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2426篇 您的检索式:作者名="Kohn"
    题名 作者 年代 出处 被引量
1Notch signaling controls chondrocyte hypertrophy via indirect regulation of Sox9显示文摘RBPjk-dependent Notch signaling regulates both the onset of chondrocyte hypertrophy and the progression to terminal chondrocyte maturation during endochondral ossification. It has been suggested that Notch signaling can regulate Sox9 transcription, although how this occurs at the molecular level in chondrocytes and whether this transcriptional regulation mediates Notch control of chondrocyte hypertrophy and cartilage development is unknown or controversial. Here we have provided conclusive genetic evidence linking RBPjk-dependent Notch signaling to the regulation of Sox9 expression and chondrocyte hypertrophy by examining tissuespecific Rbpjk mutant(Prx1Cre;Rbpjkf/f), Rbpjk mutant/Sox9 haploinsufficient(Prx1Cre;Rbpjkf/f;Sox9f/1),and control embryos for alterations in SOX9 expression and chondrocyte hypertrophy during cartilage development. These studies demonstrate that Notch signaling regulates the onset of chondrocyte maturation in a SOX9-dependent manner, while Notch-mediated regulation of terminal chondrocyte maturation likely functions independently of SOX9. Furthermore, our in vitro molecular analyses of the Sox9 promoter and Notch-mediated regulation of Sox9 gene expression in chondrogenic cells identified the ability of Notch to induce Sox9 expression directly in the acute setting, but suppresses Sox9 transcription with prolonged Notch signaling that requires protein synthesis of secondary effectors.Anat Kohn Timothy P Rutkowski Zhaoyang Liu Anthony J Mirando Michael J Zuscik Regis J O'Keefe Matthew J Hilton 2015Bone Research2015,3,3:8
2碱性玄武岩中长石巨晶的结构水:红外光谱和核磁共振谱研究显示文摘运用傅立叶变换红外光谱技术 (FTIR,红外区和近红外区 )和质子魔角旋转核磁共振技术 (1 H MAS NMR)对来自安徽女山、江苏盘石山和河北汉诺坝新生代碱性玄武岩中的 4个歪长石巨晶进行了观察 ,结果显示 ,这些巨晶含有结构水 ,主要以 H2 O的形式存在 ,其中 3个样品的结构水含量 (H2 O)分别为 40 5μg/ g,915μg/ g和 36 5μg/ g。这些数据和文献中已有的资料表明 。夏群科 潘尤杰 陈道公 Kohn Simon 支霞臣 郭立鹤 程昊 吴元保 2000岩石学报2000,16,4:7
3Drug treatment of male fertility disorders显示文摘Drug treatment remains an active domain in the therapy of male fertility disorders. Although there are only a few conditions that allow causal treatment, rational approaches are possible in many cases. Best results are obtained in cases requiring an anti-inflammatory treatment and in patients with an impaired sperm transport. High-dosage administration of FSH is a promising new development, aimed particularly at improving the disturbed sperm structures. A careful diagnostic work-up with elucidation of the underlying disease is essential to achieve a successful therapy.Gerhard Haidl Frank-Michael Kohn Wolf-Bernhard Schill 2000Asian Journal of Andrology2000,2,2:4
4医用生物可吸收性聚合物的发展趋势显示文摘1引言由于可降解植入物并不需要用外科手术取出植入物,因此它在那些只需作暂时性植入的应用方面特别有用。缝合线、药物传送体系和小骨固定等代表着可降解聚合物的广泛研究应用范围。此外,使用可降解器件能够防止由于永久性植入物的生物稳定性而产生的长期安全问题。目前,大家一致公认,在许多情况下宁可使用可由天然组织取代的可降解暂时性植入物,而不使用一生中一直留在体内的生物稳定修补物。这一概念导致“相互作用”植入物设想的产生,这种植入物是故意设计让生长中的天然组织侵入的多孔植入物。Satish Pulapura Joachim KOHN 程定超 1992国外医学(生物医学工程分册)1992,15,5:4
5Guidelines for surgical treatment of gastroesophageal reflux disease显示文摘Dimitrios Stefanidis William W. Hope Geoffrey P. Kohn Patrick R. Reardon William S. Richardson Robert D. Fanelli 2010Surgical Endoscopy2010,,11:3
6A method to deliver patterned electrical impulses to Schwann cells cultured on an artificial axon显示文摘Information from the brain travels back and forth along peripheral nerves in the form of electrical impulses generated by neurons and these impulses have repetitive patterns. Schwann cells in peripheral nerves receive molecular signals from axons to coordinate the process of myelination. There is evidence, however,that non-molecular signals play an important role in myelination in the form of patterned electrical impulses generated by neuronal activity. The role of patterned electrical impulses has been investigated in the literature using co-cultures of neurons and myelinating cells. The co-culturing method, however, prevents the uncoupling of the direct effect of patterned electrical impulses on myelinating cells from the indirect effect mediated by neurons. To uncouple these effects and focus on the direct response of Schwann cells,we developed an in vitro model where an electroconductive carbon fiber acts as an artificial axon. The fiber provides only the biophysical characteristics of an axon but does not contribute any molecular signaling.In