维普中文期刊产品整合服务
201篇 您的检索式:作者名="Frans D"
    题名 作者 年代 出处 被引量
1Relationship between Th17 immune response and cancer显示文摘Cancer is the second leading cause of death worldwide and epidemiological projections predict growing cancer mortality rates in the next decades.Cancer has a close relationship with the immune system and,although Th17 cells are known to play roles in the immune response against microorganisms and in autoimmunity,studies have emphasized their roles in cancer pathogenesis.The Th17 immune response profile is involved in several types of cancer including urogenital,respiratory,gastrointestinal,and skin cancers.This type of immune response exerts pro and antitumor functions through several mechanisms,depending on the context of each tumor,including the protumor angiogenesis and exhaustion of T cells and the antitumor recruitment of T cells and neutrophils to the tumor microenvironment.Among other factors,the paradoxical behavior of Th17 cells in this setting has been attributed to its plasticity potential,which makes possible their conversion into other types of T cells such as Th17/Treg and Th17/Th1 cells.Interleukin(IL)-17 stands out among Th17-related cytokines since it modulates pathways and interacts with other cell profiles in the tumor microenvironment,which allow Th17 cells to prevail in tumors.Moreover,the IL-17 is able to mediate pro and antitumor processes that influence the development and progression of various cancers,being associated with variable clinical outcomes.The understanding of the relationship between the Th17 immune response and cancer as well as the singularities of carcinogenic processes in each type of tumor is crucial for the identification of new therapeutic targets.Hanna Santos Marques Breno Bittencourt de Brito Filipe Antônio França da Silva Maria Luísa Cordeiro Santos Júlio César Braga de Souza Thiago Macêdo Lopes Correia Luana Weber Lopes Nayara Silva de Macêdo Neres Rafael Santos Dantas Miranda Dórea Anna Carolina Saúde Dantas Lorena Lôbo Brito Morbeck Iasmin Souza Lima Amanda Alves de Almeida Maiara Raulina de Jesus Dias Fabrício Freire de Melo 2021World Journal of Clinical Oncology2021,12,10:5
2Structural, compositional and mineralogical characterization of carbonatitic copper sulfide: Run of mine, concentrate and tailings显示文摘The aim of this study was to determine the structural, compositional, and mineralogical composition of carbonatitic copper sulfide concentrator plant streams. Three samples, each from a different stream(run of mine(ROM), concentrate, and tailings) of a copper concentrator were characterized using various techniques, including stereomicroscopy, X-ray fluorescence, X-ray diffraction, Fourier transform infrared(FTIR) spectroscopy, scanning electron microscopy(SEM) in conjunction with energy-dispersive X-ray spectroscopy(EDS), and optical microscopy. The results reveal that each stream possesses its own unique compositional features. Carbonate minerals associated with calcite and dolomite, followed by quartz, remain the major minerals in both the ROM and tails streams. In the ROM stream, chalcopyrite appears to occur as veins within the carbonatite-hosting ore body. Mineral phase mutation was discovered in the tails stream because magnetite formerly identified in the ROM as the primary iron oxide had evolved into hematite. This metamorphosis was likely promoted by the concentration process. The concentration process was effective, upgrading the chalcopyrite content from 2 wt% in the ROM stream to 58 wt% in the concentrate stream; it was accompanied by bornite(4 wt%), anilite(3 wt%), and digenite(2.5 wt%). In addition, the concentrate stream exhibited properties distinctive from those of the other streams. The FTIR analysis showed the existence of a sulfide group related to the chalcopyrite mineral. Free chalcopyrite grains were observed in the concentrate by SEM analysis, and their mineral presence was supported by the EDS analysis results. All characterization techniques corresponded well with each other regarding the structure, chemistry, and composition of the samples.Kolela J Nyembwe Elvis Fosso-Kankeu Frans Waanders Kasongo D Nyembwe 2019International Journal of Minerals,Metallurgy and Materials2019,26,2:3
