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132篇 您的检索式:作者名="YU Xiaofei"
    题名 作者 年代 出处 被引量
1Freeze-thaw Effects on Sorption/Desorption of Dissolved Organic Carbon in Wetland Soils显示文摘The effects of freeze-thaw cycles on sorption/desorption of dissolved organic carbon (DOC) in two wetland soils and one reclaimed wetland soil were investigated. DOC concentrations added were 0-600 mg/L. Laboratory incubations of sorption/desorption of DOC had been carried out at -15℃ for 10 h, and then at +5℃ for 13 h. Soil samples were refrozen and thawed subsequently for 5 cycles. Initial Mass model was used to describe sorption behavior of DOC. The results indicate that freeze-thaw cycles can significantly increase the sorption capacity of DOC and reduce the desorption capacity of DOC in the three soils. The freeze-thaw effects on desorption of DOC in soils increase with the increasing freeze-thaw cycles. The conversion of natural wetlands to soybean farmland can decrease the sorption capacity and increase the desorption capacity of DOC in soils. Global warming and reclamation may increase DOC release, and subsequently increase the loss of carbon and the emission of greenhouse gas.YU Xiaofei ZHANG Yuxia ZHAO Hongmei LU Xianguo WANG Guoping 2010Chinese Geographical Science2010,20,3:12
2Sequential fate-switches in stem-like cells drive the tumorigenic trajectory from human neural stem cells to malignant glioma显示文摘Glioblastoma(GBM)is an incurable and highly heterogeneous brain tumor,originating from human neural stem/progenitor cells(hNSCs/hNPCs)years ahead of diagnosis.Despite extensive efforts to characterize hNSCs and end-stage GBM at bulk and single-cell levels,the de novo gliomagenic path from hNSCs is largely unknown due to technical difficulties in early-stage sampling and preclinical modeling.Here,we established two highly penetrant hNSC-derived malignant glioma models,which resemble the histopathology and transcriptional heterogeneity of human GBM.Integrating time-series analyses of whole-exome sequencing,bulk and single-cell RNA-seq,we reconstructed gliomagenic trajectories,and identified a persistent NSC-like population at all stages of tumorigenesis.Through trajectory analyses and lineage tracing,we showed that tumor progression is primarily driven by multi-step transcriptional reprogramming and fate-switches in the NSC-like cells,which sequentially generate malignant heterogeneity and induce tumor phenotype transitions.We further uncovered stage-specific oncogenic cascades,and among the candidate genes we functionally validated C1QL1 as a new glioma-promoting factor.Importantly,the neurogenic-to-gliogenic switch in NSC-like cells marks an early stage characterized by a burst of oncogenic alterations,during which transient AP-1 inhibition is sufficient to inhibit gliomagenesis.Together,our results reveal previously undercharacterized molecular dynamics and fate choices driving de novo gliomagenesis from hNSCs,and provide a blueprint for potential early-stage treatment/diagnosis for GBM.Xiaofei Wang Ran Zhou Yanzhen Xiong Lingling Zhou Xiang Yan Manli Wang Fan Li Chuanxing Xie Yiming Zhang Zongyao Huang Chaoqiong Ding Kaidou Shi Weida Li Yu Liu Zhongwei Cao Zhen-Ning Zhang Shengtao Zhou Chong Chen Yan Zhang Lu Chen Yuan Wang 2021Cell Research2021,31,6:8
