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6190篇 您的检索式:作者名="Peng Z"
    题名 作者 年代 出处 被引量
1Metal exposure and Alzheimer's pathogenesis.显示文摘Liu G Huang W Moir RD Vanderburg CR Lai B Peng Z Tanzi RE Rogers JT Huang X 2006中国生物学文摘2006,20,9:8
2Changes in the Bispectral Index in Response to Loss of Consciousness and No Somatic Movement to Nociceptive Stimuli in Elderly Patients显示文摘Ning Yang Yun Yue Jonalhan Z Pan Ming-Zhang Zuo Yu Shi Shu-Zhen Zhou Wen-Ping Peng Jian-Dong Gao 2016Chinese Medical Journal2016,,4:8
3Magnetic resonance evaluation of transplanted mesenchymal stem cells after myocardial infarction in swine显示文摘Objectives To trace and evaluate intracoronary transplanted mesenchymal stem cells(MSCs) labeled with superparamagnetic iron oxide(SPIO) by using magnetic resonance imaging(MRI) in a swine model of myocardial infarction (MI).Methods MSCs were transfected with a lentiviral vector carrying the gene encoding green fluorescent protein (GFP) and labeled in vitro with SPIO.Two weeks after MI, swine were randomized to intracoronary transplantation of dual -labeled MSCs(n = 10),MSCs-GFP(n = 10) and saline(n = 5).MRI examination was performed with a 1.5T clinical scanner at 24 hours,3 weeks and 8 weeks after cells transplantation. Signal intensity(SI) changes,cardiac function and MI size were measured using MRI.Correlation between MR findings and histomorphologic findings was also investigated. Results The labeling efficiency at a combination of 25μg Fe/ml SPIO and 0.8 pi/ml Lipofectamine 2000 reached 100%.SPIO labeling did not affect GFP fluorescence and dual-labeling did not affect cell proliferation(P>0.05). Multipotentiality was not affected especially for cardiomyocyte-like cells differentiation.Cardiac cell marker of a-MHC and actinin were positively expressed by immunofluorescence staining after induction.SI on T2 * WI decreased substantial- ly in the interventricular septum 24 hours after injection of MSCs.The intensity of hypo-intense signals appeared to increase throughout the later time points.Changes in SI at 24 hours,3 weeks and 8 weeks were 52.98%±10.74%,21.53%±5.40%and 6.23%±2.01%,respectively(P<0.01).DE-MRI demonstrated both dual-labeled MSCSs and MSCs-GFP could dramatically reduce the size of MI and improve cardiac function. Histological data revealed that prussian blue stain-positive cells were found mainly in the border zone which also showed green fluorescence but negative for macrophage marker(CD68).Gross pathologic examination revealed that engrafted MSCs dramatically reduce the extent of necrotic myocardium and promote the regeneration of new,contractile myocardium along the subendocardial surface of the MI. Conclusions MSCs could be efficiently and safely labeled with SPIO and GFP,and could be detected reproducibly and noninvasively in vivo using cardiac MRI.Intracoronary transplantation of dual-labeled MSCs could increase cardiac function and reduce the size of MI.KE Yang~1,PENG Chao-quan~1,XIANG Peng~1,ZHANG Cheng-xi~1, ZOU Li-yuan~1,WU Xiao~1,YA Gao~1,KANG Z huang~2,HE Ke-ke~2,LIU Jin-lai~1 (1.Department of Cardiology,The Third Affiliated Hospital, Sun Yat-sen University,Guangzhou 2.Department of Radiology, the Third Affiliated Hospital,Sun Yat-sen University, Guangzhou 5100630 3.Center for Stem Cell Biology and Tissue Engineering,Sun Yat-sen University,Guangzhou 5100120) 2011岭南心血管病杂志2011,17,S1:7
