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271篇 您的检索式:作者名="Michael G W"
    题名 作者 年代 出处 被引量
1基因组和转录组学分析WHOⅡ/Ⅲ级大脑弥漫性胶质瘤的分子分型有助于患者的预后分层显示文摘将大脑胶质瘤在组织学分类和临床病理上分出Ⅱ级和Ⅲ级,这对WHO而言是一个重大的挑战。本文作者设想利用大规模基因组和转录组学分析是否能分出更为明确的不同预后类型。作者基于微阵列的基因组和转录组方法分析了137例原发大脑胶质瘤,病例来自一个前瞻性的德国胶质瘤网( German Glioma Network),其中包括61例WHO II级和76例WHO III级的肿瘤患者。用综合生物信息学分析确定分子亚型,然后将其与组织学、分子生物标记和患者预后相联系,分子生物标志物包括异柠檬酸脱氢酶1或2( IDH1/2),1p/19q联合缺失和端粒酶逆转录酶(TERT)基因启动子突变。通过基因组分析将其分为5个的胶质瘤组,包括3个IDH1/2突变型和2个IDH1/2野生型。通过表达谱分析发现8个不同的转录组(5个IDH1/2突变型,3个IDH1/2野生型),它们与基因组只有部分关联。结合DNA为基础的分子分层和临床预后划分为3个主要预后组,他们有着特异的基因组突变。 IDH1/2突变和1p/19q染色体联合缺失的患者预后最好。 IDH1/2野生型胶质瘤和类似胶质母细胞瘤基因组变异[包括7q染色体获得(+7q),10q染色体缺失(-10q),TERT启动子突变和癌基因扩增]的患者预后最差。IDH1/2突变但1p/19q染色体正常的患者(主要是星形细胞瘤)和IDH1/2野生型,但没有+7q/-10q 基因型及 TERT启动子突变的胶质瘤患者处于中间位的生存期。这种分子分层将患者分为不同的预后组比组织学分类更好。加入基因组分类的基因表达谱分析并不能更进一步促进预后分层。Michael W Ruthild G Edith W 陈达阳 王行富 2015临床与实验病理学杂志2015,31,7:9
2Nat Genet:单基因突变导致过敏性皮炎的发生显示文摘最近,研究者们鉴定出了一类导致神经性皮炎发生的关键基因突变:CARDll。来自美国NIH过敏与传染病研究所的研究者们通过对四个没有血缘关系的患病家庭进行分析,发现了这一导致疾病产生的基因、Chi A Ma, Yuan Zhang, Michael A Weinreich, Jonathan J Lyons, Celeste G Nelson, Thomas DiMaggio, Kelly D Stone, Joshua D Milner Jeffrey R Stinson, Elisa Ruffo, Batsukh Dorjbal, Swadhinya Arjunaraja, Kelsey Voss, Andrew L Snow Jordan K Abbott, Pia J Hauk, Paul R Reynolds, Erwin W Gelfand Elisa Ruffo Salomé Glauzy, Natsuko Yamakawa, Eric Meffre Jennifer Stoddard, Julie Niemela, Sergio D Rosenzweig Yu Zhang, Helen F Matthews Joshua J McElwee Nina Jones Alejandro Palma, Matías Oleastro, Emma Prieto, Andrea R Bernasconi, Geronimo Dubra, Silvia Danielian, Jonathan Zaiat, Marcelo A Marti Brian Kim Megan A Cooper Neil Romberg 2017现代生物医学进展2017,17,27:3
3Fondaparinux预防老年急性内科患者发生静脉血栓形成的效果与安全性:随机安慰剂对照研究显示文摘目的:观察 Fondaparinux 对具有中高度静脉血栓发生危险的老年急性内科住院患者的抗凝效果与安全性。设计:双盲随机安慰剂对照研究。背景:8个国家的35个中心。参与者:849例≥60岁内科患者,住院原因分别为充血性心力衰竭、慢性肺病合并急性呼吸系统疾患、急性炎症性或感染性疾病,预期至少住院4天以上。干预:2.5 mg Fondaparinux 或安慰剂,每天1次皮下注射,持续6~14天。观察指标:主要指标为静脉血栓形成(治疗后15天内采用双侧静脉造影检查)及有症状的静脉血栓;次要指标为死亡与出血。患者随访时间为1个月。结果:Fondaparinux 治疗组425例患者和安慰剂组414例患者接受了安全性分析(10例未治疗)。644例患者(75.9%)可接受主要指标分析。静脉血栓检出率在 Fondaparinux 治疗组为5.6%(18/321),安慰剂组为10.5%(34/323),相对危险减少46.7%(95% CI 7.7%~69.3%)。安慰剂组5例患者发生有症状的静脉血栓,Fondaparinux治疗组无患者发生有症状的静脉血栓(P=0.029)。两组均有1例(0.2%)患者发生严重出血。随访结束时,安慰剂组、Fondaparinux 治疗组分别死亡25(6.0%)、14(3.3%)例患者。结论:Fondaparinux 可有效预防急性内科老年患者无症状性及有症状的静脉血栓。严重出血几率两组相似。Alexander T Cohen Bruce L Davidson Alexander S Gallus Michael R Lassen Martin H Prins Witold Tomkowski Alexander G G Turpie Jan F M Egberts Anthonie W A Lensing 石汉平(译) 王深明(校) 2006英国医学杂志中文版2006,9,5:3
4Diagnostic accuracy of tests for Helicobacter pylori in an Alaska Native population显示文摘AIM:To evaluate the accuracy of two non-invasivetests in a population of Alaska Native persons. Highrates of Helico bacter pylori(H. pylori) infection,H. pylori treatment failure,and gastric cancer in this population necessitate documentation of infection status atmultiple time points over a patient's life.METHODS:In 280 patients undergoing endoscopy,H. pylori was diagnosed by culture,histology,rapidurease test,13C urea breath test(UBT) ,and immuno-globulin G antibodies to H. pylori in serum. The performances of 13C-UBT and antibody test were compared to a gold standard