|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Choledocholithiasis: Evolving standards for diagnosis and management显示文摘胆石病,导致外科的干预的最普通的医药条件之一,在美国影响成年人口的约 10 % 。胆总管石病与胆囊石头在大约病人的 10%-20% 发展,文学建议至少经历胆囊炎的病人的 3%-10% 将有胆总管(CBD ) 石头。CBD 石头可以外科手术前地, intraoperatively 或手术后地被发现多重形式为包括实验室测试,超声,计算断层摄影术扫描(CT ) ,和磁性的回声 cholangiopancreatography (MRCP ) 为胆总管石病估计病人是可得到的。Intraoperative 胆管造影术能习惯性地或有选择地在胆囊炎期间被使用诊断 CBD 石头。为 CBD 石头的最普通的干预是 ERCP。另外的通常使用的干预包括 intraoperative 胆汁管探索,任何一个 laparoscopic 或 open。经皮, transhepatic 石头移动胆汁的清理的另外的新奇技术被设计了。与这些技术灵巧的设备和有技能的专业人员的可获得性在机构之中变化。预定干预被临床的状况经常支配。 | Marilee L Freitas Robert L Bell Andrew J Duffy | 2006 | World Journal of Gastroenterology2006，12，20： | 30 |
| 2 | The Plant Vascular System: Evolution, Development and Functions显示文摘The emergence of the tracheophyte-based vascular system of land plantshad major impacts on the evolution of terrestrial biology, in general,through its role in facilitating the development of plants with increasedstature, photosynthetic output, and ability to colonize a greatly expandedrange of environmental habitats. Recently, considerable progress hasbeen made in terms of our understanding of the developmental andphysiological programs involved in the formation and function of theplant vascular system. In this review, we first examine the evolutionaryevents that gave rise to the tracheophytes, followed by analysis of thegenetic and hormonal networks that cooperate to orchestrate vasculardevelopment in the gymnosperms and angiosperms. The two essentialfunctions performed by the vascular system, namely the delivery of resources (water, essential mineralnutrients, sugars and amino acids) to the various plant organs and provision of mechanical support arenext discussed. Here, we focus on critical questions relating to structural and physiological propertiescontrolling the delivery of material through the xylem and phloem. Recent discoveries into the role ofthe vascular system as an effective long-distance communication system are next assessed in termsof the coordination of developmental, physiological and defense-related processes, at the whole-plantlevel. A concerted effort has been made to integrate all these new findings into a comprehensive pictureof the state-of-the-art in the area of plant vascular biology. Finally, areas important for future researchare highlighted in terms of their likely contribution both to basic knowledge and applications to primaryindustry. | William J. Lucas Andrew Groover Raffael Lichtenberger Kaori Furuta Shri-Ram Yadav Yk Helariutta Xin-Qiang He Hiroo Fukuda Julie Kang Siobhan M. Brady John W. Patrick John Sperry Akiko Yoshida Ana-Flor López-Millan Michael A. Grusak Pradeep Kachroo | 2013 | Journal of Integrative Plant Biology2013，55，4： | 30 |
