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10672篇 您的检索式:作者名="Johnson R"
    题名 作者 年代 出处 被引量
1MicroRNA-34a inhibits glioblastoma growth by targeting multiple oncogenes显示文摘Li Y Guessous F Zhang Y Dipierro C Kefas B Johnson E Marcinkiewicz L Jiang J Yang Y Schmittgen TD Lopes B Schiff D Purow B Abounader R 2009中国神经肿瘤杂志2009,7,4:56
2冠状动脉内影像学临床应用专家共识(第一部分):对冠状动脉介入治疗的指导与优化显示文摘欧洲心血管介入协会(EAPCI)专家组系统总结了血管内超声(IVUS)和光学相干断层成像(OCT)这两种血管内影像学检查临床应用指征的现有证据,提供了关于IVUS和OCT指导经皮冠状动脉介入治疗(PCI)的应用价值,并明确了最可能从腔内影像学指导的介入治疗中获得临床收益的患者或病变类型,同时详细论述了PCI前如何使用IVUS或OCT优化支架尺寸(支架长度和直径)和手术策略的选择。此外,专家推荐对支架失败(支架内再狭窄或支架内血栓形成)的患者应常规进行冠状动脉内影像学检查,并首选OCT。最后,重点论述了IVUS和OCT在指导PCI和评估支架失败两个方面的优势和局限性,并对未来需要深入研究的领域进行了展望。Lorenz Raber Gary S Mintz Konstantinos C Koskinas Thomas W Johnson Niels R Holm Yoshinubo Onuma Maria D Radu Michael Joner Bo Yu Haibo Jia Nicolas Meneveau Jose M.de la Torre Hemandez Javier Escaned Jonathan Hill Francesco Prati Antonio Colombo Carlo di Mario Evelyn Regar Davide Capodanno William Wijns Robert A Byme Giulio Guagliumi 2019中华心血管病杂志2019,47,1:17
3Endoscopy and polyps-diagnostic and therapeutic advances in management显示文摘Despite multiple efforts aimed at early detection through screening, colon cancer remains the third leading cause of cancer-related deaths in the United States, with an estimated 51000 deaths during 2013 alone. The goal remains to identify and remove benign neoplastic polyps prior to becoming invasive cancers. Polypoid lesions of the colon vary widely from hyperplastic, hamartomatous and inflammatory to neoplastic adenomatous growths. Although these lesions are all benign, they are common, with up to one-quarter of patients over 60 years old will develop pre-malignant adenomatous polyps. Colonoscopy is the most effective screening tool to detect polyps and colon cancer, although several studies have demonstrated missed polyp rates from 6%-29%, largely due to variations in polyp size. This number can be as high as 40%, even with advanced (> 1 cm) adenomas. Other factors including sub-optimal bowel preparation, experience of the endoscopist, and patient anatomical variations all affect the detection rate. Additional challenges in decision-making exist when dealing with more advanced, and typically larger, polyps that have traditionally required formal resection. In this brief review, we will explore the recent advances in polyp detection and therapeutic options.Scott R Steele Eric K Johnson Bradley Champagne Brad Davis Sang Lee David Rivadeneira Howard Ross Dana A Hayden Justin A Maykel 2013World Journal of Gastroenterology2013,19,27:16
4Operative considerations for rectovaginal fistulas显示文摘To describe the etiology, anatomy and pathophysiology of rectovaginal fistulas(RVFs); and to describe a systematic surgical approach to help achieve optimal outcomes. A current review of the literature was performed to identify the most up-to-date techniques and outcomes for repair of RVFs. RVFs present a difficult problem that is frustrating for patients and surgeons alike. Multiple trips to the operating room are generally needed to resolve the fistula, and the