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RISS 인기검색어
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- 저자 : ( Caiping Yan ) (검색결과 2 건)
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Yan Bao,Lu Gao,Caiping Feng,Jianzhong Ma,Wenbo Zhang,Chao Liu,Demetra Simion 한국공업화학회 2020 Journal of Industrial and Engineering Chemistry Vol.82 No.-
In this study,flower-like ZnO assembled by hollow cones (F-ZnO-HCs) were synthesized viasonochemical route and the related morphology and structure of product were characterized. Then,F-ZnO-HCs nanostructures were employed to polyacrylate and the effect of F-ZnO-HCs on the propertiesof waterbornefilms was investigated. Meanwhile, the morphological evolution of F-ZnO-HCs wasproposed and the superiority of F-ZnO-HCs on synchronously improving the water resistance and watervapor permeability of polyacrylatefilm was discussed. The results showed that F-ZnO-HCs possessed anaverage diameter of800 nm and a large specific surface area of 16.01 m2 g 1. Adjusting the watercontent and citric acid dosage, the morphology of ZnO transformed from F-ZnO-HCs to ZnOnanoparticles, F-ZnO-NSs, F-ZnO-SCs and F-ZnO-NRs. F-ZnO-HCs nanostructures asfillers not onlysignificantly enhance the stability of polyacrylate latex but also simultaneously improve the water vaporpermeability and water resistance of polyacrylatefilm. Moreover, compared with other morphologicalZnO, F-ZnO-HCs was the best for simultaneously improving the water resistance and water vaporpermeability of polyacrylatefilm. F-ZnO-HCs is an ideal candidate for resolving the contradiction of thewater resistance and water vapor permeability of waterbornefilms.
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Marein Prevented LPS-Induced Osteoclastogenesis by Regulating the NF-κB Pathway In Vitro
( Yuling Li ),( Jing Zhang ),( Caiping Yan ),( Qian Chen ),( Chao Xiang ),( Qingyan Zhang ),( Xingkuan Wang ),( Ke Jiang ) 한국미생물생명공학회 2022 Journal of microbiology and biotechnology Vol.32 No.2
Many bone diseases such as osteolysis, osteomyelitis, and septic arthritis are caused by gramnegative bacterial infection, and lipopolysaccharide (LPS), a bacterial product, plays an essential role in this process. Drugs that inhibit LPS-induced osteoclastogenesis are urgently needed to prevent bone destruction in infective bone diseases. Marein, a major bioactive compound of Coreopsis tinctoria, possesses anti-oxidative, anti-inflammatory, anti-hypertensive, antihyperlipidemic, and anti-diabetic effects. In this study, we measured the effect of marein on RAW264.7 cells by CCK-8 assay and used TRAP staining to determine osteoclastogenesis. The levels of osteoclast-related genes and NF-κB-related proteins were then analyzed by western blot, and the levels of pro-inflammatory cytokines were quantified by ELISA. Our results showed that marein inhibited LPS-induced osteoclast formation by osteoclast precursor RAW264.7 cells. The effect of marein was related to its inhibitory function on expressions of pro-inflammatory cytokines and osteoclast-related genes containing RANK, TRAF6, MMP-9, CK, and CAII. Additionally, marein leads to markedly inhibited NF-κB signaling pathway activation in LPS-induced RAW264.7 cells. Concurrently, when the NF-κB signaling pathway was inhibited, osteoclast formation and proinflammatory cytokine expression were decreased. Collectively, marein could inhibit LPS-induced osteoclast formation in RAW264.7 cells via regulating the NF-κB signaling pathway. Our data demonstrate that marein might be a potential drug for bacteria-induced bone destruction disease. Our findings provide new insights into LPS-induced bone disease.
ScienceON
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