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58篇 您的检索式:作者名="Ce Yan"
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1Modified constraint-induced movement therapy alters synaptic plasticity of rat contralateral hippocampus following middle cerebral artery occlusion显示文摘Modified constraint-induced movement therapy is an effective treatment for neurological and motor impairments in patients with stroke by increasing the use of their affected limb and limiting the contralateral limb.However,the molecular mechanism underlying its efficacy remains unclear.In this study,a middle cerebral artery occlusion(MCAO)rat model was produced by the suture method.Rats received modified constraint-induced movement therapy 1 hour a day for 14 consecutive days,starting from the 7^th day after middle cerebral artery occlusion.Day 1 of treatment lasted for 10 minutes at 2r/min,day 2 for 20 minutes at 2 r/min,and from day 3 onward for 20 minutes at 4 r/min.CatWalk gait analysis,adhesive removal test,and Y-maze test were used to investigate motor function,sensory function as well as cognitive function in rodent animals from the 1st day before MCAO to the 21^st day after MCAO.On the 21^st day after MCAO,the neurotransmitter receptor-related genes from both contralateral and ipsilateral hippocampi were tested by micro-array and then verified by western blot assay.The glutamate related receptor was shown by transmission electron microscopy and the glutamate content was determined by high-performance liquid chromatography.The results of behavior tests showed that modified constraint-induced movement therapy promoted motor and sensory functional recovery in the middle cerebral artery-occluded rats,but had no effect on cognitive function.The modified constraint-induced movement therapy upregulated the expression of glutamate ionotropic receptor AMPA type subunit 3(Gria3)in the hippocampus and downregulated the expression of the beta3-adrenergic receptor gene Adrb3 and arginine vasopressin receptor 1 A,Avprla in the middle cerebral artery-occluded rats.In the ipsilateral hippocampus,only Adra2 a was downregulated,and there was no significant change in Gria3.Transmission electron microscopy revealed a denser distribution the more distribution of postsynaptic glutamate receptor 2/3,which is an a-amino-3-hydroxy-5-methyl-4-isoxazole-propionic acid receptor,within 240 nm of the postsynaptic density in the contralateral cornu ammonis 3 region.The size and distribution of the synaptic vesicles within 100 nm of the presynaptic active zone were unchanged.Western blot analysis showed that modified constraint-induced movement therapy also increased the expression of glutamate receptor 2/3 and brain-derived neurotrophic factor in the hippocampus of rats with middle cerebral artery occlusion,but had no effect on Synapsin I levels.Besides,we also found modified constraint-induced movement therapy effectively reduced glutamate content in the contralateral hippocampus.This study demonstrated that modified constraint-induced movement therapy is an effective rehabilitation therapy in middle cerebral artery-occluded rats,and suggests that these positive effects occur via the upregulation of the postsynaptic membrane a-amino-3-hydroxy-5-methyl-4-isoxazole-propionic acid receptor expression.This study was approved by the Institutional Animal Care and Use Committee of Fudan University,China(approval No.201802173 S)on March 3,2018.Bei-Yao Gao Dong-Sheng Xu Pei-Le Liu Ce Li Liang Du Yan Hua Jian Hu Jia-Yun Hou Yu-Long Bai 2020Neural Regeneration Research2020,15,6:19
2Broadband polarized photodetector based on p-BP/n-ReS2 heterojunction显示文摘Two-dimensional(2D) atomic crystals,such as graphene,black phosphorus(BP) and transition metal dichalcogenides(TMDCs) are attractive for use in optoelectronic devices,due to their unique crystal structures and optical absorption properties.In this study,we fabricated BP/ReS2 van der Waals(vdWs) heterojunction devices.The devices realized broadband photoresponse from visible to near infrared(NIR)(400–1800 nm) with stable and repeatable photoswitch characteristics,and the photoresponsivity reached 1.8 mA/W at 1550 nm.In addition,the polarization sensitive detection in the visible to NIR spectrum(532–1750 nm) was demonstrated,and the photodetector showed a highly polarization sensitive photocurrent with an anisotropy ratio as high as 6.44 at 1064 nm.Our study shows that van der Waals heterojunction is an effective way to realize the broadband polarization sensitive photodetection,which is of great significance to the realization and application of multi-functional devices based on 2D vdWs heterostructures.Wenkai Zhu Xia Wei Faguang Yan Quanshan Lv Ce Hu Kaiyou Wang 2019Journal of Semiconductors2019,40,9:6
