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415篇 您的检索式:作者名="Iskander"
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1Subcurative 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 2014Chinese Journal of Cancer2014,33,3:5
2A transparent aqueous-saturated sand surrogate for use in physical modeling显示文摘Ivan L. Guzman Magued Iskander Eduardo Suescun-Florez Mehdi Omidvar 2014Acta Geotechnica2014,,2:3
3Prognostic utility of myocardial viability assessment显示文摘ISKANDER S ISKANDRIAN A E 1999Am J Cardiology1999,83,5:2
4癌症筛查之未来显示文摘1引言癌症已成为美国的第二大致死病因,52%的人死于肺癌、支气管癌、女性乳腺癌、宫颈癌、结直肠癌、口腔及咽喉癌、前列腺癌和皮肤癌(黑色素瘤)。19世纪30年代,包括宫颈癌在内的子宫癌,位居美国女性癌症死亡第一位。50年代,随着巴氏涂片技术(Pap test)的应用,可以在细胞水平检测宫颈的变化,宫颈癌死亡率显著降低,这是第一个癌症筛查检测技术。此后,已有多种影像学检查(例如乳腺癌钼靶X线、内窥镜检查和计算机体层扫描)和实验室检测方法(粪便隐血试验)用于癌症筛检。Cheryll C.Thomas Thomas B.Richards Marcus Plescia Faye L.Wong Rachel Ballard Theodore R.Levin Bruce N.Calonge Otis W.Brawley John Iskander 徐海燕(翻译) 陆仁敏(审校) 蔡颖(审校) 2017上海预防医学2017,29,3:2
5Accuracy of Orbscan pachymetry measurements and DHG ultrasound pachymetry in primary laser in situ keratomileusis and LASIK enhancement procedures显示文摘Nader G Iskander Ellen Anderson Penno N.Timothy Peters Howard V Gimbel Maria Ferensowicz 2001Journal of Cataract & Refractive Surgery2001,,5:2
6Risk factors for neurotoxicity in newborns with severe neonatal hyperbilirubiuemia显示文摘Gamaleldin R Iskander I Seoud I 2011Pediatrics2011,128,4:1
7Surveillance for safety after immunization: Vaccine Adverse Event Reporting System (VAERS)- United States, 1991-2001显示文摘Zhou W Pool V Iskander JK 2003MMWR Surveill Suture2003,52,1:1
8Surveillance for safety af- ter immunization: vaccine adverse event reporting system-Unit- ed States 1991-2001显示文摘Zhou W Pool V Iskander J K 2002Pediatrics2002,110,6:1
9Prevention and Control of Influenza with Vaccines Recommendations of the Advisory Committee on Immunization Practices (ACIP), 2010显示文摘Fiore Anthony E Uyeki Timothy M Broder Karen Finelli Lyn Euler Gary L Singleton James A Iskander John K Wortley Pascale M Shay David K Bresee Joseph S Cox Nancy J 2010MMWR. Morbidity and Mortality Weekly Report2010,,:1
10Investigation of structural requirements of anticancer activity at the paclitaxel/tubulinbinding site using CoMFA and CoMSIA显示文摘Islam MN Song Y Iskander MN 2003J Mol Graph Model2003,21,4:1
11Metallothionein induction in human CNS in vitro: neuroprotection from ionizing radiation 显示文摘Cai L Cherian MG Iskander S 2000Radiat Biol2000,76,7:1
12Intravenous administrationof human umbilical cord blood-derived AC133+ endothelial progenitorcells in rat stroke model reduces infarct volume: magnetic resonanceimaging and histological findings 显示文摘Iskander A Knight RA Zhang ZG 2013Stem Cells Transl Med2013,2,9:1
13Analytical level crossing rates and average fade durations for diversity techniques in Nakagami fading channels显示文摘 MATHIOPOULOS P 2002IEEE Transaction on Communications2002,50,8:1
14A survey of scheduling rules显示文摘PANWALKAR S S ISKANDER W 1977Operations Research1977,25,1:1
15Coordination compounds of hydrazine derivatives with transition metals III: The reaction of aroyl hydrazones with Ni( Ⅲ ) and Cu ( Ⅱ ) salts显示文摘Sayed L E Iskander M F 1971J Inorg Nucl Chem1971,33,2:1
16Long-term filtration and visual field outcomes after primary glaucoma triple procedure with and without mitomycin-C显示文摘Shin DH Iskander NG Ahee JA 2002Ophthalmology2002,109,9:1
17State of the practice review in FRP composite piling 显示文摘ISKANDER M G HASSAN M 1998Journal of Composites for Construction1998,2,3:1
18显示文摘ISLAM M N SONG Y ISKANDER M N 2003Journal of Molecular Graphics and Modelling2003,21,4:1
19Coordination compounds of hydrazine derivatives with transition metals. Part 27. Coordination chemistry of 4-amino-3-alkyl-5-thio-1,2,4-triazolines and 4-amino-5-oxo-3-thioxo-6-alkyl-2,3,4,5-tetrahydro-1,2,4-triazines显示文摘Magdi F. Iskander Josefe Stephanos Nagwa El Kady Mohyi El Essawi Ahmed El Toukhy Laila El Sayed 1989Transition Metal Chemistry1989,,1:1
20Root causes for late presentation of severe neonatal hyperbilirubinaemia in Egypt显示文摘Iskander I Gamaleldin R Kabbani M 2012East Mediterr Health J2012,18,8:1
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