维普中文期刊产品整合服务
273篇 您的检索式:作者名="Marcelle M"
    题名 作者 年代 出处 被引量
1Deep-learning based denoising and reconstruction of super-resolution structured illumination microscopy images显示文摘Super-resolution structured illumination microscopy(SR-SIM) provides an up to twofold enhanced spatial resolution of fluorescently labeled samples. The reconstruction of high-quality SR-SIM images critically depends on patterned illumination with high modulation contrast. Noisy raw image data(e.g., as a result of low excitation power or low exposure time), result in reconstruction artifacts. Here, we demonstrate deep-learning based SR-SIM image denoising that results in high-quality reconstructed images. A residual encoding–decoding convolutional neural network(RED-Net) was used to successfully denoise computationally reconstructed noisy SR-SIM images.We also demonstrate the end-to-end deep-learning based denoising and reconstruction of raw SIM images into high-resolution SR-SIM images. Both image reconstruction methods prove to be very robust against image reconstruction artifacts and generalize very well across various noise levels. The combination of computational image reconstruction and subsequent denoising via RED-Net shows very robust performance during inference after training even if the microscope settings change.ZAFRAN HUSSAIN SHAH MARCEL MÜLLER TUNG-CHENG WANG PHILIP MAURICE SCHEIDIG AXEL SCHNEIDER MARK SCHÜTTPELZ THOMAS HUSER WOLFRAM SCHENCK 2021Photonics Research2021,9,5:11
2Trans-arterial chemoperfusion for the treatment of liver metastases of breast cancer and colorectal cancer: Clinical results in palliative care patients显示文摘AIM To evaluate the clinical value and efficiency of transarterial chemoperfusion(TACP) in patients with liver metastases from breast cancer(BC) and colorectal cancer(CRC).METHODS We treated 36 patients with liver metastases of BC(n = 19, 19 females) and CRC(n = 17; 8 females, 9 males) with repeated TACP. The treatment interval was 4 wk. TACP was performed with gemcitabine(1000 mg/m2) and mitomycin(10 mg/m2), administered within 1 h after positioning the catheter tip in the hepatic artery. Before treatment, the size, location, tumour volume, vascularization and number of liver tumours were evaluated using magnetic resonance imaging(MRI). Tumour response was evaluated according to the Response Evaluation Criteria in Solid Tumors guidelines.RESULTS TACP using gemcitabine and mitomycin for metastases from CRC and BC was performed without any serious side effects. The follow-up MRI showed a therapeutic response in 84.2% of the BC patients-stable disease 47.4% and partial response 36.8%. A progression was seen in 15.8%.CRC patients showed a therapeutic response in 52.9% of cases. A progression of the disease was documented in 47.1% of the patients with CRC. These data show that TACP in patients with liver metastases of BC leads to a significantly better therapeutic response compared with CRC patients(P = 0.042). The median survival time was 13.2 mo for the BC patients, which is significantly longer than for CRC patients at 9.3 mo(P = 0.001).CONCLUSION TACP for liver metastases of BC appears to be a safe and effective palliative treatment with improved outcomes in comparison to patients with CRC.Tatjana Gruber-Rouh Marcel Langenbach Nagy NN Naguib Nour-Eldin M Nour-Eldin Thomas J Vogl Stephan Zangos Martin Beeres 2017World Journal of Clinical Oncology2017,8,4:7
3Claudin-11 and occludin are major contributors to Sertoli cell tight junction function, in vitro显示文摘Sertoli 房间紧密的连接(TJ ) 是血睾丸障碍的关键部件,在它扣押开发在生精的小管以内经历精子发生的细菌房间的地方。神经质地调整的 claudin-11 是在不孕涉及障碍功能和它的鼠科的猛烈结果的批评 transmembrane 蛋白质。我们试图估计份量上到 TJ 功能的 claudin-11 的贡献的意义在 vitro,使用调停 siRNA 的基因 silencing。我们也进行了 occludin 的贡献的分析, TJ 的另一内在的 transmembrane 蛋白质。claudin-11 或 occludin 的 Silencing 在一个不成熟的老鼠 Sertoli 房间文化模型用 siRNA 被进行。Transepithelial 电的抵抗被用来在整个文化估计份量上 TJ 功能。在 siRNA 处理以后的二天,房间为对 mRNA 的 RT-PCR 评价为连接蛋白质或 lyzed 的 immunocytochemical 本地化被修理表示。claudin-11, occludin,或两个的 Silencing 在 55% 的 TJ 功能导致了重要减少(P <0.01 ) , 51%(P <0.01 ) ,并且 62%(P <0.01 ) 分别地。数据在到 Sertoli 房间 TJ 的指向的蛋白质的本地化是有在 mRNA 表示和显著减小的重要减少的伴随物。我们提供 claudin-11 显著地贡献的量的证据(P <0.01 ) 到 Sertoli 房间 TJ 在 vitro 工作。有趣地, occludin,神经质地在不孕被调整然而并非含有直到迟了的成人生活,也是一重要(P <0.01 ) 贡献者到障碍功能。我们的数据与一致在清楚地为这些表明一个角色的 vivo 研究,在维持正常 TJ 障碍的蛋白质组织并且工作。Mark J McCabe Caroline FH Foo Marcel E Dinger Peter M Smooker Peter G Stanton 2016Asian Journal of Andrology2016,18,4:7
