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16篇 您的检索式:作者名="Youyi Wu"
    题名 作者 年代 出处 被引量
1Galectin-3-centered paracrine network mediates cardiac inflammation and fibrosis upon β-adrenergic insult显示文摘Rapid over-activation of β-adrenergic receptors (β-AR) following acute stress initiates cardiac inflammation and injury by activating interleukin-18 (IL-18),however,the process of inflammation cascades has not been fully illustrated.The present study aimed to determine the mechanisms of cardiac inflammatory amplification following acute sympathetic activation.With bioinformatics analysis,galectin-3 was identified as a potential key downstream effector of β-AR and IL-18 activation.The serum level of galectin-3 was positively correlated with norepinephrine or IL-18 in patients with chest pain.In the heart of mice treated with β-AR agonist isoproterenol (ISO,5 mg kg^(-1)),galectin-3 expression was upregulated markedly later than IL-18 activation,and Nlrp3^(-/-)and Il18^(-/-)mice did not show ISO-induced galectin-3 upregulation.It was further revealed that cardiomyocyte-derived IL-18 induced galectin-3 expression in macrophages following ISO treatment.Moreover,galectin-3deficiency suppressed ISO-induced cardiac inflammation and fibrosis without blocking ISO-induced IL-18 increase.Treatment with a galectin-3 inhibitor,but not a β-blocker,one day after ISO treatment effectively attenuated cardiac inflammation and injury.In conclusion,galectin-3 is upregulated to exaggerate cardiac inflammation and injury following acute β-AR activation,a galectin-3 inhibitor effectively blocks cardiac injury one day after β-AR insult.Guomin Hu Jimin Wu Huijun Gu Xiangning Deng Wenli Xu Shan Feng Shuaixing Wang Yao Song Zhengda Pang Xiuling Deng Aleksandr E.Vendrov Nageswara R.Madamanchi Marschall S.Runge Xinyu Wang Youyi Zhang Han Xiao Erdan Dong 2023Science China(Life Sciences)2023,66,5:3
2Pathological matrix stiffness promotes cardiac fibroblast differentiation through the POU2F1 signaling pathway显示文摘Cardiac fibroblast(CF)differentiation into myofibroblasts is a crucial cause of cardiac fibrosis,which increases in the extracellular matrix(ECM)stiffness.The increased stiffness further promotes CF differentiation and fibrosis.However,the molecular mechanism is still unclear.We used bioinformatics analysis to find new candidates that regulate the genes involved in stiffnessinduced CF differentiation,and found that there were binding sites for the POU-domain transcription factor,POU2F1(also known as Oct-1),in the promoters of 50 differentially expressed genes(DEGs)in CFs on the stiffer substrate.Immunofluorescent staining and Western blotting revealed that pathological stiffness upregulated POU2F1 expression and increased CF differentiation on polyacrylamide hydrogel substrates and in mouse myocardial infarction tissue.A chromatin immunoprecipitation assay showed that POU2F1 bound to the promoters of fibrosis repressors IL1R2,CD69,and TGIF2.The expression of these fibrosis repressors was inhibited on pathological substrate stiffness.Knockdown of POU2F1 upregulated these repressors and attenuated CF differentiation on pathological substrate stiffness(35 kPa).Whereas,overexpression of POU2F1 downregulated these repressors and enhanced CF differentiation.In conclusion,pathological stiffness upregulates the transcription factor POU2F1 to promote CF differentiation by inhibiting fibrosis repressors.Our work elucidated the crosstalk between CF differentiation and the ECM and provided a potential target for cardiac fibrosis treatment.Mingzhe Li Jimin Wu Guomin Hu Yao Song Jing Shen Junzhou Xin Zijian Li Wei Liu Erdan Dong Ming Xu Youyi Zhang Han Xiao 2021Science China(Life Sciences)2021,64,2:3
3Autophagy mediates the secretion of macrophage migration inhibitory factor from cardiomyocytes upon serum-starvation显示文摘Macrophage migration inhibitory factor(MIF) is an inflammatory cytokine. It is elevated early in the blood of acute myocardial infarction patients. However, it is unclear whether and how MIF is released. This study investigated the cellular source and mechanism of MIF release from hearts. An ischemia-mimic treatment induced the secretion of MIF from neonatal rat cardiomyocytes but not from fibroblasts. The treatment did not cause significant leakage of lactate dehydrogenase, suggesting that ischemia induced the MIF secretion without causing severe cell damage. Plasma samples from patients with acute chest pain at the emergency department were collected for the detection of MIF. MIF levels in patients with acute coronary syndrome(ACS)increased early, when cardiac injury markers were not yet elevated, suggesting that ischemia can induce MIF secretion before the occurrence of severe myocardial damage. Serum-starvation caused MIF secretion from rat cardiomyocytes and Langendorffperfused rat hearts. The secretion was suppressed by the inhibition of autophagy by inhibitors or by silencing of Atg5. In conclusion, serum-starvation induces the secretion of MIF from cardiomyocytes via autophagy dependent pathway. Clarifying the mechanism of MIF secretion will be helpful for its application in the early diagnosis and treatment of ACS.Jimin Wu Xiangning Deng Juan Gao Wei Gao Han Xiao Xinyu Wang Youyi Zhang 2019Science China(Life Sciences)2019,62,8:2
