维普中文期刊产品整合服务
5310篇 您的检索式:作者名="JAMES M"
    题名 作者 年代 出处 被引量
1斜拉桥有限元建模与模型修正显示文摘以圆弧桥面、单偏置斜塔的 Safti斜拉桥为对象 ,研究了斜拉桥的有限元建模技术和基于敏感度分析的有限元模型修正技术及其对该桥的应用。基于该桥现场测量的模态数据 ,修正后的有限元模型获得了较好的改善。夏品奇 James M WBrownjohn 2003振动工程学报2003,16,2:71
2帕博利珠单抗单用或与放疗联用治疗转移性非小细胞肺癌:两个随机试验的汇总分析显示文摘背景放疗可以提高整个机体对免疫治疗的应答。在Ⅱ期PEMBRO-RT研究和Ⅰ/Ⅱ期MDACC研究中,患有转移性非小细胞肺癌(NSCLC)的患者被随机分配入组,接受免疫治疗(帕博利珠单抗)+放疗联合疗法,或免疫治疗单一疗法。当上述2个研究单独分析时,联合疗法组显示出潜在获益。由于每个研究的样本量较小,缓解率和结局并未显示出统计学意义,然而却有显著的临床获益。因此,本研究进行汇总分析,来判断放疗是否会改善转移性NSCLC患者的免疫治疗应答。方法PEMBRO-RT和MDACC研究纳入标准:患者年龄≥18岁,患有转移性NSCLC,且有≥1处未经放疗照射的病灶,以便进行射野外应答监测。PEMBRO-RT研究纳入曾接受过化疗患者,MDACC研究纳入曾接受过治疗或新诊断患者。2个研究中的患者均未接受过免疫治疗。在PEMBRO-RT研究中患者被等比例随机分配入组,并根据吸烟状态进行分层(分为<10年组和≥10年组)。MDACC研究的患者根据放疗计划可行性被等比例随机分配入2个受试组。由于联合治疗组的干预本质,每个研究中的放疗均不适用盲法。在2个研究中,不论是否进行放疗,均静脉滴入帕博利珠单抗(每3周200 mg)。在PEMBRO-RT研究中,在放疗(24 Gy 3次分割照射)结束后1周给予第1剂帕博利珠单抗。在MDACC研究中,在第1次放疗(50 Gy 4次分割照射或45 Gy 15次分割照射)同时给予帕博利珠单抗。仅检测未经照射病灶的应答。本研究的终点为最佳射野外(远隔)应答率(ARR)、最佳射野外疾病控制率(ACR)、12周时ARR、12周时ACR、无进展生存期(PFS)和总生存期(OS)。2个研究的意向治疗(ITT)人群均纳入分析。PEMBRO-RT研究(NCT02492568)和MDACC研究(NCT02444741)均在ClinicalTrials.gov上注册。发现纳入148例患者,76例接受帕博利珠单抗治疗,72例接受帕博利珠单抗+放疗治疗。所有患者随访时间中位数为33个月[四分位距(IQR):32.4~33.6]。148例患者中124例(84%)组织学特征为非鳞癌,111例(75%)患者曾经接受过化疗。组间没有基线特征差异,包括PD-L1表达状态和转移灶体积。最常见的照射部位为肺转移灶(39%,28/72)、胸腔内淋巴结(21%,15/72)和非原发灶(17%,12/72)。帕博利珠单抗组和联合治疗组的最佳ARR分别为19.7%(15/76)和41.7%(30/72),OR=2.96,95%CI:1.42~6.20,P=0.0039;最佳ACR分别为43.4%(33/76)和65.3%(47/72),OR=2.51,95%CI:1.28~4.91,P=0.0071;PFS中位数分别为4.4(IQR:2.9~5.9)和9.0个月(IQR:6.8~11.2),HR=0.67,95%CI:0.45~0.99,P=0.045;OS中位数分别为8.7(IQR:6.4~11.0)和19.2个月(IQR:14.6~23.8),OR=0.67,95%CI:0.54~0.84,P=0.0004。在汇总分析中没有发现新的安全问题。解读帕博利珠单抗免疫疗法+放疗显著提高转移性NSCLC患者的应答和改善治疗结局。这些结果需要在三期临床试验中进行验证。陈大卫(翻译) 于金明(校对) Willemijn S M E Theelen Vivek Verma Brian P Hobbs Heike M U Peulen Joachim G J V Aerts Idris Bahce Anna Larissa N Niemeijer Joe Y Chang Patricia M de Groot Quynh-Nhu Nguyen Nathan I Comeaux George R Simon Ferdinandos Skoulidis Steven H Lin Kewen He Roshal Patel John Heymach Paul Baas James W Welsh 2021中华肿瘤防治杂志2021,28,24:49
3帕博利珠单抗治疗伴脑转移NSCLC患者的一项非随机、开放Ⅱ期试验的长期随访结果和生物标志物分析显示文摘背景与目的我们开展了一项帕博利珠单抗用于伴未治疗脑转移的非小细胞肺癌(non-small cell lung cancer,NSCLC)或黑色素瘤患者的疗效和安全性的II期试验,旨在评估程序性死亡受体1(programmed cell death 1,PD-1)抑制剂在中枢神经系统(central nervous system,CNS)中的疗效。中期结果已发表,现报道对NSCLC队列的更新分析结果。方法这是一项开放性、单中心、II期试验。纳入标准:年龄≥18岁,诊断为晚期NSCLC并伴有≥1个5 mm-20 mm脑转移病灶,既往从未治疗或之前放疗后进展,无神经系统症状,不需要激素治疗且美国东部肿瘤协作组(Eastern Cooperative Oncology Group,ECOG)<2分。患者每2周接受一次帕博利珠单抗(10 mg/kg)治疗。队列1为程序性死亡配体1(programmed cell death ligand 1,PD-L1)≥1%的患者,队列2为PD-L1<1%或未评估的患者。主要终点是脑转移患者缓解比例。所有经治患者均纳入疗效与安全性终点的分析。该研究已结束入组,并于Clinicaltrials.gov登记注册,注册号为NCT02085070。结果2014年3月31日-2018年5月21日,共42例患者接受治疗。中位随访时间为8.3个月(IQR:4.5个月-26.2个月)。队列1的37例患者中11例有脑转移缓解[29.7%(95%CI:15.9%-47.0%)]。队列2未观察到缓解。治疗相关的3级-4级不良事件(adverse events,AEs)包括2例肺炎、1例全身症状、1例结肠炎、1例肾上腺皮质功能不全、1例高血糖症和1例低钾血症。6例(14%)患者发生了治疗相关的严重不良事件,包括肺炎、急性肾损伤、低钾血症和肾上腺皮质功能不全。没有观察到治疗相关死亡病例。结论帕博利珠单抗治疗PD-L1≥1%的NSCLC伴脑转移患者有效,且对所有纳入的未经治疗的脑转移患者安全。需要进一步探索免疫治疗用于NSCLC合并CNS转移。Sarah B GOLDBERG Kurt A SCHALPER Scott N GETTINGER Amit MAHAJAN Roy S HERBST Anne C CHANG Rogerio LILENBAUM Frederick H WILSON Sacit Bulent OMAY James B YU Lucia JILAVEANU Thuy TRAN Kira PAVLIK Elin ROWEN Heather GERRSH Annette KOMLO Richa GUPTA Hailey WYATT Matthew RIBEIRO Yuval KLUGER Geyu ZHOU Wei WEI Veronica L CHANG Harriet M KLUGER 董晓荣(翻译/校对) 2021中国肺癌杂志2021,24,9:34