defined by a positive H. pylori testby culture or,in case of a negative culture result,bypositive histology and a positive rapid urease test.RESULTS:The sensitivity and specificity of the 13C-UBT were 93% and 88%,respectively,relative to thegold standard. The antibody test had an equivalents ensitivity of 93% with a reduced specificity of 68%.The false positive results for the antibody test were as-sociated with previous treatment for an H. pylori infection [relative risk(RR) = 2.8]. High levels of antibodiesto H. pylori were associated with chronic gastritis and male gender,while high scores in the 13C-UBT testwere associated with older age and with the H. pyloribacteria load on histological examination(RR = 4.4) .CONCLUSION:The 13C-UBT out performed the anti-body test for H. pylori and could be used when a non-invasive test is clinically necessary to document treatment out come or when monitoring for reinfection.Dana L Bruden Michael G Bruce Karen M Miernyk Julie Morris Debby Hurlburt Thomas W Hennessy Helen Peters Frank Sacco Alan J Parkinson Brian J McMahon 2011World Journal of Gastroenterology2011,17,42:3
522-gauge core vs 22-gauge aspiration needle for endoscopic ultrasound-guided sampling of abdominal masses显示文摘AIM To compare the aspiration needle(AN) and core biopsy needle(PC) in endoscopic ultrasound-guided fine needle aspiration(EUS-FNA) of abdominal masses.METHODS Consecutive patients referred for EUS-FNA were included in this prospective single-center trial. Each patient underwent a puncture of the lesion with both standard 22-gauge(G) AN(Echo Tip Ultra; Cook Medical, Bloomington, Indiana, United States) and the novel 22 G PC(Echo Tip Pro Core; Cook Medical, Bloomington, Indiana, United States) in a randomized fashion; histology was attempted in the PC group only. The main study endpoint was the overall diagnostic accuracy, including the contribution of histology to the final diagnosis. Secondary outcome measures included material adequacy, number of needle passes, and complications.RESULTS Fifty six consecutive patients(29 men; mean age 68 years) with pancreatic lesions(n = 38), lymphadenopathy(n = 13), submucosal tumors(n = 4), or others lesions(n = 1) underwent EUS-FNA using both of the needles in a randomized order. AN and PC reached similar overall results for diagnostic accuracy(AN: 88.9 vs PC: 96.1, P = 0.25), specimen adequacy(AN: 96.4% vs PC: 91.1%, P = 0.38), mean number of passes(AN: 1.5 vs PC: 1.7, P = 0.14), mean cellularity score(AN: 1.7 vs PC: 1.1, P = 0.058), and complications(none). A diagnosis on the basis of histology was achieved in the PC group in 36(64.3%) patients, and in 2 of those as the sole modality. In patients with available histology the mean cellularity score was higher for AN(AN: 1.7 vs PC: 1.0, P = 0.034); no other differences were of statistical significance.CONCLUSION Both needles achieved high overall diagnostic yields and similar performance characteristics for cytological diagnosis; histological analysis was only possible in 2/3 of cases with the new needle.William Sterlacci Athanasios D Sioulas Lothar Veits Pervin G?nüllü Guido Schachschal Stefan Groth Mario Anders Christos K Kontos Theodoros Topalidis Andrea Hinsch Michael Vieth Thomas R?sch Ulrike W Denzer 2016World Journal of Gastroenterology2016,22,39:2
