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844篇 您的检索式:作者名="Stephane M"
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1两种新型骨水泥的组织学和生物力学研究显示文摘我们研制了两种可被骨长入的骨水泥:一种是部分可吸收的骨水泥(PRC),以双酚α-甲基丙烯酸甘油酯(Bis-GMA)为基质,混合硅铝陶瓷和可吸收性聚合体颗粒调制成;另一种是磷酸钙骨水泥(CPC),由磷酸三钙、一水磷酸二氢钙、二水磷酸二钙和黄原胶组成。将这两种骨水泥分别植入家兔股骨和胫骨髁的骨缺损中,植入后2、4、12和24周取材,进行组织学观察和生物力学测试。结果发现,CPC组有递增的骨整合,伴有生物降解及巨噬细胞出现,力学测试显示抗压强度在4周之前一直降低,4周后才轻微升高,弹性模量随时间普遍降低。到第4周时,组织学观察还发现新生骨与CPC边缘直接接触。整个观察过程中未发现炎症反应。PRC组,骨整合及生物降解都很轻微,但在各个观察阶段,其抗压强度比松质骨和CPC组高(p<0.05),在4周之前,它的弹性模量高于松质骨和CPC组,4周后低于松质骨。(Bone 25:41S--45S;1999)。卢建熙 I ABOUT G STEPHAN P VAN LANDUYT J DEJOU M FIOCCHI J LEMAITRE J-P PROUST 2000医用生物力学2000,15,3:10
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
3Dynamic magnetic resonance defecography in 10 asymptomatic volunteers显示文摘AIM: Evaluation of the wide range of normal findings in asymptomatic women undergoing dynamic magnetic resonance (MR) defecography. METHODS: MR defecography of 10 healthy female volunteers (median age: 31 years) without previous pregnancies or history of surgery were evaluated. The rectum was filled with 180 mL gadolinium ultrasound gel mixture. MR defecography was performed in the supine position. The pelvic floor was visualized with a dynamic T2-weighted sagittal plane where all relevant pelvic floor organs were acquired during defecation. The volunteers were instructed to relax and then to perform straining maneuvers to empty the rectum. The pubococcygeal line (PCGL) was used as the line of reference. The movement of pelvic floor organs was measured as the vertical distance to this reference line. Data were recorded in the resting position as well as during the defecation process with maximal straining. Examinations were performed and evaluated by two experienced abdominal radiologists without knowledge of patient history. RESULTS: Average position of the anorectal junction was located at -5.3 mm at rest and -29.9 mm during straining. The anorectal angle widened significantly from 93° at rest to 109° during defecation. A rectocele was diagnosed in eight out of 10 volunteers showing an average diameter of 25.9 mm. The bladder base was located at a position of +23 mm at rest and descended to -8.1 mm during defecation in relation to the PCGL. The bladder base moved below the PCGL in six out of 10 volunteers, which was formally defined as a cystocele. The uterocervical junction was located at an average level of +43.1 mm at rest and at +7.9 mm during straining. The uterocervical junction of three volunteers fell below the PCGL; described formally as uterocervical prolapse. CONCLUSION: Based on the range of standard values in asymptomatic volunteers, MR defecography values for pathological changes have to be re-evaluated.Andreas G Schreyer Christian Paetzel Alois Fürst Lena M Dendl Elisabeth Hutzel René Müller-Wille Philipp Wiggermann Stephan Schleder Christian Stroszczynski Patrick Hoffstetter 2012World Journal of Gastroenterology2012,18,46:7
4Immunosuppression for in vivo research: state-of-the-at protocols and experimental approaches显示文摘几乎,用非自体同源的房间,织物或机关移植的每试验性的治疗策略在临床的翻译前在小、大的动物模型被测试。因为这些策略在大多数情况中要求免疫力的抑制,抑制免疫力的协议是在移植实验的一个关键元素。然而,没有详细知识,标准抑制免疫力的协议经常在特别试验性的背景以内并且在选择模型种类关于他们的功效被使用。如此的协议的优化对到人的病人的试验性的结果的翻译恰当,因此,保证推进调查。这评论与种类特定的药 metabolization 和副作用的考虑关于抑制免疫力的药类以及他们的剂量和应用程序政体总结当前的知识。它也总结新奇 immunomodulatory 策略的当代的知识,例如间充质的干细胞或抗体的使用。因此,这评论被打算用作一个最先进的概要让研究人员精制应用试验性的免疫力的抑制和 immunomodulation 策略提高现出症状之前的潜的移植研究的预兆的价值。Rita Diehl Fabienne Ferrara Claudia Müller Antje Y Dreyer Damian D McLeod Stephan Fricke Johannes Boltze 2017Cellular & Molecular Immunology2017,14,2:5