4Sharing Clinical Trial Data: A Proposal from the International Committee of Medical Journal Editors显示文摘The International Committee of Medical Journal Editors (ICMJE) believes that there is an ethical obligation to responsibly share data generated by interventional clinical trials because participants have put themselves at risk.In a growing consensus,many funders around the world-foundations,government agencies,and industry-now mandate data sharing.Here,we outline ICMJE's proposed requirements to help meet this obligation.We encourage feedback on the proposed requirements.Anyone can provide feedback at www.icmje.org by April 18,2016.Darren B Taichman Joyce Backus Christopher Baethge Howard Bauchner Peter W de Leeuw Jeffrey M Drazen John Fletcher Frank Frizelle Irish Groves Abraham Haileamlak Astrid James Christine Laine Larry Peiperl Anja Pinborg Peush Sahni Si-Nan Wu 2016Chinese Medical Journal2016,,2:20
5Cancer risk in primary sclerosing cholangitis: Epidemiology,prevention, and surveillance strategies显示文摘Primary sclerosing cholangitis(PSC) is a rare cholestatic liver disease characterized by progressive fibroinflammatory destruction of the intra-and/or extrahepatic biliary ducts. While its features and disease course can be variable,most patients with PSC have concurrent inflammatory bowel disease and will eventually develop liver cirrhosis and end-stage liver disease, with liver transplantation representing the only potentially curative option. Importantly,PSC is associated with a significantly increased risk of malignancy compared to the general population, mainly cholangiocarcinoma, gallbladder carcinoma,hepatocellular carcinoma, and colorectal cancer, with nearly 50% of deaths in patients with PSC being due to cancer. Therefore, robust surveillance strategies are needed, though uncertainty remains regarding how to best do so. In this review, we discuss the epidemiology, prevention, and surveillance of cancers in patients with PSC. Where evidence is limited, we present pragmatic approaches based on currently available data and expert opinion.Brian M Fung Keith D Lindor James H Tabibian 2019World Journal of Gastroenterology2019,25,6:15
6Foreign object ingestion and esophageal food impaction:An update and review on endoscopic management显示文摘Foreign body ingestion encompasses both foreign object ingestion(FOI) and esophageal food impaction(EFI) and represents a common and clinically significant scenario among patients of all ages. The immediate risk to the patient ranges from negligible to life-threatening, depending on the ingested substance,its location, patient fitness, and time to appropriate therapy. This article reviews the FOI and EFI literature and highlights important considerations and implications for pediatric and adult patients as well as their providers. Where published literature is insufficient to provide evidence-based guidance, expert opinion is included to supplement the content of this comprehensive review.Brian M Fung Seth Sweetser Louis M Wong Kee Song James H Tabibian 2019World Journal of Gastrointestinal Endoscopy2019,11,3:15
7Feedstock choice,pyrolysis temperature and type influence biochar characteristics:a comprehensive meta-data analysis review显示文摘Various studies have established that feedstock choice,pyrolysis temperature,and pyrolysis type influence final biochar physicochemical characteristics.However,overarching analyses of pre-biochar creation choices and correlations to biochar characteristics are severely lacking.Thus,the objective of this work was to help researchers,biochar-stakeholders,and practitioners make more well-informed choices in terms of how these three major parameters influence the final biochar product.Utilizing