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203篇 您的检索式:作者名="Keith A D"
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1Dynamic chromatin states in human ES cells reveal potential regulatory sequences and genes involved in pluripotency显示文摘Pluripotency,一个细胞的能力区分并且产生所有胚胎的系,定义象胚胎的茎(ES ) 那样的哺乳动物的细胞类型的一个小数字细胞。当它通常被保持了时,那 pluripotency 是 transcriptional 的产品激活并且维持关键干细胞基因的表达式的规章的网络,积累的证据在建立并且保卫 ES 房间的 pluripotency 为 epigenetic 进程正在指向一个关键角色,象维持区分的房间类型的身份一样。以便更好在 pluripotency 理解 epigenetic 机制的角色,我们检验了在经历区别进一个 mesendodermal 系的人的 ES 房间(hESCs ) 染色体宽的染色质修正的动力学。我们发现在倡导者的染色质修正在区别期间仍然保持大部分不变,除了在在在 H3K27 的 acetylation 和 methylation 之间的一个动态开关标记在基因表示的激活和 silencing 之间的转变的倡导者的一个小数字,建议在在大多数差别上的房间命运承诺的一个层次表示了基因。我们也在 50 000 潜在的 enhancers 上印射,并且在染色质修正,特别 H3K4me1 和 H3K27ac 观察了大得多的动力学,它与他们的潜在的目标基因的表示相关。这些 enhancers 的进一步的分析揭示了 pluripotency 和可以在 hESCs 授与发展胜任的一个平衡状态的一口染色质签名陈述语气的潜在地关键的 transcriptional 管理者。我们的结果提供在定义 enhancers 和 pluripotency 支持染色质修正的角色的新证据。R David Hawkins Gary C Hon Chuhu Yang Jessica E Antosiewicz-Bourget Leonard K Lee Que-Minh Ngo Sarit Klugman Keith A Ching Lee E Edsall Zhen Ye Samantha Kuan Pengzhi Yu Hui Liu Xinmin Zhang Roland D Green Victor V Lobanenkov Ron Stewart James A Thomson Bing Ren 2011Cell Research2011,21,10:6
2Neuromuscular scoliosis and pelvic fixation in 2015: Where do we stand?显示文摘Neuromuscular scoliosis is a challenging problem to treat in a heterogeneous patient population. When thedecision is made for surgery the surgeon must select a technique employed to correct the curve and achieve the goals of surgery, namely a straight spine over a level pelvis. Pre-operatively the surgeon must ask if pelvic fixation is worth the extra complications and infection risk it introduces to an already compromised host. Since the advent of posterior spinal fusion the technology used for instrumentation has changed drastically. However, many of the common problems seen with the unit rod decades ago we are still dealing with today with pedicle screw technology. Screw cut out, pseudoarthrosis, non-union, prominent hardware, wound complications, and infection are all possible complications when extending a spinal fusion construct to the pelvis in a neuromuscular scoliosis patient. Additionally, placing pelvic fixation in a neuromuscular patient results in extra blood loss, greater surgical time, more extensive dissection with creation of a deep dead space, and an incision that extends close to the rectum in patients who are commonly incontinent. Balancing the risk of placing pelvic fixation when the benefit, some may argue, is limited in non-ambulating patients is difficult when the literature is so mottled. Despite frequent advancements in technology issues with neuromuscular scoliosis remain the same and in the next 10 years we must do what we can to make safe neuromuscular spine surgery a reality.Jason B Anari David A Spiegel Keith D Baldwin 2015World Journal of Orthopedics2015,6,8:2
3Effects of Ionic Strength, Temperature, and pH on Degradation of Selected Antibiotics显示文摘Loftin Keith A Adams Craig D Meyer Michael T Surampalli Rao 2008Journal of Environmental Quality2008,,2:2
4Induction of a high incidence of lung tumors in C57BL/6 mice with multiple ethyl carbamate injections显示文摘York E Miller Lori D Dwyer-Nield Robert L Keith Mysan Le Wilbur A Franklin Alvin M Malkinson 2003Cancer Letters2003,,2:2
5Lymphoepithelial cysts and cystic lymphangiomas: Underrecognized benign cystic lesions of the pancreas显示文摘AIM: To identify their diagnostic and prognostic clinical characteristics in a large series.METHODS: Retrospective review of clinicopathologic and imaging characteristics of patients diagnosed with lymphoepithelial cysts and cystic lymphangiomas of the pancreas at Massachusetts General Hospital.RESULTS: Twelve patients were identified between 1/1/1997 and 8/1/2007. Their median age was 55.5 years(range 19-78 years), and 6 were females. The le-sion was incidentally discovered in half of the patients.Contrast enhanced computed tomography demonstrat-ed