4Transcranial direct current stimulation in psychiatric disorders显示文摘The interest in non-invasive brain stimulation techniques is increasing in recent years. Among these techniques, transcranial direct current stimulation(t DCS) has been the subject of great interest among researchers because of its easiness to use, low cost, benign profile of side effects and encouraging results of research in the field. This interest has generated several studies and randomized clinical trials, particularly in psychiatry. In this review, we provide a summary of the development of the technique and its mechanism of action as well as a review of the methodological aspects of randomized clinical trials in psychiatry, including studies in affective disorders, schizophrenia, obsessive compulsive disorder, child psychiatry and substance use disorder. Finally,we provide an overview of t DCS use in cognitive enhancement as well as a discussion regarding its clinical use and regulatory and ethical issues. Although many promising results regarding t DCS efficacy were described, the total number of studies is still low, highlighting the need of further studies aiming to replicate these findings in larger samples as to provide a definite picture regarding t DCS efficacy in psychiatry.Gabriel Tortella Roberta Casati Luana V M Aparicio Antonio Mantovani Natasha Senco Giordano D’Urso Jerome Brunelin Fabiana Guarienti Priscila Mara Lorencini Selingardi Débora Muszkat Bernardo de Sampaio Pereira Junior Leandro Valiengo Adriano H Moffa Marcel Simis Lucas Borrione André R Brunoni 2015World Journal of Psychiatry2015,5,1:6
5Impact of body composition on survival and morbidity after liver resection in hepatocellular carcinoma patients显示文摘Background: Hepatocellular carcinoma is the most common innate liver tumor. Due to improved surgical techniques, even extended resections are feasible, and more patients can be treated with curative intent. As the liver is the central metabolic organ, preoperative metabolic assessment is crucial for risk stratification. Sarcopenia, obesity and sarcopenic obesity characterize body composition and metabolic status. Here we present the impact of body composition on survival after liver resection in patients with hepatocellular carcinoma. Methods: A retrospective database analysis of 70 patients who were assigned for liver resection due to hepatocellular carcinoma was conducted. For assessment of sarcopenia and obesity, skeletal muscle surface area was measured at lumbar vertebra 3 level(L3) in preoperative four-phase contrast enhanced abdominal CT scans, and L3 muscle index and body fat percentage were calculated. Results: Univariate analysis comparing the survival curves using the score test demonstrated superior postoperative overall survival for sarcopenic( P = 0.035) and sarcopenic obese( P = 0.048) patients as well as a trend favoring obese( P = 0.130) subjects. Whereas multivariate analysis could not identify significant difference in postoperative survival regarding sarcopenia, obesity or sarcopenic obesity. Only large tumor size, multifocal disease and male gender were risk factors for long-term survival. Conclusions: Sarcopenia, obesity and sarcopenic obesity are indeed no risk factors for poor postoperative survival in this study. Our data do not support the evaluation of sarcopenia, obesity and sarcopenic obesity before liver resection in hepatocellular carcinoma patients.Andreas Kroh Diane Uschner Toine Lodewick Roman M Eickhoff Wenzel Sch?ning Florian T Ulmer Ulf P Neumann Marcel Binneb?sel 2019Hepatobiliary & Pancreatic Diseases International2019,18,1:5