6Prognostically relevant gene signatures of high-grade serous ovarian carcinoma显示文摘Verhaak Roel G W Tamayo Pablo Yang Ji-Yeon Hubbard Diana Zhang Hailei Creighton Chad J Fereday Sian Lawrence Michael Carter Scott L Mermel Craig H Kostic Aleksandar D Etemadmoghadam Dariush Saksena Gordon Cibulskis Kristian Duraisamy Sekhar 2013Journal of Clinical Investigation2013,,1:2
72009年南极冰穹A的双色天光背景统计和分析显示文摘天光背景是天文台址的一个重要指标。利用2009年位于南极冰穹A的CSTAR望远镜两个波段的观测数据,对南极冰穹A的天光背景进行了统计和分析。结果表明约74%的g波段天光背景的ADU值小于每像素100/s;90.5%的r波段的天光背景的ADU值小于每像素100/s。在不考虑大气消光的情况下,定标后的结果为2009年冰穹A的观测数据中天光背景亮度的中值:g波段为19.9 mag/arcsec2,r波段为20.1 mag/arcsec2。宗伟凯 付建宁 牛家树 Ashley Michael C B 宫雪非 Lawrence J S 刘强 Luong-Van Daniel Pennypacker C R Storey John W V 王灵芝 王力帆 杨惠根 袁祥岩 York Donald G 朱镇熹 2014天文研究与技术2014,11,1:2
8Phenotypic and genotypic differentiation of porcine Salmonella enterica sub spenterica serovar derby isolates显示文摘Michael G B Cardoso M Rabsch W 2006Vet Microbiol2006,118,34:1
9The insulin receptor changes conformation in unforeseen ways on ligand binding:sharpening the picture of insulin receptor activation显示文摘Ward Colin W Menting John G Lawrence Michael C 2013Bioessays2013,35,11:1
10Magnetic resonance arthrography of the hip in femoroacetabular impingement : Technique and findings 显示文摘Stefan W Michael L Reinhold G 2005Oper Tech Orthop2005,15,:1
11Dietary conjugated linoleic acid influnces the immune response of young and old C57BL/6NCrIBR mice显示文摘Michael G H Sung N H Dayong W 1999Nutrition1999,129,:1
12Heminested multiplex RT- PCR for detection and differentiation of Norwalk-like virus genogroups land 2 in fecal samples显示文摘Lilly K W Y Michael G C 2001J Clin Microbiol2001,39,:1
13Headway on urban streets: observational data and an intervention to decrease tailgating显示文摘MICHAEL P G LEEMING F C DWYER W O 2000Transporta- tion Research Part F2000,3,2:1
14The Phase Transformations in Starch During Gelatiniza- tion:a Liquid Crystalline Approach 显示文摘THOMAS A W MICHAEL J G BEMARD U K 2000CarbohydrateResearch2000,328,2:1
15Reliability Evaluation of Plastic Encapsulated Parts显示文摘LEONARD W MICHAEL G 1993IEEE Transaction on Reliability1993,42,4:1
16Application oftransient infrared and near infrared spectroscopy totransition metal complex excited states and inter-mediates显示文摘Jennifer M B Michael W G Jon R S 2007Coord Chem Rev2007,251,:1
17Cysteine protease gene expression and proteolytic activity during senescence of Alstroemeria petals显示文摘Carol W Michael K L Gareth G 2002Journal of Experimental Botany2002,53,:1
18Left ventricular mass reliability of m-mode and 2-dimensional echocardiographic formulas显示文摘SAUL G M HUGH E M MICHAEL J W 2002Hypertension2002,40,:1
19Generalized cross-validation as a method for choosing agood Ridge parameter显示文摘GOLUB G H MICHAEL H GRACE W 1979Technometrocs1979,21,2:1
20Plasma calcitonin gene-related peptide is increased prior to obesity,and sensory nerve desensitization by capsaicin improves oral glucose tolerance in obese Zucker rats显示文摘Dorte X G Anker J H Michael W 2005Eur J Endocrinol2005,153,96:1
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