维普中文期刊产品整合服务
38篇 您的检索式:作者名="Frank A Roberts"
    题名 作者 年代 出处 被引量
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
2Environmental magnetism: Principles and applications显示文摘Liu Qingsong Roberts Andrew P Larrasoa?a Juan C Banerjee Subir K Guyodo Yohan Tauxe Lisa Oldfield Frank 2012EN2012,,4:3
3Human enamel thickness and ENAM polymorphism显示文摘The tooth enamel development gene, enamelin(ENAM), showed evidence of positive selection during a genome-wide scan of human and primate DNA for signs of adaptive evolution. The current study examined the hypothesis that a single-nucleotide polymorphism(SNP) C14625T(rs7671281) in the ENAM gene identified in the genome-wide scan is associated with a change in enamel phenotype. African Americans were selected as the target population, as they have been reported to have a target SNP frequency of approximately 50%, whereas non-Africans are predicted to have a 96% SNP frequency. Digital radiographs and DNA samples from 244 teeth in 133 subjects were analysed, and enamel thickness was assessed in relation to SNP status,controlling for age, sex, tooth number and crown length. Crown length was found to increase with molar number, and females were found to have thicker enamel. Teeth with larger crowns also had thicker enamel, and older subjects had thinner enamel.Linear regression and generalized estimating equations were used to investigate the relationship between enamel thickness of the mandibular molars and ENAM SNP status; enamel in subjects with the derived allele was significantly thinner(P = 0.040)when the results were controlled for sex, age, tooth number and crown length. The derived allele demonstrated a recessive effect on the phenotype. The data indicate that thinner dental enamel is associated with the derived ENAM genotype. This is the first direct evidence of a dental gene implicated in human adaptive evolution as having a phenotypic effect on an oral structure.Diane M Daubert Joanna L Kelley Yuriy G Udod Carolina Habor Chris G Kleist Ilona K Furman Igor N Tikonov Willie J Swanson Frank A Roberts 2016International Journal of Oral Science2016,8,2:2
4Progsterone receptors in bilateral ovarian ependymoma presennting in pregnaacy显示文摘Carr K A Roberts J A Frank T S 1992Human Pathol1992,23,:1
5On the stabil- ity properties of quadruped creeping gaits显示文摘MeGhee Robert B Frank Andrew A 1968Math- ematical Biosciences1968,3,:1
6A Dimensionless Model for Predicting the Mass - transfer Area of Structured Packing 显示文摘Robert E Tsai A Frank Seibert R Bruce Eldridge 2011Aiche Journal2011,57,5:1
7Microcalofimetry of the adsorption of lysozyme onto polymeric substrates显示文摘LEE Valerie A CRAIG Robert G FILISHO Frank E 2005Journal of Colloid and Interface Science2005,288,:1
8Hierarchical Multi pie Endmember Speetral Mixture Analysis (MESMA) of Hy- perspectral Imagery for Urban Environments 显示文摘Franke J Roberts D A Halligan K 2009Remote Sensing of Environment2009,113,8:1
9Progesterone receptors in bilat-eral ovarian ependymoma presenting in pregnancy 显示文摘Carr K A Roberts J A Frank T S 1992HumPathol1992,23,8:1
10Systematic Review: Repair of Unruptured Abdominal Aortic Aneurysm 显示文摘Frank A Lederle MD Robert L Kane MD 2007Ann Inter Med2007,146,10:1
11Influ- ence of' viscosity and surface tension on the effective mass transfer area of structured packing 显示文摘ROBERT E T FRANK A S BRUCE R E 2009Energy Procedia2009,,1:1
12Hierarchi-cal Multiple Endmembers Spectral Mixture Analysis(MESMA)of Hyperspectral Imagery for Urban En-vironments显示文摘Franke J Roberts D A Halligan K 2009Remote Sensing of Environment2009,113,1:1
13Evaluation of new vaccines in the mouse and guinea pig model of tuberculosis显示文摘Baldwin S L D'Souza C Roberts A D Kelly B P Frank A A Lui M A 1998Infect Immun1998,66,:1
14Soy protein concentrate lowers serum high-density lipoprotein cholesterol concentrations compared with casein in ovariectomized rats fed a low-fat cholesterolfree diet 显示文摘Thomas A Robert J Frank O 2007Nutr Res2007,27,:1
15Hierarchical multiple endmember spectral mixture analysis (MESMA) of hyperspectral imagery for urban environments显示文摘Franke J Roberts D A Halligan K 2009Remote Sensing of Environment2009,113,8:1
16Malignant glioma:genetics and biology of a grave matter显示文摘Elizabeth A Maher Frank B Furnari Robert M Bachoo 2001Genes Dev2001,15,11:1
17Clinical and Phar- macologic Review of Skeletal Muscle Relaxants for Musculo- skeletal Conditions显示文摘FRANK A B ROBERT LB STACIEBA 2005Ame Jour Therap2005,,12:1
18Lack of protection in mice and necrotizing bronchointerstitial pneumonia bron-chiolitis in sninea pigs immunized with vaccines directed against the HSP65 molecular of Mycobacterium tuberculosis显示文摘Turner O C Roberts A D Frank A A 2000Infect Immun2000,68,6:1
19Francis Insulin-like Growth Factor (IGF)-Ⅰ but Not IGF-Ⅱ Promotes Lean Growth and Feed Efficiency in Broiler Chickens显示文摘Frank M Tomas Robert A Pym John P 1998General and Comparative Endocrinology1998,,:1
20Lack of protection in mice and necrotizing bronchointerstitial pneumonia with bronchiolitis in guinea pigs immumized with vaccines directed against the hsp60 molecule of Mycobacterium tuberculosis显示文摘Turner O C Roberts A D Frank A A 2000Infect Immunol2000,68,6:1
返回顶部 每页显示:
共2页 首页 上一页 第1页 下一页 末页 /2 跳转

网站首页 | 关于我们 | 联系我们 | 产品服务 | 客服中心 | 广告服务 | 版权声明 | 网站联盟 | 友情链接 | 售卡网点

版权所有© 渝B2-20050021-1 渝公网安备 50019002500403号 违法和不良信息举报中心

互联网出版许可证 新出网证(渝)字10号 全国400电话 - 免长途话费