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https://www.selleckchem.com/products/trc051384.html Asthma is characterized by chronic inflammation of the airway mucosa. As Eucommia ulmoides Oliv. leaf extract (ELE) has been known to have anti-inflammatory properties, herein, we investigated the effect of ELE on interleukin (IL-) 8 production in A549 cells, a human airway epithelial cell line. The addition of ELE 1 h before tumor necrosis factor-alpha (TNFα) stimulation inhibited IL-8 production by A549 cells in a concentration-dependent manner. The addition of geniposidic acid, the main component of ELE, also inhibited IL-8 production. To further investigate the mechanism by which ELE inhibits IL-8 production, the effect of ELE or geniposidic acid on TNFα-stimulated p38 phosphorylation was examined by Western blotting. After 30 min of TNFα stimulation, p38 phosphorylation was inhibited by the addition of ELE or geniposidic acid, suggesting that ELE inhibited IL-8 production in TNFα-stimulated A549 cells by suppressing one of the signal transducers of p38 phosphorylation. These results indicate that ELE can be used as an effective measure against asthma, particularly neutrophilic asthma.A lactic acid bacterial strain, Lactobacillus plantarum SN35N, which has been isolated from the pear, secretes negatively charged acidic exopolysaccharide (EPS) to outside cells. We have previously found that the SN35N-derived acidic EPS inhibits the catalytic activity of hyaluronidase (EC 3.2.1.35) promoting inflammation. The aim of this study is to find other health benefits of EPS. EPS has been found to exhibit an inhibitory effect against the influenza virus (Alphainfluenzavirus Influenza A virus) and feline calicivirus (Vesivirus Feline calicivirus), which is recognized as a model of norovirus. Although more studies on the structure-function relationship of EPSs are needed, SN35N-derived EPS is a promising lead for developing not only anti-inflammatory agents, but also antiviral substances.Renal cell carcinoma (RCC) is the mo

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