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54篇 您的检索式:作者名="Ivan Lee"
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1Ubiquitylation of p62/sequestosome1 activates its autophagy receptor function and controls selective autophagy upon ubiquitin stress显示文摘在细胞的 ubiquitin (Ub ) 的改变动态平衡,作为 Ub 知道强调,展示并且影响处于多重条件的细胞的回答,然而,内在的机制不完全地被理解。这里,我们报导 autophagy 受体 p62/sequestosome-1 与结合酶, UBE2D2 和 UBE2D3 的 E2 Ub 交往。内长的 p62 在 Ub 动态平衡的 upregulation 期间经历 E2 依赖的 ubiquitylation,一个条件作为 Ub + 应力称为,那对由 bortezomib 的 Ub overexpression,热吃惊或延长 proteasomal 抑制内在,化学疗法的药。p62 的 Ubiquitylation 破坏 p62 的 UBA 领域的 dimerization,解放它的能力认出为选择 autophagy 的 polyubiquitylated 货物。我们进一步证明这机制可能为在 Ub + 压力条件之上的 autophagy 激活是批评的。机制的描述和在察觉到 Ub 应力并且控制选择 autophagy 的 p62 的规章的角色能帮助理解并且调制细胞的回答到许多内长、环境的挑战,潜在地对 autophagy 相关的病为治疗学的策略的发展打开一条新大街。Hong Peng Jiao Yang Guangyi Li Qing You Wen Han Tianrang Li Darning Gao Xiaoduo Xie Byung-Hoon Lee Juan Du Jian Hou Tao Zhang Hai Rao Ying Huang Qinrun Li Rong Zeng Lijian Hui Hongyan Wang Qin Xia Xuemin Zhang Yongning He Masaaki Komatsu Ivan Dikic Daniel Finley Ronggui Hu 2017Cell Research2017,27,5:9
2SARS-CoV-2 infects human neural progenitor cells and brain organoids显示文摘Dear Editor,Coronavirus disease 2019(COVID-19)caused by the novel severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)1 has resulted in over 13 million confirmed cases and more than 580,045 deaths across 218 countries and geographical regions as of July 16,2020.This novel coronavirus primarily causes respiratory illness with clinical manifestations largely resembling those of SARS.However,neurological symptoms including headache,anosmia,ageusia,confusion,seizure,and encephalopathy have also been frequently reported in COVID-19 patients.Bao-Zhong Zhang Hin Chu Shuo Han Huiping Shuai Jian Deng Ye-fan Hu Hua-rui Gong Andrew Chak-Yiu Lee Zijiao Zou Thomas Yau Wutian Wu Ivan Fan-Ngai Hung Jasper Fuk-Woo Chan Kwok-Yung Yuen Jian-Dong Huang 2020Cell Research2020,30,10:8
3ELISA快速测定小麦中硫丹及硫丹硫酸酯显示文摘研究应用酶联免疫方法,快速检测小麦中硫丹及硫丹硫酸酯。小麦经80%甲醇提取后,用PBS/T缓冲液稀释5倍后,酶联免疫方法直接测定。方法平均回收率为73.3%~88.8%,线性范围1.5μg/L^25μg/L,最低检测限0.4μg/L,变异系数<10.03%。经气相色谱/质谱联用方法验证,灵敏度、重现线和准确度均符合快速检测要求。该法具有快速、简便、低耗、易操作等特点。吕潇 聂燕 陈子雷 黎秀卿 李慧冬 李瑞菊 张红 万春燕 朱端卫 Lee Nanju A Shields Ross Kennedy Ivan R 2006中国粮油学报2006,21,5:6
4Emerging radiotherapy technologies and trends in nasopharyngeal cancer显示文摘AbTechnology has always driven advances in radiotherapy treatment.In this review,we describe the main technological advances in radiotherapy over the past decades for the treatment of nasopharyngeal cancer(NPC)and highlight some of the pressing issues and challenges that remain.We aim to identify emerging trends in radiation medicine.These include advances in personalized medicine and advanced imaging modalities,standardization of planning and delineation,assessment of treatment response and adaptive re-planning,impact of particle therapy,and role of artificial intelligence or automation in clinical care.In conclusion,we expect significant improvement in the therapeutic ratio of radiotherapy treatment for NPC over the next decade.Michelle Tseng Francis Ho Yiat Horng Leong Lea ChoungWong Ivan WK Tham Timothy Cheo Anne WM Lee 2020Cancer Communications2020,40,9:5
