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Search Results: 1 - 10 of 51500 matches for " Chun-Bin Jiang "
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In Vitro Prevention of Salmonella Lipopolysaccharide-Induced Damages in Epithelial Barrier Function by Various Lactobacillus Strains
Chun-Yan Yeung,Jen-Shiu Chiang Chiau,Wai-Tao Chan,Chun-Bin Jiang,Mei-Lien Cheng,Hsuan-Liang Liu,Hung-Chang Lee
Gastroenterology Research and Practice , 2013, DOI: 10.1155/2013/973209
Abstract: Background. Lactobacillus shows beneficial anti-inflammatory effects on Salmonella infection. The maintenance of the tight junction (TJ) integrity plays an importance role in avoiding bacterial invasion. Whether Lactobacillus could be used to regulate the TJ protein expression and distribution in inflamed intestinal epithelial cells was determined. Methods. Using the transwell coculture model, Salmonella lipopolysaccharide (LPS) was apically added to polarized Caco-2 cells cocultured with peripheral blood mononuclear cells in the basolateral compartment. LPS-stimulated Caco-2 cells were incubated with various Lactobacillus strains. TJ integrity was determined by measuring transepithelial electrical resistance across Caco-2 monolayer. Expression and localization of TJ proteins (zonula-occludens- (ZO-) 1) were determined by Western blot and immunofluorescence microscopy. Results. Various strains of Lactobacillus were responsible for the different modulations of cell layer integrity. LPS was specifically able to disrupt epithelial barrier and change the location of ZO-1. Our data demonstrate that Lactobacillus could attenuate the barrier disruption of intestinal epithelial cells caused by Salmonella LPS administration. We showed that Lactobacillus strains are associated with the maintenance of the tight junction integrity and appearance. Conclusion. In this study we provide insight that live probiotics could improve epithelial barrier properties and this may explain the potential mechanism behind their beneficial effect in vivo. 1. Introduction Salmonella infection is a common cause of human food poisoning worldwide and can induce a broad spectrum of diseases from mild diarrhea to typhoid. All Salmonella serotypes share the ability to gain entry to the host through oral ingestion of contaminated food or water. They induce their own uptake into intestinal epithelial by Salmonella pathogenicity island-1 (SPI-1) type 3 secretion system. This epithelial barrier function can be further weakened by infection with bacteria, including S. typhimurium effectors [1, 2]. Salmonella enterica serovar Typhimurium has developed means of breaching the mucosal epithelial barrier by usurping signaling mechanisms within host cells [3]. It is likely that Salmonella induces localized effects on tight junction permeability during intestinal infections. These effects may act synergistically with other conditions, such as inflammatory responses, to promote tight junction (TJ) dysfunction [4]. At present, S. typhimurium overcoming the intestinal barrier is the most widely accepted
A study on percolation threshold of Ag-MgF2 nanoparticle cermet films

Cao Chun-Bin,Cai Qi,Jiang Xi-Shun,Song Xue-Ping,Sun Zhao-Qi,
,蔡 琪,江锡顺,宋学萍,孙兆奇

物理学报 , 2006,
Abstract: Several methods are introduced to calculate the percolation threshold of nanoparticle cermet films made of ceramic matrix with embedded metal nanoparticles. For Ag-MgF2 nanoparticle cermet films, the percolation threshold of 0.14, which reasonably agrees with the experimental results, is calculated by using Priou's percolation threshold theory. The factors that affect cermet film percolation threshold are also discussed.
Expression of Synthetic Porcine Alpha-Lactalbumin in Transgenic Arabidopsis

LU Chun-bin,

热带亚热带植物学报 , 2005,
Abstract: A 398-bp plantified encoding fragment of porcine α -lactalbumin, was cloned into plasmid under the control of the cauliflower mosaic virus 35S promoter. The expression cassette was introduced into A rabidopsis with Agrobacterium mediated transformation. Some herbicide-resistant lines of transformed A rabidopsis were selected. The gene integration of chromosomal DNA level were confirmed in regenerated plants. All of them are positive for porcine α-lactalbumin gene via genomic DNA PCR. The expression at the protein level could be confirmed only in the transgenic Arabidopsis. The arabidopsis-expressed lactalbumin (LA) migrated in SDSPAGE with identical mobility to human LA prepared from human milk, indicating that the LA was correctly processed to yield a mature protein in plants
The spatial distributions of chiral magnetic field in the RHIC and LHC energy regions
Yang Zhong,Chun-Bin Yang,Xu Cai,Sheng-Qin Feng
Physics , 2014, DOI: 10.1088/1674-1137/39/10/104105
Abstract: Relativistic heavy-ion collisions can produce extremely strong magnetic field in the collision regions. The spatial variation features of the magnetic fields are analyzed in detail for non-central Pb - Pb collisions at LHC $\sqrt{s_{NN}}$= 900, 2760 and 7000 GeV and Au-Au collisions at RHIC $\sqrt{s_{NN}}$ = 62.4, 130 and 200 GeV. The dependencies of magnetic field on proper time, collision energies and impact parameters are investigated in this paper. It is shown that a enormous with highly inhomogeneous spatial distribution magnetic field can indeed be created in off-central relativistic heavy-ion collisions in RHIC and LHC energy regions. The enormous magnetic field is quite large, especially just after the collision, and then decreases rapidly with time. We are surprised to find that the magnetic effect decreases with increasing energy from RHIC to LHC energy region. It is found that the magnitude of magnetic field in the LHC energy region is far less than that of magnetic field in the RHIC energy region.
Chiral electric field in relativistic heavy-ion collisions at energies available at the BNL Relativistic Heavy Ion Collider and at the CERN Large Hadron Collider
Yang Zhong,Chun-Bin Yang,Xu Cai,Sheng-Qin Feng
Physics , 2015,
Abstract: It was proposed that the electric fields may lead to chiral separation in QGP, which is called the chiral electric separation effect. The strong electromagnetic field and the QCD vacuum can both completely be produced in the off-central nuclear-nuclear collision. We used the Wood-Saxon nucleon distribution to calculate the electric field distributions of the off-central collisions. The chiral electro field spatial distribution at Relativistic Heavy-Ion Collider (RHIC) and Large Hadron Collider (LHC) energy regions are systematically studied in this paper. Compared with magnetic field spatial distribution, electric field shows some different features in relativistic heavy-ion collisions. The dependence of the electric field produced by the thermal quark in the central position with different impact parameters on the proper time with different collision energies in the RHIC and LHC energy region are studied in this paper.
Exploration of teaching reform on Enzyme Engineering course