approximately 5400 peer-reviewed journal articles and over 50,800 individual data points,herein we elucidate the selections that influence final biochar physical and chemical properties,total nutrient content,and perhaps more importantly tools one can use to predict biochar’s nutrient availability.Based on the large dataset collected,it appears that pyrolysis type(fast or slow)plays a minor role in biochar physico-(inorganic)chemical characteristics;few differences were evident between production styles.Pyrolysis temperature,however,affects biochar’s longevity,with pyrolysis temperatures>500℃ generally leading to longer-term(i.e.,>1000 years)half-lives.Greater pyrolysis temperatures also led to biochars containing greater overall C and specific surface area(SSA),which could promote soil physico-chemical improvements.However,based on the collected data,it appears that feedstock selection has the largest influence on biochar properties.Specific surface area is greatest in wood-based biochars,which in combination with pyrolysis temperature could likely promote greater changes in soil physical characteristics over other feedstock-based biochars.Crop-and other grass-based biochars appear to have cation exchange capacities greater than other biochars,which in combination with pyrolysis temperature could potentially lead to longer-term changes in soil nutrient retention.The collected data also suggest that one can reasonably predict the availability of various biochar nutrients(e.g.,N,P,K,Ca,Mg,Fe,and Cu)based on feedstock choice and total nutrient content.Results can be used to create designer biochars to help solve environmental issues and supply a variety of plant-available nutrients for crop growth.James A.Ippolito Liqiang Cui Claudia Kammann Nicole Wrage‑Mönnig Jose MEstavillo Teresa Fuertes‑Mendizabal Maria Luz Cayuela Gilbert Sigua Jeff Novak Kurt Spokas Nils Borchard 2020Biochar2020,2,4:13
8Acute lower gastrointestinal bleeding from a dieulafoy lesion proximal to the anorectal junction post-orthotopic liver transplant显示文摘A 67-year-old woman underwent an orthotopic liver transplantation for end stage liver disease secondary to chronic autoimmune hepatitis. She developed sudden massive hematochezia on post-operative day 23 with hemodynamic compromise. The source of hemorrhage was found at colonoscopy after careful irrigation and inspection to be a dieulafoy lesion situated just proximal to the anorectal junction. Hemostasis was achieved with epinephrine injection and thermal coagulation.Wichian Apiratpracha Jin Kee Ho James J Powell Eric M Yoshida 2006World Journal of Gastroenterology2006,12,46:12
9Clarifying sub-genomic positions of QTLs for flowering habit and fruit quality in U.S. strawberry (Fragaria×ananassa) breeding populations using pedigree-based QTL analysis显示文摘The cultivated strawberry(Fragaria×ananassa)is consumed worldwide for its flavor and nutritional benefits.Genetic analysis of commercially important traits in strawberry are important for the development of breeding methods and tools for this species.Although several quantitative trait loci(QTL)have been previously detected for fruit quality and flowering traits using low-density genetic maps,clarity on the sub-genomic locations of these QTLs was missing.Recent discoveries in allo-octoploid strawberry genomics led to the development of the IStraw90 single-nucleotide polymorphism(SNP)array,enabling high-density genetic maps and finer resolution QTL analysis.In this study,breeder-specified traits