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179篇 您的检索式:作者名="Christopher D G"
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1Establishing proof of concept:Platelet-rich plasma and bone marrow aspirate concentrate may improve cartilage repair following surgical treatment for osteochondral lesions of the talus显示文摘Osteochondral lesions of the talus are common injuries in the athletic patient. They present a challenging clinical problem as cartilage has a poor potential for healing. Current surgical treatments consist of reparative(microfracture) or replacement(autologous osteochondral graft) strategies and demonstrate good clinical outcomes at the short and medium term follow-up. Radiological findings and second-look arthroscopy however, indicate possible poor cartilage repair with evidence of fibrous infill and fissuring of the regenerative tissue following microfracture. Longer-term follow-up echoes these findings as it demonstrates a decline in clinical outcome. The nature of the cartilage repair that occurs for an osteochondral graft to become integrated with the native surround tissue is also of concern. Studies have shown evidence of poor cartilage integration,with chondrocyte death at the periphery of the graft, possibly causing cyst formation due to synovial fluid ingress. Biological adjuncts, in the form of platelet-rich plasma(PRP) and bone marrow aspirate concentrate(BMAC), have been investigated with regard to their potential in improving cartilage repair in both in vitro and in vitro settings. The in vitro literature indicates that these biological adjuncts may increase chondrocyte proliferation as well as synthetic capability, while limiting the catabolic effects of an inflammatory joint environment. These findings have been extrapolated to in vitro animal models, with results showing that both PRP and BMAC improve cartilage repair. The basic science literature therefore establishes the proof of concept that biological adjuncts may improve cartilage repair when used in conjunction with reparative and replacement treatment strategies for osteochondral lesions of the talus.Niall A Smyth Christopher D Murawski Amgad M Haleem Charles P Hannon Ian Savage-Elliott John G Kennedy 2012World Journal of Orthopedics2012,3,7:8
2Vanishing bile duct syndrome in human immunodeficiency virus infected adults:A report of two cases显示文摘Vanishing bile duct syndrome(VBDS) is a group of rare disorders characterized by ductopenia,the progressive destruction and disappearance of intrahepatic bile ducts leading to cholestasis.Described in association with medications,autoimmune disorders,cancer,transplantation,and infections,the specific mechanisms of disease are not known.To date,only 4 cases of VBDS have been reported in human immunodeficiency virus(HIV) infected patients.We report 2 additional cases of HIV-associated VBDS and review the features common to the HIV-associated cases.Presentation includes hyperbilirubinemia,normal liver imaging,and negative viral and autoimmune hepatitis studies.In HIV-infected subjects,VBDS occurred at a range of CD4+ T-cell counts,in some cases following initiation or change in antiretroviral therapy.Lymphoma was associated with two cases;nevirapine,antibiotics,and viral co-infection were suggested as etiologies in the other cases.In HIV-positive patients with progressive cholestasis,early identification of VBDS and referral for transplantation may improve outcomes.Ana Paula Oppenheimer Christopher Koh Mary McLaughlin John C Williamson Thomas D Norton Jennifer Laudadio Theo Heller David E Kleiner Kevin P High Caryn G Morse 2013World Journal of Gastroenterology2013,19,1:8
