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Current Topics in Nutraceutical Research

Current Topics in Nutraceutical Research

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Dihydromyricetin Prevents Inflammation and Oxidative Stress in Human Osteoarthritis Chondrocytes

Published:1 September 2021 DOI: 10.37290/ctnr2641-452x.20:207-212
P. Yao,?Jinwei Ai

Abstract

Osteoarthritis is characterized by inflammation and joint cartilage degradation. Dihydromyricetin, a natural flavonoid in rattan tea, exhibits several pharmacological properties including antitumor, cardioprotection, antidiabetes, neuroprotection, hepatoprotection, and dermatoprotection. Herein, we have investigated in vitro the effects of dihydromyricetin on osteoarthritis progression using an interleukin-1β-induced cell model. Our data show that dihydromyricetin markedly improved the viability of interleukin-1β-treated chondrocytes. Furthermore, dihydromyricetin markedly downregulated the expression of nitric oxide, prostaglandin-E2, tumor necrosis factor-α, and interleukin-6, and ameliorated cartilage destruction in interleukin- 1β-treated chondrocytes, as well as inhibited the interleukin-1β-induced oxidative stress via the nuclear factor kappa B axis. In summary, our results demonstrate therapeutic potential of dihydromyricetin in osteoarthritis through modulation of the nuclear factor kappa B signaling pathway.

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