were evaluated in the Eastern(Michigan)and Western(Oregon)United States for a common set of breeding populations during 2 years.Several QTLs were validated for soluble solids content(SSC),fruit weight(FWT),pH and titratable acidity(TA)using a pedigree-based QTL analysis approach.For fruit quality,a QTL for SSC on linkage group(LG)6A,a QTL for FWT on LG 2BII,a QTL for pH on LG 4CII and two QTLs for TA on LGs 2A and 5B were detected.In addition,a large-effect QTL for flowering was detected at the distal end of LG 4A,coinciding with the FaPFRU locus.Marker haplotype analysis in the FaPFRU region indicated that the homozygous recessive genotype was highly predictive of seasonal flowering.SNP probes in the FaPFRU region may help facilitate marker-assisted selection for this trait.Sujeet Verma Jason D Zurn Natalia Salinas Megan M Mathey Beatrice Denoyes James F Hancock Chad E Finn Nahla V Bassil Vance M Whitaker 2017Horticulture Research2017,4,1:10
10Relationship between the exocrine and endocrine pancreas after acute pancreatitis显示文摘AIM:To determine the prevalence and time course of pancreatic exocrine insufficiency in individuals with newly diagnosed prediabetes or diabetes mellitus after acute pancreatitis.METHODS:Relevant literature cited in three major biomedical journal databases(EMBASE,MEDLINE,and Scopus)was reviewed independently by two authors.There were no language constraints but the search was limited to human studies.Studies included were cohort studies of adult patients who were discharged after an attack of acute pancreatitis.Patients were excluded if they were under 18 years of age or had a previous diagnosis of prediabetes or diabetes mellitus,pancreatic exocrine insufficiency,or chronic pancreatitis.The main outcome measure was the prevalence of concomitant pancreatic exocrine insufficiency in patients who were diagnosed with prediabetes and diabetes mellitus after an attack of acute pancreatitis.Subgroup analysis was conducted for patients who were diagnosed with prediabetes only and those who were diagnosed withdiabetes mellitus only.Subgroup analysis looking at the time course of concomitant pancreatic exocrine and endocrine insufficiency was also conducted.Pooled prevalence and corresponding 95%confidence intervals were calculated for all outcome measures and P-values<0.05 were deemed statistically significant.RESULTS:Eight clinical studies comprising of 234patients met all eligibility criteria.The pooled prevalence of newly diagnosed prediabetes or diabetes in individuals after acute pancreatitis was 43%(95%CI:30%-56%).The pooled prevalence of pancreatic exocrine insufficiency in individuals after acute pancreatitis was 29%(95%CI:19%-39%).The prevalence of concomitant pancreatic exocrine insufficiency in individuals with newly diagnosed prediabetes or diabetes was 40%(95%CI:25%-55%).The prevalence of concomitant pancreatic exocrine insufficiency among individuals with prediabetes alone and diabetes mellitus alone was 41%(95%CI:12%-75%)and 39%(95%CI:28%-51%),respectively.Further analysis showed that the prevalence of concomitant pancreatic exocrine insufficiency in individuals with prediabetes or diabetes decreases over time after an attack of acute pancreatitis.CONCLUSION:Pancreatic exocrine insufficiency occurs in 40%of individuals with newly diagnosed prediabetes or diabetes mellitus after acute pancreatitis.Further studies are needed to investigate the pathogenesis of diabetes in this setting.Stephanie L M Das James I C Kennedy Rinki Murphy Anthony R J Phillips John A Windsor Maxim S Petrov 2014World Journal of Gastroenterology2014,20,45:9
