检索结果-南通市图书馆

Diagnostic delay in inflammatory bowel diseases in a German population

World Journal of Gastroenterology 2024年第29期30卷 3465-3478页

作者： Elisabeth blüthner Annalena Dehe Carsten Büning Britta Siegmund Matthias Prager Jochen Maul Alexander Krannich Jan Preiß Bertram Wiedenmann Florian Rieder Raneem Khedraki Frank Tacke Andreas Sturm Anja Schirbel Department of Hepatology and Gastroenterology Campus Virchow-Klinikum and Campus CharitéMitteCharité-Universitätsmedizin BerlinBerlin 10117Germany Department of Gastroenterology Vivantes Klinikum im FriedrichshainBerlin 10249Germany Department of Internal Medicine Krankenhaus WaldfriedeBerlin 14163Germany Department of Gastroenterology Infectious Diseases and RheumatologyCharité-Universitätsmedizin BerlinBerlin 12203Germany Praxis für Gastroenterologie Berlin Zehlendorf Berlin 14195Germany Gastroenterologie am Bayrischen Platz Berlin 10825Germany Clinical Trial Office Charité-Universitätsmedizin BerlinBerlin 10117Germany Department of Gastroenterology Diabetology and HepatologyVivantes Klinikum NeuköllnBerlin 10117Germany Department of Gastroenterology Hepatology and NutritionDigestive Diseases and Surgery InstituteThe Cleveland Clinic FoundationClevelandOH 44195United States Department of Internal Medicine DRK Kliniken Berlin WestendBerlin 14050Germany Gastroenterologie im Havelland Straße der EinheitFalkensee 14612Germany

BACKGROUND Early diagnosis is key to prevent bowel damage in inflammatory bowel disease(IBD).Risk factor analyses linked with delayed diagnosis in European IBD patients are scarce and no data in German IBD patients *** To identify risk factors leading to prolonged diagnostic time in a German IBD *** Between 2012 and 2022,430 IBD patients from four Berlin hospitals were enrolled in a prospective study and asked to complete a 16-item questionnaire to determine features of the path leading to IBD *** diagnostic time was defined as the time from symptom onset to consulting a physician(patient waiting time)and from first consultation to IBD diagnosis(physician diagnostic time).Univariate and multivariate analyses were performed to identify risk factors for each time *** The total diagnostic time was significantly longer in Crohn’s disease(CD)compared to ulcerative colitis(UC)patients(12.0 vs 4.0 mo;P<0.001),mainly due to increased physician diagnostic time(5.5 vs 1.0 mo;P<0.001).In a multivariate analysis,the predominant symptoms diarrhea(P=0.012)and skin lesions(P=0.028)as well as performed gastroscopy(P=0.042)were associated with longer physician diagnostic time in CD *** UC,fever was correlated(P=0.020)with shorter physician diagnostic time,while fatigue(P=0.011)and positive family history(P=0.046)were correlated with longer physician diagnostic *** We demonstrated that CD patients compared to UC are at risk of long diagnostic *** efforts should focus on shortening the diagnostic delay for a better outcome in these patients.

关键词： Diagnostic time Diagnostic delay Crohn’s disease Ulcerative colitis Germany

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Treatment of gastrointestinal neuroendocrine tumors with inhibitors of growth factor receptors and their signaling pathways: Recent advances and future perspectives

引用

World Journal of Gastroenterology 2008年第16期14卷 2461-2473页

作者： michael.Hpfner Detlef Schuppan Hans Scherübl Institute of Physiology Charité-Universitts-medizin Berlin Campus Benjamin Franklin Beth Israel Deaconess Medical Center and Harvard Medical School Klinik für Innere Medizin Gastroenterologie und Gastrointestinale Onkologie Klinikum am Urban Vivantes Netzwerk für Gesundheit

The limited efficacy of conventional cytotoxic treatment regimes for advanced gastrointestinal neuroendocrine cancers emphasizes the need for novel and more effective medical treatment options. Recent findings on the specific biological features of this family of neoplasms has led to the development of new targeted therapies, which take into account the high vascularization and abundant expression of specific growth factors and cognate tyrosine kinase receptors. This review will briefly summarize the status and future perspectives of antiangiogenic, mTOR- or growth factor receptor-based pharmacological approaches for the innovative treatment of gastrointestinal neuroendocrine tumors. In view of the multitude of novel targeted approaches, the rationale for innovative combination therapies, i.e. combining growth factor (receptor)-targeting agents with chemo- or biotherapeutics or with other novel anticancer drugs such as HDAC or proteasome inhibitors will be taken into account.