3Update on surgical treatment of pancreatic neuroendocrine neoplasms显示文摘Pancreatic neuroendocrine neoplasms(PNENs) are rare and account for only 2%-4% of all pancreatic neoplasms. All PNENs are potential(neurendocrine tumors PNETs) or overt(neuroendocrine carcinomas PNECs) malignant,but a subset of PNETs is low-risk. Even in case of low-risk PNETs surgical resection is frequently required to treat hormone-related symptoms and to obtain an appropriate pathological diagnosis. Low-risk PNETs in the body and the tail are ideal for minimallyinvasive approaches which should be tailored to the individual patient. Generally,surgeons must aim for parenchyma sparing in these cases. In high-risk and malignant PNENs,indications for tumor resection are much wider than for pancreatic adenocarcinoma,in many cases due to the relatively benign tumor biology. Thus,patients with locally advanced and metastatic PNETs may benefit from extensive resection. In experienced hands,even multi-organ resections are accomplished with acceptable perioperative morbidity and mortality rates and are associated with excellent long term survival. However,poorly differentiated neoplasms with high proliferation rates are associated with a dismal prognosis and may frequently only be treated with chemotherapy. The evidence on surgical treatment of PNENs stems from reviews of mostly singlecenter series and some analyses of nation-wide tumor registries. No randomized trial has been performed to compare surgical and non-surgical therapies in potentially resectable PNEN. Though such a trial would principally be desirable,ethical considerations and the heterogeneity of PNENs preclude realization of such a study. In the current review,we summarize recent advances in the surgical treatment of PNENs.Jan G D’Haese Chiara Tosolini Güralp O Ceyhan Bo Kong Irene Esposito Christoph W Michalski J?rg Kleeff 2014World Journal of Gastroenterology2014,20,38:4
4澳大利亚初级保健诊所新发腰背痛患者的预后:起始队列研究显示文摘目的估计初级保健诊所内新发腰背痛患者的1年预后,并确定其预后因素。设计1年随访队列研究。地点澳大利亚悉尼的初级保健诊所。参试者初级保健诊所接诊的973例非特异性腰背痛连续患者(平均年龄43.3岁,男性54.8%)。该起始队列患者腰背痛时间不足两周,征集自170名全科医生、理疗师或按摩师诊所。主要评估指标参试者完成基线调查问卷后,分别于初次就诊后6周、3个月和21个月时复查评估。评估内容包括:工作恢复情况、功能恢复情况和疼痛消失情况。潜在预后因素与恢复所需时间的关联性用Cox回归建模分析。结果12个月随访率〉97%。基线时工作能力下降的患者半数在14天内恢复了以前的工作状态(95%可信区间11-17天),83%在3个月内恢复。残疾(中位恢复时间31天,25-37天)和疼痛(中位58天,52-63天)则需要较长的时间才能恢复。只有72%的受试者于基线访问后12个月获得完全康复。高龄、赔偿诉讼、疼痛较重、就诊前腰背痛时间较长、就诊前因疼痛活动减少天数较多、抑郁情绪以及预期危险持续与所需恢复时问较长相关。结论在这个急性腰背痛初级保健患者队列,患者的预后并不像临床指南声称的那样乐观。多数患者的恢复缓慢。近三分之一的患者在腰背痛发作后1年尚未恢复。Nicholas Henschke Christopher G Maher Kathryn M Refshauge Robert D Herbert Robert G Cumming Jane Bleasel John York Anurina Das James H McAuley 蓝恭涛(译) 2008英国医学杂志中文版2008,11,6:2
5Serotonin type 3 receptor subunit gene polymorphisms associated with psychosomatic symptoms in irritable bowel syndrome:A multicenter retrospective study显示文摘BACKGROUND Single-nucleotide polymorphisms(SNPs)of the serotonin type 3 receptor subunit(HTR3)genes have been associated with psychosomatic symptoms,but it is not clear whether these associations exist in irritable bowel syndrome(IBS).AIM To assess the association of HTR3 polymorphisms with depressive,anxiety,and somatization symptoms in individuals with IBS.METHODS In this retrospective study,623 participants with IBS were recruited from five specialty centers in Germany,Sweden,the United States,the United Kingdom,and Ireland.Depressive,anxiety,and somatization symptoms and sociodemographic characteristics were collected.Four functional SNPs—HTR3A c.-42C>T,HTR3B c.386A>C,HTR3C c.489C>A,and HTR3E c.*76G>A—were genotyped and analyzed using the dominant and recessive models.We also performed separate analyses for sex and IBS subtypes.SNP scores were calculated as the number of minor alleles of the SNPs above.The impact of HTR3C c.489C>A was tested by radioligand-binding and calcium influx assays.RESULTS Depressive and anxiety symptoms significantly worsened with increasing numbers of minor HTR3C c.489C>A alleles in the dominant model(F_(depressive)=7.475,P_(depressive)=0.006;F_(anxiety)=6.535,P_(anxiety)=0.011).A higher SNP score(range 0-6)was linked to a worsened depressive symptoms score(F=7.710,P-linear trend=0.006)in IBS.The