3The RppC-AvrRppC NLR-effector interaction mediates the resistance to southern corn rust in maize显示文摘Southern corn rust(SCR),caused by the fungal pathogen Puccinia polysora,is a major threat to maize pro-duction worldwide.Efficient breeding and deployment of resistant hybrids are key to achieving durable control of SCR.Here,we report the molecular cloning and characterization of RppC,which encodes an NLR-type immune receptor and is responsible for a major SCR resistance quantitative trait locus.Further-more,we identified the corresponding avirulence effector,AvrRppC,which is secreted by P.polysora and triggers RppC-mediated resistance.Allelic variation of AvrRppC directly determines the effectiveness of RppC-mediated resistance,indicating that monitoring of AvrRppC variants in the field can guide the rational deployment of RppC-containing hybrids in maize production.Currently,RppC is the most frequently deployed SCR resistance gene in China,and a better understanding of its mode of action is crit-ical for extending its durability.Ce Deng April Leonard James Cahill Meng Lv Yurong Li Shawn Thatcher Xueying Li Xiaodi Zhao Wenjie Du Zheng Li Huimin Li Victor Llaca Kevin Fengler Lisa Marshall Charlotte Harris Girma Tabor Zhimin Li Zhiqiang Tian Qinghua Yang Yanhui Chen Jihua Tang Xintao Wang Junjie Hao Jianbing Yan Zhibing Lai Xiaohong Fei Weibin Song Jinsheng Lai Xuecai Zhang Guoping Shu Yibo Wang Yuxiao Chang Weiling Zhu Wei Xiong Juan Sun Bailin Li Junqiang Ding 2022Molecular Plant2022,15,5:6
4Precise temporal regulation of Dux is important for embryo development显示文摘Dear Editor,Zygotic genome activation(ZGA)following fertilization is accomplished through a process termed the maternal-to-zygotic transition,during which the maternal RNAs and proteins are degraded and zygotic genome is transcriptionally activated.In mice,minor ZGA occurs from S phase of the zygote to G1 phase of the two-cell(2C)embryo,while major ZGA takes place during the middle-to-late 2C stage with a burst of transcription of totipotent cleavage stage-specific genes and retrotransposons.Mingyue Guo Yanping Zhang Jianfeng Zhou Yan Bi Junqin Xu Ce Xu Xiaochen Kou Yanhong Zhao Yanhe Li Zhifen Tu Kuisheng Liu Jiaming Lin Peng Yang Shaorong Gao Yixuan Wang 2019Cell Research2019,29,11:5
5Comparison of intravitreal injection of conbercept and triamcinolone acetonide for macular edema secondary to branch retinal vein occlusion显示文摘AIM:To compare the safety and efficacy of the intravitreal injection of conbercept(IVC)and triamcinolone acetonide(IVTA)for macular edema(ME)secondary to branch retinal vein occlusion(BRVO).METHODS:A prospective,randomized clinical study.Patients with ME secondary to BRVO were randomly assigned to either IVC group or IVTA group at a ratio of 2:1 and a 12-month follow-up was performed.The efficacy outcome measures included the mean changes and differences in best corrected visual acuity(BCVA)and the central retinal thickness(CRT).The safety profiles and the mean retreatment intervals were also compared.RESULTS:There was no statistically significant difference of baseline between the two groups(IVC group,n=36;IVTA group,n=17).At 12mof the BCVA letters improved by 27.31±18.36 in the IVC group,and 13.53±11.37 in the IVTA group(P=0.0004).CRT reduction was 253.33±163.69 and 150.24±134.32 pm,respectively(P=0.0034).The mean BCVA in the IVC group was superior to that of the IVTA group for months 6-12(P<0.01).The mean CRT at 9 and 12mo were thinner in the IVC group compared to the IVTA group(P<0.01).The mean retreatment interval in the IVC group was longer than that in the IVTA group(97.40±36.27d vs 68.71±36.38d,P=0.0030).One eye in the IVC group and seven eyes in the IVTA group developed elevated intraocular pressure(IOP;P=0.0012).The proportion of eyes with cataract new-onset or progression were 19.44%in the IVC group and 64.71%in the IVTA group(P=0.0012).CONCLUSION:IVC could maintain or improve BCVA and reduce CRT for a longer time and have longer retreatment interval than IVTA.In addition,patients treated with IVTA are more susceptible to IOP elevation and cataract progression.Miao Zhao Ce Zhang Xi-Mei Chen Yan Teng Tian-Wei Shi Fei Liu 2020International Journal of Ophthalmology(English edition)2020,13,11:4
