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16篇 您的检索式:作者名="YANG Qimeng"
    题名 作者 年代 出处 被引量
1Inhibition of FOXO3a/BIM signaling pathway contributes to the protective effect of salvianolic acid A against cerebral ischemia/reperfusion injury显示文摘Salvianolic acid A(SalA) is an effective compound extracted from traditional Chinese medicine Salvia miltiorrhiza Bunge. The Forkhead box O3a(FOXO3a) signaling pathway plays crucial roles in the modulation of ischemia-induced cell apoptosis. However, no information about the regulatory effect of SalA on FoxO3a is available. To explore the anti-cerebral ischemia effect and clarify the therapeutic mechanism of SalA, SH-SY5Y cells and Sprague–Dawley rats were applied, which were exposed to oxygen glucose deprivation/reoxygenation(OGD/R) and middle cerebral artery occlusion/reperfusion(MCAO/R) injuries, respectively. The involved pathway was identified using the specific inhibitor LY294002. Results showed that SalA concentration-dependently inhibited OGD/R injury triggered cell viability loss. SalA reduced cerebral infarction, lowered brain edema, improved neurological function, and inhibited neuron apoptosis in MCAO/R rats, which were attenuated by the treatment of phosphatidylinositol-4,5-bisphosphate 3-kinase(PI3K) specific inhibitor LY294002. SalA time-and concentration-dependently upregulated the phosphorylation levels of protein kinase B(AKT) and its downstream protein FOXO3a. Moreover, the nuclear translocation of FOXO3a was inhibited by SalA both in vivo and in vitro, which was also reversed by LY294002. The above results indicated that SalA fought against ischemia/reperfusion damage at least partially via the AKT/FOXO3a/BIM pathway.Junke Song Wen Zhang Jinhua Wang Haiguang Yang Qimeng Zhou Haigang Wang Li Li Guanhua Du 2019Acta Pharmaceutica Sinica B2019,9,3:20
2Indiscriminate ssDNA cleavage activity of CRISPR-Cas12a induces no detectable off-target effects in mouse embryos显示文摘Dear Editor,Newly discovered characteristics like'collateral effect'or trans-cleavage in CRISPR-Cas13 and CRISPR-Cas12 systems have enabled their usage in nucleic acid detection(Gootenberg et al.2017,2018;Chen et al.2018).The collateral RNA cleavage of Cas13a has been reported to be harmful for cell development(Wang et al.2019;Buchman et al.2020).As a representative gene editor of CRISPR-Cas12 system,CRISPR-Cas12a(Cpf1)holds great potential for therapeutic applications in the future(Zetsche et al.2015;Koo et al.2018;Campa et al.2019).Yu Wei Yingsi Zhou Yajing Liu Wenqin Ying Ruiming Lv Qimeng Zhao Haibo Zhou Erwei Zuo Yidi Sun Hui Yang Changyang Zhou 2021Protein & Cell2021,12,9:2
3CasRx-mediated RNA targeting prevents choroidal neovascularization in a mouse model of age-related macular degeneration显示文摘RNA-targeting CRISPR system Cas13 offers an efficient approach for manipulating RNA transcripts in vitro.In this perspective,we provide a proof-of-concept demonstration that Cas13-mediated Vegfa knockdown in vivo could prevent the development of laser-induced CNV in mouse model of Age-related macular degeneration.Changyang Zhou Xinde Hu Cheng Tang Wenjia Liu Shaoran Wang Yingsi Zhou Qimeng Zhao Qiyu Bo Linyu Shi Xiaodong Sun Haibo Zhou Hui Yang 2020National Science Review2020,7,5:2
4H7N9 Influenza Viruses Are Transmissible in Ferrets by Respiratory Droplet显示文摘Qianyi Zhang Jianzhong Shi Guohua Deng Jing Guo Xianying Zeng Xijun He Huihui Kong Chunyang Gu Xuyong Li Jinxiong Liu Guojun Wang Yan Chen Liling Liu Libin Liang Yuanyuan Li Jun Fan Jinliang Wang Wenhui Li Lizheng Guan Qimeng Li Huanliang Yang Pucheng Che 2013Science2013,,6144:1
5Charac- terization of VT-instability in enhancement-mode A12 03- AIGaN/GaN MIS-HEMTs 显示文摘Lu Yunyou Yang Shu Jiang Qimeng 2013Physica Status Solidi C2013,10,11:1
