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| 1 | Relationship between angiotensin-(1-7) and angiotensin Ⅱ correlates with hemodynamic changes in human liver cirrhosis显示文摘AIM:To measure circulating angiotensins at different stages ofhuman cirrhosis and to further evaluate a possible relationship between renin angiotensin system (RAS) components and hemodynamic changes.METHODS: Patients were allocated into 4 groups: mild-to-moderate liver disease (MLD), advanced liver disease (ALD), patients undergoing liver transplantation, and healthy controls. Blood was collected to determine plasma renin activity (PRA), angiotensin (Ang) , Ang Ⅱ, and Ang-(1-7) levels using radioimmunoassays. During liver transplantation, hemodynamic parameters were determined and blood was simultaneously obtained from the portal vein and radial artery in order to measure RAS components.RESULTS: PRA and angiotensins were elevated in ALD when compared to MLD and controls (P < 0.05). In contrast, Ang was signicantly reduced in MLD. Ang-(1-7)/Ang Ⅱ ratios were increased in MLD when compared to controls and ALD. During transplantation, Ang Ⅱ levels were lower and Ang-(1-7)/Ang Ⅱ ratios were higher in the splanchnic circulation than in the peripheral circulation (0.52 ± 0.08 vs 0.38 ± 0.04, P < 0.02), whereas the peripheral circulating Ang /Ang ratio was elevated in comparison to splanchnic lev-els (0.18 ± 0.02 vs 0.13 ± 0.02, P < 0.04). Ang-(1-7)/Ang Ⅱ ratios positively correlated with cardiac output (r= 0.66) and negatively correlated with systemic vascular resistance (r =-0.70).CONCLUSION: Our ndings suggest that the relation-ship between Ang-(1-7) and Ang Ⅱmay play a role in the hemodynamic changes ofhuman cirrhosis. | Walkíria Wingester Vilas-Boas Antnio Ribeiro-Oliveira Jr Regina Maria Pereira Renata da Cunha Ribeiro Jerusa Almeida Ana Paula Nadu Ana Cristina Simoes e Silva Robson Augusto Souza dos Santos | 2009 | World Journal of Gastroenterology2009，15，20： | 11 |
| 2 | 猪超剂量饲喂植酸酶——饲料性能改善上的一场革命显示文摘植酸是植物源性饲料中重要的抗营养成分,能促进内源性粘蛋白的分泌,结合矿物质,减少其可用性,降低氨基酸消化率,抑制内源性酶的活性。本文主要讨论如何通过超剂量(使用高剂量的植酸酶以确保几乎所有的植酸都被破坏)使用大肠杆菌植酸酶,以减少植酸相关的抗营养作用。1抗营养效应植酸能与锌、铜、铁和钙等矿物质螯合。 | 傅强 陈琳 Mike Bedford Carrie Walk | 2014 | 国外畜牧学(猪与禽)2014，0，4： | 3 |
| 3 | Manufacturing Titanium Metal Matrix Composites by Consolidating Matrix Coated Fibres显示文摘Titanium metal matrix composites (TiMMCs) reinforced by continuous silicon carbide fibres are being developedfor aerospace applications. TiMMCs manufactured by the consolidation of matrix-coated fibre (MCF) method offeroptimum properties because of the resulting uniform fibre distribution, minimum fibre damage and fibre volumefraction control. In this paper, the consolidation of Ti-6AI-4V matrix-coated SiC fibres during vacuum hot pressinghas been investigated. Experiments were carried out on multi-ply MCFs under vacuum hot pressing (VHP). Incontrast to most of existing studies, the fibre arrangement has been carefully controlled either in square or hexagonalarrays throughout the consolidated sample. This has enabled the dynamic consolidation behaviour of MCFs to bedemonstrated by eliminating the fibre re-arrangement during the VHP process. The microstructural evolution of thematrix coating was reported and the deformation mechanisms involved were discussed. | Hua-Xin PENGDepartment of Aerospace Engineering, University of Bristol, University Walk, Bristol, BS8 1TR, UK | 2005 | Journal of Materials Science & Technology2005，21，5： | 3 |