recurrence rate approaches40% when considering all of the surgical options. At present, surgical options range from collagen plugs and endorectal advancement flaps to sphincter repairs or resection with colo-anal reconstruction. There are general principles that will allow the best chance for resolution of the fistula with the least morbidity to the patient. These principles include: resolving the sepsis, identifying the anatomy, starting with least invasive surgical options, and interposing healthy tissue for complex or recurrent fistulas.Kevin R Kniery Eric K Johnson Scott R Steele 2015World Journal of Gastrointestinal Surgery2015,7,8:7
5Re- sponses in ovulation rate, embryonal survival, and litter traits in swine to 14 generations of selection to increase litter size 显示文摘JOHNSON R K NIELSEN M K CASEY D S 1999J Anim Sci1999,77,3:5
6Quality in the technical performance of colonoscopy and the continuous quality improvement process for colonoscopy: recommendations of the U.S. Multi-Society Task Force on Colorectal Cancer显示文摘Douglas K Rex John H Bond Sidney Winawer Theodore R Levin Randall W Burt David A Johnson Lynne M Kirk Scott Litlin David A Lieberman Jerome D Waye James Church John B Marshall Robert H Riddell 2002The American Journal of Gastroenterology2002,,6:3
7褪黑素合成酶基因转化烟草及转化植株抗氧化系统变化显示文摘通过根癌农杆菌(含植物表达载体YXu55)介导的转化技术,将褪黑素生物合成酶-芳烷基胺N-乙酰转移酶(Arylalkylamine N-acetyltransferase,AANAT)与羟基吲哚O-甲基转移酶(Hydroxyindole O-methyltransferase,HIOMT)基因导入到烟草(秦烟95)中。对所获得的庆大霉素抗性烟草株系进行Southern blotting和RT-PCR分子生物学检测,结果表明,AANAT-HIOMT基因已成功地整合到烟草基因组中,并且可以在mRNA水平上进行转录。用反相高效液相色谱法(RP-HPLC)测定转化株系的褪黑素含量表明,转AANAT-HIOMT基因烟草株系的褪黑素含量均明显高于pZP122(不含AANAT和HIOMT基因的空白质粒)转基因株系和未转基因的对照植株,证明AANAT-HIOMT基因在转基因植株中的表达增强了褪黑素的合成能力。对不同株系抗氧化系统的部分指标进行了测定,并与其亲本对照植株比较,发现AANAT-HIOMT基因在转基因植物中的表达引起超氧化物歧化酶(SOD)、过氧化物酶(POD)、过氧化氢酶(CAT)活性增加,谷胱甘肽(GSH)浓度以及总抗氧化能力升高,且没有引起膜脂质过氧化物丙二醛(MDA)的变化,说明转基因烟草抗氧化潜能得到提高。王英娟 贾敬芬 步怀宇 赵宇玮 许耀 Carl Hirschie Johnson Jan Kolár 2009生物工程学报2009,25,7:3
8CDX2 protein expression compared to alcian blue staining in the evaluation of esophageal intestinal metaplasia显示文摘AIM:To compare the sensitivity and specificity of CDX2 and alcian blue(AB) p H 2.5 staining in identifying esophageal intestinal metaplasia.METHODS:One hundred and ninty-nine biopsies from 186 patients were retrospectively reviewed and categorized as Barrett's esophagus(BE)(n =108); non-Barrett's esophagus(NBE)(n =48); columnar blue cells(CB) and esophageal glands(EG)(n =43).The biopsies were stained with AB and immunostained for CDX2 using a mouse monoclonal antibody from Biogenex(clone CDX2-88) and the Ventana Discovery X automated immunostainer.The positive and negative predictive value of each group was used to determine the predictive power of CDX2 and AB in diagnosing intestinal metaplasia.RESULTS:All of the 108 BE biopsies(100%) were positive for AB and 102 of them(94.4%) were positive for CDX2.The six BE patients(5.6%) who failed to stain with CDX2 were found to have lost the focus of intestinal metaplasia upon deeper sectioning for immunostaining.Both AB and CDX2 were negative in 43 out of 48(89.6%) NBE cases.Five