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549篇 您的检索式:作者名="Christiane E"
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1Predictive value of Ki67 and p53 in locally advanced rectal cancer:Correlation with thymidylate synthase and histopathological tumor regression after neoadjuvant 5-FU-based chemoradiotherapy显示文摘AIM: To investigate the predictive value of Ki67 and p53 and their correlation with thymidylate synthase (TS) gene expression in a rectal cancer patient cohort treated according to a standardized recommended neoadjuvant treatment regimen.METHODS: Formalin fixed, paraffin embedded pre-therapeutical tumor biopsies (n = 22) and post-therapeutical resection specimens (n = 40) from patients with rectal adenocarcinoma (clinical UICC stage Ⅱ/Ⅲ) receiving standardized neoadjuvant 5-fluorouracil (5-FU) based chemoradiotherapy were studied for Ki67 and p53 expression by immunohistochemistry and correlated with TS mRNA expression by quantitative TaqMan real-time PCR after laser microdissection. The results were compared with histopathological tumor regression according to a standardized semiquantitative score grading system.RESULTS: Responders (patients with high tumor regression) showed a significantly lower Ki67 expression than non-responders in the pre-therapeutical tumor biopsies (81.2% vs 16.7%; P < 0.05) as well as in the post-therapeutical resection specimens (75.8% vs 14.3%; P < 0.01). High TS mRNA expression was significantly correlated with a high Ki67 index and low TS mRNA expression was significantly correlated with a low Ki67 index in the pre-therapeutical tumor biopsies (corr. coef. = 0.46; P < 0.01) as well as in the post-therapeutical resection specimens (corr. coef. = 0.40; P < 0.05). No significant association was found between p53 and TS mRNA expression or tumor regression.CONCLUSION: Ki67 has, like TS, predictive value in rectal cancer patients after neoadjuvant 5-FU based chemoradiotherapy. The close correlation between Ki67 and TS indicates that TS is involved in active cell cycle processes.Christiane Jakob Torsten Liersch Wolfdietrich Meyer Heinz Becker Gustavo B Baretton Daniela E Aust 2008World Journal of Gastroenterology2008,14,7:29
2Recovery from respiratory failure after decompression laparotomy for severe acute pancreatitis显示文摘We present three cases of patients (at the age of 56 years, 49 years and 74 years respectively) with severe acute pancreatitis (SAP), complicated by intra-abdominal compartment syndrome (ACS) and respiratory insufficiency with limitations of mechanical ventilation. The respiratory situation of the patients was significantly improved after decompression laparotomy (DL) and lung protective ventilation was re-achieved. ACS was discussed followed by a short review of the literature. Our cases show that DL may help patients with SAP to recover from severe respiratory failure.Sylvia Siebig Igors Iesalnieks Tanja Bruennler Christine Dierkes Julia Langgartner Juergen Schoelmerich Christian E Wrede 2008World Journal of Gastroenterology2008,14,35:7
3Liver transplantation for acute hepatic failure due to chemotherapy-induced HBV reactivation in lymphoma patients显示文摘Hepatitis B (HBV) reactivation induced by chemotherapy is problem encountered recently in the management of malignant diseases.Chemotherapy-induced HBV reactivation may ultimately lead to terminal acute liver failure.Liver transplantation (LT) currently remains the only definitive treatment option for such cases,but is generally denied to patients suffering from malignancy.Here,the authors describe 2 cases of cancer-free and HBV graft re-infection-free survival after LT performed for terminal liver failure arising from HBV reactivation induced by chemotherapy for advanced stage lymphoma.These 2 cases,and some other reports in the literature,may suggest that patients suffering from hematologic malignancies and terminal liver disease can be considered for LT if the prognosis of their hematologic malignancy is good.Timothée Noterdaeme Luc Longrée Christian Bataille Arnaud Deroover Anne Lamproye Jean Delwaide Yves Beguin Pierre Honoré Olivier Detry 2011World Journal of Gastroenterology2011,17,25:6
4Characterization of HULC, a Novel Gene With Striking Up-Regulation in Hepatocellular Carcinoma, as Noncoding RNA显示文摘Katrin Panzitt Marisa M.O. Tschernatsch Christian Guelly Tarek Moustafa Martin Stradner Heimo M. Strohmaier Charles R. Buck Helmut Denk Renée Schroeder Michael Trauner Kurt Zatloukal 2007Gastroenterology2007,,1:4