3Optimization of Mo/Cu(In,Ga)Se2/CdS/ZnO Hetero-Junction Solar Cell Performance by Numerical Simulation with SCAPS-1D显示文摘The paper presents a one-dimensional simulation study of chalcopyrite Cu(In,Ga)Se2(CIGS)solar cells,where the effects of the variation of CIGS,CdS,and ZnO layers are presented.Additionlly the influence of the variation of doping and the defects density of shallow uniform donors and acceptors types are also presented.The analyse of the simulation results shows that recombination inside the space charge region(SCR)decrease more our CIGS solar cell model performance.We also found that the electrical parameters increase with increasing CIGS absorber doping density exception of JSC values that reach their maximum at 1016cm-3 and decrease due to recombination of charge carriers in the p-n junction particularly the recombination inside the SCR.We also stressed the fact that the effects of shallow uniforme donor density is very low on the performance of our CIGS solar cell model is important because it will allow to control the width of space charge region from shallow uniform acceptors defect density that has a strong influence on the different electrical parameters.Yet,good optimization of performance of the CIGS-based solar cell necessarily passes though a good control of the space charge region width and will constitute a boosting perspective for the preparation of our next paper.We contact that the results obtained of the numerical simulation with SCAPS-1D show a good agreement comparatively of the literature results.The simulation of our CIGS solar cell presents best performances if the values of the absorber layer thickness is in the range of 0.02 to 0.03μm,the buffer layer thickness is in the range of 0.02 to 0.06μm and the defects density of shallow uniform acceptors types is in the range of 1015 to 1017cm-3.Adama Zongo Daouda Oubda Soumaïla Ouédraogo Marcel Bawindsom Kébré Alain Diasso Issiaka Sankara Boureima Traore François Zougmoré Zacharie Koalga Frédéric Ouattara 2021材料科学与工程(中英文B版)2021,11,4:2
4Prise en charge chirurgicale de la pancréatite chronique显示文摘Jean-Marc Regimbeau Frédéric Dumont Thierry Yzet Denis Chatelain éric Bartoli Franck Brazier Olivier Bréhant Jean-Louis Dupas Fran?ois Mauvais Richard Delcenserie 2007Gastroenterologie Clinique et Biologique2007,,8:2
5Safety,immunogenicity,and protection provided by unadjuvanted and adjuvanted formulations of a recombinant plant-derived virus-like particle vaccine candidate for COVID-19 in nonhuman primates显示文摘Although antivirals are important tools to control severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)infection,effective vaccines are essential to control the current coronavirus disease 2019(COVID-19)pandemic.Plant-derived virus-like particle(VLP)vaccine candidates have previously demonstrated immunogenicity and efficacy against influenza.Here,we report the immunogenicity and protection induced in rhesus macaques by intramuscular injections of a VLP bearing a SARS-CoV-2 spike protein(CoVLP)vaccine candidate formulated with or without Adjuvant System 03(AS03)or cytidine-phospho-guanosine(CpG)1018.Although a single dose of the unadjuvanted CoVLP vaccine candidate stimulated humoral and cell-mediated immune responses,booster immunization(at 28 days after priming)and adjuvant administration significantly improved both responses,with higher immunogenicity and protection provided by the AS03-adjuvanted CoVLP.Fifteen micrograms of CoVLP adjuvanted with AS03 induced a polyfunctional interleukin-2(IL-2)-driven response and IL-4 expression in CD4 T cells.Animals were challenged by multiple routes(i.e.,intratracheal,intranasal,and ocular)with a total viral dose of 106 plaque-forming units of SARS-CoV-2.Lower viral replication in nasal swabs and bronchoalveolar lavage fluid(BALF)as well as fewer SARS-CoV-2-infected cells and immune cell infiltrates in the lungs concomitant with reduced levels of proinflammatory cytokines and chemotactic factors in the BALF were observed in animals immunized with the CoVLP adjuvanted with AS03.No clinical,pathologic,or virologic evidence of vaccineassociated enhanced disease was observed in vaccinated animals.The CoVLP adjuvanted with AS03 was therefore selected for vaccine development and clinical trials.Stéphane Pillet Prabhu SArunachalam Guadalupe Andreani Nadia Golden Jane Fontenot Pyone Pyone Aye Katharina Röltgen Gabrielle Lehmicke Philipe Gobeil Charlotte Dubé Sonia Trépanier Nathalie Charland Marc-AndréD’Aoust Kasi Russell-Lodrigue Christopher Monjure Robert V.Blair Scott D.Boyd Rudolf P.Bohm Jay Rappaport François Villinger Nathalie Landry Bali Pulendran Brian J.Ward 2022Cellular & Molecular Immunology2022,19,2:2
