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29篇 您的检索式:作者名="Ru Xi"
    题名 作者 年代 出处 被引量
1Assessment of duodenogastric reflux by combined continuous intragastric pH and bilirubin monitoring显示文摘AIM: To assess the diagnostic value of a combination of continuous intragastric pH and bilirubin monitoring in the detection of duodenogastric reflux (DGR), and the effects of diet on the bilirubin absorbance.METHODS: 30 healthy volunteers were divided into twogroups: standard diet group (Group 1) 18 cases, free diet group (Group 2) 12 cases. Each subjects were subjected to simultaneous 24 hour intragastric pH and spectrophotometric bilirubin concentration monitoring (Bilitec 2000).RESULTS: There was no difference of preprandial phasebilirubin absorbance between two groups. The absorbanceof postprandial phase was significantly increased in group 2than group 1. There was no difference between preprandialphase and postprandial phase absorbance in group 1.Postprandial phase absorbance was significantly higher ingroup 2. In a comparison of bile reflux with intragastric pHduring night time, there were 4 types of reflux:Simultaneous increase in absorbance and pH in only 19.6%, increase in bilirubin with unchanged pH 33. 3 %, pHincrease with unchanged absorbance 36. 3 %, and bothunchanged in 10. 8 %. Linear regression analysis showed nocorrelation between percertage total time of pH < 4 aridpercentage total time of absortance > 0. 14, r=0.068, P<0.05.CONCLUSION: Because of the dietary effect, highabsorbance fluids or foods should be avoided in detection.Intrsgastric pH and bilirubin monitoring separately predictthe presence of duodenal (and/or pancreatic) reflux and bilereflux. They can not substitute for each other. The detectionof DGR is improved if the two parameters are combinedsimultanoously.Fei Dai Jun Gong Ru Zhang Jin-Yan Luo You-Ling Zhu Xue-Qin Wang,Department of Gastroenterology,Second Hospital of Xi’ an Jiaotong University,Xi’an 710004,Shaanxi Province,China 2002World Journal of Gastroenterology2002,8,2:30
2Endocrine Disruption Activity of 30-day Dietary Exposure to Decabromodiphenyl Ethane in Balb/C Mouse显示文摘Objective This study aimed to evaluate the hepatotoxicity,metabolic disturbance activity and endocrine disrupting activity of mice treated by Decabromodiphenyl ethane(DBDPE).Methods In this study,Balb/C mice were treated orally by gavage with various doses of DBDPE.After 30 days of treatment,mice were sacrificed; blood,livers and thyroid glands were obtained,and hepatic microsomes were isolated.Biochemical parameters including 8 clinical chemistry parameters,blood glucose and hormone levels including insulin and thyroid hormone were assayed.The effects of DBDPE on hepatic cytochrome P450(CYP) levels and activities and uridinediphosphate-glucuronosyltransferase(UDPGT) activities were investigated.Liver and thyroid glands were observed.Results There were no obvious signs of toxicity and no significant treatment effect on body weight,or liver-to-body weight ratios between treatment groups.The levels of ALT and AST of higher dose treatment groups were markedly increased.Blood glucose levels of treatment groups were higher than those of control group.There was also an induction in TSH,T3,and f T3.UDPGT,PROD,and EROD activities were found to have been increased significantly in the high dose group.Histopathologic liver changes were characterized by hepatocyte hypertrophy and cytoplasmic vacuolization.Our findings suggest that DBDPE can cause a certain degree of mouse liver damage and insufficiency.Conclusion DBDPE has the activity of endocrine disruptors in Bal/C mice,which may induce drug-metabolizing enzymes including CYPs and UDPGT,and interfere with thyroid hormone levels mediated by Ah R and CAR signaling pathways.Endocrine disrupting activity of DBDPE could also affect the glucose metabolism homeostasis.SUN Ru Bao SHANG Shuai ZHANG Wei LIN Ben Cheng WANG Qiang SHI Yun XI Zhu Ge 2018Biomedical and Environmental Sciences2018,31,1:7
