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4141篇 您的检索式:作者名="MARTINS J A"
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1温度对美拉德反应的研究(英文)显示文摘本文报道了反应温度对以d-葡萄糖和l-甘氨酸水溶液模式体系美拉德反应的影响。研究了在不同反应温度(80、100、120℃)和不同反应时间下,体系中糖和氨基酸的降解程度,反应中间体:阿利德诺和有机酸的累积程度,类黑素的形成及pH变化程度。研究结果表明:随着反应温度和反应时间的增加,反应速率加快。吴少雄 M A J S van Boeke S I F S Martins 郭祀远 李琳 2005食品科学2005,26,7:54
2Cardiac autonomic neuropathy in patients with diabetes mellitus显示文摘Cardiac autonomic neuropathy(CAN)is an often overlooked and common complication of diabetes mellitus.CAN is associated with increased cardiovascular morbidity and mortality.The pathogenesis of CAN is complex and involves a cascade of pathways activated by hyperglycaemia resulting in neuronal ischaemia and cellular death.In addition,autoimmune and genetic factors are involved in the development of CAN.CAN might be subclinical for several years until the patient develops resting tachycardia,exercise intolerance,postural hypotension,cardiac dysfunction and diabetic cardiomyopathy.During its sub-clinical phase,heart rate variability that is influenced by the balance between parasympathetic and sympathetic tones can help in detecting CAN before the disease is symptomatic.Newer imaging techniques(such as scintigraphy)have allowed earlier detection of CAN in the pre-clinical phase and allowed better assessment of the sympathetic nervous system.One of the main difficulties in CAN research is the lack of a universally accepted definition of CAN;however,the Toronto Consensus Panel on Diabetic Neuropathy has recently issued guidance for the diagnosis and staging of CAN,and also proposed screening for CAN in patients with diabetes mellitus.A major challenge,however,is the lack of specific treatment to slow the progression or prevent the development of CAN.Lifestyle changes,improved metabolic control might prevent or slow the progression of CAN.Reversal will require combination of these treatments with new targeted therapeutic approaches.The aim of this article is to review the latest evidence regarding the epidemiology,pathogenesis,manifestations,diagnosis and treatment for CAN.Gerasimos Dimitropoulos Abd A Tahrani Martin J Stevens 2014World Journal of Diabetes2014,5,1:48
3Endoscopic ultrasound evaluation in the surgical treatment of duodenal and peri-ampullary adenomas显示文摘AIM:To investigate endoscopic ultrasound(EUS) for predicting depth of mucosal invasion and to analyze outcomes following endoscopic and transduodenal resection.METHODS:Records of 111 patients seen at our institution from November 1999 to July 2011 with the postoperative pathological diagnosis of benign ampullary and duodenal adenomas were reviewed.Records of patients who underwent preoperative EUS for diagnostic purposes were identified.The accuracy of EUS in predicting the absence of muscular invasion was assessed by comparing EUS reports to the final surgical pathological results.In addition,the incidence of the post-operative complications over a period of 30 d and the subsequent long-term outcome(recurrence) over a period of 30 mo associated with endoscopic and transduodenal surgical resection was recorded,compared and analyzed.RESULTS:Among 111 patients with benign ampullary and duodenal adenomas,47 underwent preoperative EUS for 29 peri-ampullary lesions and 18 duodenal lesions.In addition,computed tomography was performed in 18 patients,endoscopic retrograde cholangio-pancreatography in 10 patients and esophagogastroduodenoscopy in 22 patients.There were 43 patients with sporadic adenomas and 4 patients with familial adenomatous polyposis(FAP)/other polyposis syndromes.In 38(81%,P < 0.05) patients,EUS reliably identified absence of submucosal and muscularis invasion.In 4 