11Increased expression of tumor necrosis factor-a is associated with advanced colorectal cancer stages显示文摘AIM:To detect the expression of tumor necrosis factor-a(TNF-a)in colorectal cancer(CRC)cells among Saudi patients,and correlate its expression with clinical stages of cancer.METHODS:Archival tissue specimens were collected from 30 patients with CRC who had undergone surgical intervention at King Khalid University Hospital.Patient demographic information,including age and gender,tumor sites,and histological type of CRC,was recorded.To measure TNF-a m RNA expression in CRC,total RNA was extracted from tumor formalin-fixed,paraffinembedded,and adjacent normal tissues.Reverse transcription and reverse transcription polymerase chain reaction were performed.Colorectal tissue microarrays were constructed to investigate the protein expression of TNF-a by immunohistochemistry.RESULTS:The relative expression of TNF-a m RNA in colorectal cancer was significantly higher than that seen in adjacent normal colorectal tissue.High TNF-a gene expression was associated with StageⅢandⅣneoplasms when compared with earlier tumor stages(P=0.004).Eighty-three percent of patients(25/30)showed strong TNF-a positive staining,while only 10%(n=3/30)of patients showed weak staining,and 7%(n=2/30)were negative.We showed the presence of elevated TNF-a gene expression in cancer cells,which strongly correlated with advanced stages of tumor.CONCLUSION:High levels of TNF-a expression could be an independent diagnostic indicator of colorectal cancer,and targeting TNF-a might be a promising prognostic tool by assessment of the clinical stages of CRC.Omar A Al Obeed Khayal A Alkhayal Abdulmalik Al Sheikh Ahmad M Zubaidi Mansoor-Ali Vaali-Mohammed Robin Boushey James H Mckerrow Maha-Hamadien Abdulla 2014World Journal of Gastroenterology2014,20,48:8
12Diabetic heart disease:A clinical update显示文摘Diabetes mellitus(DM) significantly increases the risk of heart disease,and DMrelated healthcare expenditure is predominantly for the management of cardiovascular complications.Diabetic heart disease is a conglomeration of coronary artery disease(CAD),cardiac autonomic neuropathy(CAN),and diabetic cardiomyopathy(DCM).The Framingham study clearly showed a 2 to 4-fold excess risk of CAD in patients with DM.Pathogenic mechanisms,clinical presentation,and management options for DM-associated CAD are somewhat different from CAD among nondiabetics.Higher prevalence at a lower age and more aggressive disease in DM-associated CAD make diabetic individuals more vulnerable to premature death.Although common among diabetic individuals,CAN and DCM are often under-recognised and undiagnosed cardiac complications.Structural and functional alterations in the myocardial innervation related to uncontrolled diabetes result in damage to cardiac autonomic nerves,causing CAN.Similarly,damage to the cardiomyocytes from complex pathophysiological processes of uncontrolled DM results in DCM,a form of cardiomyopathy diagnosed in the absence of other causes for structural heart disease.Though optimal management of DM from early stages of the disease can reduce the risk of diabetic heart disease,it is often impractical in the real world due to many reasons.Therefore,it is imperative for every clinician involved in diabetes care to have a good understanding of the pathophysiology,clinical picture,diagnostic methods,and management of diabetes-related cardiac illness,to reduce morbidity and mortality among patients.This clinical review is to empower the global scientific fraternity with up-to-date knowledge on diabetic heart disease.Jake Rajbhandari Cornelius James Fernandez Mayuri Agarwal Beverly Xin Yi Yeap Joseph M Pappachan 2021World Journal of Diabetes2021,12,4:8