5Towards a standard diet-induced and biopsy-confirmed mouse model of non-alcoholic steatohepatitis: Impact of dietary fat source显示文摘BACKGROUND The trans-fat containing AMLN(amylin liver non-alcoholic steatohepatitis,NASH)diet has been extensively validated in C57BL/6J mice with or without the Lep^ob/Lep^ob(ob/ob)mutation in the leptin gene for reliably inducing metabolic and liver histopathological changes recapitulating hallmarks of NASH.Due to a recent ban on trans-fats as food additive,there is a marked need for developing a new diet capable of promoting a compatible level of disease in ob/ob and C57BL/6J mice.AIM To develop a biopsy-confirmed mouse model of NASH based on an obesogenic diet with trans-fat substituted by saturated fat.METHODS Male ob/ob mice were fed AMLN diet or a modified AMLN diet with trans-fat(Primex shortening)substituted by equivalent amounts of palm oil[Gubra amylin NASH,(GAN)diet]for 8,12 and 16 wk.C57BL/6J mice were fed the same diets for 28 wk.AMLN and GAN diets had similar caloric content(40%fat kcal),fructose(22%)and cholesterol(2%)level.RESULTS The GAN diet was more obesogenic compared to the AMLN diet and impaired glucose tolerance.Biopsy-confirmed steatosis,lobular inflammation,hepatocyte ballooning,fibrotic liver lesions and hepatic transcriptome changes were similar in ob/ob mice fed the GAN or AMLN diet.C57BL/6J mice developed a mild to moderate fibrotic NASH phenotype when fed the same diets.CONCLUSION Substitution of Primex with palm oil promotes a similar phenotype of biopsyconfirmed NASH in ob/ob and C57BL/6J mice,making GAN diet-induced obese mouse models suitable for characterizing novel NASH treatments.Michelle L Boland Denise Oro Kirstine S T■lb■l Sebastian T Thrane Jens Christian Nielsen Taylor S Cohen David E Tabor Fiona Fernandes Andrey Tovchigrechko Sanne S Veidal Paul Warrener Bret R Sellman Jacob Jelsing Michael Feigh Niels Vrang James L Trevaskis Henrik H Hansen 2019World Journal of Gastroenterology2019,25,33:3
6CD5 expression promotes IL-10 production through activation of the MAPK/Erk pathway and upregulation of TRPC1 channels in B lymphocytes显示文摘CD5 is constitutively expressed on T cells and a subset of mature normal and leukemic B cells in patients with chronic lymphocytic leukemia(CLL).Important functional properties are associated with CD5 expression in B cells,including signal transducer and activator of transcription 3 activation,IL-10 production and the promotion of B-lymphocyte survival and transformation.However,the pathway(s)by which CD5 influences the biology of B cells and its dependence on B-cell receptor(BCR)co-signaling remain unknown.In this study,we show that CD5 expression activates a number of important signaling pathways,including Erk1/2,leading to IL-10 production through a novel pathway independent of BCR engagement.This pathway is dependent on extracellular calcium(Ca2+)entry facilitated by upregulation of the transient receptor potential channel 1(TRPC1)protein.We also show that Erk1/2 activation in a subgroup of CLL patients is associated with TRPC1 overexpression.In this subgroup of CLL patients,small inhibitory RNA(siRNA)for CD5 reduces TRPC1 expression.Furthermore,siRNAs for CD5 or for TRPC1 inhibit IL-10 production.These findings provide new insights into the role of CD5 in B-cell biology in health and disease and could pave the way for new treatment strategies for patients with B-CLL.Soizic Garaud Taher E Taher Marjolaine Debant Miguel Burgos Sarra Melayah Christian Berthou Kaushal Parikh Jacques-Olivier Pers Damien Luque-Paz Gilles Chiocchia Maikel Peppelenbosch David A Isenberg Pierre Youinou Olivier Mignen Yves Renaudineau Rizgar A Mageed 2018Cellular & Molecular Immunology2018,15,2:2
7Performance characteristics of retrograde single-balloon endoscopy: A single center experience显示文摘AIM: To evaluate the technical success, diagnostic yield(DY) and therapeutic potential of retrograde single balloon enteroscopy(rS BE). METHODS: A retrospective review of 136 rS BE procedures performed at a tertiary academic referral center from January 2006 and September 2013 was completed. Patient characteristics including age, gender and inpatient status were collected. The indication for the procedure was categorized into one of three groups: Obscure gastrointestinal bleeding(GIB), evaluation for Crohn's disease and abnormal imaging. Procedural characteristics including insertion depth(ID), procedure time, concordance with pre-procedural imaging and complications were also recorded. Lastly, DY, defined as the percentage of cases producing either a definitive diagnosis or findings that could explain clinical symptoms and therapeutic yield(TY), defined as the percentage of cases in which a definitive intervention was performed, were determined. Mucosal tattooing and biopsy alone were not included in the TY. RESULTS: A total of 136 rS BE procedures were identified. Mean patient age was 57.5(± 16.2) years, 67(49.2%) were male, and 110(80.9%) procedures were performed on an outpatient basis. Indications for rS BE included GIB in 55(40.4%), evaluation of inflammatory bowel disease(IBD) in 29(21.3%), and imaging suggestive of pathology other than GIB or IBD in 43(31.6%). Nine(6.6%) rS BEs were performed for other indications. Mean ID was 68.3(± 39.3) cm proximal to