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545篇 您的检索式:作者名="Regis"
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1Pancreatic neuroendocrine neoplasms: Magnetic resonance imaging features according to grade and stage显示文摘AIM To describe magnetic resonance(MR) imaging features of pancreatic neuroendocrine neoplasms(Pan NENs) according to their grade and tumor-nodes-metastases stage by comparing them to histopathology and todetermine the accuracy of MR imaging features in predicting their biological behavior.METHODS This study was approved by our institutional review board; requirement for informed patient consent was waived due to the retrospective nature of the study. Preoperative MR examinations of 55 Pan NEN patients(29 men, 26 women; mean age of 57.6 years, range 21-83 years) performed between June 2013 and December 2015 were reviewed. Qualitative and quantitative features were compared between tumor grades and stages determined by histopathological analysis.RESULTS Ill defined margins were more common in G2-3 and stage Ⅲ-Ⅳ PanN ENs than in G1 and low-stage tumors(P < 0.001); this feature had high specificity in the identification of G2-3 and stage Ⅲ-Ⅳ tumors(90.3% and 96%, 95%CI: 73.1-97.5 and 77.7-99.8). The mean apparent diffusion coefficient value was significantly lower in G2-3 and stage Ⅲ-Ⅳ lesions compared to well differentiated and low-stage tumors(1.09 × 10-3 mm2/s vs 1.45 × 10-3 mm2/s and 1.10 × 10-3 mm2/s vs 1.53 × 10-3 mm2/s, P = 0.003 and 0.001). Receiving operator characteristic analysis determined optimal cutoffs of 1.21 and 1.28 × 10-3 mm2/s for the identification of G2-3 and stage Ⅲ-Ⅳ tumors, with sensitivity and specificity values of 70.8/80.7% and 64.5/64%(95%CI: 48.7-86.6/60-92.7 and 45.4-80.2/42.6-81.3).CONCLUSION MR features of PanN ENs vary according to their grade of differentiation and their stage at diagnosis and could predict the biological behavior of these tumors.Riccardo De Robertis Sara Cingarlini Paolo Tinazzi Martini Silvia Ortolani Giovanni Butturini Luca Landoni Paolo Regi Roberto Girelli Paola Capelli Stefano Gobbo Giampaolo Tortora Aldo Scarpa Paolo Pederzoli Mirko D'Onofrio 2017World Journal of Gastroenterology2017,23,2:16
2Endoscopic mucosal resection of colorectal polyps in typical UK hospitals显示文摘AIM:To evaluate the outcomes of endoscopic mucosal resection(EMR) for colorectal polyps,with particular regard to procedural complications and recurrence rate,in typical United Kingdom(UK) hospitals that perform an average of about 25 colonic EMRs per year.METHODS:A total of 239 colorectal polyps(≥ 10 mm) resected from 199 patients referred to Rochdale Infirmary,Salford Royal Hospital and Royal Oldham Hospital for EMR between January 2003 and January 2009 were studied.RESULTS:The mean size of polyps resected was 19.6 ± 12.4 mm(range 10-80 mm).The overall major complication rate was 2.1%.Complications were less frequent with non-adenomas compared with the other groups(Pearson's χ 2 test,P < 0.0001).Resections of largersized polyps were more likely to result in complications(unpaired t-test,P = 0.021).Recurrence was associated with histology,with carcinoma-in-situ more likely to recur compared with low-grade dysplasia [hazard ratio(HR) 186.7,95% confidence interval(95% CI):8.81-3953.02,P = 0.001].Distal lesions were also more likely to recur compared with right-sided and transverse colon lesions(HR 5.93,95% CI:1.35-26.18,P = 0.019).CONCLUSION:EMR for colorectal polyps can be performed safely and effectively in typical UK hospitals.Stricter follow-up is required for histologically advanced lesions due to increased recurrence risk.Teegan R Lim Venkat Mahesh Salil Singh Benjamin HL Tan Mohamed Elsadig Nerukav Radhakrishnan Phil Conlong Chris Babbs Regi George 2010World Journal of Gastroenterology2010,16,42:11
