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255篇 您的检索式:作者名="Adrian D"
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1Contrast-enhanced ultrasound of histologically proven hepatic epithelioid hemangioendothelioma显示文摘AIM: To analyze contrast-enhanced ultrasound(CEUS) features of histologically proven hepatic epithelioid hemangioendothelioma(HEHE) in comparison to other multilocular benign focal liver lesions(FLL).METHODS: Twenty-five patients with histologically proven HEHE and 45 patients with histologically proven multilocular benign FLL were retrospectively reviewed. Four radiologists assessed the CEUS enhancement pattern in consensus.RESULTS: HEHE manifested as a single(n = 3) or multinodular(n = 22) FLL. On CEUS, HEHE showed rim-like(18/25, 72%) or heterogeneous hyperenhancement(7/25, 28%) in the arterial phase and hypoenhancement(25/25, 100%) in the portal venous and late phases(PVLP), a sign of malignancy. Eighteen patients showed central unenhanced areas(18/25, 72%); in seven patients(7/25, 28%), more lesions were detected in the PVLP. In contrast, all patients with hemangioma and focal nodular hyperplasia showed hyperenhancement as the most distinctive feature(P < 0.01).CONCLUSION: CEUS allows for characterization of unequivocal FLL. By analyzing the hypoenhancement in the PVLP, CEUS can determine the malignant nature of HEHE.Yi Dong Wen-Ping Wang Vito Cantisani Mirko D'Onofrio Andre Ignee Lorenzo Mulazzani Adrian Saftoiu Zeno Sparchez Ioan Sporea Christoph F Dietrich 2016World Journal of Gastroenterology2016,22,19:21
2Use of second generation contrast-enhanced ultrasound in the assessment of focal liver lesions显示文摘Ultrasound (US) is often the first imaging modality employed in patients with suspected focal liver lesions. The role of US in the characterisation of focal liver lesions has been transformed with the introduction of specific contrast media and the development of specialized imaging techniques. Ultrasound now can fully characterise the enhancement pattern of hepatic lesions, similar to that achieved with contrast enhanced multiphasic computed tomography (CT) and magnetic resonance imaging (MRI). US contrast agents are safe, well-tolerated and have very few contraindications. Furthermore, real-time evaluation of the vascularity of focal liver lesions has become possible with the use of the newer microbubble contrast agents. This article reviews the enhancement pattern of the most frequent liver lesions seen, using the second generation US contrast media. The common pitfalls for each type of lesion are discussed. The recent developments in US contrast media and specific imaging techniques have been a major advance and this technique, in view of the intrinsic advantages of US, will undoubtedly gain popularity in the years to come.Stanislas HX Morin Adrian KP Lim eremy FL Cobbold Simon D Taylor-Robinson 2007World Journal of Gastroenterology2007,13,45:16
3Confocal laser endomicroscopy and immunoendoscopy for real-time assessment of vascularization in gastrointestinal malignancies显示文摘Gastrointestinal cancers represent a major cause of morbidity and mortality,with incomplete response to chemotherapy in the advanced stages and poor prognosis.Angiogenesis plays a crucial part in tumor growth and metastasis,with most gastrointestinal cancers depending strictly on the development of a new and devoted capillary network.Confocal laser endomicroscopy is a new technology which allows in vivo microscopic analysis of the gastrointestinal mucosa and its microvascularization during ongoing endoscopy by using topically or systemically administered contrast agents.Targeting markers of angiogenesis in association with confocal laser endomicroscopic examination(immunoendoscopy),as a future challenge,will add functional analysis to the morphological aspect of the neoplastic process.This review describes previous experience in endomicroscopic examination of the upper and lower digestive tract with emphasis on vascularization,resulting in a broad spectrum of potential clinical applications,and also preclinical research that could be translated to human studies.Dan Ionut Gheonea Tatiana Crtnǎ Tudorel Ciurea Carmen Popescu Anca Bǎdǎrǎu Adrian Sǎftoiu 2011World Journal of Gastroenterology2011,17,1:6
