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683篇 您的检索式:作者名="Alan D"
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1Safety of the long-term use of proton pump inhibitors显示文摘The proton pump inhibitors (PPIs) as a class are remarkably safe and effective for persons with peptic ulcer disorders. Serious adverse events are extremely rare for PPIs, with case reports of interstitial nephritis with omeprazole, hepatitis with omeprazole and lansoprazole, and disputed visual disturbances with pantoprazole and omeprazole. PPI use is associated with the development of fundic gland polyps (FGP); stopping PPIs is associated with regression of FGP. In the absence of Helicobacter pylori infection, the long-term use of PPIs has not been convincingly proven to cause or be associated with the progression of pre-existing chronic gastritis or gastric atrophy or intestinal metaplasia. Mild/modest hypergastrinemia is a physiological response to the reduction in gastric acid secretion due to any cause. The long-term use of PPIs has not been convincingly proven to cause enterochromaff in-like cell hyperplasia or carcinoid tumors. PPIs increase the risk of community acquired pneumonia, but not of hospital acquired (nosocomial) pneumonia. There is no data to support particular care in prescribing PPI therapy due to concerns about risk of hip fracture with the long-termuse of PPIs. Long-term use of PPIs does not lead to vitamin B12 def iciencies, except possibly in the elderly, or in persons with Zollinger-Ellison Syndrome who are on high doses of PPI for prolonged periods of time. There is no convincingly proven data that PPIs increase the risk of Clostridium difficile-associated diarrhea in persons in the community. The discontinuation of PPIs may result in rebound symptoms requiring further and even continuous PPI use for suppression of symptoms. As with all medications, the key is to use PPIs only when clearly indicated, and to reassess continued use so that long-term therapy is used judiciously. Thus, in summary, the PPIs are a safe class of medications to use longterm in persons in whom there is a clear need for the maintenance of extensive acid inhibition.Alan BR Thomson Michel D Sauve Narmin Kassam Holly Kamitakahara 2010World Journal of Gastroenterology2010,16,19:20
2动脉粥样硬化血栓形成门诊患者1年内心血管事件的发生率显示文摘背景:目前,有关社区中动脉粥样硬化血栓形成稳定患者心血管(cardiovascular,CV)事件发生率的资料比较少,既往也无国际性队列研究对冠状动脉病(coronary artery disease,CAD)、脑血管病(cerebrovascular disease,CVD)、外周动脉病(peripheral arterial disease,PAD)确诊患者以及此类疾病高危患者不同事件的发生率进行评估。 目的:在患有动脉疾病的门诊患者或存在多个动脉粥样硬化血栓形成危险因素的门诊患者中确定当今世界1年内CV事件的发生率。 设计、地点及参试者:“减少动脉粥样硬化血栓形成维系健康(Reduction of Artherotllrombosis for Continued Health,REACH)”注册研究是一项国际前瞻性队列研究。研究人员于2003—2004年从44个国家、5587名医生入选68236例已确诊的动脉粥样硬化性血管病患者(CAD、PAD、CVD;n=55814)以及至少存在3个动脉粥样硬化血栓形成危险因素的患者(n=12422)。 主要观测指标:CV死亡、心肌梗死(myocardial infarction,MI)及卒中的发生率。结果:截至2006年7月,共有95.22%的患者(n=64977)提供了1年内的结局。心血管死亡、MI及卒中的总体发生率为4.24%;动脉粥样硬化性血管病患者为4.69%,仅存在多个危险因素的患者为2.15%。CAD、CVD及PAD患者CV死亡、MI及卒中的总体发生率分别为4.52%、6.47%和5.35%。CAD、CVD及PAD患者发生终点事件(即CV死亡、MI、卒中)以及因动脉粥样硬化血栓形成事件入院的几率分别为15.20%、14.53%和21.14%。上述事件发生率随症状性动脉疾病病变部位数量的增加而增加,仅存在危险因素的患者为5.31%,有1处症状性动脉疾病的患者为12.58%,有2处症状性动脉疾病的患者为21.14%,有3处症状性动脉疾病的患者为26.27%(趋势P〈0.001)。 结论:在这项当代大型国际研究中,患有动脉粥样硬化性血管病的门诊患者以及有动脉粥样硬化血栓形成危险的门诊患者CV事件的年发生率相对较高。存在多部位病变者CV事件的1年发生率升高。Gabriel Steg Deepak L. Bhatt Peter W. F. Wilson Ralph D' Agostino E. Magnus Ohman Joachim Roether Chiau-Suong Liau Alan T. Hirsch Jean-Louis Mas Yasuo Ikeda Michael J. Pencina Shinya Goto 徐成斌(译) 李呈亿(校) 2007美国医学会杂志(中文版)2007,26,4:20