our 'suspended wire model', the carbon fiber is suspended in a liquid media supported by a 3D printed scaffold. Patterned electrical impulses are generated by an Arduino 101 microcontroller. In this study, we describe the technology needed to set-up and eventually replicate this model. We also report on our initial in vitro tests where we were able to document the adherence and ensheath of human Schwann cells to the carbon fiber in the presence of patterned electrical impulses(hSCs were purchased from ScienCell Research Laboratories, Carlsbad, CA, USA; ScienCell fulfills the ethic requirements, including donor's consent). This technology will likely make feasible to investigate the response of Schwann cells to patterned electrical impulses in the future.Antonio Merolli Yong Mao Gregory Voronin Joseph A.M.Steele N.Sanjeeva Murthy Joachim Kohn 2019Neural Regeneration Research2019,14,6:3
7Wnt and calcium signaling: β-Catenin-independent pathways显示文摘Aimee D. Kohn Randall T. Moon 2005Cell Calcium2005,,3:2
8Endoscopic Retrograde Cholangiopancreatography with Single-Balloon Enteroscopy Is Feasible in Patients with a Prior Roux-en-Y Anastomosis显示文摘Evan S. Dellon Geoffrey P. Kohn Douglas R. Morgan Ian S. Grimm 2009Digestive Diseases and Sciences2009,,8:2
9First order interpolation inequalities with weights显示文摘Caffarelli L Kohn R Nirenberg L 1984Compositio math1984,53,:2
10Arthroscopic Treatment of Chronically Painful Calcifying Tendinitis of the Supraspinatus Tendon显示文摘Romain Seil Heike Litzenburger Dieter Kohn Stefan Rupp 2006Arthroscopy: The Journal of Arthroscopic and Related Surgery2006,,5:2
11First order interpolation inequalities with weight 显示文摘Caffarelli L Kohn R Nirenberg L 1984Compositio Math1984,53,3:2
12POLIII-derived non-coding RNAs acting as scaffolds and decoys显示文摘A large variety of eukaryotic small structured POLIII-derived non-coding RNAs(ncRNAs)have been described in the past.However,for only few,e.g.7SL and H1/MRP families,cellular functions are well understood.For the vast majority of these transcripts,cellular functions remain unknown.Recent findings on the role ofY RNAs and other POLIII-derived ncRNAs suggest an evolutionarily conserved function of these ncRNAs in the assembly and function of ribonucleoprotein complexes(RNPs).These RNPs provide cellular‘machineries’,which are essential for guiding the fate and function of a variety of RNAs.In this review,we summarize current knowledge on the role of POLIII-derived ncRNAs in the assembly and function of RNPs.We propose that these ncRNAs serve as scaffolding factors that‘chaperone’RNA-binding proteins(RBPs)to form functional RNPs.In addition or associated with this role,some small ncRNAs act as molecular decoys impairing the RBP-guided control of RNA fate by competing with other RNA substrates.This suggests that POLIII-derived ncRNAs serve essential and conserved roles in the assembly of larger RNPs and thus the control of gene expression by indirectly guiding the fate of mRNAs and IncRNAs.HendrikTauber Stefan Huttelmaier Marcel Kohn 2019Journal of Molecular Cell Biology2019,11,10:2
13Stimulus dependence of neuronal correlation in primary visual cortex of the macaque 显示文摘Kohn A Smith MA 2005J Neurosci2005,25,14:1
14Efficient Bayesian inference for Gaussian copula regression models 显示文摘Pitt M Chan D Kohn R 2006Biometrika2006,93,3:1
15The microenvironment of the tumor - host interface 显示文摘Liotta LA Kohn EC 2001Nature2001,411,6835:1
16WNT and beta-catenin signalling:diseases and therapies显示文摘Moon RT Kohn AD De FerrariG V 2004Nat Rev Genet2004,5,9:1
17Nontoxic block copolymer nanospheres: Design and characterization 显示文摘Nardin C Bolikal D Kohn J 2004Langmuir2004,20,11:1
18SSRIs versusnon-SSRIs in posttraumatic stress disorder: an update with recommendations 显示文摘Asnis GM Kohn SR Henderson M 2004Drugs2004,64,4:1
19Phase Ⅲ study of weekly highdose infusional fluorouracil plus folinic acid with or without irinotecan in patients with metastatic colorectal cancer: European Organisation for Research and Treatment of Cancer Gastrointestinal Group study 40986 显示文摘Kohne CH van Cutsem E Wils J 2005J Clin Oncol2005,23,8:1
20Thyrocyles express a function- al toll - like receptor 3 : overexpression can be induced by viral in- fection and reversed by phenylmethimazole and is associated with Hashimoto autoimmune thyroiditis显示文摘Harii N Lewis C J Kohn ID 2005Mol Endocrinol2005,19,5:1
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