5Late biliary complications in human alveolar echinococcosis are associated with high mortality显示文摘AIM:To evaluate the incidence of late biliary complications in non-resectable alveolar echinococcosis(AE)under long-term chemotherapy with benzimidazoles.METHODS:Retrospective analysis of AE patients with biliary complications occurring more than three years after the diagnosis of AE.We compared characteristics of patients with and without biliary complications,analyzed potential risk factor for biliary complications and performed survival analyses.RESULTS:Ninety four of 148 patients with AE in Zurich had non-resectable AE requiring long-term benzimidazole chemotherapy,of which 26(28%)patients developed late biliary complications.These patients had a median age of 55.5(35.5-65)years at diagnosis of AE and developed biliary complications after 15(8.25-19)years of chemotherapy.The most common biliary complications during long-term chemotherapy were late-onset cholangitis(n=14),sclerosing cholangitis-like lesions(n=8),hepatolithiasis(n=5),affection of the common bile duct(n=7)and secondary biliary cirrhosis(n=7).Thirteen of the 26 patients had undergone surgery(including 12 resections)before chemotherapy.Previous surgery was a risk factor for late biliary complications in linear regression analysis(P=0.012).CONCLUSION:Late biliary complications can be observed in nearly one third of patients with non-resectable AE,with previous surgery being a potential risk factor.After the occurrence of late biliary complications,the median survival is only 3 years,suggesting that late biliary complications indicate a poor prognostic outcome.Pascal Frei Benjamin Misselwitz Meher K Prakash Alain M Schoepfer Bettina M Prinz Vavricka Beat Müllhaupt Michael Fried Kuno Lehmann Rudolf W Ammann Stephan R Vavricka 2014World Journal of Gastroenterology2014,20,19:5
6Open label trial of granulocyte apheresis suggests therapeutic efficacy in chronically active steroid refractory ulcerative colitis显示文摘AIM:To study the efficacy, safety, and feasibility of a granulocyte adsorptive type apheresis system for the treatment of patients with chronically active ulcerative colitis despite standard therapy.METHODS: An open label multicenter study was carried out in 39 patients with active ulcerative colitis (CAI6-8) despite continuous use of steroids (a minimum total dose of 400 mg prednisone within the last 4 wk).Patients received a total of five aphereses using a granulocyte adsorptive technique (Adacolumn(R), Otsuka Pharmaceutical Europe, UK). Assessments at wk 6 and during follow-up until 4 mo comprised clinical (CAI) and endoscopic (EI) activity index, histology, quality of life(IBDQ), and laboratory tests.RESULTS: Thirty-five out of thirty-nine patients were qualified for intent-to-treat analysis. After the apheresis treatment at wk 6, 13/35 (37.1%) patients achieved clinical remission and 10/35 (28.6%) patients had endoscopic remission (CAI<4, EI<4). Quality of life (IBDQ) increased significantly (24 points, P<0.01)at wk 6. Apheresis could be performed in all but one patient. Aphereses were well tolerated, only one patient experienced anemia.CONCLUSION: In patients with steroid refractory ulcerative colitis, five aphereses with a granulocyte/monocyte depleting filter show potential short-term efficacy. Tolerability and technical feasibility of the procedure are excellent.Wolfgang Kruis Axel Dignass Elisabeth Steinhagen-Thiessen Julia Morgenstern Joachim M(o|¨)ssner Stephan Schreiber Maurizio Vecchi Alberto Malesci Max Reinshagen Robert L(o|¨)fberg 2005World Journal of Gastroenterology2005,11,44:4
7Future impact of integrated high-throughput methylome analyses on human health and disease显示文摘A spate of high-powered genome-wide association studies (GWAS) have recently identified numerous single-nucleotide polymor-phisms (SNPs) robustly linked with complex disease. Despite interrogating the majority of common human variation, these SNPs only account for a small proportion of the phenotypic variance, which suggests genetic factors are acting in concert with non-genetic factors. Although environmental measures are logical covariants for genotype-phenotype investigations, another non-genetic intermediary exists: epigenetics. Epigenetics