| 3 | Pancreatic ductal adenocarcinoma: Risk factors, screening, and early detection显示文摘Pancreatic cancer is the fourth most common cause of cancer-related deaths in the United States, with over 38000 deaths in 2013. The opportunity to detect pancreatic cancer while it is still curable is dependent on our ability to identify and screen high-risk populations before their symptoms arise. Risk factors for developing pancreatic cancer include multiple genetic syndromes as well as modifiable risk factors. Genetic conditions include hereditary breast and ovarian cancer syndrome, Lynch Syndrome, familial adenomatous polyposis, Peutz-Jeghers Syndrome, familial atypical multiple mole melanoma syndrome, hereditary pancreatitis, cystic fibrosis, and ataxia-telangiectasia; having a genetic predisposition can raise the risk of developing pancreatic cancer up to 132-fold over the general population. Modifiable risk factors, which include tobacco exposure, alcohol use, chronic pancreatitis, diet, obesity, diabetes mellitus, as well as certain abdominal surgeries and infections, have also been shown to increase the risk of pancreatic cancer development. Several largevolume centers have initiated such screening protocols, and consensus-based guidelines for screening high-riskgroups have recently been published. The focus of this review will be both the genetic and modifiable risk factors implicated in pancreatic cancer, as well as a review of screening strategies and their diagnostic yields. | Andrew E Becker Yasmin G Hernandez Harold Frucht Aimee L Lucas | 2014 | World Journal of Gastroenterology2014，20，32： | 24 |
| 4 | Use of exclusive enteral nutrition in adults with Crohn's disease: A review显示文摘Exclusive enteral nutrition(EEN)is well-established as a first line therapy instead of corticosteroid(CS)therapy to treat active Crohn’s disease(CD)in children.It also has been shown to have benefits over and above induction of disease remission in paediatric populations.However,other than in Japanese populations,this intervention is not routinely utilised in adults.To investigate potential reasons for variation in response between adult studies of EEN and CS therapy.The Ovid database was searched over a 6-mo period.Articles directly comparing EEN and CS therapy in adults were included.Eleven articles were identified.EEN therapy remission rates varied considerably.Poor compliance with EEN therapy due to unpalatable formula was an issue in half of the studies.Remission rates of studies that only included patients with previously untreated/new CD were higher than studies including patients with both existing and new disease.There was limited evidence to determine if disease location,duration of disease or age of diagnosis affected EEN therapy outcomes.There is some evidence to support the use of EEN as a treatment option for a select group of adults,namely those motivated to adhere to an EEN regimen and possibly those newly diagnosed with CD.In addition,the use of more palatable formulas could improve treatment compliance. | Catherine L Wall Andrew S Day Richard B Gearry | 2013 | World Journal of Gastroenterology2013，19，43： | 15 |