3Notch signaling controls chondrocyte hypertrophy via indirect regulation of Sox9显示文摘RBPjk-dependent Notch signaling regulates both the onset of chondrocyte hypertrophy and the progression to terminal chondrocyte maturation during endochondral ossification. It has been suggested that Notch signaling can regulate Sox9 transcription, although how this occurs at the molecular level in chondrocytes and whether this transcriptional regulation mediates Notch control of chondrocyte hypertrophy and cartilage development is unknown or controversial. Here we have provided conclusive genetic evidence linking RBPjk-dependent Notch signaling to the regulation of Sox9 expression and chondrocyte hypertrophy by examining tissuespecific Rbpjk mutant(Prx1Cre;Rbpjkf/f), Rbpjk mutant/Sox9 haploinsufficient(Prx1Cre;Rbpjkf/f;Sox9f/1),and control embryos for alterations in SOX9 expression and chondrocyte hypertrophy during cartilage development. These studies demonstrate that Notch signaling regulates the onset of chondrocyte maturation in a SOX9-dependent manner, while Notch-mediated regulation of terminal chondrocyte maturation likely functions independently of SOX9. Furthermore, our in vitro molecular analyses of the Sox9 promoter and Notch-mediated regulation of Sox9 gene expression in chondrogenic cells identified the ability of Notch to induce Sox9 expression directly in the acute setting, but suppresses Sox9 transcription with prolonged Notch signaling that requires protein synthesis of secondary effectors.Anat Kohn Timothy P Rutkowski Zhaoyang Liu Anthony J Mirando Michael J Zuscik Regis J O'Keefe Matthew J Hilton 2015Bone Research2015,3,3:8
4Optimization of transit total bus stop time models显示文摘Several factors influence bus transit reliability which includes bus stop conditions along the route,traffic conditions,route of travel and time of day.The overall transit bus reliability is generally affected by dwell time(DT),the fare payment method,the bus stop location,and the number of passengers alighting or boarding.A new variable is defined in this study,total bus stop time(TBST),which is the summation of DT and the time it takes a bus to effectively park at a bus stop and the re-entering the traffic stream.It is suggested that the overall bus transit reliability along routes could be improved if the TBST is minimized at bus stops.In this study,TBST models for bus stops located at mid-blocks and near intersections were developed based on multivariate regression analysis using ordinary least squares method.Data collection was conducted at 60 bus stops,30 of which were near intersections and 30 at mid-blocks,in Washington DC during morning,mid-day and evening peak hours.The variables observed at each bus stop are as follows:number of passengers alighting or boarding,DT,TBST,bus stop type,bus pad,length number of lanes on approach to the bus stop,and permitted parking.Statistical inferences were based on 5%level of significance.From the results,it was inferred that the new variable,TBST,could potentially be used to improve scheduling and transit bus systems planning in a dense urban area.Stephen Arhin Errol Noel Melissa F.Anderson Lakeasha Williams Asteway Ribisso Regis Stinson 2016Journal of Traffic and Transportation Engineering(English Edition)2016,3,2:5