4Brugada拟表型:一个新的临床实体显示文摘Brugada拟表型(Brugada phenocopy,BrP)是临床实体,它与真正的Brugada综合征(Brugada syndrome,BrS)具有相同的心电图波形,但前者是由各种临床状况诱发的。在某种相关的潜隐状况下,BrP的特征表现为心前区导联V1~V3呈1型或2型Brugada心电图波形。随着潜隐状况的纠正,这些心电图波形恢复正常。本研究中,我们回顾了BrP的分类、与BrS鉴别的方法及有关BrP病因的最新研究结果。此外,我们提供了BrP国际在线注册的更新数据,并讨论了BrP未来的研究方向。Byron H Gottschalk Daniel D Anselm Adrian Baranchuk 蒋祖勋 2015江苏实用心电学杂志2015,0,4:5
5Role of autophagy in differential sensitivity of hepatocarcinoma cells to sorafenib显示文摘AIM: To investigate the role of sorafenib(SFN) in autophagy of hepatocellular carcinoma(HCC). We evaluated how SFN affects autophagy signaling pathway in human HCC cell lines. METHODS: Two different human HCC cell lines, Hep3 B and Huh7, were subjected to different concentrations of SFN. Cell viability and onset of apoptosis were determined with colorimetric assay and immunoblotting analysis, respectively. The changes in autophagy-related proteins, including LC3, ULK1, AMPK, and LKB, were determined with immunoblotting analysis in the presence or absence of SFN. To assess autophagic dynamics, autophagic flux was measured with chloroquine, a lysosomal inhibitor. The autophagic responsiveness between different HCC cell lines was compared under the autophagy enhancing conditions.RESULTS: Hep3 B cells were significantly more resistant to SFN than Huh7 cells. Immunoblotting analysis revealed a marked increase in SFN-mediated autophagy flux in Huh7 cells, which was, however, absent in Hep3 B cells. While both starvation and rapamycin enhanced autophagy in Huh7 cells, only rapamycin increased autophagy in Hep3 B cells. Immunoblotting analysis of autophagy initiation proteins showed that SFN substantially increased phosphorylation of AMPK and consequently autophagy in Huh7, but not in Hep3 B cells.CONCLUSION: The autophagic responsiveness to SFN is distinct between Hep3 B and Huh7 cells. Resistance of Hep3 B cells to SFN may be associated with altered autophagy signaling pathways.Trevan D Fischer Jin-Hee Wang Adrian Vlada Jae-Sung Kim Kevin E Behrns 2014World Journal of Hepatology2014,6,10:5
6Imaging of liver cancer显示文摘Improvements in imaging technology allow exploitation of the dual blood supply of the liver to aid in the identif ication and characterisation of both malignant and benign liver lesions. Imaging techniques available include contrast enhanced ultrasound, computed tomography and magnetic resonance imaging. This review discusses the application of several imaging techniques in the diagnosis and staging of both hepatocellular carcinoma and cholangiocarcinoma and outlines certain characteristics of benign liver lesions. The advantages of each imaging technique are highlighted, while underscoring the potential pitfalls and limitations of each imaging modality.Ben Ariff Claire R Lloyd Sameer Khan Mohamed Shariff Andrew V Thillainayagam Devinder S Bansi Shahid A Khan Simon D Taylor-Robinson Adrian KP Lim 2009World Journal of Gastroenterology2009,15,11:4
7Acid‐suppressive therapy is associated with spontaneous bacterial peritonitis in cirrhotic patients: A meta‐analysis显示文摘Abhishek Deshpande Vinay Pasupuleti Priyaleela Thota Chaitanya Pant Sulaiman Mapara Sohaib Hassan David D K Rolston Thomas J Sferra Adrian V Hernandez 2013J Gastroenterol Hepatol2013,,2:3
8Non-invasive splenic parameters of portal hypertension:Assessment and utility显示文摘BACKGROUND Portal hypertension is a major complication of cirrhosis that is associated with significant morbidity and mortality.The present gold-standard method to risk stratify and observe cirrhosis patients with portal hypertension is hepatic venous pressure gradient measurement or esophagogastroduodenoscopy.However,these methods are invasive,carry a risk of complications and are associated with significant patient discomfort.Therefore,non-invasive splenic parameters are of clinical interest as potential useful markers in determining the presence of portal hypertension.However,diagnostic accuracy and reproducibility remains unvalidated.AIM To assess the diagnostic accuracy of spleen stiffness,area and diameter in predicting the presence of portal hypertension.METHODS Of 50 patients with varying liver disease pathologies were prospectively recruited from the St.Mary’s Hospital Liver Unit in London;25 with evidence of portal hypertension and 25 with no evidence of portal hypertension.Liver stiffness,spleen stiffness,spleen diameter and spleen area were