6A quick and reliable image-based AI algorithm for evaluating cellular senescence of gastric organoids显示文摘Objective:Organoids are a powerful tool with broad application prospects in biomedicine.Notably,they provide alternatives to animal models for testing potential drugs before clinical trials.However,the number of passages for which organoids maintain cellular vitality ex vivo remains unclear.Methods:Herein,we constructed 55 gastric organoids from 35 individuals,serially passaged the organoids,and captured microscopic images for phenotypic evaluation.Senescence-associatedβ-galactosidase(SA-β-Gal),cell diameter in suspension,and gene expression reflecting cell cycle regulation were examined.The YOLOv3 object detection algorithm integrated with a convolutional block attention module(CBAM)was used to evaluate organoid vitality.Results:SA-β-Gal staining intensity;single-cell diameter;and expression of p15,p16,p21,CCNA2,CCNE2,and LMNB1 reflected the progression of aging in organoids during passaging.The CBAM-YOLOv3 algorithm precisely evaluated aging organoids on the basis of organoid average diameter,organoid number,and number×diameter,and the findings positively correlated with SA-β-Gal staining and single-cell diameter.Organoids derived from normal gastric mucosa had limited passaging ability(passages 1–5),before aging,whereas tumor organoids showed unlimited passaging potential for more than 45 passages(511 days)without showing clear senescence.Conclusions:Given the lack of indicators for evaluating organoid growth status,we established a reliable approach for integrated analysis of phenotypic parameters that uses an artificial intelligence algorithm to indicate organoid vitality.This method enables precise evaluation of organoid status in biomedical studies and monitoring of living biobanks.Ruixin Yang Yutong Du Wingyan Kwan Ranlin Yan Qimeng Shi Lu Zang Zhenggang Zhu Jianming Zhang Chen Li Yingyan Yu 2023Cancer Biology & Medicine2023,20,7:1
7A Hu sheep genome with the first ovine Y chromosome reveal introgression history after sheep domestication显示文摘The Y chromosome plays key roles in male fertility and reflects the evolutionary history of paternal lineages.Here,we present a de novo genome assembly of the Hu sheep with the first draft assembly of ovine Y chromosome(o MSY),using nanopore sequencing and Hi-C technologies.The o MSY that we generated spans 10.6 Mb from which 775 Y-SNPs were identified by applying a large panel of whole genome sequences from worldwide sheep and wild Iranian mouflons.Three major paternal lineages(HY1a,HY1b and HY2)were defined across domestic sheep,of which HY2 was newly detected.Surprisingly,HY2 forms a monophyletic clade with the Iranian mouflons and is highly divergent from both HY1a and HY1b.Demographic analysis of Y chromosomes,mitochondrial and nuclear genomes confirmed that HY2 and the maternal counterpart of lineage C represented a distinct wild mouflon population in Iran that diverge from the direct ancestor of domestic sheep,the wild mouflons in Southeastern Anatolia.Our results suggest that wild Iranian mouflons had introgressed into domestic sheep and thereby introduced this Iranian mouflon specific lineage carrying HY2 to both East Asian and Africa sheep populations.Ran Li Peng Yang Ming Li Wenwen Fang Xiangpeng Yue Hojjat Asadollahpour Nanaei Shangquan Gan Duo Du Yudong Cai Xuelei Dai Qimeng Yang Chunna Cao Weidong Deng Sangang He Wenrong Li Runlin Ma Mingjun Liu Yu Jiang 2021Science China(Life Sciences)2021,64,7:1
8H7N9 Influenza Viruses Are Transmissible in Ferrets by Respiratory Droplet显示文摘Qianyi Zhang Jianzhong Shi Guohua Deng Jing Guo Xianying Zeng Xijun He Huihui Kong Chunyang Gu Xuyong Li Jinxiong Liu Guojun Wang Yan Chen Liling Liu Libin Liang Yuanyuan Li Jun Fan Jinliang Wang Wenhui Li Lizheng Guan Qimeng Li Huanliang Yang Pucheng Che 2013Science2013,,6144:1
9Identifying the roles of Ce^(3+)-OH and Ce-H in the reverse water-gas shift reaction over highly active Ni-doped CeO_(2) catalyst显示文摘Nickel-CeO_(2)-based materials are commonly used for the thermal catalytic hydrogenation of CO_(2).However,high Ni loadings and low CO selectivity restrict their use in the reverse water–gas shift(RWGS)reaction.Herein,we demonstrate a highly active,robust,and low-Ni-doped(1.1 wt.%)CeO_(2) catalyst(1.0-Ni-CeO_(2)).The Ni-based-mass-specific CO formation rate reaches up to 1,542 mmol·gNi^(−1)·h^(−1) with 100%CO selectivity at 300°C for 100 h,among the best values reported in the literature.Density functional theory(DFT)and diffuse reflectance infrared Fourier transform spectroscopy(DRIFTS)results reveal that the enhanced catalytic activity is attributed to the abundant Ce–H species,while the high selectivity results from low CO affinity.More importantly,a new reaction mechanism is proposed,which involves the reduction of bicarbonate to generate formate intermediate and CO by the H−released from Ce–H species.The new findings in this work will benefit the design of economic,efficient,and robust catalysts for low-temperature RWGS reactions.Haidong Shen Yujuan Dong Shaowei Yang Yuan He Qimeng Wang Yueling Cao Wenbin Wang Tianshuai Wang Qiuyu Zhang Hepeng Zhang 2022Nano Research2022,15,7:1
