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| 1 | Bone marrow mesenchymal stem cells repair spinal cord ischemia/reperfusion injury by promoting axonal growth and anti-autophagy显示文摘Bone marrow mesenchymal stem cells can differentiate into neurons and astrocytes after transplantation in the spinal cord of rats with ischemia/reperfusion injury. Although bone marrow mesenchymal stem cells are known to protect against spinal cord ischemia/reperfusion injury through anti-apoptotic effects, the precise mechanisms remain unclear. In the present study, bone marrow mesenchymal stem cells were cultured and proliferated, then transplanted into rats with ischemia/reperfusion injury via retro-orbital injection. Immunohistochemistry and immunofluorescence with subsequent quantification revealed that the expression of the axonal regeneration marker, growth associated protein-43, and the neuronal marker, microtubule-associated protein 2, significantly increased in rats with bone marrow mesenchymal stem cell transplantation compared with those in rats with spinal cord ischemia/reperfusion injury. Furthermore, the expression of the autophagy marker, microtubule-associated protein light chain 3B, and Beclin 1, was significantly reduced in rats with the bone marrow mesenchymal stem cell transplantation compared with those in rats with spinal cord ischemia/reperfusion injury. Western blot analysis showed that the expression of growth associated protein-43 and neurofilament-H increased but light chain 3B and Beclin 1 decreased in rats with the bone marrow mesenchymal stem cell transplantation. Our results therefore suggest that bone marrow mesenchymal stem cell transplantation promotes neurite growth and regeneration and prevents autophagy. These responses may likely be mechanisms underlying the protective effect of bone marrow mesenchymal stem cells against spinal cord ischemia/reperfusion injury. | Fei Yin Chunyang Meng Rifeng Lu Lei Li Ying Zhang Hao Chen Yonggang Qin Li Guo | 2014 | Neural Regeneration Research2014,9,18: | 16 |
| 2 | Cloning of a gene-edited macaque monkey by somatic cell nuclear transfer显示文摘Cloning of macaque monkeys by somatic cell nucleus transfer(SCNT) allows the generation of monkeys with uniform genetic backgrounds that are useful for the development of non-human primate models of human diseases. Here, we report the feasibility of this approach by SCNT of fibroblasts from a macaque monkey(Macaca fascicularis), in which a core circadian transcription factor BMAL1 was knocked out by clustered regularly interspaced short palindromic repeat/Cas9 gene editing(see accompanying paper).Out of 325 SCNT embryos transferred into 65 surrogate monkeys, we cloned five macaque monkeys with BMAL1 mutations in both alleles without mosaicism, with nuclear genes identical to that of the fibroblast donor monkey. Further peripheral blood m RNA analysis confirmed the complete absence of the wild-type BMAL1 transcript. This study demonstrates that the SCNT approach could be used to generate cloned monkeys from fibroblasts of a young adult monkeys and paves the way for the development of macaque monkey disease models with uniform genetic backgrounds. | Zhen Liu Yijun Cai Zhaodi Liao Yuting Xu Yan Wang Zhanyang Wang Xiaoyu Jiang Yuzhuo Li Yong Lu Yanhong Nie Xiaotong Zhang Chunyang Li Xinyan Bian Mu-ming Poo Hung-Chun Chang Qiang Sun | 2019 | National Science Review2019,6,1: | 14 |
| 3 | Primary investigation of the pollution status of polycyclic aromatic hydrocarbons (PAHs) in water and soil of Xuanwei and Fuyuan,Yunnan Province,China显示文摘Lung cancer incidence in Xuanwei and Fuyuan is extremely high. The air pollution, especially indoor airborne PAHs generated by burning smoky coals, has been considered as the most probable reason. The air pollution may affect drinking water and soil through dry and wet deposition. In this study, the concentrations of PAHs in water and soil samples from Xuanwei and Fuyuan were monitored to investigate the influence of atmospheric PAHs pollution on water and soil. No obvious PAHs pollution in water was found in these two areas, indicating that airborne PAHs have no apparent effect on the drinking water (well water). The smoky coal combustion from household and industry, such as the activities related to power plants, coking plants and chemical industries, is responsible for the soil PAHs pollution in these two areas. The soil pollution might be the reemission source and would pose long-term threat to the local environment and health of residents. | LU JunGang XU RenJi ZHANG QingHua LIU JiYan LIAO ChunYang WEI FuSheng | 2009 | Chinese Science Bulletin2009,54,19: | 4 |