6Pentoxifylline 通过 TNF- 合成和 TGF-1 基因表示的下面规定改进肝新生显示文摘 AIM:To investigate the mechanism of pentoxifylline(PTX)improvement in liver regeneration.RESULTS:Rats were randomized into 4 groups:Control rats;Sham-sham-operation rats;Saline-70% hepatectomy plus saline solution;PTX-70%hepatectomy plus PTX.At 2 and 6 h after hepatectomy,aspartate aminotransferase,alanine aminotransferase,tumor necrosis factor(TNF)-α and interleukin-6(IL-6)serum and hepatic tissue levels were determined.Tumor growth factor(TGF)-β1 gene expression in liver tissue was evaluated 24 h after hepatectomy by quantitative reverse transcriptase polymerase chain reaction analysis.Proliferation was analyzed by mitotic index and proliferating cell nuclear antigen(PCNA)staining 48 h after hepatectomy.RESULTS:TNF-α and IL-6 serum levels increased at 2 and 6 h after hepatectomy.At 2 h after hepatectomy serum PTX was reduced but not hepatic levels of TNF-α and IL-6.A decrease in liver TGF-β1 gene expression and an increase in mitotic index and PCNA after hepatectomy were observed in the PTX treatment group in comparison to the saline group.CONCLUSION:PTX improves liver regeneration by a mechanism related to down regulation of TNF-α production and TGF-β1 gene expression.Rodrigo Bronze Martino Ana Maria Mendona Coelho Márcia Saldanha Kubrusly Regina Leito Sandra Nassa Sampietre Marcel Cerqueira Cesar Machado Telesforo Bacchella Luiz Augusto Carneiro D’Albuquerque 2012World Journal of Gastrointestinal Surgery2012,4,6:2
7Effectiveness of Helicobacter pylori eradication in the treatment of early-stage gastric mucosa-associated lymphoid tissue lymphoma:An up-to-date meta-analysis显示文摘BACKGROUND Gastric mucosa-associated lymphoid tissue(MALT)lymphoma(GML)is usually a low-grade B-cell neoplasia strongly associated with Helicobacter pylori(H.pylori)-induced chronic gastritis.Clinical practice guidelines currently recommend H.pylori eradication as the preferred initial treatment for early-stage GML.To determine the practical effect of bacterial eradication as the sole initial therapy for early-stage GML,an updated analysis and review of available evidence is imperative.AIM To perform a meta-analysis to assess the rate of complete remission(CR)of H.pylori-positive early-stage GML following bacterial eradication.METHODS We performed independent,computer-assisted literature searches using the PubMed/MEDLINE,Embase,and Cochrane Central databases through September 2022.Prospective and retrospective observational studies evaluating the CR of early-stage GML following bacterial eradication in H.pylori-positive patients.The risk of bias was assessed using Joanna Briggs Institute(JBI)Critical Appraisal Tools.The pooled estimate of the complete histopathological remission rate and respective confidence intervals(95%CI)were calculated following the random-effects model.Heterogeneity and inconsistency were assessed using Cochran’s Q test and I2 statistic,and heterogeneity was defined as P<0.01 and I²>50%,respectively.Subgroup and meta-regression analyses were conducted to explore potential sources of heterogeneity.RESULTS The titles and abstracts of 1576 studies were screened;96 articles were retrieved and selected for full-text reading.Finally,61 studies were included in the proportional meta-analysis(P-MA).Forty-six were prospective and fifteen were retrospective uncontrolled,single-arm,observational studies.The overall risk of bias was low to moderate in all but a single report,with an average critical appraisal score across all studies of 79.02%.A total of 2936 H.pylori-positive early-stage GML patients,in whom H.pylori was successfully eradicated,were included in the analysis.The pooled CR of H.pylori-positive early-stage GML after bacterial eradication was 75.18%(95%CI:70.45%-79.91%).P-MA indicated the substantial heterogeneity in CR reported across studies(I2=92%;P<0.01).Meta-regression analysis identified statistically significant effect modifiers,including the proportion of patients with t(11;18)(q21;q21)-positive GML and the risk of bias in each study.CONCLUSION Comprehensive synthesis of available evidence suggests that H.pylori eradication is effective as the sole initial therapy for early-stage GML.Although the substantial heterogeneity observed across studies limits the interpretation of the pooled overall CR,the present study is a relevant to informing clinical practice.Fabian Fellipe Bueno Lemos Caroline Tianeze de Castro Mariana Santos Calmon Marcel Silva Luz Samuel Luca Rocha Pinheiro Clara Faria Souza Mendes dos Santos Gabriel Lima Correa Santos Hanna Santos Marques Henrique Affonso Delgado Kádima Nayara Teixeira Cláudio Lima Souza Márcio Vasconcelos Oliveira Fabrício Freire de Melo 2023World Journal of Gastroenterology2023,29,14:2