| 5 | Genetic dissection of maize seedling root system architecture traits using an ultra-high density bin-map and a recombinant inbred line population显示文摘Maize(Zea mays) root system architecture(RSA)mediates the key functions of plant anchorage and acquisition of nutrients and water. In this study,a set of 204 recombinant inbred lines(RILs) was derived from the widely adapted Chinese hybrid ZD958(Zheng58 Chang7-2),genotyped by sequencing(GBS) and evaluated as seedlings for 24 RSA related traits divided into primary,seminal and total root classes. Signi ficant differences between the means of the parental phenotypes were detected for 18 traits,and extensive transgressive segregation in the RIL population was observed for all traits. Moderate to strong relationships among the traits were discovered. A total of 62 quantitative trait loci(QTL) were identi fied that individually explained from1.6% to 11.6%(total root dry weight/total seedling shoot dry weight) of the phenotypic variation. Eighteen,24 and 20 QTL were identi fied for primary,seminal and total root classes of traits,respectively. We found hotspots of 5,3,4 and 12 QTL in maize chromosome bins 2.06,3.02-03,9.02-04,and 9.05-06,respectively,implicating the presence of root gene clusters or pleiotropic effects. These results characterized the phenotypic variation and genetic architecture of seedling RSA in a population derived from a successful maize hybrid. | Weibin Song Baobao Wang Andrew L Hauck Xiaomei Dong Jieping Li Jinsheng Lai | 2016 | Journal of Integrative Plant Biology2016，58，3： | 13 |
| 6 | Management of borderline and locally advanced pancreatic cancer:Where do we stand?显示文摘Many patients with pancreas cancer present with locally advanced pancreatic cancer(LAPC).The principle tools used for diagnosis and staging of LAPC include endoscopic ultrasound,axial imaging with computed tomography and magnetic resonance imaging,and diagnostic laparoscopy.The definition of resectability has historically been vague,as there is considerable debate and controversy as to the definition of LAPC.For the patient with LAPC,there is some level of involvement of the surrounding vascular structures,which include the superior mesenteric artery,celiac axis,hepatic artery,superior mesenteric vein,or portal vein.When feasible,most surgeons would recommend possible surgical resection for patients with borderline LAPC,with the goal of an R0 resection.For initially unresectable LAPC,neoadjuvant should be strongly considered.Specifically,these patients should be offered neoadjuvant therapy,and the tumor should be assessed for possible response and eventual resection.The efficacy of neoadjuvant therapy with this approach as a bridge to potential curative resection is broad,ranging from 3%-79%.The different modalities of neoadjuvant therapy include sin-gle or multi-agent chemotherapy combined with radiation,chemotherapy alone,and chemotherapy followed by chemotherapy with radiation.This review focuses on patients with LAPC and addresses recent advances and controversies in the field. | Jin He Andrew J Page Matthew Weiss Christopher L Wolfgang Joseph M Herman Timothy M Pawlik | 2014 | World Journal of Gastroenterology2014，20，9： | 11 |
| 7 | 应用可扩展的套索回归模型对间皮瘤进行生存期预测:临床预测指标的使用和初始性能的说明显示文摘目的对恶性胸膜间皮瘤(MPM)进行准确的预后预测具有一定困难。我们研究一套健全的计算模型来量化常规可用临床数据的预后价值,它们构成了已发布的MPM预测模型的基础。 | 王臻(译) 施焕中(校) Andrew C Kidd Michael McGettrick Selina Tsim Daniel L Halligan Max Bylesjo Kevin G Blyth | 2018 | 英国医学杂志中文版2018，21，6： | 11 |