3Guiding T lymphopoiesis from pluripotent stem cells by defined transcription factors显示文摘Achievement of immunocompetent and therapeutic T lymphopoiesis from pluripotent stem cells(PSCs)is a central aim in T cell regenerative medicine.To date,preferentially reconstituting T lymphopoiesis in vivo from PSCs remains a practical challenge.Here we documented that synergistic and transient expression of Runx1 and Hoxa9 restricted in the time window of endothelial-to-hematopoietic transition and hematopoietic maturation stages in a PSC differentiation scheme(iR9-PSC)in vitro induced preferential generation of engraftable hematopoietic progenitors capable of homing to thymus and developing into mature T cells in primary and secondary immunodeficient recipients.Single-cell transcriptome and functional analyses illustrated the cellular trajectory of T lineage induction from PSCs,unveiling the T-lineage specification determined at as early as hemogenic endothelial cell stage and identifying the bona fide pre-thymic progenitors.The induced T cells distributed normally in central and peripheral lymphoid organs and exhibited abundant TCRαβrepertoire.The regenerative T lymphopoiesis restored immune surveillance in immunodeficient mice.Furthermore,gene-edited iR9-PSCs produced tumor-specific T cells in vivo that effectively eradicated tumor cells.This study provides insight into universal generation of functional and therapeutic T cells from the unlimited and editable PSC source.Rongqun Guo Fangxiao Hu Qitong Weng Cui Lv Hongling Wu Lijuan Liu Zongcheng Li Yang Zeng Zhijie Bai Mengyun Zhang Yuting Liu Xiaofei Liu Chengxiang Xia Tongjie Wang Peiqing Zhou Kaitao Wang Yong Dong Yuxuan Luo Xiangzhong Zhang Yuxian Guan Yang Geng Juan Du Yangqiu Li Yu Lan Jiekai Chen Bing Liu Jinyong Wang 2020Cell Research2020,30,1:7
4Highly conductive dodecaborate/MXene composites for high performance supercapacitors显示文摘With the increasingly prominent energy and environmental issues,the supercapacitors,as a highly efficient and clean energy conversion and storage devices,meet the requirements well.However,it is still a challenge to enhance the capacitance and energy density of supercapacitors.A novel and highly conductive dodecaborate/MXene composites have been designed for high performance supercapacitors.The surface charge property of MXene was modified by a simple ultrasonic treatment with ammonium ion,and the dodecaborate ion can be inserted into the inner surface of MXene by electrostatic adsorption.Due to the unique icosahedral cage conjugate structure formed by the B-B bond and the highly delocalized three-dimensionalπbond structure of the electrons,the negative charge is delocalied on the whole dodecaborate ion,which reduces the ability to bind to cations.Therefore,the cations can move easily,and the dodecaborate can act as a“lubricant”for ion diffusion between the MXene layers,which significantly improves the ion transfer rate of supercapacitors.The dodecaborate/MXene composites can achieve an extremely high specific capacitance of 366 F.g^-1 at a scan rate of 2 mV.s^-1,which is more than eight times higher than that of MXene(43 F1-)at the same scan rate.Our finding provides a novel route on the fabrication of the high performance supercapacitors.Zhenxing Li Chang Ma Yangyang Wen Zhiting Wei Xiaofei Xing Junmei Chu Chengcheng Yu Kaili Wang Zhao-Kui Wang 2020Nano Research2020,13,1:7
5Sufficient and necessary conditions of separability for bipartite pure states in infinite-dimensional systems显示文摘The PHC criterion and the realignment criterion for pure states in infinite-dimensional bipartite quantum systems are given. Furthermore, several equivalent conditions for pure states to be separable are generalized to infinite-dimensional systems.GUO Yu QI XiaoFei HOU JinChuan 2011Chinese Science Bulletin2011,56,9:7
6Fe-Mn-sepiolite as an effective heterogeneous Fenton-like catalyst for the decolorization of reactive brilliant blue显示文摘在把 Fe-Mn-sepiolite 用作异构的象 Fenton 一样催化剂的一个水的答案的反应灿烂的蓝色的 decolorization 的研究被执行了。Fourier 变换红外线(FTIR ) 催化剂的系列显示出 Fe-O 的弯曲颤动。催化剂的 X 射线衍射(XRD ) 模式显示出 -Fe2O3,-Fe2O3 和 MnO 的典型衍射山峰。中央合成设计(电荷耦合器件) 结合了的四个因素反应表面方法论(RSM ) 被使用评估并且优化重要变量(催化剂增加,氢过氧化物剂量,起始的 pH 值和起始的染料集中) 。反应什么时候调节,是催化剂剂量 = 0.4 g,[H 2 O 2]= 0.3 mL, pH = 2.5,[反应灿烂的蓝色] o = 50mg 愠摮琠瑯污 ?? 潣瑮湥 ? 愠摮攠' 乜畺 { 慥汢? 湡 ? 慣'R 湯瑡 ? 湍攠數瑲琠敨朠敲瑡獥 ? 湩汦敵据獥 ? 桷汩 ? 硥档湡 ??遤 吗??Chengyuan SU Weiguang LI Xingzhe LIU Xiaofei HUANG Xiaodan YU 2016Frontiers of Environmental Science & Engineering2016,10,1:6