5茶叶中硫丹及硫丹硫酸酯的ELISA快速测定显示文摘研究应用酶联免疫方法,快速检测茶叶中硫丹及硫丹硫酸酯。茶叶提取后,不净化,用PBS缓冲液稀释500倍后,进行酶联免疫方法测定,方法平均回收率为86.6%-91.1%;经SPE净化后,回收率68.7%-123%。标准曲线IC50为2μg/L,线性范围1-10μg/L。直接提取法最低检测限2mg/kg,净化法为0.06mg/kg。经气相色谱/质谱联用方法验证,灵敏度、精密度和准确度均符合快速检测要求。该法具有快速、简便、低耗、易操作等特点。吕潇 任凤山 王文博 杜红霞 李慧冬 丁蕊艳 朱端卫 LEE Nanju A SHEILD Ross KENNEDY Ivan R 2006茶叶科学2006,26,2:5
6miR-203 induces oxaliplatin resistance in colorectal cancer cells by negatively regulating ATM kinase显示文摘Yunfei Zhou Guohui Wan Riccardo Spizzo Cristina Ivan Rohit Mathur Xiaoxiao Hu Xiangcang Ye Jia Lu Fan Fan Ling Xia George A. Calin Lee M. Ellis Xiongbin Lu 2014Molecular Oncology2014,,1:3
7轴突生长抑制因子DNA疫苗对大鼠中枢神经系统的影响(英文)显示文摘目的探讨轴突生长抑制因子DNA疫苗(pcDNA-NGIs)免疫是否会对中枢神经系统造成损害。方法以pcDNA-NGIs免疫成年Sprague-Dawley大鼠,免疫期间进行实验性自动免疫性脑髓鞘炎评分,同时观察实验动物的感觉运动功能和认知行为。结果以pcDNA-NGIs免疫的大鼠未出现实验性自动免疫性脑髓鞘炎症状。复合神经病学评分、粘附纸条清除试验和开放场地试验表明,pcDNA-NGIs免疫不会损害实验动物的感觉运动功能。另外,被动回避试验和主动回避试验证明,pcDNA-NGIs免疫不会引起学习和记忆障碍。结论pcDNA-NGIs免疫不会损害实验大鼠中枢神经系统。朱兴宝 Jasmine Lee Jill Wong Wan Loo Tan 冯忠堂 肖志成 Ivan Ng 2007中华神经外科疾病研究杂志2007,6,3:3
8Poststroke DNA immunization against neurite growth inhibitors is beneficial to the recovery from local cerebral ischemia in rats显示文摘BACKGROUND: Inhibitory signals, i.e. neurite growth inhibitors (NGIs), presenting on central nervous system (CNS) myelin have been shown to play a crucial role in inhibiting lesioned axonal sprouting and leading to less functional recovery. Vaccines targeting NGIs may provide multifactorial protection against brain insults by overcoming the inhibitory effects of these NGIs and boosting the body's immune repair mechanisms. OBJECTIVE: To evaluate the effect of poststroke DNA immunization against NGIs on the rehabilitation for sensorimotor function of rat models of local cerebral ischemia. DESIGN: Completely randomized grouping design, and controlled experiment. SETTING: Brain Injury Research Laboratory, Department of Neurosurgery, National Neuroscience Institute, Singapore. MATERIALS: Sixty adult male Sprague-Dawley rats ranging in age from 45 to 120 days and in weight from 180 to 250 grams were provided by Animal Center of Department of Anatomy, Faculty of Medicine, National University of Singapore. pcDNA3.1(+)-neurite growth inhibitors (pcDNA-NGIs) a gift was provided by Dr. Xiao from Department of Clinical Research, Singapore General Hospital, Singapore. METHODS: The experiment was carried out at Brain Injury Research Laboratory, Department of Neurosurgery, National Neuroscience Institute, Singapore from August 2003 to April 2005. ①The involved rats were randomized into 3 groups: pcDNA-NGIs group (group A), pcDNA3.1 (+) group (group B) and model group (group C), with 20 rats in each group. Left focal cerebral ischemia (FCI) was permanently induced through middle cerebral artery occlusion (MCAO) with the assistance of an operating microscope. Successful MCAO was determined by a 20% decrease to baseline in the ipsilateral cerebral blood flow. 100 μg of pcDNA-NGIs eluted in phosphate-buffered saline (PBS) was intramuscularly injected into the tibial muscle once a week after MCAO for 6 weeks in group A. As control, pcDNA3.1 (+) was also administrated in the same way in group B and nothing was administrated in group C. ② The modified neurological severity score (mNSS), a composite of motor, sensory, reflex and balance tests, was used to test the