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| 1 | 利用铅同位素比值判断丹参不同产地来源显示文摘建立了用微柱流动注射与电感耦合等离子体质谱联用的铅同位素比值测量方法。利用铅与 5 磺基 8 羟基喹啉的螯合反应在线分离测定丹参样品中的铅同位素比值 ,并利用铅同位素比值的分布进行中药丹参产地来源的研究。实验结果表明 ,相同地区来源的丹参样品其铅同位素比值分布相对集中 ,而不同地区来源的丹参 ,铅的同位素比值则有明显的区别。因此 。 | 黄志勇 杨妙峰 庄峙厦 王小如 Frank S C Lee | 2003 | 分析化学2003,31,9: | 30 |
| 2 | 加速溶剂萃取-高效液相色谱-电喷雾飞行时间质谱联用分析莲子心中生物碱显示文摘建立了加速溶剂萃取-高效液相色谱-电喷雾飞行时间质谱(ASE-HPLC-DAD-ESI-TOF/MS)联用技术分析莲子心中生物碱类化合物的方法。采用ASE法对药材进行提取,萃取温度为100℃,压力为9646kPa,时间为10min。采用HPLC-DAD-ESI-TOF/MS联用技术对其中的化学成分进行了分离鉴定,HPLC采用AgilentEclipseXDB-C18色谱柱;流动相为0.1%三乙胺溶液,用氨水调pH=8.0(A),色谱纯乙腈(B),梯度洗脱;进样量为20μL,流速:1.0mL/min;检测波长:282nm。ESI-TOF/MS采用正离子电离模式,毛细管电压:4500V;喷雾气压:310.05kPa;干燥气(N2)流速:10.0L/min;干燥气温度:350℃,破碎电压:150V。鉴定了其中的6种生物碱分别为:前荷叶碱、莲心季铵碱、莲心碱、异莲心碱、荷叶碱和甲基莲心碱。 | 李文龙 陈军辉 殷月芬 王小如 Frank S C Lee | 2008 | 分析化学2008,36,1: | 24 |
| 3 | GAP质控下栽培丹参重金属内控标准物的制备和表征显示文摘目的 :用GAP质控下栽培的中药丹参作为重金属内控标准物 ,研究其制备和表征方法。方法 :采用四川中江GAP栽培条件下的丹参制备标准物 ,经浓硝酸 过氧化氢微波消解体系处理后用ICP MS测量其重金属含量 ,方法准确、可靠。结果 :用国家一级标准参考物质检验测量方法的准确性和精密度 ,回收率大部分在 90 %~110 % ,精密度小于 5%。结论 :经过不同实验室测试和不同时期稳定性测试的实验结果表明 ,丹参内控标准重金属含量的数据准确可靠 ,稳定性好 ,可作为丹参中药材重金属质量控制的参考标准 。 | 黄志勇 庄峙厦 王小如 Frank S CLee | 2003 | 中国中药杂志2003,28,9: | 23 |
| 4 | Clinical outcome and predictors of survival after TIPS insertion in patients with liver cirrhosis显示文摘AIM:To determine the clinical outcome and predictors of survival after transjugular intrahepatic portosystemic stent shunt (TIPS) implantation in cirrhotic patients. METHODS:Eighty-one patients with liver cirrhosis and consequential portal hypertension had TIPS implantation (bare metal) for either refractory ascites (RA) (n= 27) or variceal bleeding (VB) (n = 54). Endpoints for the study were:technical success, stent occlusion and stent stenosis, rebleeding, RA and mortality. Clinical records of patients were collected and analysed. Baseline characteristics [e.g., age, sex, CHILD score and the model for end-stage liver disease score (MELD score), underlying disease] were retrieved. The Kaplan-Meier method was employed to calculate survival from the time of TIPS implantation and comparisons were made by log rank test. A multivariate analysis of factors influencing survival was carried out using the Cox proportional hazards regression model. Results were expressed as medians and ranges. Comparisons between groups were performed by using the Mann-Whitney Utest and the χ 2 test as appropriate. RESULTS:No difference could be seen in terms of age, sex, underlying disease or degree of portal pressure gradient (PPG) reduction between the ascites and the bleeding group. The PPG significantly decreased from 23.4 ± 5.3 mmHg (VB) vs 22.1 ± 5.5 mmHg (RA) before TIPS to 11.8 ± 4.0 vs 11.7 ± 4.2 after TIPS implantation (P = 0.001 within each group). There was a tendency towards more patients with stage CHILD A in the bleeding group compared to the ascites group (24 vs 6, P = 0.052). The median survival for the ascites group was 29 mo compared to > 60 mo for the bleeding group (P = 0.009). The number of radiological controls for stent patency was 6.3 for bleeders and 3.8 for ascites patients (P = 0.029). Kaplan-Meier calculation indicated that stent occlusion at first control (P = 0.027), ascites prior to TIPS implantation (P = 0.009), CHILD stage (P = 0.013), MELD score (P = 0.001) and those patients not having undergone liver transplantation (P = 0.024) were significant predictors of survival. In the Cox regression model, stent occlusion (P = 0.022), RA (P = 0.043), CHILD stage (P = 0.015) and MELD score (P = 0.004) turned out to be independent prognostic factors of survival. The anticoagulation management (P = 0.097), the porto-systemic pressure gradient (P= 0.460) and rebleeding episodes (P = 0.765) had no significant effect on the overall survival. CONCLUSION:RA, stent occlusion, initial CHILD stage and MELD score are independent predictors of survival in patients with TIPS, speaking for a close follow-up in these circumstances. | Hauke S Heinzow Philipp Lenz Michael Khler Frank Reinecke Hansjrg Ullerich Wolfram Domschke Dirk Domagk Tobias Meister | 2012 | World Journal of Gastroenterology2012,18,37: | 17 |