7High-quality Arabidopsis thaliana Genome Assembly with Nanopore and HiFi Long Reads显示文摘Arabidopsis thaliana is an important and long-established model species for plant molecular biology,genetics,epigenetics,and genomics.However,the latest version of reference genome still contains a significant number of missing segments.Here,we reported a high-quality and almost complete Col-0 genome assembly with two gaps(named Col-XJTU)by combining the Oxford Nanopore Technologies ultra-long reads,Pacific Biosciences high-fidelity long reads,and Hi-C data.The total genome assembly size is 133,725,193 bp,introducing 14.6 Mb of novel sequences compared to the TAIR10.1 reference genome.All five chromosomes of the Col-XJTU assembly are highly accurate with consensus quality(QV)scores>60(ranging from 62 to 68),which are higher than those of the TAIR10.1 reference(ranging from 45 to 52).We completely resolved chromosome(Chr)3 and Chr5 in a telomere-to-telomere manner.Chr4 was completely resolved except the nucleolar organizing regions,which comprise long repetitive DNA fragments.The Chrl centromere(CEN1),reportedly around 9 Mb in length,is particularly challenging to assemble due to the presence of tens of thousands of CEN180 satellite repeats.Using the cutting-edge sequencing data and novel computational approaches,we assembled a 3.8-Mb-long CEN1 and a 3.5-Mb-long CEN2.We also investigated the structure and epigenetics of centromeres.Four clusters of CEN180 monomers were detected,and the centromere-specific histone H3-like protein(CENH3)exhibited a strong preference for CEN180 Cluster 3.Moreover,we observed hypomethylation patterns in CENH3-enriched regions.We believe that this high-quality genome assembly,Col-XJTU,would serve as a valuable reference to better understand the global pattern of centromeric polymorphisms,as well as the genetic and epigenetic features in plants.Bo Wang Xiaofei Yang Yanyan Jia Yu Xu Peng Jia Ningxin Dang Songbo Wang Tun Xu Xixi Zhao Shenghan Gao Quanbin Dong Kai Ye 2022Genomics, Proteomics & Bioinformatics2022,20,1:6
8A COVID-19 mRNA vaccine encoding SARS-CoV-2 virus-like particles induces a strong antiviral-like immune response in mice显示文摘Dear Editor,Since the beginning of this century,humanity has been struck three times by the coronavirus outbreak.The most recent one is caused by the SARS-CoV-2 virus,which was first reported in January 2020 and spread rapidly worldwide,developing into a global coronavirus disease pandemic coded COVID-19.1 By July 28,2020,SARS-CoV-2 has caused over sixteen million COVID-19 cases worldwide and 650,805 deaths.2 Such a grave situation has made the development of a COVID-19 vaccine imperative and urgent.Jing Lu Guoliang Lu Shudan Tan Jia Xia Hualong Xiong Xiaofei Yu Qingqing Qi Xiang Yu Li Li Hang Yu Ningshao Xia Tianying Zhang Yingjie Xu Jinzhong Lin 2020Cell Research2020,30,10:5