| 4 | 微生物植酸酶和氧化锌对断奶仔猪生产性能和血清微量元素的影响显示文摘杂交猪(n=288,日龄21±3d,体重7.1±0.2kg)经42d饲养试验,研究微生物植酸酶和不同水平的氧化锌对断奶仔猪生产性能和血清微量元素的影响。仔猪(6头阉割的公猪或母猪每栏)随机分组,采用2×3因子设计,2种水平的植酸酶(0FTU/kg和2500FTU/kg)和3种水平的氧化锌(0mg/kg、1,750mg/kg、2,500mg/kg,锌的有效含量为72%),每个试验组包含4栏阉割的公猪和4栏母猪。日粮营养成分包括钙磷等均超过营养需要量,试验分0-21d(阶段1)和22-42d(阶段2)。在阶段1,阶段2及整个42d试验期间,氧化锌和植酸酶相互作用对仔猪生产性能、血清锌、血清磷的含量没有显著影响(P〉0.05)。无论添加何种水平的氧化锌,植酸酶显著增加了阶段1仔猪日采食量(P=0.01)和日增重(P=0.02),显著改善了整个试验期间的日增重(P=0.01)。日粮添加氧化锌显著降低了日增重(P=0.05),3,500mg/kg氧化锌降低了阶段2猪的饲料转化效率。阶段1中,在不添加氧化锌的条件下植酸酶增加了血清钙的含量,这表明,氧化锌和植酸酶有显著的相互作用(P=0.02)。当氧化锌在阶段1中的日粮添加水平增加时,血清锌含量极显著线性增加(P〈0.001),血清磷含量显著降低(P=0.05)。在阶段2中,随着氧化锌在日粮中的添加水平增加,血清钙的含量显著降低(P=0.04),血清锌的含量显著增加(P=0.02)。植酸酶极显著增加了阶段1中仔猪血清锌(P=0.009)和磷(P=0.001)的水平。在阶段2中,添加植酸酶对血清磷的含量没有影响。总之,在本试验中,日粮添加氧化锌降低了仔猪的生产性能。在钙和磷充足的日粮中,无论添加何种的氧化锌,添加植酸酶均能够改善日增重,这可能是由于植酸中抗营养因子含量的降低。另外,通过植酸的水解产生植酸酶,从而降低了植酸-锌的相互作用并增加了血清锌、钙和磷的含量。然而,日粮添加氧化锌增加了血清锌的含量,导致降低了血清磷和钙的含量,表明钙-锌-磷存在拮抗作用。另外,植酸酶仅仅在不添加锌的条件下能够增加血清钙的含量,进一步表明血清锌、钙和磷有复杂的相互作用。 | 王继强 Walk C Srinongkote S Wilcock P | 2015 | 饲料与畜牧(新饲料)2015，，3： | 2 |
| 5 | Effect of propranolol on the splanchnic and peripheral renin angiotensin system in cirrhotic patients显示文摘AIM:To evaluate the effect of β-blockade on angiotensins in the splanchnic and peripheral circulation of cirrhotic patients and also to compare hemodynamic parameters during liver transplantation according to propranolol pre-treatment or not. METHODS:Patients were allocated into two groups:outpatients with advanced liver disease(LD) and during liver transplantation(LT). Both groups were subdivided according to treatment with propranolol or not. Plasma was collected through peripheral venipuncture to determine plasma renin activity(PRA),Angiotensin(Ang) Ⅰ,Ang Ⅱ,and Ang-(1-7) levels by radioimmunoassay in LD group. During liver transplantation,hemodynamic parameters were determined and blood samples were obtained from the portal vein to measure renin angiotensin system(RAS) components.RESULTS:PRA,Ang Ⅰ,Ang Ⅱ and Ang-(1-7) were signifi cantly lower in the portal vein and periphery in all subgroups treated with propranolol as compared to non-treated. The relationships between Ang-(1-7) and Ang Ⅰ levels and between Ang Ⅱ and Ang Ⅰ were significantly increased in LD group receiving propranolol. The ratio between Ang-(1-7) and Ang Ⅱ remained unchanged in splanchnic and peripheral circulation in patients under β-blockade,whereas the relationship between Ang Ⅱ and Ang Ⅰ was significantly increased in splanchnic circulation of LT patients treated with propranolol. During liver transplantation,cardiac output and index as well systemic vascular resistance and index were reduced in propranolol-treated subgroup. CONCLUSION:In LD group,propranolol treatment reduced RAS mediators,but did not change the ratio between Ang-(1-7) and Ang Ⅱ in splanchnic and peripheral circulation. Furthermore,the modification of hemodynamic parameters in propranolol treated patients was not associated with changes in the angiotensin ratio. | Walkíria Wingester Vilas-Boas Antnio Ribeiro-Oliveira Jr Renata da Cunha Ribeiro Renata Lúcia Pereira Vieira Jerusa Almeida Ana Paula Nadu Ana Cristina Sim■es e Silva Robson Augusto Souza Santos | 2008 | World Journal of Gastroenterology2008，14，44： | 2 |
