|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Indole alkaloid sulfonic acids from an aqueous extract of Isatis indigotica roots and their antiviral activity显示文摘Six new indole alkaloid sulfonic acids(1–6), together with two analogues(7 and 8) that were previously reported as synthetic products, were isolated from an aqueous extract of the Isatis indigotica root. Their structures including the absolute configurations were determined by spectroscopic data analysis, combined with enzyme hydrolysis and comparison of experimental circular dichroism and calculated electronic circular dichroism spectra. In the preliminary assay, compounds 2 and 4 showed antiviral activity against Coxsackie virus B3 and influenza virus A/Hanfang/359/95(H3N2), respectively. | Lingjie Meng Qinglan Guo Yufeng Liu Minghua Chen Yuhuan Li Jiandong Jiang Jiangong Shi | 2017 | Acta Pharmaceutica Sinica B2017，7，3： | 14 |
| 2 | 8,4′-Oxyneolignane glucosides from an aqueous extract of“ban lan gen”(Isatis indigotica root)and their absolute configurations显示文摘Three pairs of glycosidic 8,4′-oxyneolignane diastereoisomers, named isatioxyneolignosides A-F(1–6), were isolated from an aqueous extract of Isatis indigotica roots. Their structures and absolute configurations were elucidated by comprehensive spectroscopic data analysis and enzyme hydrolysis. The validity of Δδ_(C8-C7) values to distinguish threo and erythro aryl glycerol units and Cotton effects at 235±5 nm to determine absolute configurations at C-8 in 1–6 and their aglycones(1a–6a) are discussed. | Lingjie Meng Qinglan Guo Yufeng Liu Jiangong Shi | 2017 | Acta Pharmaceutica Sinica B2017，7，6： | 13 |
| 3 | Source apportionment and ecological risk assessment of PAHs in surface sediments from the Liaodong Bay,northern China显示文摘The sources and ecological risk from sixteen polycyclic aromatic hydrocarbons in surface sediment in the Liaodong Bay were investigated from 2014 to 2015.The total concentrations of PAHs ranged from 88.5 to 347.1 ng/g,and the high value occurred in the central region of the Liaodong Bay.Cluster analysis identified two site clusters representing the coastal region affected by land-based pollution and the central region of the Liaodong Bay.Principal component analysis-multiple linear regression and diagnostic ratios suggested that PAHs contaminants originated from a mixture of combustion and petroleum sources,and the major was combustion sources.Based on sediment quality guideline,naphthalene,acenaphthylene,acenaphthene,phenanthrene and dibenz[a,h]anthracene may occasionally cause adverse biological effects in some stations.The toxic equivalent concentrations of carcinogenic PAHs indicated low carcinogenic risk for the Liaodong Bay.The ecological risk and toxic pollution levels of PAHs were higher in the central region than in the coastal region along the Liaodong Bay. | ZHANG Yufeng WU Jinhao SONG Lun SONG Yonggang YANG Meng WANG Nianbin HAN Jiabo GUAN Daoming | 2018 | Acta Oceanologica Sinica2018，37，4： | 6 |
| 4 | Identifying changes in the wheat kernel proteome under heat stress using iTRAQ显示文摘Wheat(Triticum aestivum L.) is one of the three major global food crops. Hightemperature stress can affect its yield and quality. Studies of the effect of hightemperature stress on wheat kernel development are important because they can reveal the stability of wheat quality and lead to the genetic improvement of wheat quality traits. In this study, the isobaric tags for relative and absolute quantitation(iTRAQ)method was adopted to analyze changes in the protein expression profile of wheat cultivars under high temperature stress. The protein content of wheat grain increased under heat stress, while the SDS-sedimentation value and starch content decreased.Grain filling was deficient under high temperature stress, which reduced thousandkernel weight but did not affect wheat kernel length. The 207 differentially expressed proteins identified in Gaocheng 8901 under heat stress were associated with energy metabolism, growth and development, and stress response. Gene Ontology enrichment analysis showed that the annotated proteins that were differentially expressed in Gaocheng 8901 under heat stress were involved mainly in stimulus response, abiotic stress response, stress response, and plasma membrane. A set of 78 differentially expressed proteins were assigned to 83 KEGG signaling/metabolic pathways. KEGG pathway enrichment analysis showed that this set of proteins was significantly enriched in members of 51 pathways, and the proteins participated mainly in protein synthesis in the endoplasmic reticulum, starch and sucrose metabolism, and reaction on ribosomes. Five differentially expressed proteins were involved in protein–protein interaction networks that may greatly influence the yield and quality of wheat grain. In wheat, high-temperature stress leads to a variety of effects on protein expression and may ultimately cause changes in yield and quality. | Yufeng Zhang Hongyao Lou Dandan Guo Ruiqi Zhang Meng Su Zhenghong Hou Haiying Zhou Rongqi Liang Chaojie Xie Mingshan You Baoyun Li | 2018 | The Crop Journal2018，6，6： | 5 |