10Xenopus GLP-1-based glycopeptides as dual glucagon-like peptide 1 receptor/glucagon receptor agonists with improved in vivo stability for treating diabetes and obesity显示文摘Peptide dual agonists toward both glucagon-like peptide 1 receptor(GLP-1R)and glucagon receptor(GCGR)are emerging as novel therapeutics for the treatment of type 2 diabetes mellitus(T2DM)patients with obesity.Our previous work identified a Xenopus GLP-1-based dual GLP-1R/GCGR agonist termed xGLP/GCG-13,which showed decent hypoglycemic and body weight lowering activity.However,the clinical utility of xGLP/GCG-13 is limited due to its short in vivo half-life.Inspired by the fact that O-GlcNAcylation of intracellular proteins leads to increased stability of secreted proteins,we rationally designed a panel of O-GlcNAcylated xGLP/GCG-13 analogs as potential long-acting GLP-1R/GCGR dual agonists.One of the synthesized glycopeptides 1f was found to be equipotent to xGLP/GCG-13 in cell-based receptor activation assays.As expected,O-GlcNAcylation effectively improved the stability of xGLP/GCG-13 in vivo.Importantly,chronic administration of 1f potently induced body weight loss and hypoglycemic effects,improved glucose tolerance,and normalized lipid metabolism and adiposity in both db/db and diet induced obesity(DIO)mice models.These results supported the hypothesis that glycosylation is a useful strategy for improving the in vivo stability of GLP-1-based peptides and promoted the development of dual GLP-1R/GCGR agonists as antidiabetic/antiobesity drugs.LI Qiang YANG Qimeng HAN Jing LIU Xiaohan FU Junjie YIN Jian 2022Chinese Journal of Natural Medicines2022,20,11:1
11Constructing oxygen-deficient V_(2)O_(3)@C nanospheres for high performance potassium ion batteries显示文摘Potassium ion batteries(PIBs) have been regarded as promising alternatives to lithium ion batteries(LIBs)on account of their abundant resource and low cost in large scale energy storage applications. However,it still remains great challenges to explore suitable electrode materials that can reversibly accommodate large size of potassium ions. Here, we construct oxygen-deficient V_(2)O_(3)nanoparticles encapsulated in amorphous carbon shell(Od-V_(2)O_(3)@C) as anode materials for PIBs by subtly combining the strategies of morphology and deficiency engineering. The MOF derived nanostructure along with uniform carbon coating layer can not only enables fast K+migration and charge transfer kinetics, but also accommodate volume change and maintain structural stability. Besides, the introduction of oxygen deficiency intrinsically tunes the electronic structure of materials according to DFT calculation, and thus lead to improved electrochemical performance. When utilized as anode for PIBs, Od-V_(2)O_(3)@C electrode exhibits superior rate capability(reversible capacities of 262.8, 227.8, 201.5, 179.8, 156.9 mAh/g at 100, 200, 500, 1000 and2000 mA/g, respectively), and ultralong cycle life(127.4 mAh/g after 1000 cycles at 2 A/g). This study demonstrates a feasible way to realize high performance PIBs through morphology and deficiency engineering.Qiang Deng Luolan Wang Jing Li Qian Cheng Xiaozhao Liu Changdong Chen Qimeng Zhang Wentao Zhong Hua Wang Lijue Wu Chenghao Yang 2023Chinese Chemical Letters2023,34,3:0
12A likely autotetraploidization event shaped the Chinese mahogany(Toona sinensis)genome显示文摘Chinese mahogany(Toona sinensis) is of considerable medical and economic importance, and its genome has been deciphered. However, the process underlying its polyploidy is unclear, and the chromosomal evolutionary trajectory is poorly understood. Here, by reanalysing the T.sinensis genome, we found evidence of a tetraploidization event(T. sinensis special tetraploidization, TST) that occurred approximately 15-17 million years ago(MYA) after the core eudicot-common hexaploidization(ECH or gamma) event. We characterized the synonymous nucleotide substitution rates(Ks values) of collinear genes and found that T. sinensis genes affected by the TST evolve at a slower rate than Acer yangbiense genes. Furthermore, we