8Role of nickel-regulated small RNA in modulation of Helicobacter pylori virulence factors显示文摘Helicobacter pylori(H.pylori)is a Gram-negative bacterium that infects about half of the world's population.H.pylori infection prevails by several mechanisms of adaptation of the bacteria and by its virulence factors including the cytotoxin associated antigen A(CagA).CagA is an oncoprotein that is the protagonist of gastric carcinogenesis associated with prolonged H.pylori infection.In this sense,small regulatory RNAs(sRNAs)are important macromolecules capable of inhibiting and activating gene expression.This function allows sRNAs to act in adjusting to unstable environmental conditions and in responding to cellular stresses in bacterial infections.Recent discoveries have shown that nickelregulated small RNA(NikS)is a post-transcriptional regulator of virulence properties of H.pylori,including the oncoprotein CagA.Notably,high concentrations of nickel cause the reduction of NikS expression and consequently this increases the levels of CagA.In addition,NikS expression appears to be lower in clinical isolates from patients with gastric cancer when compared to patients without.With that in mind,this minireview approaches,in an accessible way,the most important and current aspects about the role of NikS in the control of virulence factors of H.pylori and the potential clinical repercussions of this modulation.Fabrício Freire de Melo Hanna Santos Marques Fabian Fellipe Bueno Lemos Marcel Silva Luz Samuel Luca Rocha Pinheiro Lorena Sousa de Carvalho Cláudio Lima Souza Márcio Vasconcelos Oliveira 2022World Journal of Clinical Cases2022,10,31:2
9l -Carnitine: An adequate supplement for a multi-targeted anti-wasting therapy in cancer显示文摘Sílvia Busquets Roberto Serpe Míriam Toledo Angélica Betancourt Enrica Marmonti Marcel Orpí Fabrizio Pin Eva Capdevila Clelia Madeddu Francisco J. López-Soriano Giovanni Mantovani Antonio Macciò Josep M. Argilés 2012Clinical Nutrition2012,,6:2
10Fractional Flow Reserve Versus Angiography for Guiding Percutaneous Coronary Intervention in Patients With Multivessel Coronary Artery Disease显示文摘Nico H.J. Pijls William F. Fearon Pim A.L. Tonino Uwe Siebert Fumiaki Ikeno Bernhard Bornschein Marcel van't Veer Volker Klauss Ganesh Manoharan Thomas Engstr?m Keith G. Oldroyd Peter N. Ver Lee Philip A. MacCarthy Bernard De Bruyne 2010Journal of the American College of Cardiology2010,,3:2
11Biotransformation of S-Triaxine herbicides and related degradation products in liquid cultures by the white rot fungus Phanerochaete chrysosporium显示文摘CHRISTIAN M CHANTAL L MARCEL A T 1997Pestie Sci1997,49,:1
12A 10-b 50-MHz CMOS D/A converter with 75-Ω buffer显示文摘Marcel J Pelgrom M 1990IEEE J Sol Sta Circ1990,25,12:1
13Coordinate actions of BMPs,Wnts,Shh and noggin mediate patterning of the dorsal somite显示文摘MARCELLE C STARK M R BRONNER-FRASER M 1997Development1997,124,:1
14Lipases in the Preparation of β-blockers 显示文摘 Vincent H M E van Lersel J 1988TIBTECH1988,6,:1
15Sedative and anticonvulsant activities of methanol extract of Dorstenia arifolia in mice 显示文摘GISELE Z S THAIANA C F M MARCELLE A K 2010Journal of Ethnopharmacology2010,130,:1
16A10bit50MHz CMOS D/A converter with75Ωbuffer显示文摘Marcel J M Pelgrom 1990IEEE Journal of Solid-state Circuits1990,25,6:1
17Polymers containing quaternary ammonium groups based on poly ( N- vinylimidazole) 显示文摘CORNELIA L SILVIA M MARCEL P 2002European Polymer Journal2002,38,8:1
18Understanding wild-type and mutant p53 activities in human cancer:new landmarks on the way to targeted therapies显示文摘Goldstein I Marcel V Olivier M 2011Cancer Gene Ther2011,18,1:1
19p27kip1–838C>A Single Nucleotide Polymorphism Is Associated With Restenosis Risk After Coronary Stenting and Modulates p27kip1 Promoter Activity显示文摘Claudia M. van Tiel Peter I. Bonta Saskia Z.H. Rittersma Marcel A.M. Beijk Edward J. Bradley Anita M. Klous Karel T. Koch Frank Baas J Wouter Jukema Douwe Pons M Lourdes Sampietro Hans Pannekoek Robbert J. de Winter Carlie J.M. de Vries 2009Circulation2009,,:1
20Paul alivisatos semiconductor nanocrystals as fluorescent biological labels显示文摘Marcel Bruchez Jr Mario M Peter G Shimon W 1998Science1998,281,:1
返回顶部 每页显示:
共14页 首页 上一页 第1页 下一页 末页 /14 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