| 8 | Definition and classification of cancer cachexia: an international consensus显示文摘 | Kenneth Fearon Florian Strasser Stefan D Anker Ingvar Bosaeus Eduardo Bruera Robin L Fainsinger Aminah Jatoi Charles Loprinzi Neil MacDonald Giovanni Mantovani Mellar Davis Maurizio Muscaritoli Faith Ottery Lukas Radbruch Paula Ravasco Declan Walsh Andrew | 2011 | Lancet Oncology2011，，5： | 8 |
| 9 | 应用^(222)Rn研究黑河流域地表水与地下水转换关系显示文摘黑河流域位于西北干旱区,流域水资源的一个显著特点是地表水与地下水的相互转换频繁。了解流域地表水与地下水的相互转换关系是进行流域水资源管理和水利规划的重要依据。222Rn是一种放射性惰性气体,地下水中222Rn的浓度远大于地表水222Rn的浓度,同时,222Rn具有较短的半衰期,因此222Rn是一种研究地表水与地下水转换关系非常良好的示踪剂。利用222Rn作为同位素示踪剂,研究分析了黑河中游地表水与地下水的转换关系。研究结果表明,出山口莺落峡至张掖黑河大桥河段,地表水入渗补给地下水;张掖大桥以下至正义峡河段,地下水排泄补给河流。 | 钱云平 Andrew L H 张春岚 王玲 | 2005 | 人民黄河2005，27，12： | 8 |
| 10 | Evolution of surgical skills training显示文摘外科的训练正在变化:100 年传统被法律、道德的担心为耐心的安全,工作小时限制,手术室时间的费用,和复杂并发症正在质问。训练的外科的模拟和技巧提供一个机会在在生活病人上尝试他们前在手术室环境外面教并且练习先进技巧。当使用真实仪器和录像设备操作在一个盒子训练员模仿了“织物”,模拟训练能向前是同样直的。更先进的、虚拟现实模拟器现在为普遍使用可得到、准备好了。早系统表明了他们的有效性和歧视的能力。更新的系统启用全面课程和完整的程序的模拟的开发。医药教育是的毕业生的认证委员会(ACGME ) 要求了训练和评估的新奇方法的发展。外科的组织正在打电话让方法保证技巧的维护,并且,进展 surgical 训练信任外科医生作为技术上能干。在他们的当前的形式的模拟器被表明了改进外科的居民的手术室表演。训练课程标准化的开发仍然是一个迫切、重要的议程,特别地为最小的侵略外科。一条创新、进步的途径,从航空的域借经验,能为外科的训练的下一个世纪提供基础,保证产品的质量。当技术发展,我们练习的方法将继续演变,到医生和病人的利益。 | Kurt E Roberts Robert L Bell Andrew J Duffy | 2006 | World Journal of Gastroenterology2006，12，20： | 8 |
| 11 | Controversies in the treatment of gastroesophageal reflux and achalasia显示文摘胃的食道的倒流疾病(GERD ) 和弛缓不能的有效治疗为这二作为标准答案建立了最小的侵略外科的 laparoscopic 外科的巨大的成功与更低的病态和死亡调节,更短的医院停留,更快的康复,和不太手术后的疼痛。在 GERD 的处理的一争吵作为比较喜欢的处理在 laparoscopic 反倒流外科(LARS ) 附近演变让 Barrett 的食管和过程的潜力减少食管的腺癌的风险。GERD 也与呼吸症状,气喘和喉的损害被联系了,并且第二争吵推动全部或部分的 fundoplication 是否是为 GERD 的更适当的处理的讨论。在 GERD 的处理的一种新、有希望的选择是 endoluminal 治疗。这种新处理选择的三种类型将被讨论:送到更低的食道的括约肌的射频精力,在胃的食道的连接的一个机械障碍的创造,并且更低的食道的括约肌的直接内视镜的紧缩。Laparoscopic 外科为弛缓不能为 GERD 而且同样永久的痊愈作为很有效的治疗被讨论不仅。这评论为弛缓不能分析三种很重要的处理选择:药,灵魂膨胀,和外科的治疗。因为他们的短半衰期和可变吸收,在弛缓不能的处理的药同样唯一的真非侵略的选择由于穷人不象 LARS 一样有效食道的倒空。第二种处理选择,灵魂膨胀,包含拉长更低的食管并且是仍然为弛缓不能考虑了最有效的非外科的处理。最后,为弛缓不能的外科的治疗和有关这个 laparoscopic 处理的二主要争吵被讨论。第一包含肌切开术被扩大到到胃上的程度,并且第二使反倒流过程的必要性和类型担心在肌切开术以后阻止 GERD。LARS 和 laparoscopic Heller 肌切开术是同意了在之上作为为 GERD 和弛缓不能的外科疗法的标准答案分别地。在一位富有经验的 laparoscopic 外科医生的手里,两个是为有有至少 90% 耐心的满足的优秀主观、客观的长期的结果的病人的安全、有效的治疗。 | Kurt E Roberts Andrew J Duffy Robert L Bell | 2006 | World Journal of Gastroenterology2006，12，20： | 4 |
| 12 | Predictors of spine deformity progression in adolescent idiopathic scoliosis: A systematic review with meta-analysis显示文摘AIM: To evaluate published data on the predictors of progressive adolescent idiopathic scoliosis(AIS) in order to evaluate their efficacy and level of evidence. METHODS: Selection criteria:(1) study design: randomized controlled clinical trials, prospective cohort studies and case series, retrospective comparative and none comparative studies;(2) participants: adolescents with AIS aged from 10 to 20 years; and(3) treatment: observation, bracing, and other. Search method: Ovid MEDLINE, Embase, the Cochrane Library, Pub Medand patent data bases. All years through August 2014 were included. Data were collected that showed an association between the studied characteristics and the progression of AIS or the severity of the spine deformity. Odds ratio(OR), sensitivity, specificity, positive and negative predictive values were also collected. A metaanalysis was performed