potential relevance of the HTR3C SNP was corroborated,showing changes in the expression level of 5-HT3AC variant receptors.CONCLUSION We have provided the first evidence that HTR3C c.489C>A is involved in depressive and anxiety symptoms in individuals with IBS.The SNP score indicated that an increasing number of minor alleles is linked to the worsening of depressive symptoms in IBS.Sabrina Berens Yuanjun Dong Nikola Fritz Jutta Walstab Mauro D'Amato Tenghao Zheng Verena Wahl Felix Boekstegers Justo Lorenzo Bermejo Cristina Martinez Stefanie Schmitteckert Egbert Clevers Felicitas Engel Annika Gauss Wolfgang Herzog Robin Spiller Miriam Goebel-Stengel Hubert Mönnikes Viola Andresen Frieling Thomas Jutta Keller Christian Pehl Christoph Stein-Thöringer Gerard Clarke Timothy G Dinan Eamonn M Quigley Gregory Sayuk Magnus Simrén Jonas Tesarz Gudrun Rappold Lukas van Oudenhove Rainer Schaefert Beate Niesler 2022World Journal of Gastroenterology2022,28,21:2
6Global malaria mortality between 1980 and 2010: a systematic analysis显示文摘Christopher JL Murray Lisa C Rosenfeld Stephen S Lim Kathryn G Andrews Kyle J Foreman Diana Haring Nancy Fullman Mohsen Naghavi Rafael Lozano Alan D Lopez 2012The Lancet2012,,9814:2
7Using simula- tion to inteIpret a discrete time survival model in a complex biological system: fertility and lameness in dairy cows显示文摘Christopher D H Jonathan N H Martin J G 2014Plos 0ne2014,9,8:1
8First experience with near real-time water vapor estimation in a German GPS nertwork 显示文摘Galina D Gerd G and Christoph R 2001Journal of Atmospheric and Solar - Terrestial Physics2001,63,:1
9Flavour-active wine yeasts显示文摘Antonio G Cordente Christopher D 2012Appl Microbiol Biotechnol2012,96,:1
10Synergistic Down-Regulation of Urokinase Plasminogen Activator Receptor and Matrix Metalloproteinase-9 in SNB19 Glioblastoma Cells Efficiently Inhibits Glioma Cell Invasion,Angiogenesis,and Tumor Growth1显示文摘SAJANI S L CHRISTOPHER S G NEYON Y D 2003Cancer Research2003,63,:1
11Connell integrate the effects of climate change across entire systems that predicting ecosystem shifts requires new approaches显示文摘Bayden D R Christopher D G H Thomas W 0,,10:1
12A Compact Optical Flow Cell for Nurse in Aqueous Halide Determination显示文摘Chris D G Peter D Christopher P M 0,,04:1
13Mutational analysis of the pullulanase-type debranching enzyme of maize indicates multiple functions in starch metabolism 显示文摘Jason R D Christophe C Martha G J 2003Plant Cell2003,15,:1
14查看详情显示文摘Christopher A S Rasmus H Arfa R.M Warwick B D Gillian M S Royston G Alan J D 0,,01:1
15The design and performance of a real-time CORBA scheduling service显示文摘Christopher D G David L L Douglas C S 2001Real-Time Systems2001,20,2:1
16Minimal gradient encoding for robust estimation of diffusion anisotropy☆显示文摘Nikolaos G Papadakis Chris D Murrills Laurance D Hall Christopher L.-H Huang T Adrian Carpenter 2000Magnetic Resonance Imaging2000,,:1
17A method for computing lexical semantic distance using linear functionals显示文摘DEL J CHRISTOPHE G C NATHAN D 2008Semantic Multimedia2008,6,2:1
18The effect of remifentanil on the bispectral index change and hemodynamic responses after orotracheal intubation 显示文摘Bruno G Christophe M Xavier D 2000Anesth Analg2000,90,1:1
19Mobilisation of metals in mineral tailings at the abandoned Sao Domingos copper mine (Portugal) by indigenous acidophilic bacteria显示文摘Bryan Christopher G Hallberg Kevin B Johnson D Barrie 2006Hydrometallurgy2006,83,14:1
20Lipid profiling identifies a triacylglycerol signature of insulin resistance and improves diabetes prediction in humans显示文摘Rhee Eugene P Cheng Susan Larson Martin G Walford Geoffrey A Lewis Gregory D McCabe Elizabeth Yang Elaine Farrell Laurie Fox Caroline S O’Donnell Christopher J Carr Steven A Vasan Ramachandran S Florez Jose C Clish Clary B Wang Thomas J Ger 2011Journal of Clinical Investigation2011,,4:1
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