6Effects of Normalized Difference Vegetation Index and Related Wavebands′ Characteristics on Detecting Spatial Heterogeneity Using Variogram-based Analysis显示文摘Spatial heterogeneity is widely used in diverse applications, such as recognizing ecological process, guiding ecological restoration, managing land use, etc. Many researches have focused on the inherent scale multiplicity of spatial heterogeneity by using various environmental variables. How these variables affect their corresponding spatial heterogeneities, however, have received little attention. In this paper, we examined the effects of characteristics of normalized difference vegetation index (NDVI) and its related bands variable images, namely red and near infrared (NIR), on their corresponding spatial heterogeneity detection based on variogram models. In a coastal wetland region, two groups of study sites with distinct fractal vegetation cover were tested and analyzed. The results show that: 1) in high fractal vegetation cover (H-FVC) area, NDVI and NIR variables display a similar ability in detecting the spatial heterogeneity caused by vegetation growing status structure; 2) in low fractal vegetation cover (L-FVC) area, the NIR and red variables outperform NDVI in the survey of soil spatial heterogeneity; and 3) generally, NIR variable is ubiquitously applicable for vegetation spatial heterogeneity investigation in different fractal vegetation covers. Moreover, as variable selection for remote sensing applications should fully take the characteristics of variables and the study object into account, the proposed variogram analysis method can make the variable selection objectively and scientifically, especially in studies related to spatial heterogeneity using remotely sensed data.WEN Zhaofei ZHANG Ce ZHANG Shuqing DING Changhong LIU Chunyue PAN Xin LI Huapeng SUN Yan 2012Chinese Geographical Science2012,22,2:4
7PARTICLE-COLLISION AND POROGEN-LEACHING TECHNIQUE TO FABRICATE POLYMERIC POROUS SCAFFOLDS WITH MICROSCALE ROUGHNESS OF INTERIOR SURFACES显示文摘A facile technique is herein reported to fabricate three-dimensional(3D) polymeric porous scaffolds with interior surfaces of a topographic microstructure favorable for cell adhesion.As demonstration,a well-known biodegradable polymer poly(lactide-co-glycolide)(PLGA) was employed as matrix.Under the porogen-leaching strategy,the large and soft porogens of paraffin were modified by colliding with small and hard salt particles,which generated micropits on the surfaces of paraffin spheres.The eventual PLGA scaffolds after leaching the modified porogens had thus interior surfaces of microscale roughness imprinted by those micropits.The microrough scaffolds were confirmed to benefit adhesion of bone marrow stromal cells(BMSCs) of rats and meanwhile not to hamper the proliferation and osteogenic differentiation of the cells.The insight and technique might be helpful for biomaterial designing in tissue engineering and regenerative medicine.Zhen Pan Ze-hua Qu Zheng Zhang Rong Peng Ce Yan 丁建东 2013Chinese Journal of Polymer Science2013,31,5:3
8Drimane Sesquiterpenoids and Isochromone Derivative from the Endophytic Fungus Pestalotiopsis sp. M-23显示文摘Three new drimane sesquiterpenoids(1–3)together with the known 2a-hydroxyisodrimeninol(4),and a new isochromone derivative(5),were obtained from the solid cultures of fungal strain Pestalotiopsis sp.M-23,an endophytic fungus isolated from the leaves of Leucosceptrum canum(Labiatae).Their structures were determined by comprehensive 1D and 2D NMR,and MS analyses.The metabolites were evaluated for their antibacterial activities,and compound 3 showed weak inhibitory activity against Bacillus subtilis.Ce Kuang Shu-Xi Jing Yan Liu Shi-Hong Luo Sheng-Hong Li 2016Natural Products and Bioprospecting2016,6,3:3
9Microstructure and texture evolution of the β-Mg17A12 phase in a Mg alloy with an ultra-high Al content显示文摘In the present study,the effects of equal channel angular pressing(ECAP)on the microstructure and mechanical property of the Mg-20Al alloy were systematically investigated.For the first time,the texture of Mg17Al12 phase and its evolution with ECAP conditions were reported.The results show that increasing the processing temperature and passes generates more uniform distribution and finer size ofβ-Mg17Al12 phases.The large pieces ofβ-Mg17A12 phases are composed of many fine grains with different crystallographic orientations.For theβ-Mg17A12 phase,a preferred distribution of(001)appears at 523 K and 573 K,and hardly varies with temperature.Nevertheless,a random texture is observed at 623 K.The(0002)poles exhibit a preferred distribution at 473 K,but this preferred distribution varies with temperature.A random distribution of(0002)poles is observed when processed at 623 K.Many types of crystallographic planar relationship betweenβ-Mg17A12 phase andα-Mg matrix are observed and the