the ileocecal valve and mean time to completion was 41.7(± 15.5) min. Overall, 73(53.7%) cases were diagnostic and 25(18.4%) cases were therapeutic in which interventions(argon plasma coagulation, stricture dilatation, polypectomy, etc.) were performed. Pre-procedural imaging was performed in 88(64.7%) patients. Endoscopic concordance of positive imaging findings was seen in 31(35.2%) cases. Follow up data was available in 93(68.4%) patients; 2(2.2%) reported post-procedural abdominal pain within 30 d following rS BE. There were no other reported complications. CONCLUSION: rS BE exhibits an acceptable diagnostic and TY, rendering it a safe and effective procedure for the evaluation and treatment of small bowel diseases.Kaci E Christian Karan Kapoor Eric M Goldberg 2016World Journal of Gastrointestinal Endoscopy2016,8,15:2
8Effects of flavonoids on the release of reactive oxygen species by stimulated human neutrophils显示文摘Benjamin Limasset Christian L E Doucen Jean Christophe Dore 1993Biochemical Pharmacology1993,46,7:2
9The functional complex network approach to foster forest resilience to global changes显示文摘Human impacts on Earth's ecosystems have greatly intensified in the last decades. This is reflected in unexpected disturbance events, as well as new and increasing socio-economic demands, all of which are affecting the resilience of forest ecosystems worldwide and the provision of important ecosystem services. This Anthropocene era is forcing us to reconsider past and current forest management and silvicultural practices, and search for new ones that are more flexible and better at dealing with the increasing uncertainty brought about by these accelerating and cumulative global changes. Here, we briefly review the focus and limitations of past and current forest management and silvicultural practices mainly as developed in Europe and North America. We then discuss some recent promising concepts, such as managing forests as complex adaptive systems, and approaches based on resilience, functional diversity, assisted migration and multi-species plantations, to propose a novel approach to integrate the functionality of species-traits into a functional complex network approach as a flexible and multi-scale way to manage forests for the Anthropocene. This approach takes into consideration the high level of uncertainty associated with future environmental and societal changes. It relies on the quantification and dynamic monitoring of functional diversity and complex network indices to manage forests as a functional complex network. Using this novel approach, the most efficient forest management and silvicultural practices can be determined, as well as where, at what scale, and at what intensity landscape-scale resistance, resilience and adaptive capacity of forests to global changes can be improved.Christian Messier Jürgen Bauhus Frederik Doyon Fanny Maure Rita Sousa-Silva Philippe Nolet Marco Mina Núria Aquilué Marie-Josée Fortin Klaus Puettmann 2019Forest Ecosystems2019,6,3:2
10Vapor pressure studies of benzene-cyclodextrin inclusion complexes in aqueous solution显示文摘TUCKER E E CHRISTIAN S D 1984J Am Chem Sci1984,106,7:1
11A role for ERK MAP kinase in physiologic temporal integration in hippocampal area CAI显示文摘Selcher J C Weeber E J Christian J 2003LeamMem2003,10,1:1
12Environmental impact from the use of recycled materials in road construction:method for decision-making in Norway显示文摘GORDANA P CHRISTIAN J E ARNT OLAV H 2004Resources Conservation and Recycling2004,42,3:1
13Novel insight into inhibitor binding of highly symmetric HIV-1 protease显示文摘JORG W CHRISTIANE B GERMAN E 2008Chem Bio Chem2008,9,6:1
14Magnetic response of metamaterialst 100 terahertz显示文摘Stefan Linden L Christian E Martin W 2004Science2004,306,5700:1
15First-principles Density Functional Theory Study of Native Point Defects in Bi(2)Te (3) 显示文摘Adham H Christian E 2011Physical Review B2011,84,14:1
16Collagen network remodelling and diastolic stiffness of the rat left ventricle with pressure overload hypertrophy 显示文摘Christian W D Jorge E J Joseph S J 1988Cardiovascular Research1988,22,:1
17Inorganic soil amendment effects on sand-Based sports turf media 显示文摘Li D Y Joo Y K Christians N E etal 2000Crop Science2000,40,:1
18Model- ing of a transformer winding for calculation of its transmis- sion function 显示文摘RAHIMPOUR E CHRISTIAN J FESER K 2000Elektrie2000,54,2:1
19Nutrient require- ment and cycling in energy crops 显示文摘Christian D G Riche A B Yates N E 1997Sustainable Agri- culture for Food Energy and Industry1997,2,:1
20Indications of nonlin- ear deterministic and finite - dimensional structures in time series of brain electrical activity: Dependence on recording region and brain state显示文摘Ralph G Andrzejak Klaus Lehnertz Florian Mormann Christo- ph Rieke Peter David Christian E Elger 2001Physical Review E2001,64,06:1
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