Abstract
Walnut oil (WO) is widely used in traditional medicine, and it has become a dietary supplement in many countries. We isolated walnut oil from Juglans sigillata and evaluated its protective effects on acute intestinal injury, and Toll‐like receptor 4 (TLR4)/nuclear factor‐κB (NF‐κB) signaling pathway in lipopolysaccharide (LPS)‐induced mice was studied. The results showed that the LPS + WO group significantly decreased serum tumor necrosis factor‐α (TNF‐α), interleukin‐6 (IL‐6), and IL‐1β levels and increased the jejunum superoxide dismutase (SOD) and glutathione peroxidase (GSH‐Px) levels compared with the LPS group. Walnut oil ameliorated the pathological morphology of the LPS‐induced acute jejunum injury and decreased jejunum cells apoptosis rate and TLR4/NF‐κB protein expression. Furthermore, the expression of the TLR4/NF‐κB pathway key gene mRNA significantly reduced after treatment with walnut oil. This study concludes that walnut oil can exert the protective effect on LPS‐induced acute intestinal injury in mice by inhibiting the TLR4/NF‐κB signaling pathway.
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