关键词： Growth factor receptor Neuroendocrinegastrointestinal tumor Small molecule inhibitor lonoclonal antibody Multi kinase inhibition

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Growth factor receptors and related signalling pathways as targets for novel treatment strategies of hepatocellular cancer

引用

World Journal of Gastroenterology 2008年第1期14卷 1-14页

作者： michael.Hpfner Detlef Schuppan Hans Scherübl Institute of Physiology Charité-Universittsmedizin Berlin Campus Benjamin Franklin Berlin 12200 Germany Beth Israel Deaconess Medical Center Harvard Medical School Boston MA 02215 United States Klinik für Innere Medizin Gastroenterologie und Gastrointestinale Onkologie Klinikum am Urban Vivantes Netzwerk für Gesundheit Berlin 10967 Germany

Growth factors and their corresponding receptors are commonly overexpressed and/or dysregulated in many cancers including hepatocellular cancer （HCC）. Clinical trials indicate that growth factor receptors and their related signalling pathways play important roles in HCC cancer etiology and progression, thus providing rational targets for innovative cancer therapies. A number of strategies including monoclonal antibodies, tyrosine kinase inhibitors （＂small molecule inhibitors＂） and antisense oligonucleotides have already been evaluated for their potency to inhibit the activity and downstream signalling cascades of these receptors in HCC. First clinical trials have also shown that multi-kinase inhibition is an effective novel treatment strategy in HCC. In this respect sorafenib, an inhibitor of Raf-, VEGF- and PDGF-signalling, is the first multi-kinase inhibitor that has been approved by the FDA for the treatment of advanced HCC. Moreover, the serine-threonine kinase of mammalian target of rapamycin （mTOR） upon which the signalling of several growth factor receptors converge plays a central role in cancer cell proliferation, roTOR inhibition of HCC is currently also being studied in preclinical trials. As HCCs represent hypervascularized neoplasms, inhibition of tumour vessel formation via interfering with the VEGF/VEGFR system is another promising approach in HCC treatment. This review will summarize the current status of the various growth factor receptor-based treatment strategies and in view of the multitude of novel targeted approaches, the rationale for combination therapies for advanced HCC treatment will also be taken into account.

关键词： Growth factor receptor Hepatocellular cancer Small molecule inhibitor Monoclonal antibody Innovative cancer treatment Sorafenib Bevacizumab Erlotinib

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Targeted medical therapy of biliary tract cancer:Recent advances and future perspectives

引用

World Journal of Gastroenterology 2008年第46期14卷 7021-7032页

作者： michael.Hpfner Detlef Schuppan Hans Scherübl Institute of Physiology Charité-Universittsmedizin BerlinCampus Benjamin Franklin Beth Israel Deaconess Medical Center and Harvard Medical School Klinik für Innere Medizin Gastroenterologieund Gastrointestinale OnkologieKlinikum am Urban Vivantes Netzwerk für Gesundheit10967 BerlinGermany

The limited efficacy of cytotoxic therapy for advanced biliary tract and gallbladder cancers emphasizes the need for novel and more effective medical treatment options. A better understanding of the specific biological features of these neoplasms led to the development of new targeted therapies, which take the abundant expression of several growth factors and cognate tyrosine kinase receptors into account. This review will briefly summarize the status and future perspectives of antiangiogenic and growth factor receptor-based pharmacological approaches for the treatment of biliary tract and gallbladder cancers. In view of multiple novel targeted approaches, the rationale for innovative therapies, such as combinations of growth factor (receptor)-targeting agents with cytotoxic drugs or with other novel anticancer drugs will be highlighted.

