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1176篇 您的检索式:作者名="Donald M"
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1Fecal microbiota transplantation as novel therapy in gastroenterology:A systematic review显示文摘AIM:To study the clinical efficacy and safety of Fecal microbiota transplantation(FMT).We systematically reviewed FMT used as clinical therapy.METHODS:We searched MEDLINE,EMBASE,the Cochrane Library and Conference proceedings from inception to July,2013.Treatment effect of FMT was calculated as the percentage of patients who achieved clinical improvement per patient category,on an intention-to-treat basis.RESULTS:We included 45 studies;34 on Clostridium difficile-infection(CDI),7 on inflammatory bowel disease,1 on metabolic syndrome,1 on constipation,1 on pouchitis and 1 on irritable bowel syndrome(IBS).In CDI 90% resolution of diarrhea in 33 case series(n = 867) was reported,and 94% resolution of diarrhea after repeated FMT in a randomized controlled trial(RCT)(n = 16).In ulcerative colitis(UC) remission rates of 0% to 68% were found(n = 106).In Crohn's disease(CD)(n = 6),no benefit was observed.In IBS,70% improvement of symptoms was found(n = 13).100% Reversal of symptoms was observed in constipation(n = 3).In pouchitis,none of the patients(n = 8) achieved remission.One RCT showed significant improvement of insulin sensitivity in metabolic syndrome(n = 10).Serious adverse events were rare.CONCLUSION:FMT is highly effective in CDI,and holds promise in UC.As for CD,chronic constipation,pouchitis and IBS data are too limited to draw conclusions.FMT increases insulin sensitivity in metabolic syndrome.Noortje G Rossen John K Mac Donald Elisabeth M de Vries Geert R D'Haens Willem M de Vos Erwin G Zoetendal Cyriel Y Ponsioen 2015World Journal of Gastroenterology2015,21,17:41
2Role of polyethylene particles in peri-prosthetic osteolysis:A review显示文摘There is convincing evidence that particles produced by the wear of joint prostheses are causal in the periprosthetic loss of bone,or osteolysis,which,if it progresses,leads to the phenomenon of aseptic loosening.It is important to fully understand the biology of this bone loss because it threatens prosthesis survival,and loosened implants can result in peri-prosthetic fracture,which is disastrous for the patient and presents a difficult surgical scenario.The focus of this review is the bioactivity of polyethylene(PE)particles,since there is evidence that these are major players in the development and progression of osteolysis around prostheses which use PE as the bearing surface.The review describes the biological consequences of interaction of PE particles with macrophages,osteoclasts and cells of the osteoblast lineage,including osteocytes.It explores the possible cellular mechanisms of action of PE and seeks to use the findings to date to propose potential nonsurgical treatments for osteolysis.In particular,a nonsurgical approach is likely to be applicable to implants containing newer,highly cross-linked PEs(HXLPEs),for which osteolysis seems to occur with much reduced PE wear compared with conventional PEs.The caveat here is that we know little as yet about the bioactivity of HXLPE particles and addressing this constitutes our next challenge.Gerald J Atkins David R Haynes Donald W Howie David M Findlay 2011World Journal of Orthopedics2011,2,10:11
3Clinical application of concentrated bone marrow aspirate in orthopaedics:A systematic review显示文摘AIM To examine the evidence behind the use of concentrated bone marrow aspirate(c BMA) in cartilage, bone, and tendon repair; establish proof of concept for the use of cB MA in these biologic environments; and provide the level and quality of evidence substantiating the use of cB MA in the clinical setting.METHODS We conducted a systematic review according to PRISMA guidelines. EMBASE, MEDLINE, and Web of Knowledge databases were screened for the use of cB MA in the repair of cartilage, bone, and tendon repair. We extracted data on tissue type, cB MA preparation, cB MA concentration, study methods, outcomes, and level of evidence and reported the results in tables and text.RESULTS A total of 36 studies met inclusion/exclusion criteria and were included in this review. Thirty-one of 36(86%) studies reported the method of centrifugation and preparation of cB MA with 15(42%) studies reporting either a cell concentration or an increase from baseline. Variation of c BMA application was seen amongst the studies evaluated. Twenty-one of 36(58%) were level of evidence Ⅳ, 12/36(33%) were level of evidence Ⅲ, and 3/36(8%) were level of evidence Ⅱ. Studies evaluated full thickness chondral lesions(7 studies), osteochondral lesions(10 studies), osteoarthritis(5 studies), nonunion or fracture(9 studies), or tendon injuries(5 studies). Significant clinical improvement with the presence of hyaline-like values and lower incidence of fibrocartilage on T2 mapping was found in patients receiving cB MA in the treatment of cartilaginous lesions. Bone consolidation and time to bone union was improved