4血清netrin-1增加与缺血性脑卒中预后改善相关显示文摘先前的实验研究表明,血清netrin-1与缺血性脑卒中进展相关。进一步了解缺血性脑卒中患者中netrin-1的变化可能为缺血性脑卒中的预后评估提供新的思路。该研究旨在探讨血清netrin-1与缺血性脑卒中预后的关系。研究人员测定3346例中国急性缺血性脑卒中抗高血压试验(China antihypertensive trial in acute ischemic stroke,CATIS)中缺血性脑卒中患者基线血清netrin-1水平,所有患者均在脑卒中发病后3个月进行随访。主要观察指标是脑卒中发病后3个月内死亡和严重残疾(改良Rankin 量表评分≥3)。刘莉 叶鹏 Guo D Zhu Z Zhong C Peng H Wang A Xu T Peng Y Xu T Chen CS Li Q Ju Z Geng D Chen J Zhang Y He J 2019中华高血压杂志2019,27,5:6
5制备碳化钨功能梯度材料的液相迁移和方式的评述显示文摘自从WC-Co(FG WC-Co)梯度功能材料得到优异的耐磨性、断裂韧性和强度的组合,也提供了优异的工程性能,都超过了传统的均匀WC-Co材料。已经开发了许多生产FG WC-Co的工艺,其中几种已商品化。但是关于在WC-Co中如何形成梯度结构的基本原理在理解上还有相当大的分歧。根据最近大部分的研究,本文的作者们检验了制备FG WC-Co的工艺,发现大部分情况是通过液相迁移达到WC-Co中形成梯度结构,可用不同的技术诱发迁移。评述了几种有代表性的FG WC-Co工艺,并用液相迁移理论作解释。一种新工艺是用全烧结WC-Co渗碳来诱发液相迁移。Peng Fan Fang Z Z Guo Jun 2013热处理技术与装备2013,34,6:4
6A study of active power filters using quad-series voltage-source PWM converters for harmonic compensation显示文摘Peng F Z Akagi H Nabae A 1990IEEE Transactions on Power Electronics1990,5,1:2
7Plant tissue-based chemiluminescence flow biosensor for urea显示文摘Qin W Zhang Z J Peng Y Y 2000Anal Chim Acta2000,407,12:2
8Tetrapod -shaped ZnO whisker and its composites 显示文摘ZHOU Z PENG W KE S 1999J Materials Processing Technology1999,8990,:2
9Pycnogenol inhibits tumor necrosis factoralpha-induced nuclear factor kappa B activation and adhesion molecule expression in human vascular endothelial cells 显示文摘Peng Q Wei Z Lau BH 2000Cell Mol Life Sci2000,57,5:2
10Theoretical studies on molecular structure and vibrational spectra of copper phthalocyanine 显示文摘LID C PENG Z H 2005Vibrational Spectroscopy2005,39,2:1
11Performance of a combined system of ponds and constructed wetlands for wnstewater reclamation and reuse显示文摘Wang L Peng J F Wang B Z 2005Water Sci Technol2005,51,:1
12Generalized instantaneous reactive power theory for three-phase power systems显示文摘Peng F Z Lai J S 19961EEE Transactions on Instrumentation and Measurement1996,45,1:1
13Reaction of N-methyl-2-pyrrolidinone with carbon disulfide显示文摘Zong Z M Peng Y L Qin Z H 2000Energy Fuels2000,14,3:1
14Cross-talk between epidermal growth factor receptor and hypoxia-inducible factor-1 alpha signal pathways increases resistance to apoptosis by up-regulating survivin gene expression显示文摘 Karna P Cao Z 2006J Biol Chem2006,281,25:1
15Structural and PL Properties of Cu-doped ZnO Films显示文摘Peng X P Xu J Z Zang H 2008Journal of Luminescence2008,128,:1
16Novel MMC Microstructure with Tailored Distribution of the Reinforcing Phase 显示文摘Peng H X Fan Z Evans J R G 2001Journal of Microscopy2001,201,:1
17A potential immunotherapy approach: Mucosal immunization with an IL-13 peptide-based virus- like particle vaccine in a mouse asthma model 显示文摘Ma Y Ma AG Peng Z 2007Vaccine2007,25,47:1
18Regeneration of high-performance activated carbon from spent catalyst: Optimization using response surface methodology 显示文摘ZHANG Z Y PENG J H QU W W 2009Journal of the Taiwan Institute of Chemical Engineers2009,,40:1
19EGFP expres sion in goat mammary epithelial cells显示文摘Zheng Y M An Z X Peng X R 2006Chin J Agri Biotechnol2006,3,1:1
20Chromium adsorption by aligned carbon nanotubes supported ceria nanoparticles 显示文摘Di Z C Ding J Peng X J 2006Chemosphere2006,62,5:1
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