3Anticancer immunotherapy by CTLA-4 blockade: obligatory contribution of IL-2 receptors and negative prognostic impact of soluble CD25显示文摘堵住抗体 ipilimumab 的细胞毒素的 T 淋巴细胞 antigen-4 (CTLA-4 ) 在很少的病人导致变形黑瘤的调停免疫者的长期的控制。尽管 ipilimumab 无疑经由 immunostimulation 施加它的治疗学的效果,这样远的临床上有用的、 immunologically 相关的 biomarkers 预言治疗效率是逃犯的。这里,我们显示出 IL-2 的那中立化或堵住 α并且 βIL-2 受体的子单元(CD25 和 CD122,分别地) 否则在现出症状之前的潜的老鼠模型由 CTLA-4 封锁导致了,废除了 antitumor 效果和 intratumoral T 受动器对规章的房间(Tregs ) 的比率的伴随的改进,它是。CTLA-4 封锁导致了在失去了 FoxP3 表示并且在 regressing 肿瘤积累了的 IL-2-producing 受动器房间与伴随物上升表示 Lag3, ICOS, IL-10 和 Egr2 的一个镇压 CD4 + T 房间子集的减小。当 recombinant IL-2 改进了 CTLA-4 封锁的治疗学的功效时,圈套 IL-2 受体 α(IL-2Rα, sCD25 ) 禁止了 CTLA-4 的 anticancer 效果封锁。在收到 ipilimumab 的 262 个变形黑瘤病人, sCD25 的基线浆液集中代表了全面幸存的独立指示物,与预言到治疗的抵抗的高水平。总的来说,这些结果解开为在 CTLA-4 的 anticancer 活动的 IL-2 和 IL-2 受体的一个角色封锁。重要地,我们的学习提供第一 immunologically 相关的 biomarker,也就是提高的浆液 sCD25,那与黑瘤在病人预言抵抗到 CTLA-4 封锁。Dalil Hannani Marie Vetizou David Enot Sylvie Rusakiewicz Nathalie Chaput David Klatzmann Melanie Desbois Nicolas Jacquelot Nadege Vimond Salem Chouaib Christine Mateus James P Allison Antoni Ribas Jedd D Wolchok Jianda Yuan Philip Wong Michael Postow Andrzej Mackiewicz Jacek Mackiewicz Dirk Schadendorff Dirk Jaeger Alan J Korman Keith Bahjat Michele Maio Luana Calabro Michele WL Teng Mark J Smyth Alexander Eggennont Caroline Robert Guido Kroemer Laurence Zitvogel 2015Cell Research2015,25,2:14
4Osteoporosis in primary biliary cholangitis显示文摘Primary biliary cholangitis(PBC) is an autoimmune cholestatic liver disease with multiple debilitating complications. Osteoporosis is a common complication of PBC resulting in frequent fractures and leading to significant morbidity in this population, yet evidence for effective therapy is lacking. We sought to summarize our current understanding of the pathophysiology of osteoporosis in PBC, as well as current and emerging therapies in order to guide future research directions. A complete search with a comprehensive literature review was performed with studies from Pub Med, EMBASE, Web of Science, Cochrane database, and the Countway Library. Osteoporosis in PBC is driven primarily by decreased bone formation, which differs from the increased bone resorption seen in postmenopausal osteoporosis. Despite this fundamental difference, current treatment recommendations are based primarily on experience with postmenopausal osteoporosis. Trials specific to PBC-related osteoporosis are small and have not consistently demonstrated a benefit in this population. As it stands, prevention of osteoporosis in PBC relies on the mitigation of risk factors such as smoking and alcohol use, as well as encouraging a healthy diet and weight-bearing exercise. The primary medical intervention for the treatment of osteoporosis in PBC remains bisphosphonates though a benefit in terms of fracture reduction has never been shown. This review outlines what is known regarding the pathogenesis of bone disease in PBC and summarizes current and emerging therapies.Christopher J Danford Hirsh D Trivedi Konstantinos Papamichael Elliot B Tapper Alan Bonder 2018World Journal of Gastroenterology2018,24,31:13
5Standard forward-viewing colonoscopy versus full-spectrum endoscopy: an international, multicentre, randomised, tandem colonoscopy trial显示文摘Ian M Gralnek Peter D Siersema Zamir Halpern Ori Segol Alaa Melhem Alain Suissa Erwin Santo Alan Sloyer Jay Fenster Leon M G Moons Vincent K Dik Ralph B D’Agostino Douglas K Rex 2014Lancet Oncology2014,,3:6
6Randomized trial in malignant biliary obstruction:Plastic vs partially covered metal stents显示文摘AIM:To compare efficacy and complications of par-tially covered self-expandable metal stent(pcSEMS)to plastic stent(PS)in patients treated for malignant,infrahilar biliary obstruction.METHODS:Multicenter prospective randomized clinical trial with treatment allocation to a pcWallstent(SEMS)or a 10 French PS.Palliative patients aged≥18,for infrahilar malignant biliary obstruction and a Karnofsky performance scale index>60%from 6 participating North American university centers.Primary endpoint was time to stent failure,with secondary outcomes of death,adverse events,Karnofsky performance score and short-form-36 scale administered on a three-monthly basis for up to 2 years.Survival analyses were performed for stent failure and death,with Cox proportional hazards regression models to determine significant predictive