9Knockdown of long non-coding RNA LCPAT1 inhibits autophagy in lung cancer显示文摘Objective: Long non-coding RNAs(lnc RNAs) are involved in numerous biological processes in lung cancer cells. In our previous studies, we identified a lnc RNA, ENST00000439577, which is highly expressed in lung carcinomas, and termed it lung cancer progression-associated transcript 1(LCPAT1). To characterize the role of LCPAT1 in lung cancer, we conducted the current study.Methods: Expression of LCPAT1 and autophagy-associated markers in tumor tissues and lung cancer cell lines was determined by real-time quantitative polymerase chain reaction(q PCR). Hematoxylin and eosin(HE) staining, q PCR, Western blot, and immunohistochemistry were performed to evaluate xenografted tumor tissues. Autophagy induced by rapamycin was detected by Western blot and immunofluorescence in lung cancer cell lines.Results: Expression of LCPAT1 and microtubule-associated protein 1 light chain 3 beta(LC3B) was positively correlated in lung cancer. Knockdown of LCPAT1 inhibited tumor growth and suppressed cell autophagy in vivo. Moreover, LCPAT1 knockdown in lung cancer cell lines resulted in decreased autophagy-associated gene expression and alleviated the cell autophagy induced by rapamycin.Conclusions: We speculate that LCPAT1 plays a crucial role in regulating autophagy in lung cancer.Xiao Yu Xiaofei Ye Hongyan Lin Nannan Feng Sumeng Gao Xiaohong Zhang Yu Wang Herbert Yu Xiaobei Deng Biyun Qian 2018Cancer Biology & Medicine2018,15,3:5
10Glucocorticoid receptor modulates myeloid-derived suppressor cell function via mitochondrial metabolism in immune thrombocytopenia显示文摘Myeloid-derived suppressor cells(MDSCs)are a heterogeneous population of immature cells and natural inhibitors of adaptive immunity.Intracellular metabolic changes in MDSCs exert a direct immunological influence on their suppressive activity.Our previous study demonstrated that high-dose dexamethasone(HD-DXM)corrected the functional impairment of MDSCs in immune thrombocytopenia(ITP);however,the MDSC population was not restored in nonresponders,and the mechanism remained unclear.In this study,altered mitochondrial physiology and reduced mitochondrial gene transcription were detected in MDSCs from HD-DXM nonresponders,accompanied by decreased levels of carnitine palmitoyltransferase-1(CPT-1),a rate-limiting enzyme in fatty acid oxidation(FAO).Blockade of FAO with a CPT-1 inhibitor abolished the immunosuppressive function of MDSCs in HD-DXM responders.We also report that MDSCs from ITP patients had lower expression of the glucocorticoid receptor(GR),which can translocate into mitochondria to regulate the transcription of mitochondrial DNA(mtDNA)as well as the level of oxidative phosphorylation.It was confirmed that the expression of CPT-1 and mtDNA-encoded genes was downregulated in GR-siRNA-treated murine MDSCs.Finally,by establishing murine models of active and passive ITP via adoptive transfer of DXM-modulated MDSCs,we confirmed that GR-silenced MDSCs failed to alleviate thrombocytopenia in mice with ITP.In conclusion,our study indicated that impaired aerobic metabolism in MDSCs participates in the pathogenesis of glucocorticoid resistance in ITP and that intact control of MDSC metabolism by GR contributes to the homeostatic regulation of immunosuppressive cell function.Yu Hou Jie Xie Shuwen Wang Daqi Li Lingjun Wang Haoyi Wang Xiaofei Ni Shaoqiu Leng Guosheng Li Ming Hou Jun Peng 2022Cellular & Molecular Immunology2022,19,7:4
11Fast multi-parameter estimation and localization for MIMO radar显示文摘This paper addresses the problem of four-dimensional angle and Doppler frequency estimation for bistatic multiple-input multiple-output(MIMO) radar with arbitrary arrays in spatial colored noise. A novel method for joint estimation of Doppler frequency, two-dimensional(2D) direction of departure and 2D direction of arrival based on the propagator method(PM) for arbitrary arrays is discussed. A special matrix is constructed to eliminate the influence of spatial colored noise. The four-dimensional(4D) angle and Doppler frequency are extracted from the matrix and the threedimensional(3D) coordinates of the targets are then calculated on the basis of these angles. The proposed algorithm provides a lower computational complexity and has a parameter estimation very close to that of the ESPRIT algorithm and the DOA-matrix algorithm in the high signal to noise ratio and the Cram ′er-Rao bound(CRB) is given. Furthermore, multi-dimensional parameters can be automatically paired by this algorithm to avoid performance degradation resulting from wrong pairing. Simulation results demonstrate the effectiveness of the proposed method.Lingyun Xu Xiaofei Zhang Miao Yu 2015Journal of Systems Engineering and Electronics2015,26,3:4