| 4 | A functional hyperbranched binder enabling ultra-stable sulfur cathode for high-performance lithium-sulfur battery显示文摘Binders are of vital importance in stabilizing the cathodes to enhance the cycling stability of lithiumsulfur(Li-S) batteries. However, conventional binders are typically confronted with the drawback of inability for adsorbing lithium polysulfide(Li PS), thus resulting in severe active material losing and rapid capacity fading. Herein, a novel water-soluble hyperbranched poly(amidoamine)(HPAA) binder with controllable hyperbranched molecular structure and abundant amino end groups for Li-S battery is designed and fabricated, which can improve efficient adsorption for Li PS and stability of the sulfur cathodes. Besides, the strong intermolecular hydrogen bonds in HPAA binder can contribute to the structural stability of S cathode and integration of the conductive paths. Therefore, the Li-S battery with this functional binder exhibits excellent cycle performance with a capacity retention of 91% after 200 cycles at 0.1 C.Even at a high sulfur loading of 5.3 mg cm-2, a specific capacity of 601 mA h g-1 can also be achieved.Density functional theory(DFT) calculation further demonstrates that the enhanced electrochemical stability derives from the high binding energy between amino groups and LiP S and the wide electrochemical window(6.87 e V) of HPAA molecule. Based on the above all, this functional polymer will lighten a new species of binders for eco-friendly sulfur cathodes and significantly promote the practical applications of high-performance Li-S batteries. | Xiang Luo Xianbo Lu Xiaodong Chen Ya Chen Chunyang Yu Dawei Su Guoxiu Wang Lifeng Cui | 2020 | Journal of Energy Chemistry2020,29,11: | 2 |
| 5 | Lithospheric composition and structure beneath the northern margin of the Qinling orogenic belt——On deep-seated xenoliths in Minggang region of Henan Province显示文摘Swarms of mafic-intermediate volcaniclastic bodies occur in the Minggang region of Henan Province, a tectonic boundary between the North Qinling and the North China Block, and emplaced at (178.31±3.77) Ma. These volcanic rocks are subalkaline basaltic andesites and contain abundance of lower crust and mantle xenoliths. Thus this area is an ideal place to reveal the lithospheric composition and structure beneath the northern margin of the Qinling orogenic belt. Geochemical data indicate that these mafic granulites, eclogites and metagabbros have trace elemental and Pb isotopic characteristics very similar to those rocks from the South Qinling Block, representing the lower part of lower crust of the South Qinling which subducted beneath the North China Block. Talcic peridotites represent the overlying mantle wedge materials of the North China Block, which underwent the metasomatism of the acidic melt/fluid released from the underlying lower crust of the South Qinling Block. Deep tectonic model proposed in this paper is that after the Late Paleozoic South Qinling lithosphere subducted northward and decoupled, the upper part of the lithosphere emplaced under the North Qinling and the lower part continuously subducted northward under the North China Block. In Early Mesozoic, the North Qinling Block obducted northward and the North China Block inserted into the Qinling orogenic belt in a crocodile-mouth shape. | LU Fengxiang WANG Chunyang ZHENG Jianping | 2004 | Science China Earth Sciences2004,47,1: | 2 |