| 6 | Recent developments in self-powered smart chemical sensors for wearable electronics显示文摘The next generation of electronics technology is purely going to be based on wearable sensing systems. Wearable electronic sensors that can operate in a continuous and sustainable manner without the need of an external power sources, are essential for portable and mobile electronic applications. In this review article, the recent progress and advantages of wearable self-powered smart chemical sensors systems for wearable electronics are presented. An overview of various modes of energy conversion and storage technologies for self-powered devices is provided. Self-powered chemical sensors (SPCS) systems with integrated energy units are then discussed, separated as solar cell-based SPCS, triboelectric nano-generators based SPCS, piezoelectric nano-generators based SPCS, energy storage device based SPCS, and thermal energy-based SPCS. Finally, the outlook on future prospects of wearable chemical sensors in self-powered sensing systems is addressed. | Aaryashree Surjit Sahoo Pravin Walke Saroj Kumar Nayak Chandra Sekhar Rout Dattatray J.Late | 2021 | Nano Research2021，14，11： | 2 |
| 7 | Design Issues of Self-organizing Broadband Wireless Networks 显示文摘 | XU B WALK B | 2001 | Computer Networks2001，37，1： | 1 |
| 8 | The Third Wave:Current Trends in Regional Governance显示文摘 | Walks Allan D | 1994 | National Civic Review1994，83，3： | 1 |
| 9 | Therapy insight:malig- nant primary cardiac tumors 显示文摘 | Reardon MJ Walkes JC Benjamin R | 2006 | Nat Clin Pract Cardiovasc Med2006，3，10： | 1 |
| 10 | Applicators for a weed pathogen plus acifluorfen in soybeans 显示文摘 | Khodayari K Smith RJ Walke JT | 1987 | Weed Technology1987，1，： | 1 |
| 11 | Range-Doppler Imaging of Rotating Objects 显示文摘 | Walk J L | 1980 | IEEE Transon AES1980，16，1： | 1 |
| 12 | Relay based deployment concepts for wireless and mobilebroadband radio 显示文摘 | Pabst R Walke B H Schultz D C | 2004 | IEEE Communications Maga- zine2004，42，9： | 1 |
| 13 | The interation between eommereial objectivesand city-centremixed-use development显示文摘 | WALKE F | 2003 | Journal of Retailand Leisure Property2003，，3： | 1 |
| 14 | Thermal and spectral properties of 2,3-,2,4-and 3,4-dimethoxybenzoates of light lanthanides显示文摘 | Ferenc W Walków-Dziewulska A | | 0，，03： | 1 |
| 15 | Capital and industrial location显示文摘 | Walke R Storper M | 1981 | Prog ress in Human Geography1981，，5： | 1 |
| 16 | Effect of L-ascorbic acid pretreatment on cadmium toxicity in the male Fischer (F344/NCr) rat显示文摘 | Shiraishi N Uno H Walkes M P | 1993 | Toxicology1993，85，23： | 1 |
| 17 | Cryptic lineages of the genus Escherichia coli显示文摘 | Walk S T Aim E W Gordon D M | 2009 | Appl Environ Microbiol2009，75，： | 1 |
| 18 | Group Size Effects in Public Goods Provision:The Voluntary Contributions Mechanism显示文摘 | Isaac M.R Walk J.M | | 0，，01： | 1 |
| 19 | IEEE 802 Wireless Systems - Protocols, Multi - Hop Mesh/Rdaying 显示文摘 | Walke B Marigold A Berlemann L | 2006 | Performance and Spectrum Coexistence2006，19，： | 1 |
| 20 | Determination of total menstrual blood loss显示文摘 | WYATT KM DIMMOCK PW WALKE TJ | 2001 | Fertil Steril2001，76，1： | 1 |
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