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464篇 您的检索式:作者名="JAMES A F"
    题名 作者 年代 出处 被引量
1Nat Med:靶向两分子或有助于彻底治愈白血病显示文摘科学家在癌细胞内发现两个信号蛋白能够让癌细胞抵抗化疗。研究表明阻断这两种蛋白能够增强化疗对人类白血病小鼠模型的治疗效果。相关研究结果发表在国际学术期刊NatureMedicine上。研究人员发现在治疗中阻断c-Fos和Dusp1这两个蛋白能够治愈一些受激酶驱动且抵抗治疗的白血病和实体瘤。Meenu Kesarwani, Zachary Kincaid, Ahmed Gomaa, Erika Huber, Sara Rohrabaugh, Zain Siddiqui, Muhammad F Bouso, Kakajan Komurov, James C Mulloy, Jose A Cancelas, H Leighton Grimes Mohammad Azam Tahir Latif Ming Xu H Leighton Grimes Mohammad Azam 2017现代生物医学进展2017,17,17:4
2经颈内静脉肝内门腔分流术远期疗效分析显示文摘目的:探讨经颈静脉肝内门脉分流术(TIPS)后病人的远期分流道通畅率,生存期和生活质量。材料及方法:51例TIPS术后病人,随访时间平均为16.8±12.8月(1天-49月),用Kaplan-Meier法分析TIPS后病人的远期生存率,和分流道通畅率。用COX模型将生存期和通畅率与Child~Pugh肝功能分级和主要症状作相关分析,并预测影响生存期和分流道通畅率的因素。用SF~36问卷评估病人的生活质量。结果:1-4年累计生存率分别为65%,56%,32%,19%。累计原发通畅率分别为65%,56%,32%,19%。42个月原发再次通畅率为94%,18个月4继发通畅率为7l%。肝功能Child-Pugh分级与累积生存率有显著性差异。影响TIPS术后90天生存率的相关因素有:酒精性肝硬化,腹水,急性出血,分流腔道直径,静脉曲张需栓塞者,肝性脑病,分流通道再狭窄及再发出血。TIPS术后生活质量的所有9项指标均较术前提高,其中4项有显著性差异。结论:TIPS对控制出血,腹水及改善近期生活质量有肯定的疗效,但是对病人远期生活率的确切作用尚有待于进一步的研究。滕皋军 Michael A Bettmann Robert F Jeffery James K St.George 1997介入放射学杂志1997,6,3:3
3Heterogeneity in mouse spasmolytic polypeptide-expressing metaplasia lineages identifies markers of metaplastic progression显示文摘Victoria G Weis Josane F Sousa Bonnie J LaFleur Ki Taek Nam Jared A Weis Paul E Finke Nadia A Ameen James G Fox James R Goldenring 2013Gut2013,,9:3
4MicroRNA-31 functions as an oncogenic microRNA in mouse and human lung cancer cells by repressing specific tumor suppressors显示文摘Liu Xi Sempere Lorenzo F Ouyang Haoxu Memoli Vincent A Andrew Angeline S Luo Yue Demidenko Eugene Korc Murray Shi Wei Preis Meir Dragnev Konstantin H Li Hua DiRenzo James Bak Mads Freemantle Sarah J Kauppinen Sakari Dmitrovsky Ethan 2010Journal of Clinical Investigation2010,,4:3
5Magnitude of modulation of gene expression in aneuploid maize depends on the extent of genomic imbalance显示文摘Aneuploidy has profound effects on an organism,typically more so than polyploidy,and the basis of this contrast is not fully understood.A dosage series of the maize long arm of chromosome 1(1L)was used to compa re relative global gene expression in diffe rent types and degrees of aneuploidy to gain insights into how the magnitude of genomic imbalance as well as hypoploidy affects global gene expression.While previously available methods require a selective examination of specific genes,RNA sequencing provides a whole-genome view of gene expression in aneuploids.Most studies of global aneuploidy effects have concentrated on individual types of aneuploids because multiple dose aneuploidies of the same genomic region are difficult to produce in most model genetic organisms.The genetic toolkit of maize allows the examination of multiple ploidies and 1-4 doses of chromosome arms.Thus,a detailed examination of expression changes both on the varied chromosome arms and elsewhere in the genome is possible,in both hypoploids and hyperploids,compared with euploid controls.Previous studies observed the inverse trans effect,in which genes not varied in DNA dosage were expressed in a negative relationship to the varied chromosomal region.This response was also the major type of changes found globally in this study.Many genes varied in dosage showed proportional expression changes,though some were seen to be partly or fully dosage compensated.It was also found that the effects of aneuploidy were progressive,with more severe aneuploids producing effects of greater magnitude.Adam F·Johnson Jie Hou Hua Yang Xiaowen Shi Chen Chen Md Soliman Islam Tieming Ji Jianlin Cheng James A·Birchler 2020Journal of Genetics and Genomics2020,47,2:3