4Preparation and characterization of PES/TiO 2 composite membranes显示文摘Guiping Wu Shuying Gan Longzhe Cui Youyi Xu 2008Applied Surface Science2008,,21:1
5Single-molecule imaging reveals the stoichiometry change of epidermal growth factor receptor during transactivation by β_2-adrenergic receptor显示文摘Stimulation of G protein-coupled receptors(GPCRs) can lead to the transactivation of the epidermal growth factor receptors(EGFR). The cross-communication between the two signaling pathways regulates several important physiological or pathological processes. However, the molecule mechanism underlying EGFR transactivation remains poorly understood. Here, we aim to study the GPCR-mediated EGFR transactivation process using the single-molecule fluorescence imaging and tracking approach.We found that although EGFR existed as monomers at the plasma membrane of resting cells, they became dimers and thus diffused slower following the activation of β2-adrenergic receptor(β2-AR) by isoproterenol(ISO). We further proved thatβ2-AR-mediated changes of EGFR in stoichiometry and dynamics were mediated by Src kinase. Thus, the observations obtained via the single-molecule imaging and tracking methods shed new insights into the molecular mechanism of EGFR transactivation at single molecule level.Mingliang Zhang Kangmin He Jimin Wu Nan Li Jinghe Yuan Wei Zhou Zi Ye Zijian Li Han Xiao Zhizhen Lv Youyi Zhang Xiaohong Fang 2017Science China Chemistry2017,60,10:1
6Unified stress-strain model of concrete for FRP-confined columns显示文摘WEI YOUYI WU YUFEI 2012Construction and Building Materials2012,26,1:1
7Polymorphism study of nine SNPs associated with subjective response to alcohol in Chinese Han, Hui, Tibetan, Mongolian and Uygur populations显示文摘Heavy alcohol drinking is a major public health problem,causing a large disease,social and economic burden in societies.Subjective response (SR) to alcohol is an intermediate characteristic of heavy drinking.A variety of candidate genes have been reported to be associated with SR to alcohol.In this study,we investigated nine single nucleotide polymorphisms (SNPs) related to SR to alcohol in healthy individuals from five Chinese ethnic groups,the Han,Hui,Tibetan,Mongolian and Uygur populations,and a total of 584 bloodstain samples were collected.The nine SNPs included four SNPs in alcohol-metabolizing genes (ADH1B,ADH1C,ALDH2 and CYP2E1*5B) and five SNPs in genes of neurobiological pathways (GABRA2,OPRM1,CHRNA3,HYKK and SLC6A4).A SNaPshot analysis method was developed to type these SNPs simultaneously,and all samples were typed successfully.Statistical analyses of the allele frequencies indicated that the frequencies of all SNPs,except for ADH1C,showed varying degrees of difference in the five studied ethnic groups.Tibetans showed the highest frequencies of risk alleles for heavy drinking at most loci.The genetic polymorphic differences found in this study revealed the variation in genetic susceptibility to heavy drinking in the studied populations.Qingtao Wei Yi Ye Fan Chen Jienan Li Hao Wu Yingqiang Fu Youyi Yan Linchuan Liao 2018Forensic Sciences Research2018,3,2:1
8Quantitative trait loci for morphometric traits in multiple families of common carp(Cyprinus carpio)显示文摘Quantitative trait locus(QTL) mapping is frequently used to understand the genetic architecture of quantitative traits.Herein,we performed a genome scanfor QTL affecting the morphometric characters in eight full-sib families containing 522 individuals using different statistical methods(Sib-pair and half-sib model).A total of 194 QTLs were detected in 25 different regions on 10 linkage groups(LGs).Among them,37 QTLs on five LGs(eight,13,24,40 and 45) were significant(5%genome-wide level),while the remaining 40(1%chromosome-wide level) and 117(5%chromosome-wide level) indicated suggestive effect on those traits.Heritabilities for most morphometric traits were moderate to high,ranging from 0.21 to 0.66,with generally strong phenotypic and genetic correlations between the traits.A large number of QTLs for morphometric traits were co-located,consistent with their high correlations,and may reflect pleiotropic effect on the same genes.Biological pathways were mapped for possible candidate genes on QTL regions.One significantly enriched pathway was identified onLG45,which had a P-value of 0.04 and corresponded to the 'regulation of actin cytoskeleton pathway'.The results are expected to be useful in marker-assisted selection(MAS) and provide valuable information for the study of gene pathway for morphometric and growth traits of the common carp.Xianhu Zheng Youyi Kuang Weihua Lv Dingchen Cao Zhipeng Sun Wu Jin Xiaowen Sun 2017Science China(Life Sciences)2017,60,3:1
9Extreme learning machine based wind speed estimation and sensorless control for wind turbine power generation system显示文摘Si Wu Youyi Wang Shijie Cheng 2013Neurocomputing2013,,:1
10Functional α1-adrenoceptor subtypes in human submandibular gland显示文摘Huang Zan Wu Liling Zhang Youyi 2006J Dent Res2006,85,:1
11A novel submerged rotating membrane bioreactor and reversible membrane fouling control显示文摘Wu Guiping Cui Longzhe Xu Youyi 2008Desalination2008,228,:1