5Gastric endoscopic submucosal dissection as a treatment for early neoplasia and for accurate staging of early cancers in a United Kingdom Caucasian population显示文摘AIM To investigate the efficacy of endoscopic submucosal dissection(ESD) at diagnosing and treating superficial neoplastic lesions of the stomach in a United Kingdom Caucasian population.METHODS Data of patients treated with or considered for ESD at a tertiary referral center in the United Kingdom were retrieved for a period of 2 years(May 2015 to June 2017) from the electronic patient records of the hospital. Only Caucasian patients were included. Primary outcomes were curative resection(CR) and were defined as ESD resections with clear horizontal and vertical margin and an absence of lympho-vascular invasion, poor differentiation and submucosal involvement on histological evaluation of the resected specimen. Secondary end-points were reversal of dysplasia at 12 mo endoscopic follow-up and/or at the latest follow up. Change in histological diagnosis pre and post ESD was also analysed.RESULTS Twenty-four patients were initially identified with intention to treat. 19 patients were eligible after mapping gastroscopy and ESD was attempted on a total of 25 ESD lesions, 4 of which failed and had to be aborted mid-procedure. Out of 21 ESD performed, en-bloc resection was achieved in 71.4% of cases. Resection was considered complete on endoscopy in 90.5% of cases compared to only 38.1% on histology. A total of 6 resections were considered curative(28%), 5 noncurative(24%) and 10 indefinite for CR or non-CR(24%). ESD changed the histological diagnosis in 66.6% of cases post ESD. Endoscopic follow-up in the 'indefinite' group and CR group showed that 50% and 80% of patients were clear of dysplasia at the latest follow-up respectively; 2 cases of recurrence were observed in the 'indefinite'group. Survival rate for the entire cohort was 91.7%.CONCLUSION This study provides early evidence for the efficacy of ESD as a therapeutic and diagnostic intervention in Caucasian populations and supports its application in the United Kingdom.Aisha Sooltangos Matthew Davenport Stephen McGrath Jonathan Vickers Siba Senapati Kurshid Akhtar Regi George Yeng Ang 2017World Journal of Gastrointestinal Endoscopy2017,9,12:3
6Glial fibrillary acidic protein levels are associated with global histone H4 acetylation after spinal cord injury in rats显示文摘Emerging evidence has suggested global histone H4 acetylation status plays an important role in neural plasticity. For instance, the imbalance of this epigenetic marker has been hypothesized as a key factor for the development and progression of several neurological diseases. Likewise, astrocytic reactivity-a wellknown process that markedly influences the tissue remodeling after a central nervous system injury-is crucial for tissue remodeling after spinal cord injury(SCI). However, the linkage between the above-mentioned mechanisms after SCI remains poorly understood. We sought to investigate the relation between both glial fibrillary acidic protein(GFAP) and S100 calcium-binding protein B(S100B)(astrocytic reactivity classical markers) and global histone H4 acetylation levels. Sixty-one male Wistar rats(aged ~3 months) were divided into the following groups: sham; 6 hours post-SCI; 24 hours post-SCI; 48 hours post-SCI; 72 hours post-SCI; and 7 days post-SCI. The results suggested that GFAP, but not S100B was associated with global histone H4 acetylation levels. Moreover, global histone H4 acetylation levels exhibited a complex pattern after SCI, encompassing at least three clearly defined phases(first phase: no changes in the 6, 24 and 48 hours post-SCI groups; second phase: increased levels in the 72 hours post-SCI