measured using the Philips Affiniti 70 elastography point quantification point shear wave elastography system.The aspartate aminotransferase-to-platelet-ratio-index(APRI)score was also calculated.Performance measures,univariate and multivariate logistic regression were used to evaluate demographic,clinical and elastography variables.Interclass correlation coefficient was used to determine the reproducibility of splenic area and diameter.RESULTS On univariate and individual performance,platelet count[area under the receiver operating characteristic(AUROC)0.846,P value<0.001],spleen area(AUROC 0.828,P value=0.002)and APRI score(AUROC 0.827,P value<0.001)were the most accurate variables in identifying the presence of portal hypertension.On multivariate logistic regression models constructed,the combination of spleen area greater than 57.90 cm2 and platelet count less than 126×10^9 had 63.2%sensitivity and 100%specificity,100%positive predictive value and 100%negative predictive value.An alternative combination of spleen stiffness greater than 29.99 kPa and platelet count less than 126×10^9 had 88%sensitivity,75%specificity,78.6%positive predictive value and 85.7%negative predictive value.An interclass correlation coefficient value of 0.98(95%CI:0.94-0.99,P value<0.001)and 0.96(95%CI:0.91-0.99,P value<0.001)were determined for inter-operator variability for spleen area and diameter respectively.CONCLUSION Spleen area,spleen stiffness and platelet count may be useful markers to assess the presence of portal hypertension in patients of various etiologies.Ayesha Karim Ahmad Sebastiana Atzori James Maurice Simon D Taylor-Robinson Adrian KP Lim 2020World Journal of Hepatology2020,12,11:2
9Early infant male circumcision:Systematic review,risk-benefit analysis,and progress in policy显示文摘AIM To determine whether recent evidence-based United States polices on male circumcision(MC) apply to comparable Anglophone countries,Australia and New Zealand.METHODS Articles in 2005 through 2015 were retrieved from PubM ed using the keyword 'circumcision' together with 36 relevant subtopics.A further PubM ed search was performed for articles published in 2016.Searches of the EMBASE and Cochrane databases did not yield additional citable articles.Articles were assessed for quality and those rated 2+ and above according to the Scottish Intercollegiate Grading System were studied further.The most relevant andrepresentative of the topic were included.Bibliographies were examined to retrieve further key references.Randomized controlled trials,recent high quality systematic reviews or meta-analyses(level 1++ or 1+ evidence) were prioritized for inclusion.A risk-benefit analysis of articles rated for quality was performed.For efficiency and reliability,recent randomized controlled trials,metaanalyses,high quality systematic reviews and large welldesigned studies were used if available.Internet searches were conducted for other relevant information,including policies and Australian data on claims under Medicare for MC.RESULTS Evidence-based policy statements by the American Academy of Pediatrics(AAP) and the Centers for Disease Control and Prevention(CDC) support infant and later age male circumcision(MC) as a desirable public health measure.Our systematic review of relevant literature over the past decade yielded 140 journal articles that met our inclusion criteria.Together,these showed that early infant MC confers immediate and lifelong benefits by protecting against urinary tract infections having potential adverse long-term renal effects,phimosis that causes difficult and painful erections and 'ballooning' during urination,inflammatory skin conditions,inferior penile hygiene,candidiasis,various sexually transmissible infections in both sexes,genital ulcers,and penile,prostate and cervical cancer.Our risk-benefit analysis showed that benefits exceeded procedural risks,which are predominantly minor,by up to 200 to 1.We estimated that more than 1 in 2 uncircumcised males will experience an adverse foreskin-related medical condition over their lifetime.Wide-ranging evidence from surveys,physiological measurements,and the anatomical location of penile sensory receptors responsible for sexual sensation strongly and consistently suggested that MC has no detrimental effect on sexual function,sensitivity or pleasure.United States studies showed that early infant MC is cost saving.The evidence supporting early infant MC has further strengthened since the positive AAP and CDC reviews.CONCLUSION Affirmative MC policies are needed in Australia and New Zealand.Routine provision of accurate,unbiased education,and access in public hospitals,will maximize health and financial benefits.Brian J Morris Sean E Kennedy Alex D Wodak Adrian Mindel David Golovsky Leslie Schrieber Eugenie R Lumbers David J Handelsman John B Ziegler 2017World Journal of Clinical Pediatrics2017,6,1:2