| 5 | Model for end-stage liver disease score versus Child score in predicting the outcome of surgical procedures in patients with cirrhosis显示文摘AIM:To determine factors affecting the outcome of patients with cirrhosis undergoing surgery and to compare the capacities of the Child-Turcotte-Pugh(CTP) and model for end-stage liver disease(MELD)score to predict that outcome. METHODS:We reviewed the charts of 195 patients with cirrhosis who underwent surgery at two teaching hospitals over a five-year period.The combined endpoint of death or hepatic decompensation was considered to be the primary endpoint. RESULTS:Patients who reached the endpoint had a higher MELD score,a higher CTP score and were more likely to have undergone an urgent procedure.Among patients undergoing elective surgical procedures,no statistically significant difference was noted in the mean MELD(12.8±3.9 vs 12.6±4.7,P=0.9)or in the mean CTP(7.6±1.2 vs 7.7±1.7,P=0.8)between patients who reached the endpoint and those who did not.Both mean scores were higher in the patients reaching the endpoint in the case of urgent procedures(MELD:22.4± 8.7 vs 15.2±6.4,P=0.0007;CTP:9.9±1.8 vs 8.5±1.8, P=0.008).The performances of the MELD and CTP scores in predicting the outcome of urgent surgery were only fair,without a significant difference between them (AUC=0.755±0.066 for MELD vs AUC=0.696±0.070 for CTP,P=0.3). CONCLUSION:The CTP and MELD scores performedequally,but only fairly in predicting the outcome of urgent surgical procedures.Larger studies are needed to better define the factors capable of predicting the outcome of elective surgical procedures in patients with cirrhosis. | Maarouf A Hoteit Amaar H Ghazale Andrew J Bain Eli S Rosenberg Kirk A Easley Frank A Anania Robin E Rutherford | 2008 | World Journal of Gastroenterology2008,14,11: | 16 |
| 6 | 应用热等离子体技术处理污染物的研究进展显示文摘介绍了应用于处理环境污染物的各种热等离子体技术及其特点,突出介绍了新兴的电感耦合等离子体技术的发展。评述了近期用于污染物处理的等离子体研究领域的几个重要方向,并简略介绍了作者实验室的一些实验结果。 | 王小如 陈登云 孙大海 杨芃原 Frank S CLee | 1999 | 化学通报1999,,4: | 15 |
| 7 | 铁限制条件下东海原甲藻分泌铁载体显示文摘在铁限制条件下,进行东海原甲藻分泌铁载体的动态研究。对藻类在富铁与缺铁条件下生长状况、生长过程中分泌铁载体的情况以及海藻接种量对铁载体分泌的影响进行了连续观测,结果表明:东海原甲藻在缺铁条件下生长状况远不如在富铁条件下;随着藻类的生长,分泌铁载体不断增多,达指数生长期时,其分泌量也达到了最大值,之后藻类的生长和铁载体分泌都呈现下降趋势;高接种量东海原甲藻能分泌较多的铁载体,并在较短时间到达峰值。 | 王颜萍 何鹰 郑晓玲 陈发荣 李瑞香 Lee Frank S C 王小如 | 2005 | 生态学报2005,25,10: | 10 |
| 8 | Tolvaptan, an oral vasopressin antagonist, in the treatment of hyponatremia in cirrhosis显示文摘 | Andrés Cárdenas Pere Ginès Paul Marotta Frank Czerwiec John Oyuang Mónica Guevara Nezam H Afdhal | 2011 | Journal of Hepatology2011,,3: | 6 |
| 9 | Cholesterol crystal binding of biliary immunoglobulin A: visualization by fluorescence light microscopy显示文摘AIM To assess potential contributions of biliary IgA for crystal agglomeration into gallstones, we visualized cholesterol crystal binding of biliary IgA.METHODS Crystal-binding biliary proteins were extracted from human gallbladder bile using lectin affinity chromatography. Biliary IgA was isolated from the bound protein fraction by immunoaffinity chromatography. Pure cholesterol monohydrate crystals were incubated with biliary IgA and fluoresceine isothiocyanate (FITC)-conjugated anti-lgA at 37C. Samples were examined under polarizing and fluorescence light microscopy with digital image processing.RESULTS Binding of biliary IgA to cholesterol monohydrate crystals could be visualized with FITC-conjugated anti-lgA antibodies. Peak fluorescence occurred at crystal edges and dislocations. Controls without biliary IgA or with biliary IgG showed no significant fluorescence.CONCLUSION Fluorescence light microscopy provided evidence for cholesterol crystal binding of biliary IgA. Cholesterol crystalbinding proteins like IgA might be important mediators of crystal agglomeration and growth of cholesterol gallstones by modifying the evolving crystal structures in vivo. | Frank Lammert Stefan Südfeld Norbert Busch Siegfried Matern | 2001 | World Journal of Gastroenterology2001,7,2: | 6 |