3The Association of Socioeconomic Status with the Burden of Cataract-related Blindness and the Effect of Ultraviolet Radiation Exposure: An Ecological Study显示文摘Objective To assess the association of socioeconomic status with the burden of cataract blindness in terms of year lived with disability(YLD) rates and to determine whether ultraviolet radiation(UVR) levels modify the effect of socioeconomic status on this health burden.Methods National and subnational age-standardized YLD rates associated with cataract-related blindness were derived from the Global Burden of Disease(GBD) study 2017. The human development index(HDI) from the Human Development Report was used as a measure of socioeconomic status.Estimated ground-level UVR exposure was obtained from the Ozone Monitoring Instrument(OMI)dataset of the National Aeronautics and Space Administration(NASA).Results Across 185 countries, socioeconomic status was inversely associated with the burden of cataract blindness. Countries with a very high HDI had an 84% lower age-standardized YLD rate [95%confidence interval(CI): 60%–93%, P < 0.001] than countries with a low HDI;for high-HDI countries, the proportion was 76%(95% CI: 53%–88%, P < 0.001), and for medium-HDI countries, the proportion was48%(95% CI: 15%–68%, P = 0.010;P for trend < 0.001). The interaction analysis showed that UVR exposure played an interactive role in the association between socioeconomic status and cataract blindness burden(P value for interaction = 0.047).Conclusion Long-term high-UVR exposure amplifies the association of poor socioeconomic status with the burden of cataract-related blindness. The findings emphasize the need for strengthening UVR exposure protection interventions in developing countries with high-UVR exposure.DENG Yan YANG Dan YU Jia Ming XU Jing Xian HUA Hui CHEN Ren Tong WANG Nan OU Feng Rong LIU Ru Xi WU Bo LIU Yang 2021Biomedical and Environmental Sciences2021,34,2:6
4Effect of Chain Configuration on Thermal Conductivity of Polyethylene-A Molecular Dynamic Simulation Study显示文摘Stretched polyethylene(PE)fibers are found to have super high thermal conductivity,while the bulk of polyethylene is usually thermal insulating even for those with high crystalline degree.A molecular dynamic simulation is deliberately carried out to examine the relationship between chain configuration and thermal conductivity of polyethylene.In this simulation study,independent and interacting PE chains being stretched are compared with the aim to find out the effect of stretching on thermal conductivity of PE.Various crystallization conditions for PE bulk are considered.It is found that heat transports predominately along the covalent chain rather than across chains in PE crystals.Our simulation study helps to understand experimental findings on thermal conductivity of PE at different states.W e also predict that amorphous PE may be super thermally conductive if chains are strictly stretched along heat flux.Xiang Zhang Yu Wang Ru Xi Bin Wu Peng Chen Jia Sheng Qian Hao-Jun Liang 2020Chinese Journal of Polymer Science2020,38,12:6