in patients receiving cB MA. Enhanced healingrates, improved quality of the repair surface on ultrasound and magnetic resonance imaging, and a decreased risk of re-rupture was demonstrated in patients receiving cB MA as an adjunctive treatment in tendon repair. CONCLUSION The current literature demonstrates the potential benefits of utilizing c BMA for the repair of cartilaginous lesions, bony defects, and tendon injuries in the clinical setting. This study also demonstrates discrepancies between the literature with regards to various methods of centrifugation, variable cell count concentrations, and lack of standardized outcome measures. Future studies should attempt to examine the integral factors necessary for tissue regeneration and renewal including stem cells, growth factors and a biologic scaffold.Arianna L Gianakos Li Sun Jay N Patel Donald M Adams Frank A Liporace 2017World Journal of Orthopedics2017,8,6:5
4AIDS-associated plasmablastic lymphoma presenting as a poorly differentiated esophageal tumor: A diagnostic dilemma显示文摘Plasmablastic lymphoma (PBL) is a rare form of diffuse large B-cell lymphoma characterized by weak/absent expression of conventional B-cell markers and strong expression of plasma cell markers. It is strongly associated with human immunodeficiency virus (HIV) and Epstein Barr virus infection, and shows an unusual tropism to the oral cavity. Herein we describe a patient with AIDS who presented with weight loss and dysphagia owing to a large gastroesophageal mass. His radiographic and endoscopic findings and long history of cigarette consumption suggested carcinoma. Biopsy demonstrated a poorly differentiated tumor stained negatively to routine lymphoid markers including CD20. However, gene rearrangement studies confirmed a B-cell process and a more detailed immunohistochemical analysis revealed the cells stained positively for CD138 (plasma cell antigen). These findings were diagnostic of PBL. Our report reviews the wide differential diagnosis of PBL and underscores the importance of a broad array of viral and molecular studies needed to establish this diagnosis.Deepthi Mani Donald G Guinee Jr David M Aboulafia 2008World Journal of Gastroenterology2008,14,27:4
5不同含量碳水化合物饮食对大鼠心脏和脑18^F-FDG摄取的影响显示文摘目的探讨不同含量碳水化合物饮食对大鼠心脏和脑组织18F-FDG摄取的影响。方法以标准饮食饲养2周后,保持饮食总能量不变,将15只Wistar大鼠随机分为3组:低碳水化合物组(LC)、中碳水化合物组(IC)和高碳水化合物组(HC);每组大鼠每种饮食饲养4周后,对动物行18F-FDGPET全身显像,于第2天尾静脉取血测定酮体、葡萄糖、胰岛素和胰高血糖素的含量。图像经计算机处理,获取心脏和脑的最大标准摄取值(SUVmax)。结果心脏SUVmax分别为:LC组3.27±0.43,IC组10.92±0.89,HC组10.95±0.81;脑SUVmax:LC组4.78±0.19,IC组4.04±0.15,HC组3.77±0.24。LC组与IC和HC组之间的差异均有统计学意义(P<0.001),IC和HC组间差异无统计学意义。LC组酮体为(726.10±65.95)μmol/L,约为IC和HC组的6~7倍;血清酮体水平与心脏SUVmax呈负相关(r=-0.764,P<0.001),与脑SUVmax呈正相关(r=0.569,P<0.001);各组间血清胰岛素、血糖和胰高血糖素的差异均无统计学意义。结论长期极低碳水化合物饮食使大鼠心脏对FDG的摄取明显降低,而脑组织对葡萄糖的摄取略有增加。缪蔚冰 王荣福 BLAUFOX M Donald FINE Eugene J KOBA Wade 2009中国医学影像技术2009,,7:4
6Sentinel-lymph-node resection compared with conventional axillary-lymph-node dissection in clinically node-negative patients with breast cancer: overall survival findings from the NSABP B-32 randomised phase 3 trial显示文摘David N Krag Stewart J Anderson Thomas B Julian Ann M Brown Seth P Harlow Joseph P Costantino Takamaru Ashikaga Donald L Weaver Eleftherios P Mamounas Lynne M Jalovec Thomas G Frazier R Dirk Noyes André Robidoux Hugh MC Scarth Norman Wolmark 2010Lancet Oncology2010,,10:3
7Hepatocellular carcinoma after Iocoregional therapy:Magnetic resonance imaging findings in falsely negative exams显示文摘AIM:To elucidate causes for false negative magnetic resonance imaging(MRI)exams by identifying imaging characteristics that predict viable hepatocellular carcinoma(HCC)in lesions previously treated with locoregional therapy when obvious findings of recurrence are absent.METHODS:This retrospective institutional review board-approved and Health Insurance Portability and Accountability Act-compliant study included patients who underwent liver transplantation at our center between 1/1/2000 and 12/31/2012 after being treated for HCC with locoregional therapy.All selected patients had a contrast-enhanced MRI after locoregional therapy within 90 d of transplant that was prospectively interpreted as without evidence of residual or recurrenttumor.Retrospectively,2 radiologists,blinded to clinica and pathological data,independently reviewed the pre transplant MRIs for 7 imaging features.Liver explan histopathology provided the reference standard,with clinically significant tumor defined as viable tumor≥1.0cm in maximum dimension.Fisher’s exact test was firs performed to identify significant imaging features.RESULTS:Inclusion criteria selected for 42 patients with 65 treated lesions.Fourteen of 42 patients(33%and 16 of 65 treated lesions(25%)had clinically significant viable tumor on explant histology.None o the 7 imaging findings examined could reliably and reproducibly determine which treated lesion had viable tumor when the exam had been prospectively read as without evidence of viable HCC.CONCLUSION:After locoregional therapy some treated lesions that do not demonstrate any MRI evidence o HCC will contain viable tumor.As such even patients with a negative MRI following treatment should receive regular short-term imaging surveillance because some have occult viable tumor.The possibility of occult tumo should be a consideration when contemplating any action which might delay liver transplant.David Becker-Weidman Jesse M Civan Sandeep P Deshmukh Christopher G Roth Steven K Herrine Laurence Parker Donald G Mitchell 2016World Journal of Hepatology2016,8,16:2