to evaluate the pooled OR and predictive values, if more than 1 study presented a result. The GRADE approach was applied to evaluate the level of evidence.RESULTS: The review included 25 studies. All studies showed statistically significant or borderline association between severity or progression of AIS with the following characteristics:(1) An increase of the Cobb angle or axial rotation during brace treatment;(2) decrease of the rib-vertebral angle at the apical level of the convex side during brace treatment;(3) initial Cobb angle severity(> 25o);(4) osteopenia;(5) patient age < 13 years at diagnosis;(6) premenarche status;(7) skeletal immaturity;(8) thoracic deformity;(9) brain stem vestibular dysfunction; and(10) multiple indices combining radiographic, demographic, and physiologic characteristics. Single nucleotide polymorphisms of the following genes:(1) calmodulin 1;(2) estrogen receptor 1;(3) tryptophan hydroxylase 1;(3) insulin-like growth factor 1;(5) neurotrophin 3;(6) interleukin-17 receptor C;(7) melatonin receptor 1B, and(8) Scoli Score test. Other predictors included:(1) impairment of melatonin signaling in osteoblasts and peripheral blood mononuclear cells(PBMC);(2) G-protein signaling dysfunction in PBMC; and(3) the level of platelet calmodulin. However, predictive values of all these findings were limited, and the levels of evidence were low. The pooled result of brace treatment outcomes demonstrated that around 27% of patents with AIS experienced exacerbation of the spine deformity during or after brace treatment, and 15% required surgical correction. However, the level of evidence is also low due to the limitations of the included studies.CONCLUSION: This review did not reveal any methods for the prediction of progression in AIS that could be recommended for clinical use as diagnostic criteria. | Andriy Noshchenko Lilian Hoffecker Emily M Lindley Evalina L Burger Christopher MJ Cain Vikas V Patel Andrew P Bradford | 2015 | World Journal of Orthopedics2015，6，7： | 4 |
| 13 | Magnetic resonance angiography for the primary diagnosis of pulmonary embolism: A review from the international workshop for pulmonary functional imaging显示文摘Pulmonary contrast enhanced magnetic resonance angiography(CE-MRA) is useful for the primary diagnosis of pulmonary embolism(PE). Many sites have chosen not to use CE-MRA as a first line of diagnostic tool for PE because of the speed and higher efficacy of computerized tomographic angiography(CTA). In this review, we discuss the strengths and weaknesses of CEMRA and the appropriate imaging scenarios for the primary diagnosis of PE derived from our unique multiinstitutional experience in this area. The optimal patient for this test has a low to intermediate suspicion for PE based on clinical decision rules. Patients in extremis are not candidates for this test. Younger women(< 35 years of age) and patients with iodinated contrast allergies are best served by using this modality We discuss the history of the use of this test, recent technical innovations, artifacts, direct and indirect findings for PE, ancillary findings, and the effectiveness(patient outcomes) of CE-MRA for the exclusion of PE. Current outcomes data shows that CE-MRA and NM V/Q scans are effective alternative tests to CTA for the primary diagnosis of PE. | Nanae Tsuchiya Edwin JR van Beek Yoshiharu Ohno Hiroto Hatabu Hans-Ulrich Kauczor Andrew Swift Jens Vogel-Claussen Jürgen Biederer James Wild Mark O Wielpütz Mark L Schiebler | 2018 | World Journal of Radiology2018，10，6： | 4 |