6Resection of pancreatic cystic neoplasms in recurrent acute pancreatitis prevents recurrent pancreatitis but does not identify more malignancies显示文摘BACKGROUND Recurrent acute pancreatitis(RAP)may be a presenting feature of and an indication for resection of pancreatic cysts,including intra-ductal papillary mucinous neoplasm(IPMN).Few data are available regarding the prevalence of malignancy and post-operative RAP in this population.AIM To study the role of resection to help prevent RAP and analyze if presentation as RAP would be a predictor for malignancy.METHODS This retrospective study assessed 172 patients who underwent surgical resection of pancreatic cystic neoplasms at a university hospital between 2002 and 2016.The prevalence of preoperative high-risk cyst features,and of neoplasia was compared between patients with and without RAP.To identify the cause of pancreatitis,all the patients had a detailed history of alcohol,smoking,medications obtained,and had cross-sectional imaging(contrast-enhanced computed tomography/magnetic resonance imaging)and endoscopic ultrasound to look for gallstone etiology and other structural causes for pancreatitis.The incidence of RAP post-resection was the primary outcome.RESULTS IPMN accounted for 101 cases(58.7%){[branch duct(BD)59(34.3%),main duct(MD)42](24.4%)}.Twenty-nine(16.9%)presented with RAP(mean 2.2 episodes):15 had BD-IPMN,8 MD-IPMN,5 mucinous cystic neoplasm and 1 serous cystic neoplasm.Malignancy was similar among those with vs without RAP for all patients[6/29(20.7%)vs 24/143(16.8%)]and IPMN patients[6/23(26.1%)vs 23/78(29.5%)],although tended to be higher with RAP in BD-IPMN,[5/15(33.3%)vs 3/44(6.8%),P=0.04].At mean follow-up of 7.2 years,1(3.4%)RAP patient had post-resection RAP.The mean episodes of acute pancreatitis before vs after surgery were 3.4 vs 0.02(P<0.0001).CONCLUSION Malignancy was not increased in patients with pancreatic cystic neoplasms who have RAP compared to those without RAP.In addition,specific cyst characteristics were not clearly associated with RAP.The incidence of RAP was markedly decreased in almost all patients following cyst resection.Thiruvengadam Muniraj Harry R Aslanian Loren Laine Priya A Jamidar James F Farrell Kisha A Mitchell Ronald R Salem 2021World Journal of Gastroenterology2021,27,15:3
7Stratification of outcomes for mucinous appendiceal adenocarcinoma with peritoneal metastasis by histological grade显示文摘AIM To investigate the importance of a three-tiered histologic grade on outcomes for patients with mucinous appendiceal adenocarcinoma(MAA).METHODS Two hundred and sixty-five patients with MAA undergoing cytoreductive surgery and hyperthermic intraperitoneal chemotherapy were identified from a prospective database from 2004 through 2014. All pathology was reviewed by our gastrointestinal subspecialty pathologists and histological grade was classified as well-differentiated, moderately differentiated, and poorly differentiated. Survival analysis was performed using Cox proportional hazards regression.RESULTS There were 201(75.8%) well-, 45(16.9%) moderatelyand 19(7.2%) poorly-differentiated tumors. Histological grade significantly stratified the 5-year overall survival(OS), 94%, 71% and 30% respectively(P < 0.001) as well as the 5-year disease-free survival(DFS) 66%, 21% and 0%, respectively(P < 0.001). Independent predictors of DFS included tumor grade(HR = 1.78, 95%CI: 1.21-2.63, P = 0.008), lymph node involvement(HR = 0.33, 95%CI: 0.11-0.98, P < 0.02), previous surgical score(HR = 1.31, 95%CI: 1.1-1.65, P = 0.03) and peritoneal carcinomatosis index(PCI)(HR = 1.05, 95%CI: 1.02-1.08, P = 0.002). Independent predictors of OS include tumor grade(HR = 2.79, 95%CI: 1.26-6.21, P = 0.01), PCI(HR = 1.10, 95%CI: 1.03-1.16, P = 0.002), and complete cytoreduction(HR = 0.32, 95%CI: 0.11-0.92, P = 0.03). Tumor grade and PCI were the only independent predictors of both DFS and OS. Furthermore, histological grade and lymphovascular invasion stratified the risk of lymph node metastasis into a low(6%) and high(40%) risk groups. CONCLUSION Our data demonstrates that moderately differentiated MAA have a clinical behavior and outcome that is distinct from well-and poorly-differentiated MAA. The threetier grade classification provides improved prognostic stratification and should be incorporated into patient selection and treatment algorithms.Travis Edward Grotz Richard E Royal Paul F Mansfield Michael James Overman Gary N Mann Kristen Ashlee Robinson Karen A Beaty Safiea Rafeeq Auerlio Matamoros Michelle W Taggart Keith Francis Fournier 2017World Journal of Gastrointestinal Oncology2017,9,9:2
8The safety of tenofovir disoproxil fumarate for the treatment of HIV infection in adults: the first 4 years显示文摘Mark R Nelson Christine Katlama Julio S Montaner David A Cooper Brian Gazzard Bonaventura Clotet Adriano Lazzarin Knud Schewe Joep Lange Christina Wyatt Sue Curtis Shan-Shan Chen Stephen Smith Norbert Bischofberger James F Rooney 2007AIDS2007,,10:2
914 Years of Eosinophilic Esophagitis: Clinical Features and Prognosis显示文摘Jonathan M Spergel Terri F Brown-Whitehorn Janet L Beausoleil James Franciosi Michele Shuker Ritu Verma Chris A Liacouras 2009Journal of Pediatric Gastroenterology and Nutrition2009,,1:2
10Lactate is an unreliable indicator of tissue hypoxia in injury or sepsis显示文摘James J H Luchette F A McCarter F D 1999Lancet1999,354,9177:2
11Lactate is an unreliable indicator of tissue hypoxia in injury or sepsis显示文摘James J H Luchette F A Mccarter F D 1999Lancet1999,354,9177:1
12Pedagogical content knowing:An integrative model for teacher preparation显示文摘Cochran Kathryn F DeRuiter James A King Richard A 1993Journal of Teacher Education1993,44,4:1
13The interaction between water movement,sediment dynamics and submersed macrophyte显示文摘MADSEN J D CHAMBERS P A JAMES W F 2001Hydrobiologia2001,,444:1
14An interna for the determination of puri fled microcystin-LR and microcystins in cyanobacterial field material显示文摘JUTTA F GEOFFREY A C tional intercomparison exercise JAMES S 2002Anal Bioanal Chem2002,374,:1
15Thomashow components of the Arabidopsis C repeat/dehydration responsive element bindingfactor cold-response pathway are conserved in Brassica napus and other plant species显示文摘KIRSTEN R J SUSANNE K KEENAN L A XIN Z VOLKER H JAMES Z Z THOMAS D MICHAEL F 2001Plant Plzysiology2001,127,3:1
16Sucrose synthase in legume modules is essential for nitrogen fixation显示文摘GORDON A J MINCHIN F R JAMES C L 1999Plant Physiol1999,120,3:1
17Synthesis of a CrCoAPO-5(AFI) molecular sieve and its activity in cyclohexane oxidation in the liquid phase显示文摘Masters A F Beattie James K Roa Adriana L 2001Catal Lett2001,75,34:1
18Endo- thelial cells derived from human iPSCS increase capillary density and improve peffusion in a mouse model of periph- eral arterial disease显示文摘RUFAIHAH A J HUANG N F JAME S 2011Arterioscler Thromb Vasc Biol2011,31,:1
19Pedagogical Content Knowing: An Integrative Model for Teacher Preparation 显示文摘Cochran K F James A DeRtuter Richard A King 1993Journal of Teacher Education1993,44,4:1
20Spatially Variant Contrast Enhancement Using Local Ranger Modification 显示文摘James D F Robert A S 1983SPIE1983,2213,:1
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