identified homologous genes related to polyploidization and speciation and constructed multiple alignments with different reference genomes. Notably, the significant balance of gene retention and loss characterized in the two TST-derived subgenomes suggests an autopolyploid nature of the TST. Moreover, we deduced the chromosomal karyotypes of the two subgenomes and identified 7chromosomal fusions that have shaped the T. sinensis genome;more information is available on a newly constructed karyotype platform(http://gffzze84c5b42976d4cd7hvoknuuxvoxxb6055.ffgz.tsg.suse.edu.cn/Toona_sinensis/index.html). The T. sinensis genome preserves the ancestral chromosome structure of dicotyledons well and could serve as a good reference for understanding genomic changes in other Meliaceae and Sapindales plants. In addition, we verified that tandem duplication and the ECH have promoted the expansion of terpene synthase(TPS) genes;conversely, the TST seems to have inhibited expansion of these genes. This present effort has clarified the polyploidy events of the T. sinensis genome, filled gaps in the history of karyotype evolution, and laid a solid foundation for further genomic studies in the Meliaceae research community and beyond.Jianyu Wang Ziyi Yang Tianyu Lei Yan Zhang Qimeng Xiao Zijian Yu Jiaqi Zhang Sangrong Sun Qiang Xu Shaoqi Shen Zimo Yan Mengnan Fang Yue Ding Zihan Liu Qianwen Zhu Ke Ren Yuxin Pan Haibin Liu Jinpeng Wang 2023Horticultural Plant Journal2023,9,2:0
13Nondestructive monitoring of annealing and chemical-mechanical planarization behavior using ellipsometry and deep learning显示文摘The Cu-flling process in through-silicon via(TSV-Cu)is a key technology for chip stacking and three-dimensional vertical packaging.During this process,defects resulting from chemical-mechanical planarization(CMP)and annealing severely affect the reliability of the chips.Traditional methods of defect characterization are destructive and cumbersome.In this study,a new defect inspection method was developed using Mueller matrix spectroscopic ellipsometry.TSV-Cu with a 3-μm-diameter and 8-μm-deep Cu filling showed three typical types of characteristics:overdishing(defect-OD),protrusion(defect-P),and defect-free.The process dimension for each defect was 13 nm.First,the three typical defects caused by CMP and annealing were investigated.With single-channel deep learning and a Mueller matrix element(MME),the TSV-Cu defect types could be distinguished with an accuracy rate of 99.94%.Next,seven effective MMEs were used as independent channels in the artificial neural network to quantify the height variation in the Cu flling in the z-direction.The accuracy rate was 98.92%after training,and the recognition accuracy reached 1 nm.The proposed approach rapidly and nondestructively evaluates the annealing bonding performance of CMP processes,which can improve the reliability of high-density integration.Qimeng Sun Dekun Yang Tianjian Liu Jianhong Liu Shizhao Wang Sizhou Hu Sheng Liu Yi Song 2023Microsystems & Nanoengineering2023,9,2:0
14Can the ASHRAE Standard 169 zoning method be applied to country-level energy-efficient building design in China?显示文摘In current building thermal climate design zones of China,the zoning indicators only include temperature elements without considering the regional difference of air humidity.Therefore,building thermal design strategies in continental climate zone with low relative humidity and marine climate zone with high relative humidity cannot be distinguished by the current building thermal zoning standards.ASHRAE Standard 169 proposes dual definitions for moisture and thermal climate zones,and this method can be extended to the world,including the so-called“China Climate Zones Map”.However,the moisture climate zoning criterion is unsuitable for China’s climate characteristics after climate analysis and building performance evaluation.In present work,a novel building moisture climate zoning method is proposed.The bioclimatic chart was utilized for extracting the outline of building climate through the Gaussian KDE method.Hence,the building moisture climate was classified,the zoning indicator was obtained,and a country-level climate zones map for China was established.The results indicated that the global information matrix served as a helpful guide and reference for planning at the national level.Annual precipitation could be used as a zoning indicator to accurately reflect the regional differences of building moisture climate in China.The approach can provide new thoughts for improving the climate zoning system in current energy-efficient building design standards of China to assist the ultra-low energy consumption target.Shangyu Wang Liu Yang Xiangxin Meng Kailin Lyu Qimeng Cao Yan Liu 2023Building Simulation2023,16,7:0