13Understanding important features of deep learning models for segmentation of high-resolution transmission electron microscopy images显示文摘Cutting edge deep learning techniques allow for image segmentation with great speed and accuracy.However,application to problems in materials science is often difficult since these complex models may have difficultly learning meaningful image features that would enable extension to new datasets.In situ electron microscopy provides a clear platform for utilizing automated image analysis.In this work,we consider the case of studying coarsening dynamics in supported nanoparticles,which is important for understanding,for example,the degradation of industrial catalysts.By systematically studying dataset preparation,neural network architecture,and accuracy evaluation,we describe important considerations in applying deep learning to physical applications,where generalizable and convincing models are required.With a focus on unique challenges that arise in high-resolution images,we propose methods for optimizing performance of image segmentation using convolutional neural networks,critically examining the application of complex deep learning models in favor of motivating intentional process design.James P.Horwath Dmitri N.Zakharov Rémi Mégret Eric A.Stach 2020npj Computational Materials2020,,1:8
14评估清晨或夜晚服用降压药对24h动态血压的影响:清晨或夜间服用降压药的希腊英国联合研究显示文摘观察数据显示,临床血压水平与随后的主要不良心血管事件之间存在强烈的线性关系。然而,动态血压监测显示,夜间血压水平比24h或白天血压水平更能预测主要的不良心血管事件。此外,夜间与白天的血压比值和杓型状态也是心血管结局的重要独立预测因素。这些发现可能对抗高血压药物的最佳给药时间有影响,一些研究表明,夜晚服用降压药可能较白天服药减少心血管事件。Poulter NR Savopoulos C Anjum A Apostolopoulou M Chapman N Cross M Falaschetti E Fotiadis S James RM Kanellos I Szigeti M Thom S Sever P Thompson D Hatzitolios AI 赵狄 练桂丽 2018中华高血压杂志2018,26,10:7
15Computed tomography and patient risk:Facts,perceptions and uncertainties显示文摘Since its introduction in the 1970s, computed tomography(CT) has revolutionized diagnostic decision-making. One of the major concerns associated with the widespread use of CT is the associated increased radiation exposure incurred by patients. The link between ionizing radiation and the subsequent development of neoplasia has been largely based on extrapolating data from studies of survivors of the atomic bombs dropped in Japan in 1945 and on assessments of the increased relative risk of neoplasia in those occupationally exposed to radiation within the nuclear industry. However, the association between exposure to low-dose radiation from diagnostic imaging examinations and oncogenesis remains unclear. With improved technology, significant advances have already been achieved with regards to radiation dose reduction. There are several dose optimization strategies available that may be readily employed including omitting unnecessary images at the ends of acquired series, minimizing the number of phases acquired, and the use of automated exposure control as opposed to fixed tube current techniques. In addition, new image reconstruction techniques that reduce radiation dose have been developed in recent years with promising results. These techniques use iterative reconstruction algorithms to attain diagnostic quality images with reduced image noise at lower radiation doses.Stephen P Power Fiachra Moloney Maria Twomey Karl James Owen J O'Connor Michael M Maher 2016World Journal of Radiology2016,8,12:7