NBE patients(10.4%) were falsely positive for AB due to the presence of EG and CB in these biopsies.These cases were all CDX2 negative.In addition,5 AB negative NBE were found to be CDX2 positive.Based on these results the CDX2 immunostain had similar sensitivity but higher specificity(100% vs about 91%) than AB in detecting intestinal type metaplasia in these samples.Our data shows that CDX2 has a better PPV in detecting intestinal metaplasia as compared to AB(95.6% vs 71.5%,respectively).CONCLUSION:CDX2 has a better positive predictive value than AB in detecting intestinal metaplasia.CDX2may be useful when challenged by gastro-esophageal biopsies containing mimikers of BE.Dennis R Johnson Maisoun Abdelbaqui Maryam Tahmasbi Zoltan Mayer Hung-Wei Lee Mokenge P Malafa Domenico Coppola 2015World Journal of Gastroenterology2015,21,9:2
9Status of silicon carbide(SiC) as a wide-bandgap semiconductor for high-temperature applications:a review 显示文摘CASADY J B JOHNSON R W 1996Solid State Electron1996,39,:2
10HIF-1α is required for solid tumor formation and embryonic vascularization显示文摘Ryan H E Lo J Johnson R S 1998EMBO J1998,17,11:2
11Global surveillance of cancer survival 1995–2009: analysis of individual data for 25 676 887 patients from 279 population-based registries in 67 countries (CONCORD-2)显示文摘Claudia Allemani Hannah K Weir Helena Carreira Rhea Harewood Devon Spika Xiao-Si Wang Finian Bannon Jane V Ahn Christopher J Johnson Audrey Bonaventure Rafael Marcos-Gragera Charles Stiller Gulnar Azevedo e Silva Wan-Qing Chen Olufemi J Ogunbiyi Bernard R 2015The Lancet . 2015 (9972)2015,,:2
12MicroRNA-181b通过调节金属蛋白酶组织抑制因子3和弹性蛋白影响动脉粥样硬化和动脉瘤显示文摘动脉粥样硬化和动脉瘤是全世界人口的主要致死原因。微小RNA(microRNAs,miR)是基因和蛋白表达的关键决定因素,miR异常表达与许多心血管病有关。目前对它们在动脉粥样硬化斑块和腹主动脉瘤(abdominal aortic aneurysm,AAA)稳定性中的作用了解甚少。刘莉 叶鹏 Di Gregoli K Mohamad Anuar NN Bianco R White SJ Newby AC George SJ Johnson JL 2016中华高血压杂志2016,24,11:2
13Sulfate adsorption and desorption reversibility in a variety of forest soils 显示文摘Harrison R B Johnson D W Todd D E 1989J Environ Qual1989,18,:2
14Sex differences in uric acid and risk factors for coronary artery disease显示文摘Katherine R Tuttle Robert A Short Richard J Johnson 2001The American Journal of Cardiology2001,,12:2
15Design and Analysis of a Compact,Wide Field, Unobscured, Zoom Mirror System显示文摘R Barry Johnson Mann Allen 1997Proceedings of SPIE1997,3129,:2
16Distinctions between bipolar and unipolar depression 显示文摘Cuellar AK Johnson SL Winters R 2005Clin Psychol Rev2005,25,3:1
17FDA drug approval summaries:Pemetrexed(alimta)显示文摘Hazarika M White R M Johnson J R 2004Oncologist2004,9,5:1
18FDA drug approval summary: erlotinib (tarveva) tablets显示文摘COHEN M H JOHNSON J R CHEN Y F 2005Oncologist2005,10,7:1
19Postoperative pain after 1- and 2-visit root canal therapy 显示文摘Direnzo A Gresla T Johnson B R 2002Oral Surg Oral Med Oral Pathol Oral Radiol Endod2002,93,5:1
20Effects of protease inhibitors and antioxidants on i n vitro survival of porcine primordial germ cells显示文摘LEE C K WEAKS R L JOHNSON G A 2000Biol Reprod2000,63,:1
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