5Asymptotic Properties of the Maximum Likelihood Estimate in Generalized Linear Models with Stochastic Regressors显示文摘为概括线性模型(GLM ) ,以防 regressors 是随机的并且有不同分布,参数的最大的可能性的估计(MLE ) 的 asymptotic 性质被学习。在合理条件下面,我们证明弱、强壮的一致性和 asymptotic 规度。关键词概括了线性模型 - 一致性 - 中国自然科学基础支持的 Asymptotic 规度先生(2000 ) 题目分类 62J12Jie Li DING Xi Ru CHEN 2006Acta Mathematica Sinica,English Series2006,22,6:6
6Cytotoxicity and Apoptosis Induction in Human HepG2 Hepatoma Cells by Decabromodiphenyl Ethane显示文摘Objective To investigate the toxic effects of decabromodiphenyl ethane (DBDPE), used as an alternative to decabromodiphenyl ether in vitro. Methods HepG2 cells were cultured in the presence of DBDPE at various concentrations (3.125-100.0 mg/L) for 24, 48, and 72 h respectively and the toxic effect of DBDPE was studied. Results As evaluated by the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl tetrazolium bromide and lactate dehydrogenase assays and nuclear morphological changes, DBDPE inhibited HepG2 viability in a time- and dose-dependent manner within a range of 12.5 mg/L to 100 mg/L and for 48 h and 72 h. Induction of apoptosis was detected at 12.5-100 mg/L at 48 h and 72 h by propidium iodide staining, accompanied with overproduction of reactive oxygen species (ROS). Furthermore, N-acetyl-L-cysteine, a widely used ROS scavenger, significantly reduced DBDPE-induced ROS levels and increased HepG2 cells viability. Conclusion DBDPE has cytotoxic and anti-proliferation effect and can induce apoptosis in which ROS plays an importantSUN Ru Bao XI Zhu Ge YAN Jun YANG Hong Lian 2012Biomedical and Environmental Sciences2012,25,5:6
7Prevalence and Risk Factors Associated with Adverse Drug Reactions among Previously Treated Tuberculosis Patients in China显示文摘我们与 anti-TB 药估计了不利的药反应(ADR ) 的发生并且为在中国在以前对待的肺结核病人开发 ADR 评估了风险因素。所有病人是由国家指南推荐了收到了首要的 anti-TB 政体(2HREZS/6HRE ) 。临床并且实验室评估一个月被执行一次。从 354 个参加者,(74.0%) 262 经历了象 hyperuricemia 那样的 ADR (65.0% , 230/354 ) , hepatotoxicity (6.2% , 22/354 ) 并且听觉骚乱(4.8% , 17/354 ) 。ADR 显著地与糖尿病 mellitus 被联系[或(95% CI ) :15.5 (2.07-115.87 )] ;然而,重量超过 50 kg [或(95% CI ) :0.41 (0.22-0.85 )] 是为 ADR 的出现的一个保护的因素。Hyperuricemia 是最普通的不利事件但是,有 hyperuricemia 的大多数病人为高尿的酸层次显示出增加的忍耐。低身体重量和糖尿病 mellitus 在 anti-TB 治疗期间增加了 ADR 的出现的风险。HAN Xi Qin PANG Yu MA Yan LIU Yu Hong GUO Ru SHU Wei HUANG Xue Rui GE Qi Ping DU Jian GAO Wei Wei 2017Biomedical and Environmental Sciences2017,30,2:5
8Overproduction of nitric oxide inhibits vascular reactivity in portal hypertensive rats显示文摘OverproductionofnitricoxideinhibitsvascularreactivityinportalhypertensiveratsLIXiRu,WUJinSheng,HEZeSheng,MAQingJiuandGAO...LI XiRu, WU JinSheng, HE ZeSheng, MA QingJiu and GAO DeMing 1997World Journal of Gastroenterology1997,3,4:5
9Subacute Effect of Decabromodiphenyl Ethane on Hepatotoxicity and Hepatic Enzyme Activity in Rats显示文摘Information regarding decabromodiphenyl ethane(DBDPE)effects on hepatotoxicity and metabolism is limited.In the present study,Wistar rats were given oral DBDPE at different doses.DBDPE induced oxidative stress,elevated blood glucose levels,increased CYP2B2 mRNA,CYP2B1/2protein,7-pentoxyresorufin O-depentylase(PROD)activity,and induced CYP3A2 mRNA,CYP3A2protein,and luciferin benzylether debenzylase(LBD)activity.UDPGT activity increased with its increasing exposure levels,suggesting that oral DBDPE exposure induces drug-metabolizing enzymes in rats via the CAR/PXR signaling pathway.The induction of CYPs and co-regulated enzymes of phase II biotransformation may affect the homeostasis of endogenous substrates,including thyroid hormones,which may,in turn,alter glucose metabolism.SUN Ru Bao XI Zhu Ge ZHANG Hua Shan ZHANG Wei 2014Biomedical and Environmental Sciences2014,27,2:4