12Targeting orthotopic gliomas with renal-clearable luminescent gold nanoparticles显示文摘在 nanomedicine 的主要临床的翻译挑战是在主要机关与举起和非可能减解的 nanoparticles (NP ) 的长期的保留联系的毒性的潜力。经历肾的清理的无机的 NP 的发展能潜在地解决这颗重要 biosafety 担心。然而,能被肾排泄的无机的 NP 是否仍然保持能够与差的渗透指向肿瘤,仍然保持不清楚。Glioblastoma multiforme,最恶意的 orthotopic 大脑肿瘤,因为血大脑障碍和反应 microglia 和 macroglia 的柔韧的血肿瘤障碍,在肿瘤微型环境为 NP 交货提出唯一的挑战。此处,我们使用了 orthotopic 调查在直径的 3 nm 的谷胱甘肽涂的金 nanoparticles (AuNPs ) 的被动指向的鼠科的 glioma 模型经历没能经历肾的清理的肾的清理和 18-nm AuNPs。显著地,我们报导 3-nm AuNPs 能与更高的效率指向 intracranial 肿瘤纸巾(2.3ver 在 1.0 妈骑车的 100Chuanqi Peng Xiaofei Gao Jing Xu Bujie Du Xuhui Ning Shaoheng Tang Robert M. Bachoo Mengxiao Yu Woo-Ping Ge Jie Zheng 2017Nano Research2017,10,4:3
13H7N9 virus infection triggers lethal cytokine storm by activating gasdermin E-mediated pyroptosis of lung alveolar epithelial cells显示文摘The H7N9 influenza virus emerged in China in 2013,causing more than 1560 human infections,39% of which were fatal.A ‘cytokine storm’ in the lungs of H7N9 patients has been linked to a poor prognosis and death;however,the underlying mechanism that triggers the cytokine storm is unknown.Here,we found that efficient replication of the H7N9 virus in mouse lungs activates gasdermin E(GSDME)-mediated pyroptosis in alveolar epithelial cells,and that the released cytosolic contents then trigger a cytokine storm.Knockout of Gsdme switched the manner of death of A549 and human primary alveolar epithelial cells from pyroptosis to apoptosis upon H7N9 virus infection,and Gsdme knockout mice survived H7N9 virus lethal infection.Our findings reveal that GSDME activation is a key and unique mechanism for the pulmonary cytokine storm and lethal outcome of H7N9 virus infection and thus opens a new door for the development of antivirals against the H7N9 virus.Xiaopeng Wan Jiqing Li Yupeng Wang Xiaofei Yu Xijun He Jianzhong Shi Guohua Deng Xianying Zeng Guobin Tian Yanbing Li Yongping Jiang Yuntao Guan Chengjun Li Feng Shao Hualan Chen 2022National Science Review2022,9,1:3
14Controlled synthesis of T-shaped BiVO 4 and enhanced visible light responsive photocatalytic activity显示文摘Shuying Dong Chongfei Yu Yukun Li Yihui Li Jianhui Sun Xiaofei Geng 2014Journal of Solid State Chemistry2014,,:3
15The association between metabolic abnormality and endometrial cancer: A large case-control study in China显示文摘Yan Zhang Zhiwei Liu Xinchun Yu Xiaofei Zhang Shiming Xiaoduan Chen Bingjian 2010Gynecologic Oncology2010,,1:3
16Influence of formamide and water on the properties of thermoplastic starch/poly(lactic acid) blends显示文摘Ning Wang Jiugao Yu Peter R. Chang Xiaofei Ma 2007Carbohydrate Polymers2007,,1:2
17Experimental and Numerical Investigation on Erosion Corrosion of the Air Cooler Tube Bundle in a Residue Hydrotreating Unit显示文摘Corrosion leakage occurred in the 14th tube bundle in the first row of a residual oil hydrotreating air cooler after operating for two years.The failure location was 0.5 m from the outlet header box.In this paper,the erosion corrosion of the air cooler tube bundle was investigated by experimental and numerical methods.Visual inspection,scanning electron microscopy(SEM),and X-ray diffraction(XRD)experiments were performed,and the failure morphology and material composition confirmed