|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | 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 |
| 2 | Poststroke 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 | 2007 | Neural Regeneration Research2007，2，2： | 3 |
| 3 | Risk stratification in symptomatic intracranial atherosclerotic disease with conventional vascular risk factors and cerebral haemodynamics显示文摘Background and purpose Symptomatic intracranial atherosclerotic stenosis(sICAS)is associated with a considerable risk of recurrent stroke despite contemporarily optimal medical treatment.Severity of luminal stenosis in sICAS and its haemodynamic significance quantified with computational fluid dynamics(CFD)models were associated with the risk of stroke recurrence.We aimed to develop and compare stroke risk prediction nomograms in sICAS,based on vascular risk factors and these metrics.Methods Patients with 50%-99%sICAS confirmed in CT angiography(CTA)were enrolled.Conventional vascular risk factors were collected.Severity of luminal stenosis in sICAS was dichotomised as moderate(50%-69%)and severe(70%-99%).Translesional pressure ratio(PR)and wall shear stress ratio(WSSR)were quantified via CTA-based CFD modelling;the haemodynamic status of sICAS was classified as normal(normal PR&WSSR),intermediate(otherwise)and abnormal(abnormal PR&WSSR).All patients received guideline-recommended medical treatment.We developed and compared performance of nomograms composed of these variables and independent predictors identified in multivariate logistic regression,in predicting the primary outcome,recurrent ischaemic stroke in the same territory(SIT)within 1 year.Results Among 245 sICAS patients,20(8.2%)had SIT.The D2H2A nomogram,incorporating diabetes,dyslipidaemia,haemodynamic status of sICAS,hypertension and age≥50 years,showed good calibration(P for Hosmer-Lemeshow test=0.560)and discrimination(C-statistic 0.73,95%CI 0.60 to 0.85).It also had better performance in risk reclassification and provided larger net benefits in decision curve analysis,compared with nomograms composed of conventional vascular risk factors only,and plus the severity of luminal stenosis in sICAS.Sensitivity analysis in patients with anterior-circulation sICAS showed similar results.Conclusions The D2H2A nomogram,incorporating conventional vascular risk factors and the haemodynamic significance of sICAS as assessed in CFD models,could be a useful tool to stratify sICAS patients for the risk of recurrent stroke under contemporarily optimal medical treatment. | Xuan Tian Hui Fang Linfang Lan Hing Lung Ip Jill Abrigo Haipeng Liu Lina Zheng Florence S Y Fan Sze Ho Ma Bonaventure Ip Bo Song Yuming Xu Jingwei Li Bing Zhang Yun Xu Yannie O Y Soo Vincent Mok Ka Sing Wong Thomas W Leung Xinyi Leng | 2023 | Stroke & Vascular Neurology2023，8，1： | 2 |
| 4 | 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 |
| 5 | Non-alcoholic fatty liver disease: Spectral patterns observed from an in vivo phosphorus magnetic resonance spectroscopy study显示文摘 | Jill M. Abrigo Jiayun Shen Vincent W.-S. Wong David K.-W. Yeung Grace L.-H. Wong Angel M.-L. Chim Anthony W.-H. Chan Paul C.-L. Choi Francis K.-L. Chan Henry L.-Y. Chan Winnie C.-W. Chu | 2013 | Journal of Hepatology2013，，： | 1 |
| 6 | The association between serum urate levels and arterial stiffness/endothelial function in stroke survivors显示文摘 | Faisel Khan Jacob George Kenneth Wong Stephen McSwiggan Allan D. Struthers Jill J.F. Belch | 2008 | Atherosclerosis2008，，2： | 1 |
| 7 | 中风前抗轴突生长抑制因子DNA免疫促进脑缺血后神经再生(英文)显示文摘目的为了澄清中风前抗轴突生长抑制因子DNA免疫对局部脑缺血神经再生的促进作用。方法经腓肠肌注射抗轴突生长抑制因子DNA疫苗免疫动物,每周一次,共6w;血清中检测出相关抗体后,采用永久性阻断大脑中动脉的方法制备左侧局部脑缺血模型,通过立体定向脑内注射生物素化葡聚糖胺(BDA)追踪皮质红核束的新生轴索。结果中风前接受抗轴突生长抑制因子DNA免疫,局部脑缺血后皮质红核束的代偿性新生轴索明显增多。结论中风前抗轴突生长抑制因子DNA免疫可提高永久性局部脑缺血后的神经再生。 | 朱兴宝 Jasmine Lee Jill Wong Wan Loo Tan 王廷华 冯忠堂 Xiao Zhicheng Ivan Ng | 2008 | 中华神经外科疾病研究杂志2008，7，1： | 1 |
| 8 | Apoptosis and traumatic brain injury显示文摘 | Jill Wong Ng Wai Hoe Feng Zhiwei Ivan Ng | 2005 | Neurocritical Care2005，，2： | 1 |