JIN Li-Ming,QUAN Chun-Shan,LIU Bao-Quan,LI Chun-Bin,

微生物学通报 , 2012,
Abstract: Enzyme engineering course mainly concerning about enzyme production and application is one of the major courses of biological engineering major. In order to improve teaching effects, the methods of giving lecture on Enzyme Engineering were discussed based on the practice of our college. During the course, a teacher should select the most suitable book, optimize teaching contents, reform teaching methods and teaching means and consummate the examination form.
Search Engine for Genetics Journals
Medline (PubMed)遗传学杂志文献搜索引擎开发研究The Search Engine of Genetics Journals

ZHANG CHUN-BIN,LI Ying-Jie,LUO Jia-bin,LU Xue-Shen,
,李颖杰,罗佳滨,吕学诜ZHANG Chun-Bin,LI Ying-Jie,LUO Jia-Bin,,Xue-Shen

遗传 , 2005,
Abstract: To help geneticists look up genetics journals more quickly and exactly,this paper developed this search engine of genetics journals. The paper exploited the search engine with genetics journals sources of Medline database in NCBI, indexed and listed 173 names of genetics journals from Medline. Then obtained one search engine concerning genetics journals after making every journal's super linkage. The search engine can search out not only all articles' titles of 173 genetics journals but also some articles' titles of the journals each year quickly, exactly and dynamically. We can further obtain all articles' abstracts and some full texts in PubMed.


物理学报 , 2001,
Abstract: A three-dementional(3D) kinetic model method for KrF laser is presented. The major difference between the method and the previous kinetic method for KrF laser is that the space nonuniform for the electronic pump is considered. The pump rate is considered as a function of 3D-space (X,Y,Z) and time (t). Using the 3D model method, 96101702 experiment is simulated . The calculated laser energy output and lens energy distribution is in agreement with the experimental results. The problem that the calculated result of 1D model is obviously-higher than the experimental result is solved.
The Effects of Mannitol on the Activity of Indole Acetic Acid Oxidase, Peroxidase and Glutathione S_transferase in Cells of Wheat

LIAO Xiang-Ru DU Jian-Fang LU Chun-Bin,ZHOU Yan-Fen WANG Jian-Ping,

植物学报 , 2001,
Abstract: The effects of mannitol on cell redifferentiation and activities of indole acetic acid oxidase and peroxidase, glutathione S_transferase, and peroxidase in cells of wheat were investigated. The results showed that 16 g/L mannitol reduced the capacity of wheat cell redifferentiation, decreased the soluble protein content and the activity of indole acetic acid peroxidase and glutathione S_transferase, enhanced the activity of indole acetic acid oxidase and peroxidase.
Electromagnetically induced transparency in hybrid plasmonic-dielectric system
Bin Tang,Lei Dai,Chun Jiang
Physics , 2010, DOI: 10.1364/OE.19.000628
Abstract: We present theoretical and numerical analysis of a plasmonic-dielectric hybrid system for symmetric and asymmetric coupling between silver cut-wire pairs and silicon grating waveguide with periodic grooves. The results show that both couplings can induce electromagnetically-induced transparency (EIT) analogous to the quantum optical phenomenon. The transmission spectrum shows a single transparency window for the symmetric coupling. The strong normal phase dispersion in the vicinity of this transparent window results in the slow light effect. However, the transmission spectrum appears an additional transparency window for asymmetry coupling due to the double EIT effect, which stems from an asymmetrically coupled resonance (ACR) between the dark and bright modes. More importantly, the excitation of ACR is further associated with remarkable improvement of the group index from less than 40 to more than 2500 corresponding to a high transparent efficiency by comparing with the symmetry coupling. This scheme provides an alternative way to develop the building blocks of systems for plasmonic sensing, all optical switching and slow light applications.
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