cases,EUS underestimated submucosal invasion that was proven by pathology.In the other 5 patients,EUS predicted muscularis invasion which could not be demonstrated in the resected specimen.EUS predicted tumor muscularis invasion with a specificity of 88% and negative predictive value of 90%(P < 0.05).Types of resection performed included endoscopic resection in 22 cases,partial duodenectomy in 9 cases,transduodenal ampullectomy with sphincteroplasty in 10 cases and pancreaticoduodenectomy in 6 cases.The main post-operative final pathological results included villous adenoma(n = 5),adenoma(n = 8),tubulovillous adenoma(n = 10),tubular adenoma(n = 20) and hyperplastic polyp(n = 2).Among the 47 patients who underwent resection,8(17%,5 of which corresponded to surgical resection) developed post-procedural complications which included retroperitoneal hematoma,intra-abdominal abscess,wound infection,delayed gastric emptying and prolonged ileus.After median followup of 20 mo there were 6 local recurrences(13%,median follow-up = 20 mo) 4 of which were in patients with FAP.CONCLUSION:EUS accurately predicts the depth of mucosal invasion in suspected benign ampullary and duodenal adenomas.These patients can safely undergo endoscopic or local resection.Lilian C Azih Brett L Broussard Milind A Phadnis Martin J Heslin Mohamad A Eloubeidi Shayam Varadarajulu Juan Pablo Arnoletti 2013World Journal of Gastroenterology2013,19,4:13
4Serial imaging of human embryonic stem-cell engraftment and teratoma formation in live mouse models显示文摘表示为基于 radiopharmaceutical 的成像为生物体之发光成像或 HSV1 thymidine kinase (HSV1-TK ) 编码任何一个萤火虫酶(fLuc ) 的记者 transgene 的 lentiviral 向量的二种新类型被构造监视人的胚胎的干细胞(hESC ) 在在移植以后的活老鼠的嫁接和增长。任何一个 transgene 的组成的表示没在文化改变 hESCs 的性质。我们下次在 SCID 鼠标监视了 teratomas 的形成到测试(1 ) 是否修改基因的 hESCs 维持他们的发展 pluripotency,并且(2 ) 是否支撑了记者基因表示,允许 noninvasive,在一个活鼠标模型的 hESC 衍生物的整个身体的成像。我们在接种以后从修改基因的房间以及野类型的 hESCs 2-4 月的两种类型观察了 teratoma 形成。用一个光成像系统,从 fLuc-transduced hESCs 的生物体之发光容易在在摸得出的肿瘤能被检测以前,长忍受 teratomas 的老鼠被检测。开发一个 noninvasive 成像方法对诊所更容易地可译,我们也利用了 HSV1-TK 和它的特定的底层, 1-(2 鈥 ? deoxy-2 鈥 ?fluoro- 尾 - D-arabinofuranosyl )-5-[125I]iodouracil ([125I ] FIAU ) ,记者 / 探查对。在全身的管理以后,[125I ] FIAU 是仅仅由编码 transgene 的 HSV1-TK 酶的 phosphorylated 并且在 transduced 以内保留(并且移植) 房间,由单个光子的排放允许敏感、量的成像计算了断层摄影术。象这些那样的 Noninvasive 成像方法可以使我们能在实时接受者以内重复地监视移植人的干细胞的存在和分发在上一通过记者基因的表达式长期。Martin G Pomper Holly Hammond Xiaobing Yu Zhaohui Ye Catherine A Foss Doris D Lin James J Fox Linzhao Cheng 2009Cell Research2009,19,3:9
5重症败血症患者炎性介质水平对预后的影响显示文摘目的 :探索可早期预测败血症预后的炎性介质指标。方法 :前瞻性研究 ,观察期 2 8日 ,分析重症败血症患者与死亡相关的临床和实验室指标。结果 :共连续观察 2 6例 ,死亡 14例 (5 3.8%) ,且多死于研究阶段的第1周内 (74.0 %)。死亡组患者血总胆红素水平、4项全身炎性反应综合征 (SIRS)指标的积分和循环中的细胞间黏附分子 1(s ICAM 1)水平明显高于死亡组 ,其它炎性因子包括一些细胞因子和黏附分子的水平在 2组间差异不大。结论 :败血症患者的 s ICAM赵擎宇 张春玲 黄子通 M A Weigand H J Bardenheuer E Martin 2001中国危重病急救医学2001,13,11:7
6Early combined immunosuppression or conventional management in patients with newly diagnosed Crohn’s disease: an open randomised trial显示文摘Geert D’Haens Filip Baert Gert van Assche Philip Caenepeel Philippe Vergauwe Hans Tuynman Martine De Vos Sander van Deventer Larry Stitt Allan Donner Severine Vermeire Frank J Van De Mierop Jean-Charles R Coche Janneke van der Woude Thomas Ochsenkühn Ad A 2008The Lancet2008,,9613:5
7Effects of radiotherapy with concomitant and adjuvant temozolomide versus radiotherapy alone on survival in glioblastoma in a randomised phase III study: 5-year analysis of the EORTC-NCIC trial显示文摘Roger Stupp Monika E Hegi Warren P Mason Martin J van den Bent Martin JB Taphoorn Robert C Janzer Samuel K Ludwin Anouk Allgeier Barbara Fisher Karl Belanger Peter Hau Alba A Brandes Johanna Gijtenbeek Christine Marosi Charles J Vecht Karima Mokhtari Piet 2009Lancet Oncology2009,,5:4
