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10190篇 您的检索式:作者名="TF"
    题名 作者 年代 出处 被引量
1Analysis of the phosphatidylinosit ol 3'-kinase signaling pathway in glioblastoma patients in vivo显示文摘Deregulated signaling through the p hosphatidylinositol 3-kinase(PI3K)pathway is common in many types of can cer,including glioblastoma.Dissecting the molecular events associated with activation of this pathway in glioblastoma p atients in vivo presents an important challenge that has implic ations for the development and clini cal testing of PI3K pathway inhibito rs.Using an immunohistochemical analysis appl ied to a tissue microarray,we performed hierarchical clustering and mul tidimensional scaling,as well as univariate and multivariate analyses,to dissect the PI3K pathway in v ivo.We demonstrate that loss of the t umor suppressor protein PTEN,which antagonizes PI3K pathwa y activation,is highly correlated w ith activation of the main PI3K effec tor Akt in vivo.We also show that Akt activation is signific antly correlated with phosphorylation of mammalian target of rapamycin(mTOR),the family of forkhead transcription factors(FOXO1,FOXO3a,and FOXO4),and S6,which are thought to promote its effects.Expression of the mutan t epidermal growth factor receptor vIII is also tightly correlated with phosphorylation of these effectors,d emonstrating an additional route to PI3K pathway activation in glioblastomas in vivo.These results provide the first dissection of the PI3K path way in glioblastoma in vivo and suggest an approach to stratifying patients for targeted kinase inhi bitorChoe G Horvath S Cloughesy TF Crosby K Seligson D Palotie A Inge L Smith BL Sawyers CL Mischel PS 2003癌症2003,22,7:41
2Achromatic super-oscillatory lenses with subwavelength focusing显示文摘Lenses are crucial to light-enabled technologies.Conventional lenses have been perfected to achieve near-diffraction-limited resolution and minimal chromatic aberrations.However,such lenses are bulky and cannot focus light into a hotspot smaller than a half-wavelength of light.Pupil filters,initially suggested by Toraldo di Francia,can overcome the resolution constraints of conventional lenses but are not intrinsically chromatically corrected.Here we report single-element planar lenses that not only deliver sub-wavelength focusing,thus beating the diffraction limit of conventional refractive lenses,but also focus light of different colors into the same hotspot.Using the principle of super-oscillations,we designed and fabricated a range of binary dielectric and metallic lenses for visible and infrared parts of the spectrum that are manufactured on silicon wafers,silica substrates and optical fiber tips.Such low-cost,compact lenses could be useful in mobile devices,data storage,surveillance,robotics,space applications,imaging,manufacturing with light and spatially resolved nonlinear microscopies.Guang Hui Yuan Edward TF Rogers Nikolay I Zheludev 2017Light(Science & Applications)2017,6,1:10
3海洋天然产物的药物开发显示文摘从海洋天然产物中发现药物近年来再次引起广泛关注。2004年12月,美国FDA批准了第1个源自海洋生物的止痛药齐考诺肽(ziconotide,Prialt),用于治疗疼痛。2007年10月欧盟了第1个抗癌海洋药物海鞘素(ecteinascid in,Yondelis)。本文将举例说明影响药物发现的因素和要完成一种化合物从海洋到临床试验的飞跃会遇到的各种困难,展望未来,分析海洋药物的乐观前景。王燕 乔善义 Mlinski TF Dalisay DS Lievens SL 2009国际药学研究杂志2009,36,4:8
4骨折相关性感染定义的共识显示文摘骨折相关性感染(fracture related infection,FRI)是创伤骨科一种常见的严重并发症.迄今为止,尚无明确定义,因此很难对该并发症带来的影响进行准确评估和对现有的研究展开比较.为解决这一难题,在AO基金会的支持下,我们成立了一个由科学家和医学专家组成的专家组,旨在对FRI定义达成的共识.Metsemakers WJ Morgenstern M McNally MA Moriarty TF McFadyen I Scarborough M Athanasou NA Ochsner PE Kuehl R Raschke M Borens O 谢肇 Velkes S Hungerer S Kates SL Zalavras C Giannoudis PV Richard RG Verhofstad MH 喻胜鹏 孙东 汪小华 2018中华骨科杂志2018,38,9:8
5放射性颌骨骨坏死拔牙的危险因素及作用:国家层面的队列研究显示文摘该文旨在研究接受放疗并发生放射性颌骨骨坏死(ORNJ)的头颈癌患者的相关危险因素,尤其是接受某种药物治疗后及牙的变化情况。23,527例头颈癌患者纳入研究,Cox比例风险模型用于危险因素分析。结果:ORNJ的总发生率为3.93/100人/年,颊癌患者发生ORNJ的风险最高。Wang TH Liu CJ Chao TF 张凌 2017中国口腔颌面外科杂志2017,15,3:4