| 6 | Disuccinimidyl suberate cross-linked hemoglobin as a novel red blood cell substitute显示文摘Disuccinimidyl suberate (DSS) intramolecularly cross-linked hemoglobin (Hb) was developed as a novel red blood cell substitute. A multi-angle laser light scattering detector coupled with size exclusion HPLC was applied to determine the molecular weight of the modified Hb. SDS-PAGE was also used as a complement. It was proved that 83.8% of the product was intramolecularly cross-linked Hb with weight-average molecular weights (Mw) of 67.5 kD, 12% was dimeric Hb with Mw of 146.6 kD, and 4.2% was trimeric Hb with Mw of 306.4 kD. The tetramer structure of the cross-linked Hb was stable as shown in size-exclusion chromatography using a mobile phase containing 1 mol/L MgCl2. Analysis by LC-MS demonstrated that the reaction of DSS with Hb mainly took place between the twoα subunits within a Hb molecule, resulting in stabilization of the tetramer structure. However, the cross-linking was not site-specific. The P50 of the cross-linked Hb decreased from 21.8 mmHg to 14.3 mmHg, and the Hill coefficient decreased from 2.22 to 1.41. Result of isoelectric focusing showed that the pI of DSS cross-linked Hb was in the range of 4.6-5.2, similar to that of serum albumin. The safety of DSS cross-linked Hb was favored by animal tests on rats and guinea pigs. Exchange transfusion experiment with DSS cross-linked Hb using rats as a model indicated no pressor effect or other significant side effects. The characteristics and properties of DSS cross-linked Hb were also compared with that of diaspirin cross-linked Hb reported in the literature. | LU Xiuling, ZHENG Chunyang, XU Yuhong & SU Zhiguo National Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100080, China School of Life Science and Technology, Beijing University of Chemical Technology, Beijing 100029, China | 2005 | Science China(Life Sciences)2005,48,1: | 1 |
| 7 | Polymeric Complex Nanoparticles Enable the Fabrication of Mechanically Superstrong and Recyclable Poly(aryl ether sulfone)-based Polymer Composites显示文摘It is a long-term pursuit,and also,a challenge to significantly improve the mechanical strength of thermoplastic polymers using readily dispersed polymers as nanofillers.In this study,we demonstrated that in situ formed carboxylic acid-functionalized poly(aryl ether sulfone)(PAES-COOH)/polyvinylpyrrolidone(PVPON)complex nanoparticles can significantly enhance the mechanical strength of PAES-COOH by mixing PAES-COOH with a small fraction of PVPON.The PAES-COOH/PVPON10%composite,which contained∼10 wt%PVPON,exhibited a tensile strength of∼104.8 MPa and Young’s modulus of∼932.2 MPa,which were∼2.0 and∼1.7 times higher than those of the PAES-COOH,respectively.The PAES-COOH/PVPON nanoparticles which were uniformly dispersed in PAES-COOH matrices and had strong hydrogen-bonding interactions with PAES-COOH,served as nanofillers to reinforce the mechanical strength of the PAES-COOH.The PAES-COOH/PVPON_(10%)composites possessed excellent solvent-assisted healability,and the fractured composites could be healed to restore their original mechanical strength.Meanwhile,the PAES-COOH/PVPON_(10%)composites could be recycled multiple times,and yet retained their shape integration and their original mechanical strength. | Xingyuan Lu Yuchao Luo Yixuan Li Chunyang Bao Xiaohan Wang Ni An Guibin Wang Junqi Sun | 2020 | CCS Chemistry2020,2,1: | 1 |
| 8 | An assessment of regional water resource based on water footprint:A case study of Chonqqing Municipality显示文摘 | Wang Zhaolin Yang Qingyuan Lu Chunyang | 2007 | Journal of Southwest University (Natural Science Edition)2007,29,8: | 1 |
| 9 | Sensitive detection of DNA methyltransferase activity based on supercharged fluorescent protein and template-free DNA polymerization显示文摘DNA methylation, catalyzed by DNA methyltransferases(MTases), is a key component of genetic regulation, and DNA MTases have been regarded as potential targets in anticancer therapy. Herein, based on our previously developed DNA-mediated supercharged green fluorescent protein(Sc GFP)/graphene oxide(GO) interaction, coupled with methylation-initiated template-free DNA polymerization, we propose a novel fluorescence assay strategy for sensitive detection of DNA MTase activity. A hairpin DNA with a methylation-sensitive site and an amino-modified 3′-terminal(DNA-1) was designed and worked as a starting molecule. In the presence of DNA MTase, methylation-sensitive restriction endonuclease, and terminal deoxynucleotidyl transferase(Td T), DNA-1 can be sequentially methylated, cleaved, and further elongated. The resulting long DNA fragments quickly bind with Sc GFP and form the Sc GFP/DNA nanocomplex. Such nanocomplex can effectively protect Sc GFP from being adsorbed and quenched by GO. Without the methylation-initiated DNA polymerization, the fluorescence of Sc GFP will be quenched by GO. Thus, the DNA MTase