is the analysis of somatically-acquired and, in some cases, transgenerationally inherited epigenetic modifications that regulate gene expression, and offers to bridge the gap between genetics and environment to understand phenotype. The most widely studied epigenetic mark is DNA methylation. Aberrant methylation at gene promoters is strongly implicated in disease etiology, most notably cancer. This review will highlight the importance of DNA methylation as an epigenetic regulator, outline techniques to character-ize the DNA methylome and present the idea of reverse phenotyping, where multiple layers of analysis are integrated at the individual level to create personalized digital phenotypes and, at a phenotype level, to identify novel molecular signatures of disease.Lee M Butcher Stephan Beck 2008Journal of Genetics and Genomics2008,35,7:3
8Inflammatory bowel disease in an underdeveloped region of Northeastern Brazil显示文摘AIM: To evaluate the demographic characteristics and clinical phenotypes of inflammatory bowel disease(IBD) in a geographic area in Northeastern Brazil.METHODS: This retrospective study was conducted at the Hospital of the Federal University of Piauí in Northeastern Brazil. Demographic characteristics and clinical phenotypes of IBD were analyzed in relation to the time of diagnostic confirmation, which was defined as the date of disease onset. Data were collected between January 2011 and December 2012 and included all census patients 18 years of age or older during that period for whom there was diagnostic confirmation of Crohn's disease(CD), ulcerative colitis(UC), or unclassified colitis according to the Montreal criteria. We also analyzed the period of time between the onset of clinical manifestations and the diagnosis of IBD(delay in the diagnosis). Statistical analyses included means and standard deviations for numeric variables and the Pearson χ2 adherence test for nominal variables. The annual index occurrence and overall prevalence of IBD at our institution were also calculated, with P values < 0.05 indicating statistical significance. This study was approved by the Institutional Ethics and Research Committee.RESULTS: A total of 252 patients with IBD were included, including 152(60.3%) UC patients and 100(39.7%) CD patients. The clinical and demographic characteristics of all patients with IBD showed a female to male ratio of 1.3:1.0 and a mean age of35.2(SD = 14.5) years. In addition, the majority of patients were miscegenated(171, 67.9%), had received higher education(157, 62.4%), lived in urban areas(217, 86.1%), and were under the age of 40 years(97, 62.5%). For patients with CD, according to the Montreal classification, the predominant features present from the onset of disease were an age between 17 and 40 years(A2); colonic disease location(L2); and nonstricturing, nonfistulizing disease behavior(B1). However, approximately one-quarter of all CD patients demonstrated perineal involvement. We also observed considerable delay in the diagnosis of IBD throughout the entire study period(mean = 35.5 mo). In addition, the annual index occurrence rose from 0.08 to 1.53 cases/105 inhabitants/year during the study period, and the prevalence rate was 12.8 cases/105 inhabitants in 2012. Over the last two decades, there was a noted increase in the frequency of IBD in the study area.CONCLUSION: In this study, there was a predominance of patients with UC, young people under 40 years of age, individuals with racial miscegenation, and low annual incomes.José Miguel Luz Parente Claudio Saddy Rodrigues Coy Viriato Campelo Mírian Perpétua Palha Dias Parente Leonardo Araújo Costa Renata Mendes da Silva Celso Stephan José Murilo Robilotta Zeitune 2015World Journal of Gastroenterology2015,21,4:3