that the cysts had thin walls, without calcifications, pancreatic duct dilation or pancreatic parenchyma inva-sion. Endoscopic ultrasound with fine needle aspiration(EUS/FNA) confirmed the diagnosis of a lymphoepithe-lial cyst in 3 patients, one of whom was spared an op-eration and continues to do well after 6 years. Eleven patients had a resection: 3 pancreaticoduodenecto-mies, 7 distal pancreatectomies, and 1 enucleation. The median size of the cysts was 3 cm(range 2-20 cm). At a median follow-up of 57 mo no recurrences or other pancreas-related conditions occurred.CONCLUSION: Lymphoepithelial cysts and cystic lymphangiomas of the pancreas can be diagnosed with a combination of contrast-enhanced computed tomog-raphy scans and EUS/FNA. If the lesion is asymptom-atic, an operation might be avoided.Ioannis T Konstantinidis Avinash Kambadakone Onofrio A Catalano Dushyant V Sahani Vikram Deshpe David G Forcione Jennifer A Wargo Carlos Fernandez-del Castillo Keith D Lillemoe Andrew L Warshaw Cristina R Ferrone 2014World Journal of Gastrointestinal Surgery2014,6,7:2
6Analytical methods for detection of selected estrogenic compounds in aqueous mixtures 显示文摘Snyder S A Keith T L Verbrugge D A 1999Environ Sci Technol1999,33,16:2
7Coronary artery bypass graft surgery versus percutaneous coronary intervention in patients with three-vessel disease and left main coronary disease: 5-year follow-up of the randomised, clinical SYNTAX trial显示文摘Friedrich W Mohr Marie-Claude Morice A Pieter Kappetein Ted E Feldman Elisabeth St?hle Antonio Colombo Michael J Mack David R Holmes Marie-angèle Morel Nic Van Dyck Vicki M Houle Keith D Dawkins Patrick W Serruys 2013The Lancet . 2013 (9867)2013,,9867:2
8Toxoplasma gondii:a protozoan for the nineties显示文摘Keith A Jean D 1993Infect Immun1993,61,4:1
9Toxoplasma gondii:a protozoan for the nineties显示文摘Keith A Jean D 1993Infect Immun1993,61,4:1
10Solar cell efficiency ta-bles(version 41)显示文摘Martin A Green Keith Emery Yoshihiro Hishikawa Wil-helm Warta and Ewan D Dunlop 0,,:1
11Total synthesis of halichondrin B and norhalichondrin B 显示文摘Thomas D A Keith R B Francis G F J Am Chem Soc t992 114 (8)0,3162,:1
12Geomechanical modeling for CO2 storage in Nisku aquifer in Wabamun Lake area in Canada显示文摘GOODARZI S SETTARI A KEITH D 2012International Journal of Greenhouse Gas Control2012,10,10:1
13Forecasting for inventory control with exponential smoothing显示文摘Snyder R D Koehlerb A B Keith Ordc J 2002International Journal of Forecasting2002,18,:1
14Frequent nonreciprocal translocations in the amphidiploid genome of oilseed rape (Brassica napus)显示文摘Sharpe A G Pakin I A P Keith D J 1995Genome1995,38,:1
15Spatial and temporal distribution of coloured dissolved organic matter (CDOM) in Narragansett Bay, Rhode Island: implications for phytoplankton in coastal waters显示文摘Keith D J Yoder J A Freeman S A 2002Estuar Coast Shelf S2002,55,5:1
16Toxoplasma gondii:a protozoan for the nineties显示文摘Keith A Jean D 1993Infect Immun1993,61,4:1
17The origin, classification and modelling of sand hanks and ridges显示文摘Keith R D David A H 1999Continental Shelf Research1999,19,10:1
18Characterization of polyploid wheat genomic diversity using a high-density 90 000 single nucleotide polymorphism array 显示文摘Wang SC Debbie W Kerrie F Alexandra A Shiaoman C Bevan EH Marco M Silvio S Sara GM Luigi C Anna MM Alex W Stuart S Gary B Ralf W Joerg P International Wheat Genome Sequencing Consortium Morten L Diane M Rudi A Rudy D Gina BG Abraham K Alina RA Catherine F Jerome S Michele M Curtis P Luo MC Jan DMM Jorge D Martin G Roberto T Cindy L Ivan M Colin C Keith JE Matthew H Eduard A 2014Plant Biotechnol J2014,12,:1
19Identification of the A and C genomes of amphidiploid Brassica napus (oilseed rape) 显示文摘Parkin I A P Sharpe A G Keith D J 1995Genome1995,38,6:1
20Inhibition of bcl-2 with antisense oligonucleotides induces apoptosis and increases the sensitivity of AML blasts to Ara-c显示文摘 Bradburg D A Zhu Y M 1995Leukemia1995,9,1:1
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