| 5 | Development of high mechanical properties and moderate thermal conductivity cast Mg alloy with multiple RE via heat treatment显示文摘A new cast Mg–2 Gd–2 Nd–2 Y–1 Ho–1 Er–0.5 Zn–0.4 Zr(wt%) alloy was prepared by direct-chill semicontinuous casting technology. The microstructure, mechanical properties and thermal conductivity of the alloy in as-cast, solid-solution treated and especially peak-aged conditions were investigated. The as-cast alloy mainly consists of β-Mg matrix,(Mg, Zn)_3 RE phase and basal plane stacking faults. After proper solid-solution treatment, the microstructure becomes almost Mg-based single phase solid solution except just very few RE-riched particles. The as-cast and solid-solution treated alloys exhibit moderate tensile properties and thermal conductivity. It is noteworthy that the Mg alloy with 8 wt% multiple RE exhibits remarkable age-hardening response( HV = 35.7), which demonstrates that the multiple RE(RE = Gd, Nd, Y, Ho, Er) alloying instead of single Gd can effectively improve the age-hardening response.The peak-aged alloy has a relatively good combination of high strength/hardness(UTS(ultimate tensile strength) > 300 MPa; TYS(tensile yield strength) > 210 MPa; 115.3 HV), proper ductility(ε≈ 6%) and moderate thermal conductivity(52.5 W/(m K)). The relative mechanisms mainly involving aging precipitation of β￠ and β'' phases were discussed. The results provide a basis for development of high performance cast Mg alloys. | Guoqiang Li Jinghuai Zhang Ruizhi WU Yan Feng Shujuan Liu Xiaojun Wang Yufeng Jiao Qiang Yang Jian Meng | 2018 | Journal of Materials Science & Technology2018，34，7： | 4 |
| 6 | Inactive Al^(3+)-doped La(CoCrFeMnNiAl_(x))_(1/(5+x))O_(3)high-entropy perovskite oxides as high performance supercapacitor electrodes显示文摘A series of high-entropy perovskite oxides(HEPOs)La(CoCrFeMnNiAl_(x))_(1/(5+x))O_(3-δ)(x=0.4,0.5,0.6,and 0.7)have been synthesized by coprecipitation method combined with calcination process and explored as electrodes for supercapacitors.The crystal structure,microstructure,and elemental composition of HEPOs were investigated by X-ray diffraction(XRD),scanning electron microscopy(SEM),transmission electron microscopy(TEM),and energy-dispersive X-ray spectroscopy(EDS)in detail.The electrochemical properties of HEPOs as supercapacitor electrodes were elucidated.The specific capacitances of HEPOs(x=0.4,0.5,0.6,and 0.7)are 281.84,353.65,325.60,and 259.30 F/g at the current density of 1 A/g,respectively.After 2000 cycles,the specific capacitances of HEPOs(x=0.4,0.5,0.6,and 0.7)remain 85.01%,88.61%,86.37%,and 91.25%,respectively.Such outstanding electrochemical properties can be attributed to the entropy-stabilized structure caused by mixed six cations in B-site and the Al^(3+)-doping suppressing active ion aggregation during charge-discharge process.This research highlights the potential of HEPOs as electrodes for supercapacitors. | Meng GUO Yufeng LIU Fengnian ZHANG Fuhao CHENG Chufei CHENG Yang MIAO Feng GAO Jun YU | 2022 | Journal of Advanced Ceramics2022，11，5： | 2 |
| 7 | Preparation and electrical conductivity of(Zr,Hf,Pr,Y,La)O high entropy fluorite oxides显示文摘A series of compositionally complex fluorite oxides(CCFOs)were prepared by ball milling the mixture of ZrO_(2),HfO_(2),Y_(2)O_(3),La_(2)O_(3),and Pr_(6)O_(11)followed by conventional solid-state sintering.Both XRD and TG-DSC results demonstrated that single-phase(Zr_(0.2)Hf_(0.2)Pr_(0.2)Y_(0.2)La_(0.2))O_(2-)δwas formed at 1400°C.Elements in bulk ceramic were uniformly distributed without evident accumulation according to SEM-EDS pictures.TEM results revealed that polycrystalline ceramic powder was assignable to cubic Fm-3m fluorite structure.The electrical conductivity(σ)was measured via EIS technology and activation energy(E_(a))of CCFOs was calculated in Arrhenius plots.In the temperature range of 300-750°C,CCFOs preserved the same conduction mechanism and(Zr_(0.1667)Hf_(0.1667)Pr_(0.1667)Y_(0.25)La_(0.25))O_(2-)δpossessed higherσand lower E_(a) than other high entropy fluorite oxides which is related to the incorporation of Pr element or the connection of cation-V_(o) complex. | Fengnian Zhang Fuhao Cheng Chufei Cheng Meng Guo Yufeng Liu Yang Miao Feng Gao Xiaomin Wang | 2022 | Journal of Materials Science & Technology2022，，10： | 2 |