6Duodenal intraepithelial T lymphocytes in patients with functional dyspepsia显示文摘AIM: To quantify the intraepithelial lymphocytes (IELs) and to document the membrane expression of CD4, CD8, TCRγδ and adhesion and/or activation-associated molecules (CD103, CD28, CD44, CD69, HLA-DR, CD95/ Fas) in the duodenal mucosa of patients with functional dyspepsia (FD) in order to provide arguments for an immunological process in FD. METHODS: Twenty-six FD patients according to Rome Ⅱ criteria (20 were H pylori negative) were studied and compared to 12 healthy adults. IELs were isolated from five duodenal biopsy samples, then quantified by microscopy and flow cytometry while the membrane phenotypes were determined by cytofluorometry. RESULTS: Duodenal histological examination was normal. In H pylori negative patients, the number of IELs was not different from that in healthy controls. Median percentage expression of CD4, CD8, or TCRγδ and CD103, CD44, CD28, CD69 on CD3+ IELs, among the adhesion/activation associated molecules tested, was not different from that in healthy controls. In contrast, the median percentage expression of CD95/ Fas [22 (9-65) vs 45 (19-88), P = 0.03] and HLA- DR expressing CD3+ IELs [4 (0-30) vs 13 (4-42), P = 0.04] was significantly lower in the H pylori negative FD group than in healthy controls, respectively. The number of IELs was significantly greater in H pylori positive FD patients than in healthy controls [median ratiofor 100 enterocytes 27.5 (6.7-62.5) vs 10.8 (3-33.3), P = 0.02] due to a higher number of CD8+ CD3+ IELs. CONCLUSION: In H pylori negative FD patients, the phenotypic characterization of IELs suggests that we cannot exclude a role of IELs in FD.Gilles Gargala Stéphane Lecleire Arnaud Franois Serge Jacquot Pierre Déchelotte Jean Jacques Ballet Loic Favennec Philippe Ducrotté 2007World Journal of Gastroenterology2007,13,16:2
7The role of bacterial vaginosis in preterm labor and preterm birth: A case-control study 显示文摘Damien S I Val rie D Fran oise L G 2002Euro J Obstet Gynecol Reprod Biol2002,101,1:1
8Biocontrol of sheath blight by Trichoderma asperellum in tropical lowland rice 显示文摘de Fran~a S K S Cardoso A F Lustosa D C 2015Agronomy for Sustainable Development2015,35,1:1
9Aqueous solutions of acrylamide-acrylic acid copolymers: stability in the presence of alkalinnearth cations 显示文摘FRAN(OIS J TRUONG N D MEDJAHDI G 1997Polymer1997,38,:1
10Immunoglobulin coating of faecal bacteria in inflammatory bowel disease显示文摘Laurens A van der Waaij Frans GM Kroese Annie Visser Gerardus F Nelis Bram D Westerveld Peter LM Jansen John O Hunter 2004European Journal of Gastroenterology & Hepatology2004,,7:1
11Establishment and eharacterisation nf a new tumorigenic cell line with a normal karyotype derived from a human breasl adenocarcinoma显示文摘Gioanni J Ire Fran~ ois D Zanghellini E 1990Br J Cancer1990,62,1:1
12Accuracy accessment of sattelite derived land-cover data:a review显示文摘LUCAS I F FRANS J M WEI V D 1994Potogramatic Engineering & Remote Sensing1994,60,4:1
13Study of the microbial ecology of cold-smoked salmon during storage at 8°C显示文摘Fran?oise Leroi Jean-Jacques Joffraud Frédérique Chevalier Mireille Cardinal 1998International Journal of Food Microbiology1998,,1:1
14Stochastic security for operations planning with significant wind power generation显示文摘Fran(c)ois Bouffard Galiana F D 2008IEEE Trans on Power Systems2008,23,2:1
15Managing or- ganizational knowledge integration in the emerging muhi- media complex 显示文摘Boer M D Frans A J Bosch V D 1999Journal of Management Studies1999,36,3:1
16Accuracy assessment of satellite derived land-cover data:a review显示文摘LUCAS I F FRANS J M WEL V D 1994Photogrammetric Engineering & Remote Sensing1994,60,4:1
17Cetuximab Shows Activity in Colorectal Cancer Patients With Tumors for Which FISH Analysis Does Not Detect an Increase in EGFR Gene Copy Number显示文摘Antoine Italiano MD Philippe Follana MD Fran?ois-Xavier Caroli MD Jean-Luc Badetti MD Daniel Benchimol MD Georges Garnier MD Jean Gugenheim MD Juliette Haudebourg MD Frédérique Keslair MS Gérard Lesbats MD Gérard Lledo MD Jean-Francois Roussel MD Florence 2008Annals of Surgical Oncology2008,,2:1
18Reproducibility of blood tests of liver fibrosis in clinical practice显示文摘Paul Calès Pascal Veillon Anselme Konaté Elisabeth Mathieu Catherine Ternisien Alain Chevailler Alban Godon Yves Gallois Fran?oise Joubaud Isabelle Hubert-Fouchard Frédéric Oberti Stéphane Réaud Gilles Hunault Fran?oise Mauriat Fran?oise Lunel-Fabiani 2007Clinical Biochemistry2007,,1:1
19Managing organizational knowledge integration in the emerging multimedia complex 显示文摘BOER M D FRANS A J BOSCH V D VOLBERDA H W 1999Journal of Management Studies1999,36,3:1
20Managing Organizational Knowledge Integration in the Emerging Multimedia Complex显示文摘Boer D M Frans A J Van D B 1999Journal of Management Studies1999,36,3:1
返回顶部 每页显示:
共11页 首页 上一页 第1页 下一页 末页 /11 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