group; and a third phase: return to levels similar to control in the 7 days post-SCI group). Overall, these findings suggest global H4 acetylation levels exhibit distinct patterns of expression during the first week post-SCI, which may be associated with GFAP levels in the perilesional tissue. Current data encourage studies using H4 acetylation as a possible biomarker for tissue remodeling after spinal cord injury.Mayara Ferraz de Menezes Fabricio Nicola Ivy Reichert Vital da Silva Adriana Vizuete Viviane Rostirola Eisner Leder Leal Xavier Carlos Alberto Saraiva Goncalves Carlos Alexandre Netto Regis Gemerasca Mestriner 2018Neural Regeneration Research2018,13,11:2
7细胞分离培养在实验室诊断眼部单纯疱疹病毒感染疾病的误诊和漏诊情况(英文)显示文摘目的:对比聚合酶链反应(PCR)和细胞分离培养在实验室诊断眼部单纯疱疹病毒(HSV)感染疾病的作用。方法:我们对连续患者的实验室结果(PCR实验,细胞分离培养及临床诊断)及病历进行回顾性研究在诊断眼部HSV感染疾病过程中,PCR检测结果、细胞分离培养及首诊结果进行了统计比较。结果:患者581例经过检查后,520例PCR检查阴性,细胞培养阴性(89.6%);0例PCR检查阴性,细胞培养阳性(0%);27例PCR检查阳性,细胞培养阴性(4.6%);34例PCR检查阳性,细胞培养阳性(5.8%)。PCR检测阳性率高于细胞分离培养(McNemars,P=0.0001)。47例PCR检查为HSV初诊感染阳性患者中,19例患者中有14例为细胞培养阴性结果(74%),5例HSV患者因缺PCR检测结果将被误诊;28例患者中有25例患者细胞培养阳性(占89%),3例HSV患者因缺PCR检测结果将被漏诊。结论:PCR诊断眼部HSV感染优于细胞分离培养。细胞分离培养对于眼部HSV感染的非典型表现不易诊断。Regis P Kowalski Paul P Thompson Tara H Cronin 2010国际眼科杂志2010,10,11:2
8Early enteral nutrition with whey protein or casein in elderly patients with acute ischemic stroke: A double-blind randomized trial显示文摘José Eduardo de Aguilar-Nascimento Bruno Regis Prado Silveira Diana Borges Dock-Nascimento 2011Nutrition2011,,:2
9An Interferon-free Antiviral Regimen for HCV after Liver Transplantation显示文摘Paul Y. Kwo Parvez S. Mantry Eoin Coakley Helen S. Te Hugo E. Vargas Robert Brown Fredric Gordon Josh Levitsky Norah A. Terrault James R. Burton Wangang Xie Carolyn Setze Prajakta Badri Tami Pilot-Matias Regis A. Vilchez Xavier Forns 2014The New England Journal of Medicine2014,,25:2
10Gamma knife surgery for mesial temporal lobe epilepsy显示文摘 Bartolomei F Rey M 1999Epilepsia1999,40,11:1
11Dynamic workflow model for complex activity in intensive care unit 显示文摘Nathalle Bricon-Souf Jean-Made Renard Regis Beuscart 1999International Journal of Medical Informatics1999,53,:1
12Radiosurgery for drug-resistant epilepsies: state of the art, results and perspectives显示文摘Regis J Arkha Y Yomo S 2008Neurochirurgie2008,54,3:1
13Multiloop edgewise archwire in the treatment of a patient with an anterior open bite and a long face显示文摘Ribeiro GL Regis S Jr da Cunha Tde M 2010Am J Orthod Dentofacial Orthop2010,138,1:1
14A randomised trial on simplif ied and conventional methods for complete denture fabrication:Masticatory performance and ability显示文摘Cunha TR Della Vecchia MP Regis RR 2013J Entistry2013,41,2:1
15Vacancy posting, job separation and unemployment fluctuations显示文摘Regis Barnichon 2011Journal of Economic Dynamics and Control2011,,3:1
16Paraffin/porous-graphite matrix composite as a high and constant power thermal stor- age material显示文摘Xavier Py Regis O Sylvain M 2001Int J Heat Mass Transfer2001,44,:1
17Pineal region tumors: the role of stereotactic radissurgery显示文摘MABNERA L REGIS J CHINOTO 1996Stereotact Funct Neurosurg1996,66,1:1
18Primary lymphoma of bone : correlation of magnetic resonanceimaging features with cytokineproduc- tion by tumor ceils显示文摘David GH Takehiko G Regis JO 1995Cancer1995,75,:1
19Data-driven design and complexity control of time-frequency detectors显示文摘CEDRIC RICHARD REGIS LENGELLE 1999Signal Processing1999,77,:1
20Periprosthetic osteolysis: an immunologist?s update显示文摘R John Looney Edward M Schwarz Allen Boyd Regis J O?Keefe 2006Current Opinion in Rheumatology2006,,1:1
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