10Atomic-scale observation of a two-stage oxidation process in Cu2O显示文摘Cu 2 O nanocrystallines (NC ) 直接被观察由在 situ 高分辨率的传播电子显微镜学。一个二阶段的氧化过程被观察:(1 ) 起始的氧化阶段被 Cu 2 经由稳固固体的转变的 O NC,导致一个新中间的 CuO x 阶段的形成。CuO x 阶段的可能的水晶结构被讨论。(2 ) 随后, CuO x 被 layer-by-layer 氧化转变成 CuO。这些结果将在理解铜氧化物的氧化机制帮助并且为改进他们的结构的差异并且利用他们的潜在的工业应用铺平道路。Huihui Liu He Zheng Lei Li Huaping Sheng Shuangfeng Jia Fan Cao Xi Liu Boyun Chen Ru Xing Dongshan Zhao Jianbo Wang 2017Nano Research2017,10,7:4
11A new prenylated arylbenzofuran derivative from Morus alba L.显示文摘2-[3,5-Di-O-β-D-glucosyl-4-(3-methylbut-2-enyl)phenyl]benzofuran-6-ol,a new prenylated arylbenzofuran derivative was isolated from Morus alba L.Its structure was elucidated by various spectroscopic methods including MS,~1H NMR,^(13)C NMR,DEPT,~1H-~1HCOSY,HMQC and HMBC.Tian, Hai Ying He, Xi Zeng, Guang Yao Tan, Jian Bin Shuang, Fu Liu, Guo Ru Tan, Gui Shan Zhou, Ying Jun 2010Chinese Chemical Letters2010,21,3:3
12Concentrating partially entangledW-class states on nonlocal atoms using low-Q optical cavity and linear optical elements显示文摘Entanglement plays an important role in quantum information science, especially in quantum communications. Here we present an efficient entanglement concentration protocol(ECP) for nonlocal atom systems in the partially entangled W-class states, using the single-photon input-output process regarding low-Q cavity and linear optical elements. Compared with previously published ECPs for the concentration of non-maximally entangled atomic states, our protocol is much simpler and more efficient as it employs the Faraday rotation in cavity quantum electrodynamics(QED) and the parameter-splitting method. The Faraday rotation requires the cavity with low-Q factor and weak coupling to the atom, which makes the requirement for entanglement concentration much less stringent than the previous methods, and achievable with current cavity QED techniques. The parameter-splitting method resorts to linear-optical elements only. This ECP has high efficiency and fidelity in realistic experiments, and some imperfections during the experiment can be avoided efficiently with currently available techniques.Cong Cao Xi Chen YuWen Duan Ling Fan Ru Zhang TieJunWang Chuan Wang 2016Science China(Physics,Mechanics & Astronomy)2016,59,10:3
13Role of carbon in modifying solidification and microstructure of a Ni?based superalloy with high Al and Ti contents显示文摘The effect of carbon ranging from 0.014 to 0.071 wt.%on the solidification and microstructure of a Ni-based superalloy with high Al and Ti contents was studied.The results show that the increase in carbon addition significantly increases the size and volume fraction of MC carbides and promotes the change of their morphology from blocky to elongated shape.However,the carbon addition obviously decreases the size and volume fraction of eutectic(γ+γ′)and reducesηphase and borides formation.The change in carbide characteristics is mainly because of the increasing carbide-forming element and carbides precipitation temperature with the increase in carbon which favors the growth of them along the interdendritic liquid film.MC carbides are formed at an earlier solidification stage than the eutectic(γ+γ′).The increased carbide formation consumes more Ti,which delays and reduces the eutectic(γ+γ′)precipitation.The delay of eutectic(γ+γ′)precipitation leads to a deeper undercooling,which significantly decreases the critical Ti concentration for its precipitation.This,in turn,lowers Ti/Al ratio in residual liquids ahead of the eutectic(γ+γ′)and hence reducesηformation subsequently.B and Zr are slightly enriched in the carbides,which are considered during discussing how carbon influences the eutectic(γ+γ′)precipitation.Guang‑di Zhao Xi‑min Zang Wen‑ru Sun 2021Journal of Iron and Steel Research(International)2021,28,1:2