关键词： Growth factor receptor Biliary tract cancer Small molecule inhibitor lonoclonal antibody Innovative cancer treatment Sorafenib Bevacizumab Erlotinib

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Histone deacetylase inhibitor MS-275 alone or combined with bortezomib or sorafenib exhibits strong antiproliferative action in human cholangiocarcinoma cells

引用

World Journal of Gastroenterology 2007年第33期13卷 4458-4466页

作者： Viola Baradari michael.Hpfner Alexander Huether Detlef Schuppan Hans Scherübl Institute of Physiology Charité-Universit?tsmedizin Berlin CampusBenjamin Franklin Berlin Germany Division of Gastroenterology Beth Israel Deaconess Medical Center Harvard Medical School Boston United States Klinik für Gastroenterologie und Gastrointestinale Onkologie Klinikum Am Urban Vivantes Netzwerk fürGesundheit Berlin Germany

AIM: To investigate the antiproliferative effect of the histone deacetylase (HDAC) inhibitor MS-275 on cholangiocarcinoma cells alone and in combination with conventional cytostatic drugs (gemcitabine or doxorubicin) or the novel anticancer agents sorafenib or bortezomib. METHODS: Two human bile duct adenocarcinoma cell lines (EGI-1 and TFK-1) were studied. Crystal violet staining was used for detection of cell number changes. Cytotoxicity was determined by measuring the release of the cytoplasmic enzyme lactate dehydrogenase (LDH). Apoptosis was determined by measuring the enzyme activity of caspase-3. Cell cycle status reflected by the DNA content was detected by flow ***: MS-275 treatment potently inhibited the proliferation of EGI-1 and TFK-1 cholangiocarcinoma cells by inducing apoptosis and cell cycle arrest. MS-275-induced apoptosis was characterized by activation of caspase-3, up-regulation of Bax and down-regulation of Bcl-2. Cell cycle was predominantly arrested at the G1/S checkpoint, which was associated with induction of the cyclin-dependent kinase inhibitor p21Waf/CIP1. Furthermore, additive anti-neoplastic effects were observed when MS-275 treatment was combined with gemcitabine or doxorubicin, while combination with the multi-kinase inhibitor sorafenib or the proteasome inhibitor bortezomib resulted in overadditive anti-neoplastic ***: The growth of human cholangiocarcinoma cells can be potently inhibited by MS-275 alone or in combination with conventional cytostatic drugs or new, targeted anticancer agents.

关键词： Apoptosis Cholangiocarcinoma Bortezomib Combination treatment Histone deacetylase inhibitor MS-275 Proteasome inhibitor Sorafenib

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Tyrosine kinase of insulin-like growth factor receptor as target for novel treatment and prevention strategies of colorectal cancer

引用

World Journal of Gastroenterology 2006年第35期12卷 5635-5643页

作者： michael.Hpfner Andreas P Sutter Alexander Huether Viola Baradari Hans Scherübl Charité-Universittsmedizin Berlin Campus Benjamin Franklin Medical Clinic I Gastroenterology/Infectious Diseases/ Rheumatology Berlin Germany Klinik für Gastroenterologie und Gastrointestinale Onkologie Vivantes-Klinikum Am Urban Dieffenbachstr. 1 Berlin 10967 Germany

AIM： To investigate the antineoplastic potency of the novel insulin-like growth factor 1 receptor （IGF-1R） tyrosine kinase inhibitor （TKI） NVP-AEW541 in cell lines and primary cell cultures of human colorectal cancer （CRC）. METHODS： Cells of primary colorectal carcinomas were from 8 patients. Immunostaining and crystal violet staining were used for analysis of growth factor receptor protein expression and detection of cell number changes, respectively. Cytotoxicity was determined by measuring the release of the cytoplasmic enzyme lactate dehydrogenase （LDH）. The proportion of apoptotic cells was determined by quantifying the percentage of sub-G1 （hypodiploid） cells. Cell cycle status reflected by the DNA content of the nuclei was detected by flow cytometry. RESULTS： NVP-AEW541 dose-dependently inhibited the proliferation of colorectal carcinoma cell lines and primary cell cultures by inducing apoptosis and cell cycle arrest. Apoptosis was characterized by caspase-3 activation and nuclear degradation. Cell cycle was arrested at the G1/S checkpoint. The NVP-AEW541-mediated cell cycle-related signaling involved the inactivation of Akt and extracellular signal-regulated kinase （ERK） 1/2, the upregulation of the cyclin-dependent kinase inhibitors p21^waf1/CIP1 and p27^kjp1, and the downregulation of the cell cycle promoter cyclin D1. Moreover, BAX was upregulated during NVP-AEW541-induced apoptosis, whereas Bcl-2 was downregulated. Measurement of LDH release showed that the antineoplastic effect of NVP-AEW541 was not due to general cytotoxicity of the compound. However, augmented antineoplastic effects were observed in combination treatments of NVP-AEW541 with either 5-FU, or the EGFR-antibody cetuximab, or the HMG-CoA-reductase inhibitor fluvastatin. CONCLUSION： IGF-1R-TK inhibition is a promising novel approach for either monoor combination treatment strategies of colorectal carcinoma and even for CRC chemoprevention.