relationships of{11-23}//{100}or{110}or{111}and{1-211}//{100}or//{110}or{111}have a relatively higher frequency than others.The texture ofα-Mg matrix is much different from that of the ECAPed Mg alloys with a relative low Al content,in which a texture with basal poles inclining approximately 45°away from the extrusion direction often develops.The mechanical properties of Mg-20Al alloy are closely related to the temperature and passes of ECAP.A higher temperature often decreases the yield strength,but hardly alters the maximum strength.There is a low plasticity for all the samples and increasing processing temperature slightly enhances the plasticity.The corresponding mechanisms were deeply discussed.Changjian Yan Yunchang Xin Ce Wang Huan Liu Qing Liu 2020Journal of Materials Science & Technology2020,52,17:3
10Benzimidazolium Functionalized Polysulfone-based Anion Exchange Membranes with Improved Alkaline Stability显示文摘The stability of anion exchange membranes(AEMs) is an important feature of alkaline exchange membrane fuel cells(AEMFCs), which has been extensively studied. However it remains a real challenge due to the harsh working condition. Herein, we developed a novel type of polysulfone-based AEMs with three modified 1,2-dimethylbenzimidazoliums containing different substitutes at C4-and C7-position. The results showed that the introduction of the substitutes could obviously improve the dimensional and alkaline stabilities of the corresponding membranes. The swelling ratios of resultant AEMs were all lower than 10% after water immersion. The membrane with 4,7-dimethoxy-1,2-dimethylbenzimidazolium group exhibited the highest alkaline stability. Only 9.2% loss of hydroxide conductivity was observed after treating the membrane in 1 mol·L^(-1) KOH solution at 80 °C for 336 h. Furthermore, the density functional theory(DFT) study on the three functional group models showed that the substitutes at C4-and C7-position affected the lowest unoccupied molecular orbital(LUMO) energies of the different 1,2-dimethylbenzimidazolium groups.Yu Pan Ting-Yun Wang Xiao-Ming Yan Xiao-Wei Xu Qi-Dong Zhang Bao-Lin Zhao Issam El Hamouti Ce Hao Gao-Hong He 2018Chinese Journal of Polymer Science2018,36,1:2
11The characteristic and dynamic electrocardiogram changes on hyperkalemia in a hemodialysis patient with heart failure:a case report显示文摘Hyperkalemia,usually associated with predisposing chronic diseases as heart failure(HF),severe kidney disease or diabetes mellitus(DM),[1]is defined as an elevation of potassium concentration more than 5.5 mmol/L,[2].Rui ZHAO Xin HAO Fei WANG Jing FENG Jing PAN Ce JING Ming-Ren MA Yan LIU Ling MA Xiao-Qing CAI 2022Journal of Geriatric Cardiology2022,19,2:2
12Clinical study on mannan with TP regimen in treating patients I lung cancer显示文摘Yan HA Shen K peptide combined with non-small ce Prev 2013 14(8) Huang XE 2013Asian Pac J Cancer2013,,:1
13InSe/hBN/graphite heterostructure for high-performance 2D electronics and flexible electronics显示文摘Two-dimensional(2D)materials as channel materials provide a promising alternative route for future electronics and flexible electronics,but the device performance is affected by the quality of interface between the 2D-material channel and the gate dielectric.Here we demonstrate an indium selenide(lnSe)/hexagonal boron nitride(hBN)/graphite heterostructure as a 2D field-effect transistor(FET),with InSe as channel material,hBN as dielectric,and graphite as gate.The fabricated FETs feature high electron mobility up to 1,146 cm2·V^-1·s^-1 at room temperature and on/off ratio up to 1010 due to the atomically flat gate dielectric.Integrated digital inverters based on InSe/hBN/graphite heterostructures are constructed by local gating modulation and an ultrahigh voltage gain up to 93.4 is obtained.Taking advantages of the mechanical flexibility of these materials,we integrated the heterostructured InSe FET on a flexible substrate,exhibiting little modification of device performance at a high strain level of up to 2%.Such high-performance heterostructured device configuration based on 2D materials provides a new way for future electronics and flexible electronics.Liangmei Wu Jinan Shi Zhang Zhou Jiahao Yan Aiwei Wang Ce Bian Jiajun Ma Ruisong Ma Hongtao Liu Jiancui Chen Yuan Huang Wu Zhou Lihong Bao Min Ouyang Sokrates T.Pantelides Hong-Jun Gao 2020Nano Research2020,13,4:1