| 14 | PrP^C-related signal transduction is influenced by copper, membrane integrity and the alpha cleavage site显示文摘铜绑定,抛锚膜的、细胞的 prion 蛋白质(PrPC ) 有二个组成的劈开地点生产不同 N 终端和 C 终端碎片(N1/C1 和 N2/C2 ) 。用表示也人的 PrPC,鼠标 PrPC 或鼠标 PrPC 的 RK13 房间带 3F4 epitope,这研究在 endoproteolytic 劈开和一个通常认为的 PrPC 函数上探索了 PrPC 主要顺序的影响,地图 kinase 信号 transduction,响应外长的铜与或没有使不安的膜环境。PrPC 主要顺序,特别在 N1/C1 劈开地点附近,看起来在这个地点和细胞外的调整信号的 kinase 1/2 (ERK1/2 ) phosphorylation 影响解朊作用的基础层次,与处理激活增加与基础 ERK1/2 表明一种反的关系。人的 PrPC 独自响应铜显示出增加的 N1/C1 劈开,由特定的 p38 和 JNK/SAPK phosphorylation 伴随了。到加扣押胆固醇的抗菌素 filipin 的铜的联合暴露导致了一只老鼠信号蛋白质 phosphorylation 的 PrPC 特定的实质的增加,由 N1/C1 劈开的增加伴随了。怀有人的 N1/C1 劈开地点的老鼠 PrPC 基础地并且响应铜假定更似人类的侧面并且改变了膜环境。我们的结果证明在 N1/C1 劈开地点附近的 PrPC 主要顺序影响在这个地点处理的 endoproteolytic,它显得连接了基础地并且响应铜印射 kinase 信号 transduction。进一步,主要顺序看起来响应外长的刺激在 PrPC 相关的信号 transduction 的忠实上授与 N1/C1 劈开和膜完整的相互的依赖。 | Cathryn L Haigh | 2009 | Cell Research2009，19，9： | 4 |
| 15 | 生物素——抗结核药物新研究方向(英文)显示文摘耐药菌的出现对全球公共卫生构成了巨大的挑战,结核分枝杆菌(TB)是结核病的病原菌,是临床上最重要的病原体之一。新抗生素的研发用以治疗耐药性结核病已成为临床及公共卫生管理亟待解决的重要问题。生物素(维生素B7)在结核杆菌的代谢途径如脂肪酸合成和三羧酸循环中发挥重要作用,通过生物素蛋白连接酶连接活性辅助因子而被激活。生物素蛋白连接酶及其相关生物合成通路是微生物合成生物素过程中必不可或缺的关键分子,因而有可能成为新的药物靶点。遗传研究表明,结核杆菌需要由菌体进行生物素的全程合成,因此,生物素合成酶在在结核杆菌代谢过程中起着至关重要的作用,引起了抗结核药物研究者的高度重视。本文论述了结核杆菌生物素合成通路,并重点分析了生物素合成过程中可能成为药物靶点的关键酶,旨在为结核病的治疗提供新思路,具有重要的临床意义。 | THOMPSON Andrew P STERNICKI Louise M WEGENER Kate L 陆伟 竺丽梅 BOOKER Grant W POLYAK Steven W 李燕 | 2016 | 江苏预防医学2016，27，3： | 4 |
| 16 | Putting things in place for fertilization: discovering roles for importin proteins in cell fate and spermatogenesis显示文摘Importin 蛋白质原来通过原子毛孔在蛋白质运输为他们的中央角色被描绘,唯一的细胞内部的入口到原子核。这个重要函数必须紧被调整由抄写因素和另外的原子蛋白质控制存取到 genomic DNA,到完成细胞的行为影响的适当调整房间命运。调停 Importin 的 nucleocytoplasmic 运输依靠他们货物的特定的识别,与到不同、重叠的蛋白质子集的每 importin 绑定。importin 功能的知识关于三个关键发展系统实质地膨胀了:胚胎的干细胞,肌肉房间和细菌排队。自从为调整 nucleocytoplasmic 运输的潜力被建议贡献精子发生,在十年,我们和其它证明了进原子核的渡船抄写因素执行的 importins 另外的角色,它控制房间命运。这评论从哺乳动物的精子发生的研究介绍关键调查结果揭示男富饶和不孕由产生的潜在的新小径。germline 开始的这些研究照亮 importin 蛋白质在管理细胞的区别的新方法,经由指导到不同细胞内部的分隔空间并且由决定细胞的压力回答的蛋白质包括。 | Kate L Loveland Andrew T Major Romaly Butler Julia C Young David A Jan Yoichi Miyamoto | 2015 | Asian Journal of Andrology2015，17，4： | 3 |
| 17 | Anatomically realistic multiscale models of normal and abnormal gastrointestinal electrical activity显示文摘One of the major aims of the International Union of Physiological Sciences (IUPS) Physiome Project is to develop multiscale mathematical and computer models that can be used to help understand human health. We present here a small facet of this broad plan that applies to the gastrointestinal system. Specifically, we present an anatomically and physiologically based modelling framework that is capable of simulating normal and pathological electrical activity within the stomach and small intestine. The continuum models used within this framework have been created using anatomical information