关键词： Insulin-like growth factor receptor Tyrosine kinase Colorectal cancer Apoptosis Cell cycle arrest

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

A systematic literature review on the effectiveness of eurythmy therapy

引用

Journal of Integrative Medicine 2015年第4期13卷 217-230页

作者： Désirée Lotzke Peter Heusser Arndt Büssing Quality of Life Spirituality and Coping Institute of Integrative Medicine University of Witten/Herdecke Theory of Medicine Integrative and Anthroposophic Medicine Institute of Integrative MedicineUniversity of Witten/Herdecke

BACKGROUND：Eurythmy therapy is a movement therapy of anthroposophic medicine that can have effects on a person’s physical body,spirit,and ***：The aim of this publication was to update and summarize the relevant literature on the effectiveness of eurythmy in a therapeutic context since *** STRATEGY：Different databases like Pub Med,MEDPILOT,Research Gate,The Cochrane Library,DIMDI,Arthe and also the journal databases Der Merkurstab and the European Journal of Integrative Medicine were searched for prospective and retrospective clinical trials in German or English *** CRITERIA：There were no limitations for indication,considered outcome or age of *** EXTRACTION AND ANALYSIS：Studies were evaluated with regard to their description of the assembly process and treatment,adequate reporting of follow-ups,and equality of comparison groups in controlled ***：Eleven studies met the inclusion *** included two single-arm,non-controlled pilot studies,two publications on the same non-randomized controlled trial and one case study;six further studies referred to a prospective cohort study,the Anthroposophic Medicine Outcome *** of these studies described positives treatment effects with varying effect *** studies were heterogynous according to the indications,age groups,study design and measured *** methodological quality of the studies varied *** were no clear improvements since 2008,when the recommendations were published in the fi rst ***：Eurythmy seems to be a benefi cial add-on in a therapeutic context that can improve the health conditions of affected *** methodologically sound studies are needed to substantiate this positive impression.

关键词： eurythmy therapy mind-body and relaxation techniques anthroposophy review

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Tree diversity and nectar composition affect arthropod visitors on extrafloral nectaries in a diversity experiment

引用

Journal of Plant Ecology 2017年第1期10卷 201-212页

作者： michael.Staab Joel Methorst Jan Peters Nico blüthgen Alexandra-Maria Klein Faculty of Environment and Natural Resources Chair of Nature Conservation and Landscape EcologyUniversity of FreiburgTennenbacher Straße 479106 FreiburgGermany Institute of Ecology Leuphana University of LüneburgScharnhorststraße 121335 LüneburgGermany Ecological Network Group Department of BiologyTechnical University DarmstadtSchnittspahnstraße 1064287 DarmstadtGermany