14Seismology Based Ground Motion Attenuation Relationship for Sendai Area显示文摘Tao Zheng Ru Tao Xia Xin Wang Xi Wei 2012Advanced Materials Research2012,,382:1
15Synthesis and properties of nickel borate acylate as a new rubber-steel cord adhesion promoter显示文摘The synthetic method of nickel borate acylate (NBA), a kind of rubber steel cord adhesion promoter (AP), through nickel carbonate, borate and mixed carboxylic acid was studied. The preparation of nickel carbonate could be performed through reaction of nickel sulfate with sodium carbonate in aqueous solution, in which fractional conversion of nickel was more than 99.9%. The mixed nickel carboxylate was prepared by the reaction of nickel carbonate with isooctanoic acid and acetic acid, under strong stirring for 2 h, the mole ratio of these chemicals were 1∶1∶1.1 respectively, and water should be removed completely by adding of inert organic solvent after reaction was finished so as to avoid hydrolysis of tributyl borate in the second reaction. NBA was synthesized by reaction of mixed nickel carboxylate with tributyl borate under strong stirring at 200 250 ℃ for 6 h. By detection and comparison with 680C product from Manobond Company of England, the NBA synthesized through isooctanoic acid and tributyl borate was very similar to product 680C in IR data, 300% fixed extension strength, tensile strength, hardness and cure curve, and was slightly lower than those of product 680C in tensile failure extensibility and hot air aging. The experimental results show that the prepared NBA can be used as rubber steel cord AP.LI Xiao ru 1,NIE Xi du 2,WU Hai ying 1,CHENG Ben cheng 1 (1 College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China 2 Hengyang Branch of Hunan University, Hengyang 412000, China) 2001Journal of Central South University of Technology2001,8,4:1
16Chronic liver disease is universal in children with biliary atresia living with native liver显示文摘AIM To examine the medical status of children with biliary atresia(BA) surviving with native livers.METHODS In this cross-sectional review,data collected included complications of chronic liver disease(CLD)(cholangitis in the preceding 12 mo,portal hypertension,variceal bleeding,fractures,hepatopulmonary syndrome,portopulmonary hypertension) and laboratory indices(white cell and platelet counts,total bilirubin,albumin,international normalized ratio,alanine aminotransferase,aspartate aminotransferase,γ-glutamyl transpeptidase). Ideal medical outcome was defined as absence of clinical evidence of CLD or abnormal laboratory indices. RESULTS Fifty-two children [females = 32,62%; median age 7.4 years,n = 35(67%) older than 5 years] with BA(median age at surgery 60 d,range of 30 to 148 d) survived with native liver. Common complications of CLD noted were portal hypertension(40%,n = 21; 2 younger than 5 years),cholangitis(36%) and bleeding varices(25%,n = 13; 1 younger than 5 years). Fifteen(29%) had no clinical complications of CLD and three(6%) had normal laboratory indices. Ideal medical outcome was only seen in 1 patient(2%). CONCLUSION Clinical or laboratory evidence of CLD are present in 98% of children with BA living with native livers after hepatoportoenterostomy. Portal hypertension and variceal bleeding may be seen in children younger than 5 years of age,underscoring the importance of medical surveillance for complications of BA starting at a young age.Way Seah Lee Sik Yong Ong Hee Wei Foo Shin Yee Wong Chen Xi Kong Ru Bin Seah Ruey Terng Ng 2017World Journal of Gastroenterology2017,23,43:1