| 9 | 中风后抗轴突生长抑制因子DNA免疫促进脑缺血功能恢复显示文摘目的探讨中风后抗轴突生长抑制因子DNA免疫对脑缺血神经功能康复的促进作用。方法通过永久性阻断大脑中动脉诱导左侧局部脑缺血后,经腓肠肌注射抗轴突生长抑制因子DNA疫苗免疫动物,每周一次、共6周;分别采用改良的神经病严重程度记分、被动逃避试验和悬臂迷宫试验来评价运动功能、认知行为和焦虑样情感的恢复。结果中风后接受抗轴突生长抑制因子DNA免疫,局部脑缺血后出现明显的运动功能恢复,但是认知行为和焦虑样情感障碍则没有明显改善。结论中风后抗轴突生长抑制因子DNA免疫可促进脑缺血后的运动功能恢复。 | 朱兴宝 Jasmine Lee Jill Wong Wan Loo Tan 王廷华 冯忠堂 Xiao Zhicheng Ivan Ng | 2007 | 西南军医2007，9，4： | 0 |
| 10 | Pre-stroke DNA immunization against neurite growth inhibitors is beneficial to the recovery from focal 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 immune repair mechanisms of body. OBJECTIVE: To evaluate the effect of pre-stroke DNA immunization against NGIs on the rehabilitation for sensorimotor function of rat models of focal cerebral ischemia. DESIGN: A completely randomized 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 body mass from 180 to 250 g were provided by the 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 the 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. ① The involved rats were randomized into 3 groups: model group (group A), pcDNA3.1(+) group (group B) and pcDNA-NGIs group (group C), with 20 rats in each group. Left focal cerebral ischemia was permanently induced through middle cerebral artery occlusion with the assistance of an operating microscope. Successful middle cerebral artery occlusion 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 before middle cerebral artery occlusion for 6 weeks in group C. As control, pcDNA3.1 (+) was also administrated in the same way in group B and nothing was administrated in group A. 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 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 (BDA). 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; ② The improvement of the sensorimotor deficit. RESULTS: All the involved 60 rats entered the final analysis. ① The number of newly generated axons of corticorubral projection of rats: Only ipsilateral axons of corticorubral projiction were noted with little evidence of fibers crossing to the contralateral red nucleus in rats of groups A and B. More BDA-positive fibers crossing the midline and terminating in the contralateral red nucleus in appropriate target areas mirroring the non-differentiated red nucleus were found in rats of group C. Quantitative analysis showed that BDA-labelled axons in the denervated side of rats in group C were more than those in group B (P < 0.05). ② The improvement of the sensorimotor deficit: At two weeks after middle cerebral artery occlusion, significant improvement in sensorimotor deficit was found in rats of group C. There was significant difference of improvement in sensorimotor deficit of rats between group C and group B or group A at eight and 10 weeks after middle cerebral artery occlusion (P < 0.05). CONCLUSION: Pre-stroke DNA immunization against NGIs led to increased sensorimotor recovery following focal cerebral ischemia 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 | 2007 | Neural Regeneration Research2007，2，9： | 0 |
| 11 | 轴索生长抑制因子DNA疫苗安全有效地防治大鼠缺血性脑中风显示文摘目的评估轴索生长抑制因子DNA疫苗(pcDNA3.1(+)-neurite growth inhibitors,pcDNA-NGIs)防治缺血性脑中风的安全性和有效性。方法肌肉注射pcDNA-NGIs后,采用改良实验性自身免疫性脑髓鞘炎记分系统、改良神经病严重程度记分和逃避作业评估神经系统炎症、感觉运动和认知缺陷;采用生物素右旋糖胺追踪皮质红核投射的新生轴索。结果pcDNA-NGIs免疫不会引起神经系统炎症和感觉运动缺陷;阻塞大脑中动脉之前或之后进行pcDNA-NGIs免疫可增加皮质红核投射的新生纤维数(P=0.018)并削弱缺血性脑中风的感觉运动缺陷(P=0.042)。结论pcDNA-NGIs免疫不会使健康大鼠产生神经炎症和神经病症状,但可促进中风大鼠的神经再生和感觉运动功能恢复。 | 朱兴宝 Jasmine Lee Jill Wong Wan Loo Tan 冯忠堂 王廷华 肖志成 范泉水 Ivan Ng | 2009 | 脑与神经疾病杂志2009，17，2： | 0 |
| 12 | 中风前抗轴突生长抑制因子DNA免疫促进脑缺血功能康复显示文摘目的证实中风前抗轴突生长抑制因子DNA免疫对脑缺血神经功能康复的促进作用。方法经腓肠肌注射抗轴突生长抑制因子DNA疫苗免疫动物,每周一次、共6周;血清中检测出相关抗体后,采用永久性阻断大脑中动脉的方法制备左侧局部脑缺血模型;分别采用改良的神经病严重程度记分、被动逃避试验和悬臂迷宫试验评价运动功能、认知行为和焦虑样情感的。结果中风前接受抗轴突生长抑制因子DNA免疫,局部脑缺血后出现明显的运动恢复,但是认知行为和焦虑样情感障碍则没有明显改善。结论中风前抗轴突生长抑制因子DNA免疫可促进脑缺血后的运动功能恢复。 | 朱兴宝 Jasmine Lee Jill Wong Wan Loo Tan 王廷华 冯忠堂 Xiao Zhicheng Ivan Ng | 2007 | 西南军医2007，9，3： | 0 |
| 13 | 中风后抗轴突生长抑制因子DNA免疫促进局部脑缺血后神经再生(英文)显示文摘目的评价中风后给予轴突生长抑制因子DNA疫苗对局部脑缺血后神经再生的促进作用。方法采用阻断大脑中动脉血流成功诱导左侧局部脑缺血后,经腓肠肌注射轴突生长抑制因子DNA疫苗。立体定向注射生物素葡聚糖胺追踪皮质红核投射的新生轴突。结果中风后给予轴突生长抑制因子DNA疫苗可增加跨过中线终止于对侧红核相应区域的生物素葡聚糖胺标记阳性交叉纤维(P<0.05)。结论中风后给予轴突生长抑制因子DNA疫苗可促进局部脑缺血后的轴突再生。 | 朱兴宝 Jasmine Lee Jill Wong Wan Loo Tan 王廷华 冯忠堂 肖志成 Ivan Ng | 2008 | 中华神经外科疾病研究杂志2008，7，5： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员