activity, which is proportional to the amount of DNA polymerization products, can be measured by reading the fluorescence of Sc GFP/GO. The method was successfully used to detect the activity of DNA adenine methylation(Dam) MTase with a wide linear range(0.1–100 U/m L) and a low detection limit of 0.1 U/m L. In addition, the method showed high selectivity and the potential to be applied in a complex sample. Furthermore, this study was successfully extended to evaluate the inhibition effect of 5-fluorouracil on Dam MTase activity and detect Td T activity. | Daiqi Li Guoyan Lu Chunyang Lei Zhen Wang Lijun Li Zhou Nie Yan Huang Shouzhuo Yao | 2016 | Science China Chemistry2016,59,7: | 1 |
| 10 | Extreme temperature increases the severity of intracerebral hemorrhage: An analysis based on the cold region of China显示文摘Objective:The purpose of this study was to find a suitable model to evaluate the relationship between temperature and intracerebral hemorrhage(ICH)and explore the effects of cold spells and heat waves on the clinicopathological parameters of ICH patients.Methods:We conducted a retrospective study based on the ICH admission in the First Affiliated Hospital of Harbin Medical University from 2015 to 2020(N=11124).The relationship between different seasons and the number of patients with ICH was explored.Poisson Akaike information criterion(AIC)was used to select the optimal model for temperature and ICH.Binary logistic regression analysis was used to investigate the association between extreme temperatures and clinicopathological features.Results:Hospital admissions for patients with ICH showed monthly changes.The optimal cold spell was defined as the daily average temperature<3rd percentile,lasting for five days,while the optimal heat wave was defined as the daily average temperature>97th percentile,lasting for three days.Based on the generalized extreme weather model,cold climate significantly increased the risk of hematoma volume expansion(OR 1.003;95%CI:1.000-1.005,P=0.047).In the optimal model,the occurrence of cold spells and heat waves increased the risk of midline shift in both conditions(OR 1.067;95%CI:1.021-1.115,P=0.004;OR 1.077;95%CI:1.030-1.127,P=0.001).Conclusion:Our study shows that seasonal cold spells and heat waves are essential factors affecting ICH severity,and targeted preventive measures should be taken to minimize the pathological impacts. | Xun Xu Chunyang Liu Rui Liu Qiuyi Jiang Enzhou Lu Chao Yuan Yanchao Liang Huan Xiang Boxian Zhao Xin Chen Ailing Lian Qi Zhou Guang Yang | 2022 | Frigid Zone Medicine2022,2,3: | 1 |
| 11 | A novel PI3K inhibitor XH30 suppresses orthotopic glioblastoma and brain metastasis in mice models显示文摘Glioblastoma is carcinogenesis of glial cells in central nervous system and has the highest incidence among primary brain tumors.Brain metastasis,such as breast cancer and lung cancer,also leads to high mortality.The available medicines are limited due to blood-brain barrier.Abnormal activation of phosphatidylinositol 3-kinases(PI3 K)signaling pathway is prevalent in glioblastoma and metastatic tumors.Here,we characterized a 2-amino-4-methylquinazoline derivative XH30 as a potent PI3 K inhibitor with excellent anti-tumor activity against human glioblastoma.XH30 significantly repressed the proliferation of various brain cancer cells and decreased the phosphorylation of key proteins of PI3 K signaling pathway,induced cell cycle arrest in G1 phase as well.Additionally,XH30 inhibited the migration of glioma cells and blocked the activation of PI3 K pathway by interleukin-17 A(IL-17 A),which increased the migration of U87 MG.Oral administration of XH30 significantly suppressed the tumor growth in both subcutaneous and orthotopic tumor models.XH30 also repressed tumor growth in brain metastasis models of lung cancers.Moreover,XH30 reduced IL-17 A and its receptor IL-17 RA in vivo.These results indicate that XH30 might be a potential therapeutic drug candidate for glioblastoma migration and brain metastasis. | Ming Ji Dongjie Wang Songwen Lin Chunyang Wang Ling Li Zhihui Zhang Jing Jin Deyu Wu Yi Dong Heng Xu Duo Lu Xiaoguang Chen | 2022 | Acta Pharmaceutica Sinica B2022,12,2: | 1 |