| 10 | Subcurative radiation significantly increases cell proliferation, invasion, and migration of primary glioblastoma multiforme in vivo显示文摘Tumor cell proliferation, infiltration, migration, and neovascularization are known causes of treatment resistance in glioblastoma multiforme(GBM). The purpose of this study was to determine the effect of radiation on the growth characteristics of primary human GBM developed in a nude rat. Primary GBM cells grown from explanted GBM tissues were implanted orthotopically in nude rats. Tumor growth was confirmed by magnetic resonance imaging on day 77(baseline) after implantation. The rats underwent irradiation to a dose of 50 Gy delivered subcuratively on day 84 postimplantation(n = 8), or underwent no radiation(n = 8). Brain tissues were obtained on day 112(nonirradiated) or day 133(irradiated). Immunohistochemistry was performed to determine tumor cell proliferation(Ki-67) and to assess the expression of infiltration marker(matrix metalloproteinase-2, MMP-2) and cell migration marker(CD44). Tumor neovascularization was assessed by microvessel density using von-Willebrand factor(vWF) staining. Magnetic resonance imaging showed well-developed, infiltrative tumors in 11 weeks postimplantation. The proportion of Ki-67-positive cells in tumors undergoing radiation was(71 ± 15)% compared with(25 ± 12)% in the nonirradiated group(P = 0.02). The number of MMP-2-positive areas and proportion of CD44-positive cells were also high in tumors receiving radiation, indicating great invasion and infiltration. Microvessel density analysis did not show a significant difference between nonirradiated and irradiated tumors. Taken together, we found that subcurative radiation significantly increased proliferation, invasion, and migration of primary GBM. Our study provides insights into possible mechanisms of treatment resistance following radiation therapy for GBM. | Adarsh Shankar Sanath Kumar Asm Iskander Nadimpalli RS Varma Branislava Janic Ana deCarvalho Tom Mikkelsen Joseph A Frank Meser M Ali Robert A Knight Stephen Brown Ali S Arbab | 2014 | Chinese Journal of Cancer2014,33,3: | 5 |
| 11 | Efficacy of boceprevir, an NS3 protease inhibitor, in combination with peginterferon alfa-2b and ribavirin in treatment-naive patients with genotype 1 hepatitis C infection (SPRINT-1): an open-label, randomised, multicentre phase 2 trial显示文摘 | Paul Y Kwo Eric J Lawitz Jonathan McCone Eugene R Schiff John M Vierling David Pound Mitchell N Davis Joseph S Galati Stuart C Gordon Natarajan Ravendhran Lorenzo Rossaro Frank H Anderson Ira M Jacobson Raymond Rubin Kenneth Koury Lisa D Pedicone Clifford | 2010 | The Lancet2010,,9742: | 3 |