8Development of an educational cartoon to prevent worm infections in Chinese schoolchildren显示文摘Background:With more than two billion people infected worldwide,soil-transmitted helminths(STH)are the most widespread infections.To date,STH control efforts rely predominantly on recurrent mass drug administration(MDA),which does not prevent reinfection.Additional public health measures including novel health educational tools are required for more sustained integrated control of STH.We describe the development of an educational cartoon video(The Magic Glasses)targeting STH infections in Chinese schoolchildren and its pilot testing in China.We applied an extensive community-based mixed methods approach involving input from the target group of 9–10 year old schoolchildren and key informants,such as teachers,doctors and parents,in order to identify potential STH infection risks in the study area and to formulate key messages for the cartoon.The development of the educational cartoon included three major steps:formative research,production,and pilot testing and revision.Results:We found that most adults and approximately 50%of the schoolchildren were aware of roundworm(Ascaris)infection,but knowledge of transmission,prevention and treatment of STH was poor.Observations in the study area showed that unhygienic food practices,such as eating raw and unwashed fruit or playing in vegetable gardens previously fertilised with human faeces,posed major STH infection risks.Conclusions:It was crucial to assess the intellectual,emotional,social and cultural background of the target population prior to video production in order to integrate the key messages of the cartoon into everyday situations.Overall,our strategy for the development of the cartoon and its incorporation into a health education package proved successful,and we provide a summary of recommendations for the development of future educational videos based on our experiences in China.Franziska A Bieri Li-Ping Yuan Yue-Sheng Li Yong-Kang He Andrew Bedford Robert S Li Feng-Ying Guo Sheng-Ming Li Gail M Williams Donald P McManus Giovanna Raso Darren J Gray 2013Infectious Diseases of Poverty2013,2,1:2
9Acute surgical emergencies in inflammatory bowel disease显示文摘Dale F Berg Anil M Bahadursingh Donald L Kaminski Walter E Longo 2002The American Journal of Surgery2002,,:2
10Early surgery versus initial conservative treatment in patients with spontaneous supratentorial intracerebral haematomas in the International Surgical Trial in Intracerebral Haemorrhage (STICH): a randomised trial显示文摘A David Mendelow Barbara A Gregson Helen M Fernandes Gordon D Murray Graham M Teasdale D Terence Hope Abbas Karimi M Donald M Shaw David H Barer 20052005 (9457)2005,,9457:2
11Technical outcomes of sentinel-lymph-node resection and conventional axillary-lymph-node dissection in patients with clinically node-negative breast cancer: results from the NSABP B-32 randomised phase III trial显示文摘David N Krag Stewart J Anderson Thomas B Julian Ann M Brown Seth P Harlow Takamaru Ashikaga Donald L Weaver Barbara J Miller Lynne M Jalovec Thomas G Frazier R Dirk Noyes André Robidoux Hugh MC Scarth Denise M Mammolito David R McCready Eleftherios P Mamo 2007Lancet Oncology2007,,10:2
12Water partitioning in Mozzarella cheese and its relationship to cheese meltability 显示文摘DONALD J M 1999Dairy Sci1999,82,:2
13New font and arrow for national park service guide signs 显示文摘PHILIP M DONALD T 2004Transportation Research Record (n 1862)2004,,:1
14The convergent evolution of annual seed crop in agriculture显示文摘Donald C M Hamblin J 1968Adv Agron1968,36,:1
15The effects of timing jitter in sampling systems显示文摘Souders T M Donald R F Charles Hagwood 1990IEEE Transactions on Instrumentation and Measurement1990,39,1:1
16The breeding of crop ideotypes显示文摘 1968Euphytica1968,17,:1
17Exploratory bioavailability and pharmacokinetic studies of sulphadime-thoxine and ormetoprim in the penaeid shrimp, Penaeus vannamei 显示文摘Eric D P Donald V L Nicholas M 1995Aquaculture1995,130,:1
18A robust timing synchronization design in OFDM system-part I: lowmobility cases显示文摘YASAMIN M DONALD C C 2007IEEE Trans on Wireless Commum2007,6,12:1
19The Quality of Life (QOL) Research Movement: Past, Present, and Future显示文摘Sirgy M A C michalos A L Ferriss R Easterlin Donald Patrick William Pavot 2006Social Indicators Research2006,76,:1
20Effect of changes in syringe driver height on flow~ a small quanti- tative study显示文摘Donald A I Chinthamuneedi M P Spearritt D 2007Crit Care Resusc2007,9,2:1
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