6Interleukin-10 gene polymorphisms and hepatocellular carcinoma susceptibility:A meta-analysis显示文摘AIM: To assess the association between Interleu-kin-10 (IL-10) gene IL-10-1082 (G/A), IL-10-592(C/A), IL-10-819 (T/C) polymorphisms and hepatocellular carcinoma (HCC) susceptibility.METHODS: Two investigators independently searched the Medline, Embase, China National Knowledge Infrastructure, and Chinese Biomedicine Database. Summary odds ratios (ORs) and 95% conf idence intervals (95% CIs) for IL-10 polymorphisms and HCC were cal-culated in a fixed-effects model (the Mantel-Haenszel method) and a random-effects model (the DerSimonian and Laird method) when appropriate. RESULTS: This meta analysis included seven eligiblestudies, which included 1012 HCC cases and 2308 controls. Overall, IL-10-1082 G/A polymorphism was not associated with the risk of HCC (AA vs AG + GG, OR = 1.11, 95% CI = 0.90-1.37). When stratifying for ethnicity, the results were similar (Asian, OR = 1.12, 95% CI = 0.87-1.44; non-Asian, OR = 1.10, 95% CI = 0.75-1.60). In the overall analysis, the IL-10 polymorphism at position -592 (C/A) was identified as a genetic risk factor for HCC among Asians; patients carrying the IL-10-592*C allele had an increased risk of HCC (OR = 1.29, 95% CI = 1.12-1.49). No association was observed between the IL-10-819 T/C polymorphism and HCC susceptibility (TT vs TC + CC, OR = 1.02, 95% CI = 0.79-1.32).CONCLUSION: This meta-analysis suggests that IL-10-592 A/C polymorphism may be associated with HCC among Asians. IL-10-1082 G/A and IL-10-819 T/C polymorphisms were not detected to be related to the risk for HCC.Yong-Gang Wei, Fei Liu, Bo Li, Xi Chen, Yu Ma, Lv-Nan Yan, Tian-Fu Wen, Ming-Qing Xu, Wen-Tao Wang, Jia-Yin YangYong-Gang Wei, Fei Liu, Bo Li, Xi Chen, Yu Ma, Lv-Nan Yan, Tian-Fu Wen, Ming-Qing Xu, Wen-Tao Wang, Jia-Yin Yang, Department of Liver and Vascular Surgery, West China Hospital, Sichuan University, Chengdu 610041, Sichuan Prov- ince, China Author contributions: Wei YG and Liu F designed the study, collected and analyzed the data and wrote the manuscript Li B collected and analyzed the data and wrote the manuscript Chen X and Ma Y collected and analyzed the data Yan LN analyzed the data and contributed to the discussion Wen TF and Xu MQ revised the manuscript Wang WT and Yang JY contributed to the discussion Wei YG and Liu F contributed equally to this work. 2011World Journal of Gastroenterology2011,17,34:3
7Two-dimensional control of light with light on metasurfaces显示文摘The ability to control the wavefront of light is fundamental to focusing and redistribution of light,enabling many applications from imaging to spectroscopy.Wave interaction on highly nonlinear photorefractive materials is essentially the only established technology allowing the dynamic control of the wavefront of a light beam with another beam of light,but it is slow and requires large optical power.Here we report a proof-of-principle demonstration of a new technology for two-dimensional(2D)control of light with light based on the coherent interaction of optical beams on highly absorbing plasmonic metasurfaces.We illustrate this by performing 2D all-optical logical operations(AND,XOR and OR)and image processing.Our approach offers diffractionlimited resolution,potentially at arbitrarily-low intensity levels and with 100 THz bandwidth,thus promising new applications in space-division multiplexing,adaptive optics,image correction,processing and recognition,2D binary optical data processing and reconfigurable optical devices.Maria Papaioannou Eric Plum João Valente Edward TF Rogers Nikolay I Zheludev 2016Light(Science & Applications)2016,5,1:3
8Syntheses of 2-halo-4,5-difluorobenzoic acids 显示文摘Braish TF Fox DE 1991Org Prep Proced Int1991,23,5:3
9强化降压治疗期间估算的肾小球滤过率初始降低与长期肾功能:收缩压干预试验与控制糖尿病患者心血管病风险行动研究-血压随机对照试验的事后分析显示文摘血压降低可导致估算的肾小球滤过率(estimated glomerular filtration rate,eGFR)的初始下降,但eGFR降低多少可以接受仍存在争议。研究人员对控制糖尿病心血管病风险行动(action to control cardiovascular risk in diabetes,ACCORD)-血压研究及收缩压干预试验(systolic blood pressure intervention trial,SPRINT)进行事后分析,两项研究均随机将患者分为强化或标准收缩压靶目标治疗。赵狄(译) 刘莉(校) Collard D Brouwer TF Engberink RHGO Zwinderman AH Vogt L Born BJH 2020中华高血压杂志2020,28,5:3
10New initiatives for the control of Japanese encephalitis by vaceination: Minutes of a WHO/CVI meeting, Bangkok, Thailand, 13-15 October 1998显示文摘Tsai TF 2000Vaccine2000,18,:2