17Functional and pathological improvements of the hearts in diabetes model by the combined therapy of bFGF-loaded nanoparticles with ultrasound-targeted microbubble destruction显示文摘Ying-Zheng Zhao Xin-Qiao Tian Ming Zhang Lu Cai Ao Ru Xiao-Tong Shen Xi Jiang Rong-Rong Jin Lei Zheng Kyle Hawkins Subrata Charkrabarti Xiao-Kun Li Qian Lin Wen-Ze Yu Shuping Ge Cui-Tao Lu Ho Lun Wong 2014Journal of Controlled Release2014,,:1
18Cancer stem‐like cell properties are regulated by EGFR / AKT /β–catenin signaling and preferentially inhibited by gefitinib in nasopharyngeal carcinoma显示文摘Lei Ma Gong Zhang Xiao‐Bo Miao Xu‐Bin Deng Yue Wu Ying Liu Zhi‐Ru Jin Xi‐Qing Li Qiu‐Zhen Liu Du‐Xin Sun Joseph R. Testa Kai‐Tai Yao Guang‐Hui Xiao 2013FEBS J2013,,9:1
19Gynecologic infections seen in ThinPrep cytological test in Wuhan, China显示文摘这研究试图分析流行细菌,在 ThinPrep cytological 测试(TCT ) 的 Candida, Trichomonas,和人的乳头状瘤病毒(HPV ) 感染表现在中国武汉的女人上。ThinPrep 油迹被二个独立富有经验的病理学家屏蔽并且从 2008 ~ 2010 报导了。46 866 ThinPrep 油迹的一个总数被学习,并且有发炎的油迹被分析。44 162 个注册病人,发炎变化被观察在 21 935 (49.7%) 并且在 6884 的特定的感染(31.4%) 。检测的感染如下:细菌, 5663 (82.3%) ;Candida, 825 (12.0%) ;Trichomonas, 273 (4.0%) ;并且 HPV, 148 (2.1%) 。重要变化在在 2010 前后经历了 TCT 的女人之中在细菌和 Candida 的流行被发现。< 啜 class= “ a-plus-plus ” > 2 揭示了在 2010 以后在油迹发现的特定的感染的一个增加的比例(P = 0.000 ) 。在结论,细菌的感染在 ThinPrep 油迹是最可检测的,由 Candida 和 Trichomonas 列在后面。TCT 识别的感染的流行被发现在在中国的以前的文学类似。Hang Zhou Yao Jia Jian Shen Shaoshuai Wang Xiong Li Ru Yang Kecheng Huang Ting Hu Fangxu Tang Jin Zhou Jingping Yuan Lei Huang Xun Tian Zhilan Chen Qinghua Zhang Changyu Wang Ling Xi Dongrui Deng Hui Wang Ding Ma Shuang Li 2014Frontiers of Medicine2014,8,2:1
20DOCK2 regulates antifungal immunity by regulating RAC GTPase activity显示文摘Fungal infections cause~1.5 million deaths each year worldwide,and the mortality rate of disseminated candidiasis currently exceeds that of breast cancer and malaria.The major reasons for the high mortality of candidiasis are the limited number of antifungal drugs and the emergence of drug-resistant species.Therefore,a better understanding of antifungal host defense mechanisms is crucial for the development of effective preventive and therapeutic strategies.Here,we report that DOCK2(dedicator of cytokinesis 2)promotes indispensable antifungal innate immune signaling and proinflammatory gene expression in macrophages.DOCK2-deficient macrophages exhibit decreased RAC GTPase(Rac family small GTPase)activation and ROS(reactive oxygen species)production,which in turn attenuates the killing of intracellular fungi and the activation of downstream signaling pathways.Mechanistically,after fungal stimulation,activated SYK(spleen-associated tyrosine kinase)phosphorylates DOCK2 at tyrosine 985 and 1405,which promotes the recruitment and activation of RAC GTPases and then increases ROS production and downstream signaling activation.Importantly,nanoparticle-mediated delivery of in vitro transcribed(IVT)Rac1 mRNA promotes the activity of Rac1 and helps to eliminate fungal infection in vivo.Taken together,this study not only identifies a critical role of DOCK2 in antifungal immunity via regulation of RAC GTPase activity but also provides proof of concept for the treatment of invasive fungal infections by using IVT mRNA.Xiaojian Ma Xi Tan Bingbing Yu Wanwei Sun Heping Wang Huijun Hu Yanyun Du Ruirui He Ru Gao Qianwen Peng Zhihui Cui Ting Pan Xiong Feng Junhan Wang Chengqi Xu Bin Zhu Wei Liu Chenhui Wang 2022Cellular & Molecular Immunology2022,19,5:1
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