effects and the activation of MMP-9