| 12 | Anticoagulation in simultaneous pancreas kidney transplantation - On what basis?显示文摘BACKGROUND Despite technical refinements,early pancreas graft loss due to thrombosis continues to occur.Conventional coagulation tests(CCT)do not detect hypercoagulability and hence the hypercoagulable state due to diabetes is left untreated.Thromboelastogram(TEG)is an in-vitro diagnostic test which is used in liver transplantation,and in various intensive care settings to guide anticoagulation.TEG is better than CCT because it is dynamic and provides a global hemostatic profile including fibrinolysis.AIM To compare the outcomes between TEG and CCT(prothrombin time,activated partial thromboplastin time and international normalized ratio)directed anticoagulation in simultaneous pancreas and kidney(SPK)transplant recipients.METHODS A single center retrospective analysis comparing the outcomes between TEG and CCT-directed anticoagulation in SPK recipients,who were matched for donor age and graft type(donors after brainstem death and donors after circulatory death).Anticoagulation consisted of intravenous(IV)heparin titrated up to a maximum of 500 IU/h based on CCT in conjunction with various clinical parameters or directed by TEG results.Graft loss due to thrombosis,anticoagulation related bleeding,radiological incidence of partial thrombi in the pancreas graft,thrombus resolution rate after anticoagulation dose escalation,length of the hospital stays and,1-year pancreas and kidney graft survival between the two groups were compared.RESULTS Seventeen patients who received TEG-directed anticoagulation were compared against 51 contemporaneous SPK recipients(ratio of 1:3)who were anticoagulated based on CCT.No graft losses occurred in the TEG group,whereas 11 grafts(7 pancreases and 4 kidneys)were lost due to thrombosis in the CCT group(P=0.06,Fisher’s exact test).The overall incidence of anticoagulation related bleeding(hematoma/gastrointestinal bleeding/hematuria/nose bleeding/re-exploration for bleeding/post-operative blood transfusion)was 17.65%in the TEG group and 45.10%in the CCT group(P=0.05,Fisher’s exact test).The incidence of radiologically confirmed partial thrombus in pancreas allograft was 41.18%in the TEG and 25.50%in the CCT group(P=0.23,Fisher’s exact test).All recipients with partial thrombi detected in computed tomography(CT)scan had an anticoagulation dose escalation.The thrombus resolution rates in subsequent scan were 85.71%and 63.64%in the TEG group vs the CCT group(P=0.59,Fisher’s exact test).The TEG group had reduced blood product usage{10 packed red blood cell(PRBC)and 2 fresh frozen plasma(FFP)}compared to the CCT group(71 PRBC/10 FFP/2 cryoprecipitate and 2 platelets).The proportion of patients requiring transfusion in the TEG group was 17.65%vs 39.25%in the CCT group(P=0.14,Fisher’s exact test).The median length of hospital stay was 18 days in the TEG group vs 31 days in the CCT group(P=0.03,Mann Whitney test).The 1-year pancreas graft survival was 100%in the TEG group vs 82.35%in the CCT group(P=0.07,log rank test)and,the 1-year kidney graft survival was 100%in the TEG group vs 92.15%in the CCT group(P=0.23,log tank test).CONCLUSION TEG is a promising tool in guiding judicious use of anticoagulation with concomitant prevention of graft loss due to thrombosis,and reduces the length of hospital stay. | Jeevan Prakash Gopal Frank JMF Dor Jeremy S Crane Paul E Herbert Vassilios E Papalois Anand SR Muthusamy | 2020 | World Journal of Transplantation2020,10,7: | 2 |
| 13 | Proteome analysis of human mesenchymal stem cells undergoing chondrogenesis when exposed to the products of various magnesium-based materials degradation显示文摘Treatment of physeal fractures(15%–30%of all paediatric fractures)remains a challenge as in approximately 10%of the cases,significant growth disturbance may occur.Bioresorbable Magnesium-based implants represent a strategy to minimize damage(i.e.,load support until bone healing without second surgery).Nevertheless,the absence of harmful effects of magnesium-implants and their degradation products on the growth plate should be confirmed.Here,the proteome of human mesenchymal stem cells undergoing chondrogenesis was evaluated when exposed to the products of various Magnesium-based materials degradation.The results of this study indicate that the materials induced regulation of proteins associated with cell chondrogenesis and cartilage formation,which should be beneficial for cartilage regeneration. | Adela Helvia Martínez Sánchez Maryam Omidi Marcus Wurlitzer Marceline Manka Fuh Frank Feyerabend Hartmut Schlüter Regine Willumeit-Römer Bérengère J.C.Luthringer | 2019 | Bioactive Materials2019,4,1: | 2 |