10Role of microbubble ultrasound contrast agents in the non-invasive assessment of chronic hepatitis C-related liver disease显示文摘长期地感染丙肝病毒的病人经常得长期的肝疾病,对肝损伤的严厉的评价在认为病毒的根除是治疗以前被要求。这篇文章检验从标准答案肝活体检视当前可得到的各种各样的评价方法到血清学的标记和成像。超声是在临床的实践的最广泛地使用的成像形式之一并且已经是为肝疾病的一个首要的诊断工具。Microbubble 超声对比代理人允许更高的分辨率要获得的图象和对要执行的微脉管的变化的功能的评价。在确定的这些代理人的角色肝的损害的状态作为与丙肝在病人决定肝疾病的阶段和等级的一个可行方法被讨论。尽管当前限制了到专家中心,提高对比的超声将不可避免地在临床的背景增加的微水泡的可获得性。Scott Grier Adrian KP Lim Nayna Patel Jeremy FL Cobbold Howard C Thomas Isobel J Cox Simon D Taylor-Robinson 2006World Journal of Gastroenterology2006,12,22:2
11Brugada phenocopy: A new electrocardiogram phenomenon显示文摘Brugada phenocopies(BrP) are clinical entities that are etiologically distinct from true congenital Brugada syndrome. BrP are characterized by type 1 or type 2 Brugada electrocardiogram(ECG) patterns in precordial leads V1-V3. However, BrP are elicited by various un-derlying clinical conditions such as myocardial ischemia, pulmonary embolism, electrolyte abnormalities, or poor ECG filters. Upon resolution of the inciting underlying pathological condition, the BrP ECG subsequently nor-malizes. To date, reports have documented BrP in the context of singular clinical events. More recently, recur-rent BrP has been demonstrated in the context of re-current hypokalemia. This demonstrates clinical repro-ducibility, thereby advancing the concept of this new ECG phenomenon. The key to further understanding the pathophysiological mechanisms behind BrP requires experimental model validation in which these phenom-ena are reproduced under strictly controlled environ-mental conditions. The development of these validation models will help us determine whether BrP are tran-sient alterations of sodium channels that are not repro-ducible with a sodium channel provocative test or al-ternatively, a malfunction of other ion channels. In this editorial, we discuss the conceptual emergence of BrP as a new ECG phenomenon, review the progress made to date and identify opportunities for further investiga-tion. In addition, we also encourage investigators that are currently reporting on these cases to use the term BrP in order to facilitate literature searches and to help establish this emerging concept.Daniel D Anselm Jennifer M Evans Adrian Baranchuk 2014World Journal of Cardiology2014,6,3:2
12Interaction between castanospermine an immunosuppressant and cyclosporin A in rat cardiac transplantation显示文摘AIM: To investigate the interaction between castanospermine and cyclosporin A(Cs A) and to provide an explanation for it.METHODS: The alkaloid castanospermine was prepared from the seeds of Castanospermum austral consistently achieving purity. Rat heterotopic cardiac transplantation and mixed lymphocyte reactivity were done using genetically inbred strains of PVG(donor) and DA(recipient). For the mixed lymphocyte reaction stimulator cells were irradiated with 3000 rads using a linear accelerator. Cyclosporin A was administered by gavage and venous blood collected 2 h later(C_2). The blood levels of Cs A(Neoral) were measured by immunoassay which consisted of a homogeneous enzyme assay(EMIT) on Cobas Mira. Statistical analyses of interactions were done by an acceleratedfailure time model with Weibull distribution for allograft survival and logistic regression for the mixed lymphocyte reactivity.RESULTS: Castanospermine prolonged transplant survival times as a function of dose even at relatively low doses. Cyclosporin A also prolonged transplant survival times as a function of dose particularly at doses above 2 mg/kg. There were synergistic interactions between castanospermine and Cs A in the prolongation of cardiac allograft survival for dose ranges of Cs A by castanospermine of(0 to 2) mg/kg by(0 to 200) mg/kg(HR = 