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| 1 | Clostridium difficile infections in China显示文摘Clostridium difficile (C. difficile) infection has become one of the major hospital-associated infections in West-ern countries in the last two decades. However, there is limited information on the status of C. difficile infection inChinese healthcare settings. Given the large and increasing elderly population and the well-recognized problem ofover-prescribing of broad spectrum antibiotics in China, it is critical to understand the epidemiology and potentialrisk factors that may contribute to C. difficile infection in China. A literature review of available published studies,including those in Chinese language-based journals, was conducted. A review of the currently available literaturesuggested the presence of C. difficile infections in China, but also suggested that these infections were not particu-larly endemic. This finding should lead to better designed and greatly expanded studies to provide a more reliableepidemiologically-based conclusion on the actual status of C. difficile infection in China, including the identifica-tion of any associated risk factors. Such information is ultimately valuable to develop appropriate strategies to pre-vent C. difficile infection and the vast negative impact of such infections in China and other developing countries. | Ke Jin a,b,c,Shixia Wang c,d,Zuhu Huang a,b,c,Shan Lu b,c,daDepartment of Infectious Diseases,bJiangsu Province Key Laboratory in Infectious Diseases,cChina-US Vaccine ResearchCenter,the First Affiliated Hospital of Nanjing Medical University,Nanjing,Jiangsu 210029,China d Department of Medicine,University of Massachusetts Medical School,Worcester,MA 01655,USA. | 2010 | The Journal of Biomedical Research2010，24，6： | 14 |
| 2 | Effects of quaternary ammonium chain length on the antibacterial and remineralizing effects of a calcium phosphate nanocomposite显示文摘Composites containing nanoparticles of amorphous calcium phosphate(NACP)remineralize tooth lesions and inhibit caries.A recent study synthesized quaternary ammonium methacrylates(QAMs)with chain lengths(CLs)of 3–18 and determined their effects on a bonding agent.This study aimed to incorporate these QAMs into NACP nanocomposites for the first time to simultaneously endow the material with antibacterial and remineralizing capabilities and to investigate the effects of the CL on the mechanical and biofilm properties.Five QAMs were synthesized:DMAPM(CL3),DMAHM(CL6),DMADDM(CL12),DMAHDM(CL16),and DMAODM(CL18).Each QAM was incorporated into a composite containing 20%NACP and 50%glass fillers.A dental plaque microcosm biofilm model was used to evaluate the antibacterial activity.The flexural strength and elastic modulus of nanocomposites with QAMs matched those of a commercial control composite(n 5 6;P.0.1).Increasing the CL from 3 to 16 greatly enhanced the antibacterial activity of the NACP nanocomposite(P,0.05);further increasing the CL to 18 decreased the antibacterial potency.The NACP nanocomposite with a CL of 16 exhibited biofilm metabolic activity and acid production that were 10-fold lesser than those of the control composite.The NACP nanocomposite with a CL of 16 produced 2-log decreases in the colony-forming units(CFU)of total microorganisms,total streptococci,and mutans streptococci.In conclusion,QAMs with CLs of 3–18 were synthesized and incorporated into an NACP nanocomposite for the first time to simultaneously endow the material with antibacterial and remineralization capabilities.Increasing the CL reduced the metabolic activity and acid production of biofilms and caused a 2-log decrease in CFU without compromising the mechanical properties.Nanocomposites exhibiting strong anti-biofilm activity,remineralization effects,and mechanical properties are promising materials for tooth restorations that inhibit caries. | Ke Zhang Lei Cheng Michael D Weir Yu-Xing Bai Hockin HK Xu | 2016 | International Journal of Oral Science2016，8，1： | 13 |