sensorimotor deficit. The mNSS was graded on a scale of 0–18, i.e. normal score was 0, maximal deficit score was 18, and 1 point was warded for the inability to perform the tasks or the lack of a tested reflex. ③ The newly generated axons of corticorubral projection were traced by stereotaxic guided injection of 100 g/L biotinylated dextran amine. Rats were sacrificed two weeks after tracing, and cryostat coronal sections of midbrains (30 μm) were reacted to BDA according to the manufacturer's instruction by the free-floating method. Images were captured on a DM RXA2 LEICA Microscope with a Spot Digital Camera system (Germany), and the numbers of labeled axons on the denervated side in four standard coronal sections including the red nucleus were manually quantified. MAIN OUTCOME MEASURES: ① The number of newly generated axons of corticorubral projection. ②The improvement in sensorimotor deficit. RESULTS: All the involved 60 rats entered the stage of final analysis. ① The number of newly generated axons of corticorubral projection of rats: Only ipsilateral axons of CRP were noted with little evidence of fibers crossing to the contralateral red nucleus in rats of groups B and C. More BDA-positive fibers crossing the midline and terminating in the contralateral red nucleus in appropriate target areas mirroring thenon-differentiated red nucleus were found in rats of group A. Quantitative analysis showed that BDA-labeled axons in the denervated side of rats in group A were more than those in group B (P < 0.05). ② Improvement in sensorimotor deficit of rats: At 2 weeks after immunization, significant improvement in sensorimotor deficit was found in rats of group A. There were significant differences of improvement in sensorimotor deficit of rats between group A and group B or group C at 12 and 14 weeks after immunization (P < 0.05). CONCLUSION: ① Poststroke DNA immunization against NGIs leads to increased sensorimotor recovery following FCI and compensatory newly growth of axons from corticorubral projection.Xingbao Zhu Jasmine Lee Jill Wong Wan Loo Tan Zhongtang Feng Tinghua Wang Zhicheng Xiao Ivan Ng 2007Neural Regeneration Research2007,2,2:3
9Robust superamphiphobic coatings with gradient and hierarchical architecture and excellent anti-flashover performances显示文摘Biomimetic superhydrophobic(SH)coatings have emerged as a promising alternative to traditional room temperature vulcanizing(RTV)silicone rubber coatings for improving the flashover strength of insulators.However,organic contamination occurs in outdoor applications and thus a superamphiphobic(SAP)surface is more desirable but not yet reported for improving flashover performance.Herein,we developed a novel anti-flashover technique by fabricating robust SAP coating with unique gradient and micro-nanoscale hierarchical architecture.The SAP coating was fabricated by sequentially spray-depositing a resin-based primer and a silica-based topcoat on substrates(i.e.,glass slides and insulators).The primer not only functions as an adhesive offering strong adhesion to the substrate but also offers a micromastoid-like structure facilitating the subsequent formation of hierarchical micro-nanostructure.The appropriate spraying pressure leads to a diffusion of the fluorocarbon-modified