| 14 | Age-related macular degeneration显示文摘 | Laurence S Lim Paul Mitchell Johanna M Seddon Frank G Holz Tien Y Wong | 2012 | The Lancet . 2012 (9827)2012,,9827: | 2 |
| 15 | Polycystic ovary syndrome显示文摘 | Franks S | 1995 | N Engl J Med1995,333,13: | 2 |
| 16 | 轿车变速器的表面致密化粉末冶金齿轮的使用性能显示文摘选择性表面致密化是改进粉末冶金钢的一种方法,高负载齿轮经过这种加工工艺处理,就能达到使用要求。本文介绍了粉末冶金螺旋齿轮的制造工艺与性能,用三轴总成成对试验台架、承载能力试验台架及噪声试验台架测定了齿轮的使用性能,并把试验结果和具有同样几何形状与表面质量的锻钢齿轮的数据进行了比较。结果表明,粉末冶金齿轮的承载能力与噪声级可和锻钢齿轮相媲美。 | Cünter Rau Lorenz S Sigl Gerold Mrk Frank Wattenberg 韩凤麟 | 2012 | 粉末冶金技术2012,30,4: | 2 |
| 17 | High water solubility and fold in amphipols of proteins with large hydrophobic regions: Oleosins and caleosin from seed lipid bodies显示文摘 | Yann Gohon Jean-David Vindigni Agnès Pallier Frank Wien Hervé Celia Alexandre Giuliani Christophe Tribet Thierry Chardot Pierre Briozzo | 2010 | BBA - Biomembranes2010,,3: | 2 |
| 18 | 不同污染源海水样本的分类模型研究显示文摘简要介绍了偏最小二乘建立分类模型方法的原理及优点,将该方法应用于处理胶州湾和莱州湾的几个主要污染源附近海域各站点取得的海水样本的气-质联用全谱数据,建立海水样品的分类模型,以判别海水中有机污染物的来源区域。结果表明:由于PLS法适合于处理变量数多样本数少、具有严重多重共线性数据的问题,应用于从两类及多类海水样品气-质联用全谱数据中提取海水污染来源区域的分类信息,得到的分类模型交叉检验相关系数达0.91以上,结果较为理想,可为正确判别污染源提供一个可靠的基础。另外文章采用所得模型的拟合值等一些信息作分类图的方法,与传统PLS作图方法比较,所得分类图更为清晰、直观,能较好地表达回归模型的分类效果。 | 林燕 朱尔一 徐晓琴 LEE Frank S C 王小如 | 2007 | 光谱学与光谱分析2007,27,10: | 2 |
| 19 | Propranolol for the prevention of postoperative arrhythmias in general thoracic surgery显示文摘 | Charles D Bayliff David R Massel Richard I Inculet Richard A Malthaner Susan D Quinton Frank S Powell Renee S Kennedy | 1999 | The Annals of Thoracic Surgery1999,,1: | 2 |
| 20 | Emission from quantum-dot high-β microcavities: transition from spontaneous emission to lasing and the effects of superradiant emitter coupling显示文摘Measured and calculated results are presented for the emission properties of a new class of emitters operating in the cavity quantum electrodynamics regime.The structures are based on high-finesse GaAs/AlAs micropillar cavities,each with an active medium consisting of a layer of InGaAs quantum dots(QDs)and the distinguishing feature of having a substantial fraction of spontaneous emission channeled into one cavity mode(highβ-factor).This paper demonstrates that the usual criterion for lasing with a conventional(lowβ-factor)cavity,that is,a sharp non-linearity in the input–output curve accompanied by noticeable linewidth narrowing,has to be reinforced by the equal-time second-order photon autocorrelation function to confirm lasing.The paper also shows that the equal-time second-order photon autocorrelation function is useful for recognizing superradiance,a manifestation of the correlations possible in high-βmicrocavities operating with QDs.In terms of consolidating the collected data and identifying the physics underlying laser action,both theory and experiment suggest a sole dependence on intracavity photon number.Evidence for this assertion comes from all our measured and calculated data on emission coherence and fluctuation,for devices ranging from light-emitting diodes(LEDs)and cavity-enhanced LEDs to lasers,lying on the same two curves:one for linewidth narrowing versus intracavity photon number and the other for g(2)(0)versus intracavity photon number. | Sören Kreinberg Weng W Chow Janik Wolters Christian Schneider Christopher Gies Frank Jahnke Sven Höfling Martin Kamp Stephan Reitzenstein 无 | 2017 | Light(Science & Applications)2017,6,1: | 2 |