Aims Plants with extrafloral nectaries(EFNs)are common in tropical and subtropical habitats and,despite many other arthropods also forage for EFN,most studies solely focused on the defense mutualisms between EFN plants and *** study aims at a quantitative assessment of the entire arthropod community that visits EFN trees to compare visitor communities between different tree species to disentangle the mechanisms that may drive EFN visitor community *** also test for tree diversity effects on EFN visitors,as it is unknown if local tree species richness relates to the abundance and species richness of arthropods foraging for *** We sampled EFN-visiting arthropods in the experimental tree species richness gradient of the BEF-China Experiment,the currently largest forest diversity experiment in the world,and tested if tree species richness affects EFN visitors and if visitor community composition differs between EFN tree *** a second step,we analyzed the EFN of Ailanthus altissima and Triadica cochinchinensis,the two EFN tree species with highest visitor abundance,for sugars and amino acids(AA)to test if tree species-specific differences in nectar chemistry translate to differing visitor ***,we conducted a choice experiment using different artificial nectar solutions to test if nectar quality affects foraging decisions of ants,the most frequent EFN visitors in our study *** Findings EFN trees in young successional forests in subtropical South-East China are visited by a diverse assemblage of arthropods including ants,beetles,flies,and *** ants accounted for about 75%of all individuals,non-ant visitors were by far more species *** abundance and species richness declined with increasing tree species richness,suggesting a resource dilution effect,because plots with more tree species had proportionally less EFN tree individuals and thus lower nectar *** altissima and ***

关键词： amino acids BEF-China choice experiment formicidae HPLC chemical analysis

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Signaling pathways involved in the inhibition of epidermal growth factor receptor by erlotinib in hepatocellular cancer

引用

World Journal of Gastroenterology 2006年第32期12卷 5160-5167页

作者： Alexander Huether michael.Hpfner Andreas P Sutter Viola Baradari Detlef Schuppan Hans Scherübl Charité-Universittsmedizin Berlin Campus Benjamin Franklin Medical Clinic ⅠGastroenterology/Infectious Diseases/RheumatologyBerlinGermany Harvard Medical School Beth Israel Deaconess Medical Center Division of Gastroenterology and HepatologyBostonUnited States

AIM： To examine the underlying mechanisms of erlotinib-induced growth inhibition in hepatocellular carcinoma （HCC）. METHODS： Erlotinib-induced alterations in gene expression were evaluated using cDNA array technology; changes in protein expression and/or protein activation due to erlotinib treatment as well as IGF-1-induced EGFR transactivation were investigated using Western blotting. RESULTS： Erlotinib treatment inhibited the mitogen activated protein （MAP）-kinase pathway and signal transducer of activation and transcription （STAT）- mediated signaling which led to an altered expression of apoptosis and cell cycle regulating genes as demonstrated by cDNA array technology. Overexpression of proapoptotic factors like caspases and gadds associated with a down-regulation of antiapoptotic factors like Bcl-2, Bcl-XL or jun D accounted for erlotinib＇s potency to induce apoptosis. Downregulation of cell cycle regulators promoting the G1/S-transition and overexpression of cyclin-dependent kinase inhibitors and gadds contributed to the induction of a G1/G0-arrest in response to erlotinib. Furthermore, we displayed the transactivation of EGFR-mediated signaling by the IGF-1-receptor and showed erlotinib＇s inhibitory effects on the receptor-receptor cross talk. CONCLUSION： Our study sheds light on the understanding of the mechanisms of action of EGFR-TK- inhibition in HCC-cells and thus might facilitate the design of combination therapies that act additively or synergistically. Moreover, our data on the pathways responding to erlotinib treatment could be helpful in predicting the responsiveness of tumors to EGFR-TKIs in the future.

关键词： Epidermal growth factor receptor Insulinlike growth factor receptor Tarceva^TM Signal transducerof activation and transcription Extracellular regulatedkinase Gene expression

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

CONVERGENCE OF A CONSERVATIVE DIFFERENCE SCHEME FOR THE ZAKHAROV EQUATIONS IN TWO DIMENSIONS

引用

Journal of Computational Mathematics 1997年第3期15卷 219-232页

作者： Guo, bl Chang, QS INST APPL PHYS & COMPUTAT MATH BEIJING 100088PEOPLES R CHINA CHINESE ACAD SCI INST APPL MATHBEIJINGPEOPLES R CHINA

A conservative difference scheme is presented for the initial-boundary-value problem of a generalized Zakharov equations. On the basis of a prior estimates in L-2 norm, the convergence of the difference solution is proved in order O(h(2) + r(2)). In the proof, a new skill is used to deal with the term of difference quotient (e(j,k)(n))t. This is necessary, since there is no estimate of E(x, y, t) in L-infinity norm.

关键词： Math CONVERGENCE OF A CONSERVATIVE DIFFERENCE SCHEME FOR THE ZAKHAROV EQUATIONS IN TWO DIMENSIONS

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：