derived from common medical imaging modalities and data from the Visible Human Project. These models explicitly incorporate the various smooth muscle layers and networks of interstitial cells of Cajal (ICC) that are known to exist within the walls of the stomach and small bowel. Electrical activity within individual ICCs and smooth muscle cells is simulated using a previously published simplified representation of the cell level electrical activity. This simulated cell level activity is incorporated into a bidomain representation of the tissue, allowing electrical activity of the entire stomach or intestine to be simulated in the anatomically derived models. This electrical modelling framework successfully replicates many of the qualitative features of the slow wave activity within the stomach and intestine and has also been used to investigate activity associated with functional uncoupling of the stomach. | Leo K Cheng Rie Komuro Travis M Austin Martin L Buist Andrew J Pullan | 2007 | World Journal of Gastroenterology2007，13，9： | 3 |
| 18 | Nat Genet:单基因突变导致过敏性皮炎的发生显示文摘最近,研究者们鉴定出了一类导致神经性皮炎发生的关键基因突变:CARDll。来自美国NIH过敏与传染病研究所的研究者们通过对四个没有血缘关系的患病家庭进行分析,发现了这一导致疾病产生的基因、 | Chi A Ma, Yuan Zhang, Michael A Weinreich, Jonathan J Lyons, Celeste G Nelson, Thomas DiMaggio, Kelly D Stone, Joshua D Milner Jeffrey R Stinson, Elisa Ruffo, Batsukh Dorjbal, Swadhinya Arjunaraja, Kelsey Voss, Andrew L Snow Jordan K Abbott, Pia J Hauk, Paul R Reynolds, Erwin W Gelfand Elisa Ruffo Salomé Glauzy, Natsuko Yamakawa, Eric Meffre Jennifer Stoddard, Julie Niemela, Sergio D Rosenzweig Yu Zhang, Helen F Matthews Joshua J McElwee Nina Jones Alejandro Palma, Matías Oleastro, Emma Prieto, Andrea R Bernasconi, Geronimo Dubra, Silvia Danielian, Jonathan Zaiat, Marcelo A Marti Brian Kim Megan A Cooper Neil Romberg | 2017 | 现代生物医学进展2017，17，27： | 3 |
| 19 | Comparative effectiveness of i-SCAN^(TM) and high-definition white light characterizing small colonic polyps显示文摘AIM:To evaluate accuracy of in vivo diagnosis of adenomatous vs non-adenomatous polyps using i-SCAN digital chromoendoscopy compared with high-definition white light.METHODS:This is a single-center comparative effectiveness pilot study.Polyps(n = 103) from 75 averagerisk adult outpatients undergoing screening or surveillance colonoscopy between December 1,2010 and April 1,2011 were evaluated by two participating endoscopists in an academic outpatient endoscopy center.Polyps were evaluated both with high-definition white light and with i-SCAN to make an in vivo prediction of adenomatous vs non-adenomatous pathology.We determined diagnostic characteristics of i-SCAN and highdefinition white light,including sensitivity,specificity,and accuracy,with regards to identifying adenomatous vs non-adenomatous polyps.Histopathologic diagnosis was the gold standard comparison.RESULTS:One hundred and three small polyps,detected from forty-three patients,were included in the analysis.The average size of the polyps evaluated in the analysis was 3.7 mm(SD 1.3 mm,range 2 mm to 8 mm).Formal histopathology revealed that 54/103(52.4%) were adenomas,26/103(25.2%) were hyperplastic,and 23/103(22.3%) were other diagnoses include 