16Recent trends in liver transplantation for alcoholic liver disease in the United States显示文摘AIM To examine temporal changes in the indications for liver transplantation(LT) and characteristics of patients transplanted for alcoholic liver disease(ALD).METHODS We performed a retrospective cohort analysis of trends in the indication for LT using the United Network for Organ Sharing(UNOS) database between 2002 and 2015. Patients were grouped by etiology of the liver disease and characteristics were compared using χ~2 and t-tests. Time series analysis was used identifying any year with a significant change in the number of transplants per year for ALD, and before and after eras were modeled using a general linear model. Subgroup analysis of recipients with ALD was performed by age group, gender, UNOS region and etiology(alcoholic cirrhosis, alcoholic hepatitis and hepatitis C-alcoholic cirrhosis dual listing).RESULTS Of 74216 liver transplant recipients, ALD(n = 9400, 12.7%) was the third leading indication for transplant after hepatitis C and hepatocellular carcinoma. Transplants for ALD, increased from 12.8%(553) in 2002 to 16.5%(1020) in 2015. Time series analysis indicated a significant increase in the number of transplants per year for ALD in 2013(P = 0.03). There were a stable number of transplants per year between 2002 and 2012(linear coefficient 3, 95%CI:-4.6, 11.2) an increase of 177 per year between 2013 and 2015(95%CI: 119, 234). This increase was significant for all age groups except those 71-83 years old, was observed for both genders, and was incompletely explained by a decrease in transplants for hepatitis C and ALD dual listing. All UNOS regions except region 9 saw an increase in the mean number of transplants per year when comparing eras, and this increase was significant in regions 2, 3, 4, 5, 6, 8, 10 and 11.CONCLUSION There has been a dramatic increase in the number of transplants for ALD starting in 2013.Catherine E Kling James D Perkins Robert L Carithers Dennis M Donovan Lena Sibulesky 2017World Journal of Hepatology2017,9,36:6
17Risk stratification for ST segment elevation myocardial infarction in the era of primary percutaneous coronary intervention显示文摘Acute coronary syndromes presenting with ST elevation are usually treated with emergency reperfusion/revascularisation therapy. In contrast current evidence and national guidelines recommend risk stratification for non ST segment elevation myocardial infarction(NSTEMI) with the decision on revascularisation dependent on perceived clinical risk. Risk stratification for STEMI has no recommendation. Statistical risk scoring techniques in NSTEMI have been demonstrated to improve outcomes however their uptake has been poor perhaps due to questions over their discrimination and concern for application to individuals who may not have been adequately represented in clinical trials. STEMI is perceived to carry sufficient risk to warrant emergency coronary intervention [by primary percutaneous coronary intervention(PPCI)] even if this results in a delay to reperfusion with immediate thrombolysis. Immediate thrombolysis may be as effective in patients presenting early, or at low risk, but physicians are poor at assessing clinical and procedural risks and currently are not required to consider this. Inadequate data on risk