that the damage was caused by erosion corrosion.The shear stress transport k–ωturbulence model(SST-k–ω)was then used to investigate the flow and erosion corrosion characteristics,combined with mass transfer,corrosion rate,and ionization equilibrium models.The numerical simulation results revealed that the water phase volume fraction increased with flow and heat transfer in the fluid,which increased the mass flow rate and concentration of hydrogen sulfide.The mass transfer coefficient and corrosion rate were proposed as important parameters to characterize erosion corrosion.Moreover,the local concentration of wall shear stress was found to increase the risk of erosion corrosion.The predicted high-risk area was consistent with the actual failure area,which verified that this failure incident was attributable to erosion corrosion by the water phase.Jin Haozhe Yu Chenyang Gu Youjie Qian Guangwei Liu Xiaofei Ou Guofu Jia Yongna 2022China Petroleum Processing & Petrochemical Technology2022,24,4:2
18Review of Rapid Transformation of Floodplain Wetlands in Northeast China: Roles of Human Development and Global Environmental Change显示文摘Northeast China is the region with the largest area of wetlands in China. The Sanjiang Plain and the Songnen Plain are large freshwater marsh distribution regions that are affected by climate warming and by the increasing frequency and density of extreme weather and are the regions most subject to disturbances by human activities in Northeast China. The wetlands of the Sanjiang Plain and the Songnen Plain have shrunk severely in the past 60 years, and wetland functions have been reduced substantially because of climate change, unreasonable land use, fire episodes, engineering and construction works and urbanization. Large-scale agricultural development started in the 1950 s has been the most important driving factor for wetland loss and degradation in the Sanjiang Plain. Water shortage has been the most important factor for degradation and fragmentation of wetlands in the Songnen Plain. To mitigate wetland degradation and better protect wetlands, special regulations, long-term mechanisms and technical support of wetland protection should be established. A wetland compensation program should be implemented, and technologies for increasing the adaptive capacity of wetlands should be developed. Moreover, it is most important to find the balanced threshold between agricultural development and wetland protection.YU Xiaofei DING Shanshan ZOU Yuanchun XUE Zhenshan LYU Xianguo WANG Guoping 2018Chinese Geographical Science2018,28,4:2
19An adaptive switching scheme for iterative computing in the cloud显示文摘Yu ZHANG Xiaofei LIAO Hai JIN Li LIN Feng LU 2014Frontiers of Computer Science2014,8,6:2
20Characterization of DNA damage response deficiency in pancreatic cancer patients from China显示文摘To the editor,Pancreatic ductal adenocarcinoma(PDAC)has the worst prognosis among all common malignant solid tumors,with a 5-year overall survival(OS)rate of less than 10%[1].Few effective targets for anticancer ther-apy have been confirmed in pancreatic cancer.Recently,it was substantiated that pancreatic cancer patients carry-ing deleterious mutations of the DNA damage response(DDR)genes are more likely to benefit from platinum-based chemotherapy[2]and poly(adenosine diphosphate-ribose)polymerase(PARP)inhibitor[3].Xiaofei Zhang Tiebo Mao Bei Zhang Haiyan Xu Jiujie Cui Feng Jiao Dongqin Chen Yu Wang Jiong Hu Qing Xia Shumin Li Ming Yue Jingyu Ma Jiayu Yao Yongchao Wang Xiao Zhang Shiqing Chen Yuezong Bai Yuexiang Wang Xuebin Zhang Qiang Liu Yongwei Sun Deliang Fu Yingbin Liu Lei Xiong Liwei Wang 2022Cancer Communications2022,42,1:2
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