| 3 | One-year water-ageing of calcium phosphate composite containing nano-silver and quaternary ammonium to inhibit biofilms显示文摘Dental composites are commonly used restorative materials; however, secondary caries due to bio?lm acids remains a major problem. The objectives of this study were(1) to develop a composite containing quaternary ammonium dimethacrylate(QADM),nanoparticles of silver(NAg), and nanoparticles of amorphous calcium phosphate(NACP), and(2) to conduct the ?rst investigation of the mechanical properties, bio?lm response and acid production vs water-ageing time from 1 day to 12 months.A 4 × 5 design was utilized, with four composites(NACP-QADM composite, NACP-NAg composite, NACP-QADM-NAg composite,and a commercial control composite), and ?ve water-ageing time periods(1 day, and 3, 6, 9, and 12 months). After each waterageing period, the mechanical properties of the resins were measured in a three-point ?exure, and antibacterial properties were tested via a dental plaque bio?lm model using human saliva as an inoculum. After 12 months of water-ageing, NACP-QADMNAg had a ?exural strength and elastic modulus matching those of the commercial control(P40.1). Incorporation of QADM or NAg into the NACP composite greatly reduced bio?lm viability, metabolic activity and acid production. A composite containing both QADM and NAg possessed a stronger antibacterial capability than one with QADM or NAg alone(Po0.05). The anti-bio?lm activity was maintained after 12 months of water-ageing and showed no signi?cant decrease with increasing time(P40.1). In conclusion, the NACP-QADM-NAg composite decreased bio?lm viability and lactic acid production, while matching the loadbearing capability of a commercial composite. There was no decrease in its antibacterial properties after 1 year of water-ageing.The durable antibacterial and mechanical properties indicate that NACP-QADM-NAg composites may be useful in dental restorations to combat caries. | Lei Cheng Ke Zhang Chen-Chen Zhou Michael D Weir Xue-Dong Zhou Hockin HK Xu | 2016 | International Journal of Oral Science2016，8，3： | 8 |
| 4 | Histogram analysis of MR imaging-derived cerebral blood volume maps:combined glioma grading and identification of low-grade oligodendroglial subtypes显示文摘AJNR, 2008 Jun 26.BACKGROUND AND PURPOSE: Inclusion of oligodendroglial tumors may confound the utility of MR based glioma grad-ing. Our aim was, first, to assess retrospectively whether a histogram-analysis method of MR perfusion images may both | Emblem KE Scheie D Due-Tonnessen P Nedregaard B Nome T Hald JK Beiske K Meling TR Bjornerud A | 2008 | 中国神经肿瘤杂志2008，6，2： | 5 |
| 5 | 载脂蛋白E基因型影响老年人心输出量与认知功能的相关性显示文摘心输出量的轻微下降与低脑血流量相关,尤其是在阿尔茨海默病病理改变的首发区域。载脂蛋白E(apolipoprotein E,APOE)-ε4是阿尔茨海默病的一个遗传易感性危险因素,同时能减轻血管损伤。该研究旨在探讨携带APOE-ε4基因是否影响心输出量与认知功能的相关性。研究人员纳入范德比尔特记忆老化项目中无临床脑卒中和痴呆的参与者306例,平均年龄(73±7)岁,其中42%为女性。 | 陈嘉睿 刘莉 Bown CW Liu D Osborn KE Gupta DK Mendes LA Pechman KR Hohman TJ Wang TJ Gifford KA Jefferson AL | 2019 | 中华高血压杂志2019，27，10： | 2 |
| 6 | Panda X-III: Searching for neutrinoless double beta decay with high pressure ^(136)Xe gas time projection chambers显示文摘Searching for the neutrinoless double beta decay(NLDBD)is now regarded as the topmost promising technique to explore the nature of neutrinos after the discovery of neutrino masses in oscillation experiments.Panda X-III(particle and astrophysical xenon experiment III)will search for the NLDBD of136Xe at the China Jin Ping Underground Laboratory(CJPL).In the first phase of the experiment,a high pressure gas Time Projection Chamber(TPC)will contain 200 kg,90%136Xe enriched gas operated at10 bar.Fine pitch micro-pattern