12Determination of phenol in landfill leachate by using microchip capillary electeophoresis with end-channel amperometric detection显示文摘WU Youyi LIN Jinming 2006J Sep Sci2006,,29:1
13Determination of Triazine Herbicides in Environmental Water Samples by Acetonitrile Inorganic Salt Aqueous Two-Phase Microextraction System显示文摘Acetonitrile inorganic salt aqueous two-phase extraction method was established for the determination of triazine herbicides(simeton,cyanazine,desmetryn,terbumeton,terbuthylazine and dimethametryn)in environmental water samples by high-performance liquid chromatography(HPLC).The extraction solvents types and volume of acetonitrile,the inorganic salt types and amount of(NH_(4))_(2)SO_(4),extraction time and pH of sample solution were optimized by single-factor experiment and central composite design.Under the optimum extraction conditions,all linear ranges were obtained with coefficients of determination(r)≥0.9993.The limits of detection for this proposed method were in the range of 0.16-0.28μg/L for six triazine herbicides.The developed method has been successfully applied to the analysis of target triazine herbicides from lake,canal and moat in real-world water samples.The recoveries of target analytes were in the range from 87.0 to 110.9%and the relative standard deviation was lower than 7.3%.Shiqian Gao Gege Wu Xiaomeng Li Jie Chen Youyi Wu Junxia Wang Zhanen Zhang 2018Journal of Analysis and Testing2018,2,4:0
14Radioanalytical chemistry for nuclear forensics in China:Progress and future perspective显示文摘A relatively new branch of science-nuclear forensics,aiming at providing the nature,origin,history and possible trafficking route of seized nuclear materials/devices,has been established and rapidly developed over decades to screen illicit nuclear activities.This highly interdisciplinary science is built upon a foundation of analytical chemistry,radiochemistry,nuclear physics,material sciences,geology,and other scientific disciplines,within which radiochemical methodologies and radioanalytical techniques play a key role.The present review provides a brief overview about the crucial aspects of nuclear forensics,including basic content,procedure,concerned elements,common separation,analytical method,and so on.The state of the art and recent progresses of nuclear forensics by research communities in China are reviewed,while selected examples and practical applications are emphasized.The challenges associated with this new area and on-going developments are highlighted and discussed.Yi Liu Xuepeng Shao Wenting Bu Zhen Qin Youyi Ni Fengcheng Wu Chuting Yang Xiaolin Wang 2022Chinese Chemical Letters2022,33,7:0
15Determination of Chlorpyrifos in Human Blood by Gas Chromatography-Mass Spectrometry显示文摘Gas chromatography-mass spectrometry method was developed for the qualitative and quantitative analyses of chlorpyrifos in human blood samples.The chlorpyrifos and parathion(internal standard)in human blood were extracted with a mixed solvent of hexane and acetonitrile.Chlorpyrifos was well separated from the internal standard.The linear range of chlorpyrifos was 0.01-2 μg/ml in blood.The limit of detection and limit of quantification were estimated at 0.002 and 0.01μg/ml,respectively.The inter-and intra-day precisions,accuracy,and recovery were assessed to verify this method.The results showed that the developed method is rapid,sensitive,and reliable.It is suitable for the determination of chlorpyrifos in forensic toxicological analysis and clinical diagnosis.Xinhua Dai Fei Fan Yi Ye Fan Chen Zhigui Wu Xiang Lu Qingtao Wei Jianxia Chen Youyi Yan Linchuan Liao 2017Journal of Forensic Science and Medicine2017,3,1:0
16iHair Recolorer: deep image-to-video hair color transfer显示文摘In this paper, we present i Hair Recolorer, the first deep-learning based approach for examplebased hair color transfer in videos. Given an input video and a reference image, our method automatically transfers the hair color in the reference image to the hair in the video while keeping other hair attributes(e.g.,shape, structure, and illumination) untouched, producing vivid color-transferred dynamic hair in the video.Our method performs the color transfer purely in the image space, without any form of intermediate 3 D hair reconstruction. The key enabler of our method is a carefully designed conditional generative model that explicitly disentangles various hair attributes into their corresponding sub-spaces, which are implemented as conditional modules integrated into a generator. We introduce a novel spatially and temporally normalized luminance map to represent the structure and illumination of the hair. Such a representation can largely ease the burden of the generator to synthesize temporally coherent vivid dynamic hairs in the video. We further introduce a cycle consistency loss to enforce the faithfulness of the generated results with respect to the reference. We demonstrate our system’s superiority in video hair color transfer by extensive experiments and comparisons to alternative methods.Keyu WU Lingchen YANG Hongbo FU Youyi ZHENG 2021Science China(Information Sciences)2021,64,11:0
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