0.986; 95%CI: 0.981-0.992; P < 0.001) and(0 to 3) mg/kg by(0 to 100) mg/kg(HR = 0.986; 95%CI: 0.981-0.992; P < 0.001) respectively. The addition of castanospermine did not significantly increase the levels of cyclosporin A on day 3 or day 6 for all doses of Cs A. On the contrary, cessation of castanospermine in the presence of Cs A at 2 mg/kg significantly increased the Cs A level(P = 0.002). Castanospermine inhibited mixed lymphocyte reactivity in a dose dependent manner but without synergistic interaction. CONCLUSION: There is synergistic interaction between castanospermine and Cs A in rat cardiac transplantation. Neither the mixed lymphocyte reaction nor the metabolism of Cs A provides an explanation.Adrian D Hibberd David A Clark Paul R Trevillian Patrick Mcelduff 2016World Journal of Transplantation2016,6,1:2
13TiC-TiB2 composites: A review of phase relationships, processing and properties 显示文摘VALLAURI D ATLAS I C ADRIAN A 2008J Eur Ceram Soc2008,28,8:1
14Timing of mother and child depression in a longitudinal study of chil- dren at risk 显示文摘Hammen C Burge D Adrian C 1991Consulting and Clinical Psychology1991,59,:1
15Inhibitors of VIM-2 by screening pharmacologically active and click-chemistry compound libraries显示文摘Minond D Adrian SA Subramaniam P 2009Bioorganic & Med Chemist2009,17,14:1
16Bombesin receptor subtype mediation of gastroenteropancreatic hormone seere-tion in rats 显示文摘Varga G Adrian T E Coy D H 1994Peptides1994,15,4:1
17Brominated flame retardants and perfluorinated compounds in indoor dust from homes and offices in Flanders, Belgium显示文摘Wendy D’Hollander Laurence Roosens Adrian Covaci Christa Cornelis Hans Reynders Karen Van Campenhout Pim de Voogt Lieven Bervoets 2010Chemosphere2010,,4:1
18Partitioning solute transport between infiltration and overland flow under rainfall显示文摘Havis R N Smith R E Adrian D D 1992Water Resources Research1992,28,10:1
19Minimally invasive liver resection for huge(≥10cm)tumors:an international multicenter matched cohort study with regression discontinuity analyses显示文摘Background:The application and feasibility of minimally invasive liver resection(MILR)for huge liver tumours(≥10 cm)has not been well documented.Methods:Retrospective analysis of data on 6,617 patients who had MILR for liver tumours were gathered from 21 international centers between 2009-2019.Huge tumors and large tumors were defined as tumors with a size≥10.0 cm and 3.0-9.9 cm based on histology,respectively.1:1 coarsened exact-matching(CEM)and 1:2 Mahalanobis distance-matching(MDM)was performed according to clinically-selected variables.Regression discontinuity analyses were performed as an additional line of sensitivity analysis to estimate local treatment effects at the 10-cm tumor size cutoff.Results:Of 2,890 patients with tumours≥3 cm,there were 205 huge tumors.After 1:1 CEM,174 huge tumors were matched to 174 large tumors;and after 1:2 MDM,190 huge tumours were matched to 380 large tumours.There was significantly and consistently increased intraoperative blood loss,frequency in the application of Pringle maneuver,major morbidity and postoperative stay in the huge tumour group compared to the large tumour group after both 1:1 CEM and 1:2 MDM.These findings were reinforced in RD analyses.Intraoperative blood transfusion rate and open conversion rate were significantly higher in the huge tumor group after only 1:2 MDM but not 1:1 CEM.Conclusions:MILR for huge tumours can be safely performed in expert centers It is an operation with substantial complexity and high technical requirement,with worse perioperative outcomes compared to MILR for large tumors,therefore judicious patient selection is pivotal.Tan-To Cheung Xiaoying Wang Mikhail Efanov Rong Liu David Fuks Gi-Hong Choi Nicholas LSyn Charing CChong Iswanto Sucandy Adrian KHChiow Marco VMarino Mikel Gastaca Jae Hoon Lee TPeter Kingham Mathieu D’Hondt Sung Hoon Choi Robert PSutcliffe Ho-Seong Han Chung Ngai Tang Johann Pratschke Roberto ITroisi Brian KPGoh International Robotic and Laparoscopic Liver Resection Study Group Collaborators 2021Hepatobiliary Surgery and Nutrition2021,10,5:1
20The role of emotion in explaining consumer satisfaction and future behavioural intention 显示文摘MARTIN D SUSAN H ADRIAN P 2008Journal of Services Marketing2008,22,3:1
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