gas detector(Microbulk Micromegas)will be used at both ends of the TPC for the charge readout with a cathode in the middle.Charge signals can be used to reconstruct the electron tracks of the NLDBD events and provide good energy and spatial resolution.The detector will be immersed in a large water tank to ensure~5 m of water shielding in all directions.The second phase,a ton-scale experiment,will consist of five TPCs in the same water tank,with improved energy resolution and better control over backgrounds. | Xun Chen Chang Bo Fu Javier Galan Karl Giboni Franco Giuliani Ling Hui Gu Ke Han Xiang Dong Ji Heng Lin Jiang Lai Liu Kai Xiang Ni Hiroki Kusano Xiang Xiang Ren Shao Bo Wang Yong Yang Dan Zhang Tao Zhang Li Zhao Xiang Ming Sun Shou Yang Hu Si Yu Jian Xing Long Li Xiao Mei Li Hao Liang Huan Qiao Zhang Ming Rui Zhao Jing Zhou Ya Jun Mao Hao Qiao Si Guang Wang Ying Yuan Meng Wang Amir N.Khan Neill Raper Jian Tang Wei Wang Jia Ning Dong Chang Qing Feng Cheng Li Jian Bei Liu Shu Bin Liu Xiao Lian Wang Dan Yang Zhu Juan F.Castel Susana Cebri'an Theopisti Dafni Javier G.Garza Igor G.Irastorza Francisco J.Iguaz Gloria Luz ′on Hector Mirallas Stephan Aune Eric Berthoumieux Yann Bedfer Denis Calvet Nicole d'Hose Alain Delbart Maria Diakaki Esther Ferrer-Ribas Andrea Ferrero Fabienne Kunne Damien Neyret Thomas Papaevangelou Franck Sabatie Maxence Vanderbroucke AnDi Tan Wick Haxton Yuan Mei Chinorat Kobdaj Yu-Peng Yan | 2017 | Science China(Physics,Mechanics & Astronomy)2017，60，6： | 2 |
| 7 | Denervated human skeletal muscle:MR imaging evaluation 显示文摘 | Fleckenstein JL Watumull D Conner KE | 1993 | Radiol1993，187，1： | 1 |
| 8 | Preparation and photocatalytic activity of dysprosium doped tungsten trioxide nanoparticles 显示文摘 | Liu H J Peng T Y Ke D N | 2007 | Materials Chemistry and Physics2007，104，23： | 1 |
| 9 | The effect of active oxygen on the activity of ACC synthase induced by exogenous IAA显示文摘 | Ke D S Wang A G Sun G C | 2002 | Acta Botany Sinica2002，44，： | 1 |
| 10 | Seawater pH sensor based on the long period grating in a single-mode-multimode-single-mode structure 显示文摘 | WANG Ke KLIMOV D KOLBER Z | 2009 | Optical Engineering2009，48，3： | 1 |
| 11 | Helicobacter pylorigastritis and gastric physiology 显示文摘 | MCCOLL KE EL-OMAR E GILLEN D | 2000 | Gastroenterol Clin North AM2000，29，3： | 1 |
| 12 | Amercian college of radiology guideline for breast cancer screening 显示文摘 | Feig SA D'Orsi CJ Hendrick KE | 1998 | AJR1998，171，1： | 1 |
| 13 | 查看详情显示文摘 | Wu D J Cao L Ke S Z | | 0，，： | 1 |
| 14 | Enzymatic epoxidationof Sapindus mukurossi seed oil by perstearic acid optimizedusing response surface methodology 显示文摘 | SUN S D KE X Q CUI L I | 2011 | Industrial Crops Prod-ucts2011，33，3： | 1 |
| 15 | A large outbreak of hand,foot, and mouth disease caused by EV71 and CAV16 in Guangdong,China, 2009显示文摘 | Wu D Ke C Li W | 2011 | Arch Virol2011，156，6： | 1 |
| 16 | Reconstruction of massive defects in the head and neck: the role of simultaneous distant and regional flaps显示文摘 | Blackwell KE Buchbinder D Biller HF | 1997 | Head Neck Surg1997，19，7： | 1 |
| 17 | The small GTPase Rop6interacts with NFR5and is involved in nodule formation in Lotus japonicus显示文摘 | Ke D X Fang Q Chen C F | 2012 | Plant Physiol2012，159，1： | 1 |
| 18 | Repaid detection of group B streptococci in pregnancy woman at delivery显示文摘 | Bergeron MG Ke D Menard C | 2000 | N Engl J Med2000，343，1： | 1 |
| 19 | Preparation and photocatalytic activity of WO3/TiO2 nanocomposite particles 显示文摘 | Ke D N Liu H J Peng T Y | 2008 | Materials Letters2008，62，3： | 1 |
| 20 | Duration of hypotension before initiation of effective antimlcrobial therapy is the critical determinant of survival in human septic shock 显示文摘 | Kumar A Robert D Wood KE | 2006 | Crit Care Med2006，34，： | 1 |
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