8A comparative risk assessment of burden of disease and injury attributable to 67 risk factors and risk factor clusters in 21 regions, 1990–2010: a systematic analysis for the Global Burden of Disease Study 2010显示文摘Stephen S Lim Theo Vos Abraham D Flaxman Goodarz Danaei Kenji Shibuya Heather Adair-Rohani Mohammad A AlMazroa Markus Amann H Ross Anderson Kathryn G Andrews Martin Aryee Charles Atkinson Loraine J Bacchus Adil N Bahalim Kalpana Balakrishnan John Balmes S 20122012 (9859)2012,,9859:3
9Perfluorocarbon in vitreoretinal surgery and preoperative bevacizumab in diabetic tractional retinal detachment显示文摘AIM: To describe the en bloc perfluorodissection(EBPD) technique and to demonstrate the applicabilityof using preoperative intravitreal bevacizumab duringsmall-gauge vitreoretinal surgery(23-gauge transconjunctival sutureless vitrectomy) in eyes with advancedproliferative diabetic retinopathy(PDR) with tractionalretinal detachment(TRD).METHODS: This is a prospective, interventional caseseries. Participants included 114(eyes) with advancedproliferative diabetic retinopathy and TRD. EBPD wasperformed in 114 eyes(consecutive patients) during23-gauge vitrectomy with the utilization of preoperativebevacizumab(1.25 mg/-0.05 mL). Patients mean age was 45 years(range, 21-85 years). Surgical time had a mean of 55 min(Range, 25-85 min). Mean follow up of this group of patients was 24 mo(range, 12-32 mo). Main outcome measures included best-corrected visual acuity(BCVA), retinal reattachment, and complications.RESULTS: Anatomic success occurred in 100%(114/-114) of eyes. Significant visual improvement [≥ 2 Early Treatment Diabetic Retinopathy Study(ETDRS) lines] was obtained in 69.2%(79/-114), in 26 eyes(22.8%) BCVA remained stable, and in 8 eyes(7%) BCVA decreased(≥ 2 ETDRS lines). Final BCVA was 20/-50 or better in 24% of eyes, between 20/-60 and 20/-400 in 46% of eyes, and worse than 20/-400 in 30% of eyes. Complications included cataract in 32(28%) eyes, iatrogenic retinal breaks in 9(7.8%) eyes, vitreous hemorrhage requiring another procedure in 7(6.1%) eyes, and phthisis bulbi in 1(0.9%) eye.CONCLUSION: This study demonstrates the usefulne-ss of using preoperative intravitreal bevacizumab and EBPD during smallgauge vitreoretinal surgery in eyes with TRD in PDR.J Fernando Arevalo Martin A Serrano Juan D Arias 2014World Journal of Diabetes2014,5,5:3
10National Forest Inventories capture the multifunctionality of managed forests in Germany显示文摘Background:Forests perform various important ecosystem functions that contribute to ecosystem services.In many parts of the world,forest management has shifted from a focus on timber production to multi-purpose forestry,combining timber production with the supply of other forest ecosystem services.However,it is unclear which forest types provide which ecosystem services and to what extent forests primarily managed for timber already supply multiple ecosystem services.Based on a comprehensive dataset collected across 150 forest plots in three regions differing in management intensity and species composition,we develop models to predict the potential supply of 13 ecosystem services.We use those models to assess the level of multifunctionality of managed forests at the national level using national forest inventory data.Results:Looking at the potential supply of ecosystem services,we found trade-offs(e.g.between both bark beetle control or dung decomposition and both productivity or soil carbon stocks)as well as synergies(e.g.for temperature regulation,carbon storage and culturally interesting plants)across the 53 most dominant forest types in Germany.No single forest type provided all ecosystem services equally.Some ecosystem services