| 12 | OBV(obscure vein),a C_(2)H_(2)zinc finger transcription factor,positively regulates chloroplast development and bundle sheath extension formation in tomato(Solanum lycopersicum)leaf veins显示文摘Leaf veins play an important role in plant growth and development,and the bundle sheath(BS)is believed to greatly improve the photosynthetic efficiency of C_(4) plants.The OBV mutation in tomato(Solanum lycopersicum)results in dark veins and has been used widely in processing tomato varieties.However,physiological performance has difficulty explaining fitness in production.In this study,we confirmed that this mutation was caused by both the increased chlorophyll content and the absence of bundle sheath extension(BSE)in the veins.Using genome-wide association analysis and map-based cloning,we revealed that OBV encoded a C_(2)H_(2) L domain class transcription factor.It was localized in the nucleus and presented cell type-specific gene expression in the leaf veins.Furthermore,we verified the gene function by generating CRISPR/Cas9 knockout and overexpression mutants of the tomato gene.RNA sequencing analysis revealed that OBV was involved in regulating chloroplast development and photosynthesis,which greatly supported the change in chlorophyll content by mutation.Taken together,these findings demonstrated that OBV affected the growth and development of tomato by regulating chloroplast development in leaf veins.This study also provides a solid foundation to further decipher the mechanism of BSEs and to understand the evolution of photosynthesis in land plants. | Jinghua Lu Chunyang Pan Xin Li Zejun Huang Jinshuai Shu Xiaoxuan Wang Xiaoxiao Lu Feng Pan Junling Hu Hui Zhang Wenyue Su Min Zhang Yongchen Du Lei Liu Yanmei Guo Junming Li | 2021 | Horticulture Research2021,8,1: | 1 |
| 13 | A comparative study on electrosorptive behavior of carbon nanotubes and graphene for capacitive deionization显示文摘 | Haibo Li Likun Pan Ting Lu Yankun Zhan Chunyang Nie Zhuo Sun | 2011 | Journal of Electroanalytical Chemistry2011,,1: | 1 |
| 14 | Electrophoretic deposition of carbon nanotubes film electrodes for capacitive deionization显示文摘 | Chunyang Nie Likun Pan Haibo Li Taiqiang Chen Ting Lu Zhuo Sun | 2011 | Journal of Electroanalytical Chemistry2011,,: | 1 |
| 15 | Model of permanent magnet inductor type synchronous motor 显示文摘 | YANG Guijie DU Chunyang LU yongping | 2003 | APEC2003,,1: | 1 |
| 16 | RFPose-OT:RF-based 3D human pose estimation via optimal transport theory显示文摘This paper introduces a novel framework,i.e.,RFPose-OT,to enable three-dimensional(3D)human pose estimation from radio frequency(RF)signals.Different from existing methods that predict human poses from RF signals at the signal level directly,we consider the structure difference between the RF signals and the human poses,propose a transformation of the RF signals to the pose domain at the feature level based on the optimal transport(OT)theory,and generate human poses from the transformed features.To evaluate RFPose-OT,we build a radio system and a multi-view camera system to acquire the RF signal data and the ground-truth human poses.The experimental results in a basic indoor environment,an occlusion indoor environment,and an outdoor environment demonstrate that RFPose-OT can predict 3D human poses with higher precision than state-of-the-art methods. | Cong YU Dongheng ZHANG ZhiWU Zhi LU Chunyang XIE Yang HU Yan CHEN | 2023 | Frontiers of Information Technology & Electronic Engineering2023,24,10: | 1 |
| 17 | Computer-integrated manufacturing, cyber-physical systems and cloud manufacturing- concepts and relationships显示文摘 | YU Chunyang XU Xun LU Yuqian | 2015 | Manufacturing Letters2015,6,: | 1 |
| 18 | Electrophoretic deposition of carbon nanotubes–polyacrylic acid composite film electrode for capacitive deionization显示文摘 | Chunyang Nie Likun Pan Yong Liu Haibo Li Taiqiang Chen Ting Lu Zhuo Sun | 2012 | Electrochimica Acta2012,,: | 1 |
| 19 | Prepara- tion and evaluation of molecularly imprinted polymeric microspheres by aqueous suspension polymerization for use as a high-per显示文摘 | Lai Jiaping Lu Xianyu Lu Chunyang | 2001 | Analytica Chimica Acta2001,442,: | 1 |
| 20 | Rosuvastatin, Identified From a Zebrafish Chemical Genetic Screen for Antiangiogenic Compounds, Suppresses the Growth of Prostate Cancer显示文摘 | Chunyang Wang Weiyang Tao Youdong Wang Jennifer Bikow Bingxin Lu Armand Keating Subodh Verma Thomas G. Parker Ruifa Han Xiao-Yan Wen | 2010 | European Urology2010,,3: | 1 |