'lymphoid aggregates','non-specific colitis,' and 'no pathologic diagnosis.' Overall,the combined accuracy of endoscopists for predicting adenomas was identical between i-SCAN(71.8%,95%CI:62.1%-80.3%) and high-definition white light(71.8%,95%CI:62.1%-80.3%).However,the accuracy of each endoscopist differed substantially,where endoscopist A demonstrated 63.0% overall accuracy(95%CI:50.9%-74.0%) as compared with endoscopist B demonstrating 93.3% overall accuracy(95%CI:77.9%-99.2%),irrespective of imaging modality.Neither endoscopist demonstrated a significant learning effect with i-SCAN during the study.Though endoscopist A increased accuracy using i-SCAN from 59%(95%CI:42.1%-74.4%) in the first half to 67.6%(95%CI:49.5%-82.6%) in the second half,and endoscopist B decreased accuracy using i-SCAN from 100%(95%CI:80.5%-100.0%) in the first half to 84.6%(95%CI:54.6%-98.1%) in the second half,neither of these differences were statistically significant.CONCLUSION:i-SCAN and high-definition white light had similar efficacy predicting polyp histology.Endoscopist training likely plays a critical role in diagnostic test characteristics and deserves further study. | Johanna L Chan Li Lin Michael Feiler Andrew I Wolf Diana M Cardona Ziad F Gellad | 2012 | World Journal of Gastroenterology2012，18，41： | 3 |
| 20 | Non-junctional Cx32 mediates anti-apoptotic and pro-tumor effects via epidermal growth factor receptor in human cervical cancer cells显示文摘OBJECTIVE To investigate the role of connexin proteins(Cx),which form gap junctions(GJ),in progression and chemotherapeutic sensitivity of cervical cancer(CaC x).METHODS We analyze the expression of Cx26,Cx30,Cx32 and Cx43 in human specimens consisting of:Normal cervix(n=78),CaCx FIGO stageⅠ(n=148),CaCx FIGO stageⅡ(n=165).In CaCx cell lines,Hela-Cx32(induced expression by doxycycline),C-33A(endogenously express Cx32)and si Ha(transiently transfected plasmid with Cx32),we detected the role of Cx32 against tostreptonigrin/cisplatin-induced apopotosisin presence or absence of functional GJ through using GJ inhibitors or low density cultural.Furtherly,we observed the relativity of Cx32 and EGFR expression in human specimens.Also,we detected the role of EGFR signaling pathway in the process of Cx32 anti-apoptosis through suppressed EGFR expression by inhibitors or si RNA sequences in cell lines.RESULTS We firstly demonstrated the expression of Cx32 was highly upregulated and accumulated in cytoplasm in the CaCx specimens,and the degree of upregulation correlated with advanced FIGO stages.Thus,in three human cervical cell lines,Cx32 was shown to suppress apoptosis when GJ formation is inhibited.No matter in cases of CaCx or cell lines,Cx32 expression was highly correlated with expression of EGFR and the EGFR pathway is an essential component of the Cx32-induced anti-apoptotic effect.CONCLUSION Cx32,traditionally tumor suppressive protein,was shown to be tumor protective against chemotherapy through EGFR pathway in a GJ-independent way. | Yi-fan ZHAO Yong-chang LAI Hui GE Yun-quan GUO Xue FENG Jia SONG Qin WANG Li-xia FAN Andrew L HARRIS Xi-yan WANG Liang TAO | 2017 | 中国药理学与毒理学杂志2017，31，10： | 3 |
您所在的机构暂未开通此部分的功能，请联系管理员