characteristics.RESULTS:Eighty-five patients were accrued over 37mo,42 were randomized to the SEMS group and 83patients were available for analyses.Time to stent failure was 385.3±52.5 d in the SEMS and 153.3±19.8 d in the PS group,P=0.006.Time to death did not differ between groups(192.3±23.4 d for SEMS vs211.5±28.0 d for PS,P=0.70).The only significant predictor was treatment allocation,relating to the time to stent failure(P=0.01).Amongst other measured outcomes,only cholangitis differed,being more common in the PS group(4.9%vs 24.5%,P=0.029).The small number of patients in follow-up limits longitudinal assessments of performance and quality of life.From an initially planned 120 patients,only 85 patients were recruited.CONCLUSION:Partially covered SEMS result in a longer duration till stent failure without increased complication rates,yet without accompanying measurable benefits in survival,performance,or quality of life.Peter L Moses Khalid M AlNaamani Alan N Barkun Stuart R Gordon Roger D Mitty M Stanley Branch Thomas E Kowalski Myriam Martel Viviane Adam 2013World Journal of Gastroenterology2013,19,46:6
7The human application of gene therapy to re-program T-cell specificity using chimeric antigen receptors显示文摘The adoptive transfer of T cells is a promising approach to treat cancers. Primary human T cells can be modified using viral and non-viral vectors to promote the specific targeting of cancer cells via the introduction of exogenous T-cell receptors(TCRs) or chimeric antigen receptors(CARs). This gene transfer displays the potential to increase the specificity and potency of the anticancer response while decreasing the systemic adverse effects that arise from conventional treatments that target both cancerous and healthy cells. This review highlights the generation of clinical-grade T cells expressing CARs for immunotherapy, the use of these cells to target B-cell malignancies and, particularly, the first clinical trials deploying the Sleeping Beauty gene transfer system, which engineers T cells to target CD19+ leukemia and non-Hodgkin's lymphoma.Alan D Guerrero Judy S Moyes Laurence JN Cooper 2014Chinese Journal of Cancer2014,33,9:4
8Rapid health transition in China, 1990–2010: findings from the Global Burden of Disease Study 2010显示文摘Gonghuan Yang Yu Wang Yixin Zeng George F Gao Xiaofeng Liang Maigeng Zhou Xia Wan Shicheng Yu Yuhong Jiang Mohsen Naghavi Theo Vos Haidong Wang Alan D Lopez Christopher JL Murray 2013The Lancet . 2013 (9882)2013,,9882:4
9Rho, Rac, and Cdc42 GTPases regulate the assembly of multimolecular focal complexes associated with actin stress fibers, lamellipodia, and filopodia显示文摘Catherine D Nobes Alan Hall 1995Cell1995,,1:3
10Single vs dual(en bloc) kidney transplants from donors ≤ 5 years of age: A single center experience显示文摘AIM: To compare outcomes between single and dual en bloc(EB) kidney transplants(KT) from small pediatric donors. METHODS: Monocentric nonprospective review of KTs from pediatric donors ≤ 5 years of age. Dual EB KT was defined as keeping both donor kidneys attached tothe inferior vena cava and aorta, which were then used as venous and arterial conduits for the subsequent transplant into a single recipient. Donor age was less useful than either donor weight or kidney size in decision-making for kidney utilization as kidneys from donors < 8 kg or kidneys < 6 cm in length were not transplanted. Post-transplant management strategies were standardized in all patients.RESULTS: From 2002-2015, 59 KTs were performed including 34 dual EB and 25 single KTs. Mean age of donors(17 mo vs 38 mo, P < 0.001), mean weight(11.0 kg vs 17.4 kg, P = 0.046) and male donors(50% vs 84%, P = 0.01) were lower in the dual EB compared to the single KT group, respectively. Mean cold ischemia time(21 h), kidney donor profile index(KDPI; 73% vs 62%) and levels of serum creatinine(SCr, 0.37 mg/d L vs 0.49 mg/d L, all P = NS) were comparable in the dual EB and single KT