9Abnormal High-Density Lipoprotein Induces Endothelial Dysfunction via Activation of Toll-Like Receptor-2显示文摘Thimoteus Speer Lucia Rohrer Przemyslaw Blyszczuk Rukshana Shroff Kira Kuschnerus Nicolle Kr?nkel Gabriela Kania Stephen Zewinger Alexander Akhmedov Yi Shi Tina Martin Damir Perisa Stephan Winnik Maja F. Müller Urban Sester Gabriel Wernicke Andreas Jung U 2013Immunity2013,,:2
10Is Ulnar Nerve Transposition Beneficial During Open Reduction Internal Fixation of Distal Humerus Fractures?显示文摘Ryan C Chen David J Harris Stephane Leduc Joseph J Borrelli Paul Tornetta William M Ricci 2010Journal of Orthopaedic Trauma2010,,7:2
11Aligned carbon nanotube arrays formed by cutting a polymer resin-nanotube composite显示文摘Ajayan P M Stephan O Colliex C 1994Science1994,265,16:2
12Crk adaptor protein-induced phosphorylation of Gab1 on tyrosine 307 via Src is important for organization of focal adhesions and enhanced cell migration显示文摘在生长因素刺激之上,支架蛋白质, Gab1,是酷氨酸 phosphorylated 并且随后适配器蛋白质, Crk,从 Gab1 播送信号。我们以前证明了没有细胞外的刺激, Crk overexpression,在各种各样的人的癌症可检测,导致 Gab1 的酷氨酸 phosphorylation。在现在的学习,内在的机制进一步被调查。CrkII 的 Mutational 分析证明 SH2 领域,然而并非 SH3 (N) 或 CrkII 的规章的 Y221 残余,为 Gab1-Y307 phosphorylation 的正式就职是批评的。CrkII 的 SH2 变化也减少了和 Gab1 的相互作用。在 GST 下拉试金,而 Crk-SH3 (N) 与 Gab1 异种交往了, Crk-SH2 跳了到野类型的 Gab1,它缺乏聚类的酷氨酸区域(残余 242-410 ) 。Gab1 的酷氨酸 phosphorylation 被表明适配器的所有 Crk 家庭蛋白质,然而并非另外的包含 SH2 导致。Src 家庭 kinase 禁止者, PP2,废除 Gab1 的导致 Crk 的酷氨酸 phosphorylations。Y307 phosphorylation 在缺乏 Src,是,和 Fyn 的成纤维细胞是无法发现的,甚至在 Crk 的 overexpression 之上,而缺乏仅仅是和 Fyn 的房间仍然与 phosphorylated Y307 包含了 Gab1。而且, Crk 导致了 Src-Y416 的 phosphorylation;因此,在 Crk 和 Csk 之间的相互作用被增加。Gab1-Y307F 异种没能近甚至在 HGF 之上本地化血浆膜刺激和减少的房间移植。而且, Gab1-Y307F 扰乱了 Crk, FAK,和 paxillin 的本地化,它是焦点的粘附的典型部件。一起拿,这些结果显示 Crk 通过 Src 便于 Gab1-Y307 的酷氨酸 phosphorylation,贡献焦点的粘附和提高的房间移植的组织,可能从而支持人的癌症开发。Takuya Watanabe Masumi Tsuda Yoshinori Makino Tassos Konstantinou Hiroshi Nishihara Tokifumi Majima Akio Minami Stephan M Feller Shinya Tanaka 2009Cell Research2009,19,5:2
132007 Guidelines for the Management of Arterial Hypertension: The Task Force for the Management of Arterial Hypertension of the European Society of Hypertension (ESH) and of the European Society of Cardiology (ESC)显示文摘Giuseppe Mancia Guy De Backer Anna Dominiczak Renata Cifkova Robert Fagard Giuseppe Germano Guido Grassi Anthony M Heagerty Sverre E Kjeldsen Stephane Laurent Krzysztof Narkiewicz Luis Ruilope Andrzej Rynkiewicz Roland E Schmieder Harry AJ Struijker Boudi 2007Journal of Hypertension2007,,6:2
142007 Guidelines for the Management of Arterial Hypertension: The Task Force for the Management of Arterial Hypertension of the European Society of Hypertension (ESH) and of the European Society of Cardiology (ESC)显示文摘Giuseppe Mancia Guy De Backer Anna Dominiczak Renata Cifkova Robert Fagard Giuseppe Germano Guido Grassi Anthony M Heagerty Sverre E Kjeldsen Stephane Laurent Krzysztof Narkiewicz Luis Ruilope Andrzej Rynkiewicz Roland E Schmieder Harry AJ Struijker Boudi 2007Journal of Hypertension2007,,6:2
15Quantification of veterinary antibiotics (sulfonamides and trimethoprim) in animal manure by liquid chromatography–mass spectrometry显示文摘Michel Y Haller Stephan R Müller Christa S McArdell Alfredo C Alder Marc J.-F Suter 2002Journal of Chromatography A2002,,1:2
16Aligned carbon nanotube arrays formed by cutting a polymer resin-nanotube composite显示文摘AJAYAN P M STEPHAN O COLLIEX C 1994Science1994,265,:1
17Aligned carbon nanotube arrays formed by cutting a polymer resin-nanotube composite显示文摘 STEPHAN O COLLIEX C 1994Science1994,265,:1
18Salinity-dependent switching of osmolyte strategies in a moderately Halophilic Bacterium: glutamate induces proline biosynthesis in Halobacillus halophilus显示文摘Stephan H S Volker M 2007Journal of Bacteriology2007,189,19:1
19A theory for muhiresolution signal dec- omposition:the wavelet representation显示文摘STEPHANE G M 1989IEEE transactions on Pattern Analysis and Machine Intelligence1989,,7:1
20显示文摘Ajayan P M Stephan D Redlich P H 1993Nature1993,361,:1
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