https://www.selleckchem.com/products/5-cholesten-3beta-ol-7-one.html Gastroesophageal reflux disease (GERD) is a disease that stomach contents continually refluxing into esophagus causes symptoms and/or complications. The study was working to find natural plant extracts with good effects and small side effects to treat reflux esophagitis (RE). The anti-inflammatory effects of hexane extract of Magnolia sieboldii (MsHE) were conducted on lipopolysaccharide (LPS)-stimulated RAW 264.7 macrophage cells. The ameliorative effects of MsHE on esophageal damage in rats induced by gastric acid reflux was explored in vivo. The results showed that MsHE decreased the production of nitric oxide (NO) and expression levels of iNOS, COX-2 and TNF-α on LPS-stimulated RAW 264.7 cells and MsHE treatment ameliorated the rats' esophageal tissue damage induced by gastric acid and inhibited the increase of inflammatory mediators and pro-inflammatory cytokines by regulating NF-κB signaling pathway. In addition, MsHE protected the function of barrier of epithelial cells against inflammatory conditions through increasing the expression of tight junctions. Furthermore, liquid chromatography-mass spectrometry analysis was used for determine the active ingredients contained in MsHE. The results show that MsHE can alleviate experimental rat RE by regulating NF-κB signaling pathway. In summary, MsHE may be used as a source material of drug candidate for the treatment of RE. © 2020 John Wiley & Sons, Ltd.Developing efficient electrocatalysts for nitrogen reduction reaction (NRR) at ambient conditions is crucial for NH 3 synthesis. In this manuscript, the NRR performance of the transition metal anchored MoS 2 monolayer with 1T atomic structure (1T-MoS 2 ) is systematically evaluated by density functional theory computations. Our results reveal that the V decorated 1T-MoS 2 exhibits the outstanding catalytic activity toward NRR via distal mechanism where the corresponding onset potential is 0.66 eV,