groups, respectively. Actuarial graft and patient survival rates at 5-years follow-up were comparable. There was one case of thrombosis resulting in graft loss in each group. Delayed graft function incidence(12% dual EB vs 20% single KT, P = NS) was slightly lower in dual EB KT recipients. Initial duration of hospital stay(mean 5.4 d vs 5.6 d) and the one-year incidences of acute rejection(6% vs 16%), operative complications(3% vs 4%), and major infection were comparable in the dual EB and single KT groups, respectively(all P = NS). Mean 12 mo SCr and abbreviated MDRD levels were 1.17 mg/d L vs 1.35 mg/d L and 72.5 m L/min per 1.73 m^2 vs 60.5 m L/min per 1.73 m^2(both P = NS) in the dual EB and single KT groups, respectively. CONCLUSION: By transplanting kidneys from young pediatric donors into adult recipients, one can effectively expand the limited donor pool and achieve excellent medium-term outcomes.Yousef Al-Shraideh Umar Farooq Hany El-Hennawy Alan C Farney Amudha Palanisamy Jeffrey Rogers Giuseppe Orlando Muhammad Khan Amber Reeves-Daniel William Doares Scott Kaczmorski Michael D Gautreaux Samy S Iskandar Gloria Hairston Elizabeth Brim Margaret Mangus Robert J Stratta 2016World Journal of Transplantation2016,6,1:3
11Rapid health transition in China, 1990–2010: findings from the Global Burden of Disease Study 2010显示文摘Gonghuan Yang Yu Wang Yixin Zeng George F Gao Xiaofeng Liang Maigeng Zhou Xia Wan Shicheng Yu Yuhong Jiang Mohsen Naghavi Theo Vos Haidong Wang Alan D Lopez Christopher JL Murray 2013The Lancet2013,,9882:3
12Structural health monitoring of bridges in the State of Connecticut显示文摘A joint effort between the Connecticut Department of Transportation and the University of Connecticut has been underway for more than 20 years to utilize various structural monitoring approaches to assess different bridges in Connecticut.This has been done to determine the performance of existing bridges,refine techniques needed to evaluate different bridge components,and develop approaches that can be used to provide a continuous status of a bridge's structural integrity.This paper briefly introduces the background of these studies,with emphasis on recent research and the development of structural health monitoring concepts.This paper presents the results from three different bridge types:a post-tensioned curved concrete box girder bridge,a curved steel box-girder bridge,and a steel multi-girder bridge.The structural health monitoring approaches to be discussed have been successfully tested using field data collected during multi-year monitoring periods,and are based on vibrations,rotations and strains.The goal has been to develop cost-effective strategies to provide critical information needed to manage the State of Connecticut's bridge infrastructure.Chengyin Liu Joshua Olund Alan Cardini Paul D'Attilio Eric Feldblum John DeWolf 2008Earthquake Engineering and Engineering Vibration2008,7,4:3
13Quality Improvement Guidelines for the Treatment of Lower Extremity Deep Vein Thrombosis with Use of Endovascular Thrombus Removal显示文摘Suresh Vedantham Patricia E. Thorpe John F. Cardella Clement J. Grassi Nilesh H. Patel Hector Ferral Lawrence V. Hofmann Bertrand M. Janne d’Othée Vittorio P. Antonaci Elias N. Brountzos Daniel B. Brown Louis G. Martin Alan H. Matsumoto Steven G. Meranze 2006Journal of Vascular and Interventional Radiology2006,,3:3
14Rapid health transition in China, 1990–2010: findings from the Global Burden of Disease Study 2010显示文摘Gonghuan Yang Yu Wang Yixin Zeng George F Gao Xiaofeng Liang Maigeng Zhou Xia Wan Shicheng Yu Yuhong Jiang Mohsen Naghavi Theo Vos Haidong Wang Alan D Lopez Christopher JL Murray 20132013 (9882)2013,,9882:3