11Correlation of the angioarchitectural features of cerebral arteriovenous malformations with clinical presentafion of hemorrhage显示文摘Jurjman F Massoud TF Vinula F 1995Neurosurgergy1995,39,6:2
12Voriconazole versus amphotericin B for primary therapy of invasive aspergillosis显示文摘Herbrecht R Denning DW Patterson TF 0,,:2
13密封涂碳光纤碳涂层的电阻特性显示文摘本文研究了密封光纤碳涂层电阻特性与光纤可靠性之间的关系后,得出:最佳的碳涂层电阻能提高光纤抗疲劳性能,并为研制长长度、高强度和高可靠性涂层密封光纤提供了实验依据。竺逸年 Mors.,TF 1995光通信研究1995,,2:2
14Effects of growth factors and estrogen on the development of septal cholinergic neurons from the rat 显示文摘Mudd LM Torres J Lopez TF 1998Brain Res Bull1998,45,2:2
15Cyclooxygenase-2 contributes to N-methyl-D-aspartate-mediated neuronal cell death in primary cortical cell culture显示文摘Hewett SJ Uliasz TF Vidwans AS 2000J Pharmacol Exp Ther2000,293,2:2
16在接受治疗的急性冠状动脉综合征患者中,肌钙蛋白峰值与长期缺血事件之间的关系显示文摘非ST段抬高急性冠状动脉综合征(acutecoro-narysyndromes,ACS)患者肌钙蛋白水平与结局的关系虽然已经明确,但接受抗血小板治疗管理的非ST段抬高ACS患者肌钙蛋白水平与长期结局的关系尚未明确。刘莉 叶鹏 Goldstein SA Newby LK Cyr DD Neely M Lüscher TF Brown EB White HD Ohman EM Roe MT Hamm CW 2017中华高血压杂志2017,25,5:2
17A preliminary validation of the Brief COPE instrument for assessing coping strategies among people living with HIV in China显示文摘Background:The Brief COPE instrument has been utilized to conduct research on various populations,including people living with HIV(PLWH).However,the questionnaire constructs when applied to PLWH have not been subjected to thorough factor validation.Methods:A total of 258 PLWH were recruited from two provinces of China.They answered questions involving the scales of three instruments:the Brief COPE,the Perceived Social Support Scale,and the Perceived Discrimination Scale for PLWH.Confirmatory factor analysis(CFA)and exploratory factor analysis(EFA)were conducted.Results:The CFA found a poor goodness of fit to the data.The subsequent EFA identified six preliminary factors,forming subscales with Cronbach’s alphas,which ranged from 0.61 to 0.80.Significant correlation coefficients between the subscales and measures of perceived social support and perceived discrimination were reported,giving preliminary support to the validity of the new empirical factor structure.Conclusion:This study showed that the original factor structure of the Brief COPE instrument,when applied to PLWH in China,did not fit the data.Thus,the Brief COPE should be applied to various populations and cultures with caution.The new factor structure established by the EFA is only preliminary and requires further validation.Xiao-you Su Joseph TF Lau Winnie WS Mak KC Choi Tie-jian Feng Xi Chen Chu-liang Liu Jun Liu De Liu Lin Chen Jun-min Song Yan Zhang Guang-lu Zhao Zhang-ping Zhu Jin-quan Cheng 2015Infectious Diseases of Poverty2015,4,1:2
18Clinical evaluation of submucosal colonic lipomas: Decision making显示文摘甚至脂肪瘤是胃肠道的最普通的间充质的良性瘤,征兆的结肠的表示是稀罕的。此处,我们评估了受不了结肠的脂肪瘤的各种各样的尺寸的四个病人并且由不同治疗学的形式来临了。Oge Tascilar Güldeniz Karadeniz Cakmak Banu Dogan Gün Bülent Hamdi U(?)an Hakan Balbaloglu Ali Cesur Ali Ugur Emre Mustafa Comert Lütfü Oktay Erdem Selim Aydemir 2006World Journal of Gastroenterology2006,12,31:2
19角裂缺陷的改善显示文摘角裂形式的表面缺陷对负的铸坯质量影响很大,其发生在包晶碳钢的可能性大于其他含碳范围的钢。SP厂首先对角裂的产生机理作了调查,分析了喷雾冷却水系统和浇注宽度。此外还对影响包晶低碳钢种角裂的铸机操作和设备进行了研究。通过对保护渣的物性以及对结晶器铜板结构的改进,改善了铸坯在结晶器内的传热均匀性;又通过对振动器设计的修改和对操作管理的加强,减少了作用在铸坯坯壳上的应力。同时对二冷方式也进行了修改。Kapp.,TF 职建军 1995世界钢铁1995,,1:2
20A New Approach to Isothermal Precipitation Kinetics of Carbides显示文摘A new approach to isothermal precipitation kinetics of carbides in undercooled austenite has been proposed firstly, which is based on measuring the changes of Ms point vs holding time at a certain temperature. The isothermal precipitation kinetics (PTT) Curve of carbides was obtained by the use of the method for 13Cr-8Mn-0.07N stainless steel, and compared with the results of chemical phase analysis and TEM method. The results show that the new method is more sensitive and convenient than the other methods.Fu, WT Wang, Z Jing, TF Zheng, YZ Ma, JG 1998Journal of Materials Science & Technology1998,14,5:2
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