showed comparable levels across forest types(e.g.decomposition or richness of saprotrophs),while others varied strongly,depending on forest structural attributes(e.g.phosphorous availability or cover of edible plants)or tree species composition(e.g.potential nitrification activity).Variability in potential supply of ecosystem services was only to a lesser extent driven by environmental conditions.However,the geographic variation in ecosystem function supply across Germany was closely linked with the distribution of main tree species.Conclusions:Our results show that forest multifunctionality is limited to subsets of ecosystem services.The importance of tree species composition highlights that a lack of multifunctionality at the stand level can be compensated by managing forests at the landscape level,when stands of complementary forest types are combined.These results imply that multi-purpose forestry should be based on a variety of forest types requiring coordinated planning across larger spatial scales.Nadja K.Simons María R.Felipe-Lucia Peter Schall Christian Ammer Jürgen Bauhus Nico Blüthgen Steffen Boch François Buscot Markus Fischer Kezia Goldmann Martin M.Gossner Falk Hänsel Kirsten Jung Peter Manning Thomas Nauss Yvonne Oelmann Rodica Pena Andrea Polle Swen C.Renner Michael Schloter Ingo Schöning Ernst-Detlef Schulze Emily F.Solly Elisabeth Sorkau Barbara Stempfhuber Tesfaye Wubet Jörg Müller Sebastian Seibold Wolfgang W.Weisser 2021Forest Ecosystems2021,8,1:2
11Impact of age on transcatheter aortic valve implantation outcomes:a comparison of patients aged≤ 80 years versus patients > 80 years显示文摘Frank van der Kley Philippe J van Rosendael Spyridon Katsanos Vasileios Kamperidis Nina A Marsan Ioannis Karalis Arend de Weger Meindert Palmen Jeroen J Bax Martin J Schalij Victoria Delgado 2016Journal of Geriatric Cardiology2016,13,1:2
12Percutaneous transluminal angioplasty balloons for endoscopic ultrasound-guided pancreatic duct interventions显示文摘BACKGROUND Endoscopic ultrasound(EUS)-guided main pancreatic duct(PD)access may be used when conventional endoscopic retrograde cholangiopancreatography(ERCP)techniques fail.The use of a percutaneous transluminal angioplasty balloon(PTAB),originally developed for vascular interventions,can be used to facilitate transmural(e.g.,transgastric)PD access and to dilate high-grade pancreatic strictures.AIM To describe the technique,efficacy,and safety of PTABs for EUS-guided PD interventions.METHODS Patients who underwent EUS with use of a PTAB from March 2011 to August 2021 were retrospectively identified from a tertiary care medical center supply database.PTABs included 3-4 French angioplasty catheters with 3-4 mm balloons designed to use over a 0.018-inch guidewire.The primary outcome was technical success.Secondary outcomes included incidence of adverse events(AEs)and need for early reintervention.RESULTS A total of 23 patients were identified(48%female,mean age 55.8 years).Chronic pancreatitis was the underlying etiology in 13(56.5%)patients,surgically altered anatomy(SAA)with stricture in 7(30.4%),and SAA with post-operative leak in 3(13.0%).Technical success was achieved in 20(87%)cases.Overall AE rate was 26%(n=6).All AEs were mild and included 1 pancreatic duct leak,2 cases of post-procedure pancreatitis,and 3 admissions for post-procedural pain.No patients required early re-intervention.CONCLUSION EUS-guided use of PTABs for PD access and/or stricture management is feasible with an acceptable safety profile and can be considered in patients when conventional ERCP cannulation fails.Jad P AbiMansour Barham K Abu Dayyeh Michael J Levy Andrew C Storm John A Martin Bret T Petersen Ryan J Law Mark D Topazian Vinay Chandrasekhara 2022World Journal of Gastrointestinal Endoscopy2022,14,8:2