silica nanoparticles into the primer to form a unique gradient structure,by analogy to inserting bullets into a wood.These features render the SAP coating excellent robustness with strong abrasive resistance,excellent ultraviolet(UV)resistance,and excellent chemical and thermal stability.Pollution flashover property of the SAP coating was explored and compared with that of SH and RTV specimens,from which a novel organic-contamination model to evaluate the flashover performance was proposed.The coated SAP glass insulator demonstrated 42.9%pollution flashover voltage improvement than RTV-coated insulator.These stated unique features reveal the convincing potential of the present SAP coatings to be applied for not only outdoor transmission line insulators for antiflashover but also other fields for self-cleaning,anti-fouling,and anti-icing.Yi Xie Wei Xiong Shefiu Kareem Chuxiong Qiu Yongfei Hu Ivan PParkin Shengwu Wang Huayun Wang Junwu Chen Lee Li Zhi Chen Huajun Sun Xiujian Zhao 2022Nano Research2022,15,8:2
10轴突生长抑制因子DNA疫苗免疫促进脑缺血后神经功能恢复显示文摘目的为进一步证实突生长抑制因子DNA疫苗免疫对局部脑缺血后神经功能恢复的促进作用.方法采用永久性阻断SD大鼠大脑中动脉的方法制备左侧局部脑缺血模型;在中风前或中风后经腓肠肌注射轴突生长抑制因子DNA疫苗免疫动物,每周1次,共6周;分别采用改良神经病严重程度记分、被动逃避试验和悬臂迷宫试验评价中风后运动功能、认知行为和焦虑样情感的恢复.结果中风前或中风后进行轴突生长抑制因子DNA疫苗免疫,局部脑缺血后都出现明显的运动恢复.认知行为和焦虑样情感障碍则没有明显改善.结论中风前或中风后给予轴突生长抑制因子DNA疫苗免疫可促进脑缺血后的运动功能恢复.朱兴宝 Jasmine LEE Jill WONG 肖志成 范泉水 Ivan NG 2008昆明医学院学报2008,29,1:1
11Sinerable sialon power by reaction clay with carbon and nitrogen显示文摘Lee J G Ivan B 1979J Am Ceram Soc Bull1979,58,9:1
12The reduction of silica carbon and silicon carbide 显示文摘Patrick D M Lee J G Ivan B C 1979J Am Ceram Soc1979,62,34:1
13Immunity-based autonomous guided vehicles control 显示文摘Henry YK Lau Vicky WK Wong Ivan SK Lee 2007Applied Soft Computing2007,7,:1
14Nitric Oxide Scavenging by Red Blood Cell Microparticles and Cell-Free Hemoglobin as a Mechanism for the Red Cell Storage Lesion显示文摘Chenell Donadee Nicolaas J.H. Raat Tamir Kanias Jesús Tejero Janet S. Lee Eric E. Kelley Xuejun Zhao Chen Liu Hannah Reynolds Ivan Azarov Sheila Frizzell E. Michael Meyer Albert D. Donnenberg Lirong Qu Darrel Triulzi Daniel B. Kim-Shapiro Mark T. Gladwin 2011Circulation2011,,:1
15Functional characterization of key structural genes in rice flavonoid biosynthesis显示文摘Chun Hat Shih Hung Chu Lee Kwan Tang Wataru Sakamoto Masahiko Maekawa Ivan K. Chu Mingfu Wang Clive Lo 2008Planta2008,,6:1
16Prostate biopsy culture findings of men with CPPS do not differ from those of healthy controls 显示文摘Lee JC Muller CH Ivan R 2003J Urol2003,169,2:1
17Prostate biopsy culture findings of men with CPPS do not differ from those of healthy controls显示文摘Lee JC Muller CH Ivan R 2003J Urol2003,169,2:1
18Combustion of Propane with Pt and Rh Catalysts in a Meso-Scale Heat Recirculating Combustor显示文摘Teresa A. Wierzbicki Ivan C. Lee Ashwani K. Gupta 2014Applied Energy2014,,:1
19A rapid and sensitive chemiluminescence enzyme-linked immunosorbent assay for the determination of fumonisin B 1 in food samples显示文摘Ying Quan Yan Zhang Shuo Wang Nanju Lee Ivan R. Kennedy 2006Analytica Chimica Acta2006,,1:1
20Prostate biopsy culture findings of men with CPPS do not differ from those of healthy controls显示文摘Lee JC Muller CH Ivan R 2003J Urol2003,169,2:1
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