stratification in STEMI inhibits the option of immediate fibrinolysis, which may be cost-effective. Currently the mode of reperfusion for STEMI defaults to emergency angiography and percutaneous coronary intervention ignoring alternative strategies. This review article examines the current risk scores and evidence base for risk stratification for STEMI patients. The requirements for an ideal STEMI risk score are discussed.Richard A Brogan Christopher J Malkin Philip D Batin Alexander D Simms James M McLenachan Christopher P Gale 2014World Journal of Cardiology2014,6,8:6
18血压变异性预测自发性脑出血患者的院内不良预后显示文摘越来越多的证据表明,较高的收缩压变异性(systolicblood pressure variability ,SBPV)可能与脑出血患者的不良预后相关。该研究探讨了 SB PV 与院内脑出血预后之间的关系。研究者在2个医疗系统中收集了10年的自发性脑出血患者的连续数据。记录人口统计学、病史、实验室测试、计算机断层扫描数据、院内治疗情况以及神经和功能评估。在入院后24h内获取血压记录。刘青 叶鹏 Divani AA Liu X Di Napoli M Lattanzi S Ziai W James ML Jafarli A Jafari M Saver JL Hemphill JC Vespa PM Mayer SA Petersen A 2019中华高血压杂志2019,27,8:6
19子痫前期:病理生理学和临床意义显示文摘子痫前期是一种常见疾病,尤其影响首次妊娠。其临床表现多样,但通常表现为高血压和蛋白尿。这些全身症状是由于在合体滋养细胞的压力作用下,胎盘释放了可溶性因子。子痫前期主要有早发型和迟发型2种亚型,其他几种亚型目前尚未确定。早发型子痫前期是由于胎盘缺陷而出现,而迟发型子痫前期可能是由于胎盘的正常衰老,以及母体对心血管和代谢疾病的遗传易感性交互产生。子痫前期因胎盘和母体因素产生的原因因人而异。最近的研究主要集中在早孕期的胎盘-子宫相互作用。本文旨在对关于子痫前期的预测、预防和治疗方法的最新文献进行归纳综述。Graham J Burton Christopher W Redman James M Roberts Ashley Moffett 秦萌(译) 金滢 潘凌亚(校 2019英国医学杂志中文版2019,22,11:6
20Sieving characteristics of cytokine-and peroxide-induced epithelial barrier leak:Inhibition by berberine显示文摘AIM:To study whether the inflammatory bowel disease(IBD)colon which exhibits varying severity and cytokine levels across its mucosa create varying types of transepithelial leak.METHODS:We examined the effects of tumor necrosis factor-α(TNF-α),interferon-γ(IFN-γ),interleukin-1-β(IL1β)and hydrogen peroxide(H_2O_2)-singly and in combinations-on barrier function of CACO-2 cell layers.Our focus was on the type(not simply the magnitude)of transepithelial leak generated by these agents as measured by transepithelial electrical resistance(TER)and transepithelial flux of ^(14)C-D-mannitol,3H-Lactulose and ^(14)C-Polyethylene glycol as radiolabeled probe molecules.The isoquinoline alkaloid,berberine,was then examined for its ability to reduce specific types of transepithelial leak.RESULTS:Exposure to TNF-α alone(200 ng/mL;48 h)induced a 50% decrease in TER,i.e.,increased leak of Na^+ and Cl--with only a marginal but statistically significant increase in transepithelial leak of ^(14)C-mannitol(Jm).Exposure to TNF-α + IFN-γ(200 ng/mL;48 h)+ IL1β(50 ng/mL;48 h)did not increase the TER change(from TNF-α alone),but there was now a 100% increase in J_m.There however was no increase in transepithelial leak of two larger probe molecules,~3H-lactulose and ^(14)C-polyethylene glycol(PEG).However,exposure to TNF-α + IFN-γ + IL1β followed by a 5 h exposure to2 mmol/L H_2O_2 resulted in a 500% increase in ^(14)C-PEG leak as well as leak to the luminal mitogen,epidermal growth factor.CONCLUSION:This model of graded transepithelial leak is useful in evaluating therapeutic agents reducing IBD morbidity by reducing barrier leak to various luminal substances.Katherine M DiGuilio Christina M Mercogliano Jillian Born Brendan Ferraro Julie To Brittany Mixson Allison Smith Mary Carmen Valenzano James M Mullin 2016World Journal of Gastrointestinal Pathophysiology2016,7,2:6
返回顶部 每页显示:
共266页 首页 上一页 第1页 下一页 末页 /266 跳转

网站首页 | 关于我们 | 联系我们 | 产品服务 | 客服中心 | 广告服务 | 版权声明 | 网站联盟 | 友情链接 | 售卡网点

版权所有© 渝B2-20050021-1 渝公网安备 50019002500403号 违法和不良信息举报中心

互联网出版许可证 新出网证(渝)字10号 全国400电话 - 免长途话费