14Topology optimization of turbine disk considering maximum stress prediction and constraints显示文摘For the stress-constrained topology optimization of a turbine disk under centrifugal loads,the jagged boundaries of the mesh and the gray densities on the solid/void interfaces could make the calculated stress field inconsistent with the actual value.It may result in overestimating the maximum stress and thus affect the effectiveness of stress constraints.This paper proposes a new method for predicting the maximum stress to overcome the difficulty.In the process,a predicted density is newly defined to obtain stable boundaries with thin layers of gray elements,a transition factor is innovatively proposed to evaluate the effects of intermediate-density elements,two different stiffness penalty schemes are flexibly used to calculate the elastic modulus of elements,and a linear stress penalty is further adopted to relax the stress field of the structure.The proposed approach for predicting the maximum stress value is verified by the analysis of a structure with smooth boundaries and the topology optimization of a turbine disk.An updating scheme of the stress constraint in the topology optimization is also developed using the predicted maximum stress.Some key ingredients affecting the optimization results are discussed in detail.The results prove the effectiveness and efficacy of the proposed maximum stress prediction and developed stress constraint methods.Cheng YAN Ce LIU Han DU Cunfu WANG Zeyong YIN 2023Chinese Journal of Aeronautics2023,36,8:1
15The impact of quality of work life on job embeddedness and affective commitment and their co‐effect on turnover intention of nurses显示文摘XiaoWen Zhao Tao Sun QiuRu Cao Ce Li XiaoJian Duan LiHua Fan Yan Liu 2012Journal of Clinical Nursing2012,,5:1
16Colloidal crystals self-assembled on the end face of fiber:fabrication and characterizations显示文摘Yan Haitao Wang Ming Ce Yixian 2009Optical Fiber Technology2009,,15:1
17Coupling model and optimal combination scheme of water,fertilizer,dissolved oxygen and temperature in greenhouse tomato under drip irrigation显示文摘Water-fertilizer coupling technology has been widely used in the world.Poor soil aeration,low temperature or high temperature can affect the rate of nutrient uptake by crop roots.Aiming at the interaction between water,fertilizer,dissolved oxygen and temperature(WFOT)coupling model and irrigation flux of tomato in greenhouse,using these four factors with a five-level uniform-precision rotatable central composite design,a mathematical model was established among the four factors affecting tomato yield in a greenhouse,and the optimal combination scheme of WFOT was obtained.Within the test range,tomato yields increased with increasing irrigation quotas(X_(1)),fertilization amount(X_(2)),dissolved oxygen(X_(3))and geothermal pipe water temperature(X_(4)).The magnitude of the effect of each factor of WFOT on tomato yield was in the following order:X_(1),X_(2),X_(4),X_(3)(spring and summer),and X_(1),X_(3),X_(2),X_(4)(autumn and winter).The interaction between high water-low heat and low water-high heat were beneficial for yield increase(spring and summer),the high fertilizer-low heat and low fertilizer-high heat interactions were beneficial to yield increase(autumn and winter).If WFOT agronomic measures were adopted according to the 95%confidence interval,there was a 95%probability that the spring-summer tomato yield will be higher than 89902 kg/hm^(2).The WFOT coupling scheme was X_(1)of 4808-5091 m3/hm^(2),X_(2)(N-P_(2)O_(5)-K_(2)O)of 171-57-84 to 186-62-89 kg/hm^(2),X_(3)of 7.9-8.2 mg/L,and X_(4)of 34.9°C-37.0°C.There was a 95%probability of tomato yield higher than 85209 kg/hm^(2)in autumn and winter,and the WFOT coupling scheme was X_(1)of 5270-5416 m3/hm^(2),X_(2)(N-P_(2)O_(5)-K_(2)O)of 151-50-76 to 167-56-82 kg/hm^(2),X_(3)of 8.0-8.2 mg/L,and X_(4)of 34.1°C-36.2°C.Overall,and the model had a very good simulation effect,with application value.The relative error between spring-summer and autumn-winter yields ranged from 1.12%to 25.34%.The results of the study can provide a theoretical basis for improving the quality and efficiency of greenhouse tomatoes.Zan Ouyang Juncang Tian Ce Zhao Xinfang Yan 2021International Journal of Agricultural and Biological Engineering2021,14,6:1
18Glioma stem cell proliferation and tumor growth are promoted by nitric oxide synthase-2 显示文摘Eyler CE Wu Q Yan K 2011Cell2011,146,1:1
19Natural genetic variation in lycopene epsilon eyclase tapped for maize biofortification显示文摘Harjes CE Rocheford TR Bai L BrutneU TP Kandianis CB Sowinski SG Stapleton AE Vallabhaneni R Wil-liams M Wurtzel ET Yan J Buckler ES 2008Science2008,,319:1
20Glioma stem cell proliferation and tumor growth are promoted by nitric oxide synthase-2显示文摘Eyler CE Wu Q Yan K 2011Cell2011,146,1:1
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