13End-stage renal disease is associated with increased post endoscopic retrograde cholangiopancreatography adverse events in hospitalized patients显示文摘AIM To determine if end-stage renal disease (ESRD) is a risk factor for post endoscopic retrograde cholangio-pancreatography (ERCP) adverse events (AEs). METHODS We performed a retrospective cohort study using the Nationwide Inpatient Sample (NIS) 2011-2013. We identified adult patients who underwent ERCP using the International Classification of Diseases 9^(th) Revision (ICD-9-CM). Included patients were divided into three groups: ESRD, chronic kidney disease (CKD), and control. The primary outcome was post-ERCP AEs including pancreatitis, bleeding, and perforation determined based on specific ICD-9-CM codes. Secondary outcomes were length of hospital stay, in-hospital mortality, and admission cost. AEs and mortality were compared using multivariate logistic regression analysis.RESULTS There were 492175 discharges that underwent ERCP during the 3 years. The ESRD and CKD groups contained 7347 and 39403 hospitalizations respectively, whereas the control group had 445424 hospitalizations. Post-ERCP pancreatitis (PEP) was significantly higher in the ESRD group (8.3%) compared to the control group (4.6%) with adjusted odd ratio (aOR) = 1.7 (95% CI: 1.4-2.1, ~aP < 0.001). ESRD was associated with significantly higher ERCP-related bleeding (5.1%) compared to the control group 1.5% (aOR = 1.86, 95%CI: 1.4-2.4, ~aP < 0.001). ESRD had increased hospital mortality 7.1% vs 1.15% in the control OR = 6.6 (95%CI: 5.3-8.2, ~aP < 0.001), longer hospital stay with adjusted mean difference (aMD) = 5.9 d (95% CI: 5.0-6.7 d, ~aP < 0.001) and higher hospitalization charges aMD = $+82064 (95%CI: $68221-$95906, ~aP < 0.001). CONCLUSION ESRD is a risk factor for post-ERCP AEs and is associated with higher hospital mortality. Careful selection and close monitoring is warranted to improve outcomes.Tarek Sawas Fateh Bazerbachi Samir Haffar Won K Cho Michael J Levy John A Martin Bret T Petersen Mark D Topazian Vinay Chandrasekhara Barham K Abu Dayyeh 2018World Journal of Gastroenterology2018,24,41:2
14A comparative risk assessment of burden of disease and injury attributable to 67 risk factors and risk factor clusters in 21 regions, 1990–2010: a systematic analysis for the Global Burden of Disease Study 2010显示文摘Stephen S Lim Theo Vos Abraham D Flaxman Goodarz Danaei Kenji Shibuya Heather Adair-Rohani Mohammad A AlMazroa Markus Amann H Ross Anderson Kathryn G Andrews Martin Aryee Charles Atkinson Loraine J Bacchus Adil N Bahalim Kalpana Balakrishnan John Balmes S 2012The Lancet2012,,9859:2
15Properties of Ti1-xSixNy films deposited by concurrent cathodic arc evaporation and magnetron sputtering显示文摘Martin P J Bendavid A 2002Surf Coat Tech2002,,:2
16Camera models based on data from two calibration planes显示文摘MARTINS H A BIRK J R KELLEY R B 1981Computer Graphics Image Processing1981,17,2:2
17Dynamic capabilities: what are they? 显示文摘Eisenhardt K M Martin J A 2000Strategic Management Journal2000,21,1011:1
18Correlation of ESAT-6-specific gamma interferon production with pathology in cattle follo-wing Mycobacterium boris BCG vaccination against experimental bovine tuberculosis 显示文摘Martin H Vordermeier Mark A Chambers Paul J Cockle 2002Infect Immun2002,,70:1
19Dynamic Capabilities: What are they显示文摘Eisenhardt K M Martin J A 2000Strategic Management Journal2000,,21:1
20Leak detection and calibration using transients and genetic algorithms显示文摘Vitkovsky J P Simpson A R Martin F L 2000Journal Water Resource Planning and Management2000,126,4:1
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