15Recent progress in synthesis and surface modification of nickel-rich layered oxide cathode materials for lithium-ion batteries显示文摘Nickel-rich layered oxides have been identified as the most promising commercial cathode materials for lithium-ion batteries(LIBs)for their high theoretical specific capacity.However,the poor cycling stability of nickel-rich cathode materials is one of the major barriers for the large-scale usage of LIBs.The existing obstructions that suppress the capacity degradation of nickel-rich cathode materials are as a result of phase transition,mechanical instability,intergranular cracks,side reaction,oxygen loss,and thermal instability during cycling.Core–shell structures,oxidating precursors,electrolyte additives,doping/coating and synthesizing single crystals have been identified as effective methods to improve cycling stability of nickel-rich cathode materials.Herein,recent progress of surface modification,e.g.coating and doping,in nickel-rich cathode materials are summarized based on Periodic table to provide a clear understanding.Electrochemical performances and mechanisms of modified structure are discussed in detail.It is hoped that an overview of synthesis and surface modification can be presented and a perspective of nickel-rich materials in LIBs can be given.Jing Li Wentao Zhong Qiang Deng Qimeng Zhang Chenghao Yang 2022International Journal of Extreme Manufacturing2022,4,4:0
16Allotetraploidization event of Coptis chinensis shared by all Ranunculales显示文摘Coptis chinensis Franch.,also named Chinese goldthread is a member of Ranunculaceae in the order Ranunculales and represents an important lineage of early eudicots with traditional medicinal value.In our study,by using syntenic analysis combined with phylogenomic analysis of C.chinensis and four other representative genomes from basal and core eudicots,we confirmed that the WGD event in C.chinensis was shared by Aquilegia coerulea and Papaver somniferum L.and quickly occurred after Ranunculales diverged from other eudicots,likely a Ranunculales common tetraploidization(RCT).The synonymous nucleotide substitutions at synonymous sites distribution of syntenic blocks across these genomes showed that the evolutionary rate of the P.somniferum genome is faster than that of the C.chinensis genome by approximately 13.7%,possibly due to Papaveraceaes having an additional special tetraploidization event(PST).After Ks correction,the RCT dated to 115—130 million years ago(MYA),which was close to the divergence of Ranunculaceaes and Papaveraceaes approximately115.45—130.51 MYA.Moreover,we identified homologous genes related to polyploidization and speciation and constructed multiple sequence alignments with different reference genomes.Notably,the event-related subgenomes in the basal genomes all showed genomic fractionation bias,suggesting a likely allopolyploid nature of the RCT,PST and T-Alpha and T-Beta events in Tetracentron sinense.In addition,we detected that the sixteen P450 subfamilies were markedly expanded in the genomes of Ranunculales,and most of them were related to the RCT and PST events.We constructed a new platform for Early Eudicot Comparative Genomic Research(http://gffzze84c5b42976d4cd7hvoknuuxvoxxb6055.ffgz.tsg.suse.edu.cn/index.html)to store more information.In summary,our findings support the WGD of C.chinensis shared by Ranunculales,which is likely an allotetraploidization event.This present effort offered new insights into the evolution of key polyploidization events and the genes related to secondary metabolites during the diversification of early eudicots.Yan Zhang Weina Ge Jia Teng Yanmei Yang Jianyu Wang Zijian Yu Jiaqi Wang Qimeng Xiao Junxin Zhao Shaoqi Shen Yishan Feng Shoutong Bao Yu Li Yuxian Li Tianyu Lei Yuxin Pan Lan Zhang Jinpeng Wang 2024Horticultural Plant Journal2024,10,1:0
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