15Dietary approaches following endoscopic retrograde cholangiopancreatography: A survey of selected endoscopists显示文摘AIM: To describe the dietary recommendations of experienced endoscopists for patients who have undergone endoscopic retrograde cholangiopancreatography (ERCP) and the factors that influence these recommendations. METHODS: Selected U.S. endoscopists with ERCP experience were surveyed by e-mail. A questionnaire with three hypothetical ERCP cases of patients at low, medium and high risk for development of post-ERCP pancreatitis (PEP) was shown. For each scenario, respondents were asked to recommend a post-procedure diet and time to first oral intake. Respondents were also asked about the effect of various clinical factors on their recommendations, including risk of PEP.RESULTS: 97/187 selected ASGE members (51.9%) responded. When risk of PEP was either low, medium or high, 53%, 88% and 96% recommended a diet of clear liquids/NPO respectively, and 2%, 5% and 18% recommended delaying first oral intake until the following day. About 88% of respondents gave the same type of diet to patients at high as those with moderate-risk of PEP (P = 0.04). However, 37% and 43% of respondents gave different types of diet to patients at low vs moderate-risk and low-risk vs high-risk of PEP respectively (P < 0.001). No statistically significant associations were found regarding the effect of other clinical factors or respondent demographics.CONCLUSION: Most experienced endoscopists limit diet to NPO/clear liquids after ERCP for patients at high or moderate risk of post-ERCP pancreatitis. About half allow a low-fat or regular diet in patients at low risk.Lincoln EVVC Ferreira Mark D Topazian William S Harmsen Alan R Zinsmeister Todd H Baron 2010World Journal of Gastrointestinal Endoscopy2010,2,12:3
16Listeria monocytogenes following orthotopic liver transplantation:Central nervous system involvement and review of the literature显示文摘Listeria monocytogene is a well-recognized cause of bacteremia in immunocompromised individuals,including solid organ transplant recipients,but has been rarely reported following orthotopic liver transplantation. We describe a case of listeria meningitis that occurred within a week after liver transplantation. The patient developed a severe headache that mimicked tacrolimus encephalopathy,and was subsequently diagnosed with listeria meningitis by cerebrospinal fluid culture. The infection was successfully treated with three-week course of intravenous ampicillin. Recurrent hepatitis C followed and was successfully treated with interferon alfa and ribavirin. Fourteen cases of listeriosis after orthotopic liver transplantation have been reported in the English literature. Most reported cases were successfully treated with intravenous ampicillin. There were four cases of listeria meningitis,and the mortality of them was 50%. Early detection and treatment of listeria meningitis are the key to obtaining a better prognosis.Shugo Mizuno Ivan R Zendejas Alan I Reed Robin D Kim Richard J Howard Alan W Hemming Denise C Schain Consuelo Soldevila-Pico Roberto J Firpi Shiro Fujita 2007World Journal of Gastroenterology2007,13,32:2
17Alternative projections of mortality and disability by cause 1990–2020: Global Burden of Disease Study显示文摘Christopher JL Murray Alan D Lopez 1997The Lancet . 1997 (9064)1997,,:2
18Efficacy of azacitidine compared with that of conventional care regimens in the treatment of higher-risk myelodysplastic syndromes: a randomised, open-label, phase III study显示文摘Pierre Fenaux Ghulam J Mufti Eva Hellstrom-Lindberg Valeria Santini Carlo Finelli Aristoteles Giagounidis Robert Schoch Norbert Gattermann Guillermo Sanz Alan List Steven D Gore John F Seymour John M Bennett John Byrd Jay Backstrom Linda Zimmerman David M 2009Lancet Oncology2009,,:2
19Metabolism and functions of gamma-aminobutyric acid显示文摘Barry J Shelp Alan W Bown Michael D McLean 1999Trends in Plant Science1999,,11:2
20Global and regional burden of disease and risk factors, 2001: systematic analysis of population health data显示文摘Alan D Lopez Colin D Mathers Majid Ezzati Dean T Jamison Christopher JL Murray 2006The Lancet . 2006 (9524)2006,,9524:2
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