| 8 | Transcriptome dynamics of hippocampal neurogenesis in macaques across the lifespan and aged humans显示文摘Whether adult hippocampal neurogenesis(AHN)persists in adult and aged humans continues to be extensively debated.A major question is whether the markers identified in rodents are reliable enough to reveal new neurons and the neurogenic trajectory in primates.Here,to provide a better understanding of AHN in primates and to reveal more novel markers for distinct cell types,droplet-based single-nucleus RNA sequencing(snRNA-seq)is used to investigate the cellular heterogeneity and molecular characteristics of the hippocampi in macaques across the lifespan and in aged humans.All of the major cell types in the hippocampus and their expression profiles were identified.The dynamics of the neurogenic lineage was revealed and the diversity of astrocytes and microglia was delineated.In the neurogenic lineage,the regulatory continuum from adult neural stem cells(NSCs)to immature and mature granule cells was investigated.A group of primate-specific markers were identified.We validated ETNPPL as a primate-specific NSC marker and verified STMN1 and STMN2 as immature neuron markers in primates.Furthermore,we illustrate a cluster of active astrocytes and microglia exhibiting proinflammatory responses in aged samples.The interaction analysis and the comparative investigation on published datasets and ours imply that astrocytes provide signals inducing the proliferation,quiescence and inflammation of adult NSCs at different stages and that the proinflammatory status of astrocytes probably contributes to the decrease and variability of AHN in adults and elderly individuals. | Wei Wang Mengdi Wang Meng Yang Bo Zeng Wenying Qiu Qiang Ma Xiaoxi Jing Qianqian Zhang Bosong Wang Chonghai Yin Jiyao Zhang Yuxin Ge Yufeng Lu Weizhi Ji Qian Wu Chao Ma Xiaoqun Wang | 2022 | Cell Research2022，32，8： | 2 |
| 9 | Study of ventilation cooling technology for telecommunication base stations in Guangzhou显示文摘 | Yi Chen Yufeng Zhang Qinglin Meng | 2009 | Energy and Buildings2009，41，7： | 1 |
| 10 | High storage per- formance of core-shell Si@C nanoparticles as lithium ion battery anode material显示文摘 | Zhao Guangyu Zhang Li Meng Yufeng | 2013 | Materials Letters2013，95，： | 1 |
| 11 | Comfort under personally controlled air movement in warm and humid environments显示文摘 | Yongchao Zhai Hui Zhang Yufeng Zhang Wilmer Pasut Edward Arens Qinglin Meng | 2013 | Building and Environment2013，，： | 1 |
| 12 | Key immunity characteristics of diverse stages of brucellosis in rural population from Inner Mongolia, China显示文摘Background: Brucellosis poses a serious threat to human and animal health,particularly in developing countries such as China.The Inner Mongolia Autonomous Region is one of the most severely brucellosis-endemic provinces in China.Currently,the host immune responses functioning to control Brucella infection and development remain poorly understood.The aim of this study is to further clarify the key immunity characteristics of diverse stages of brucellosis in Inner Mongolia.Methods: We collected a total of 733 blood samples from acute(n=137),chronic(n=316),inapparent(n=35),recovery(n=99),and healthy(n=146)groups from the rural community of Inner Mongolia between 2014 and 2015.The proportions of CD4^(+),CD8^(+),Th1,Th2,and Th17 T cells in peripheral blood and the expression of TLR2 and TLR4 in lymphocytes,monocytes and granulocytes were examined using flow cytometry analysis.The differences among the five groups were compared using one-way ANOVA and the Kruskal–Wallis method,respectively.Results: Our results revealed that the proportions of CD4^(+) and CD8^(+) T cells were significantly different among the acute,chronic,recovery,and healthy control groups(P<0.05),with lower proportions of CD4^(+) T cells and a higher proportion of CD8^(+) T cells in the acute,chronic,and recovery groups.The proportion of Th1 cells in the acute,chronic,and inapparent groups was higher than that in the healthy and recovery groups;however,there was no significant difference between patients and healthy individuals(P>0.05).The proportion of Th2 lymphocytes was significantly higher in the acute and healthy groups than in the inapparent group(P<0.05).The proportion of Th17 cells in the acute group was significantly higher than that in the healthy control,chronic,and inapparent groups(P<0.05).Finally,the highest expression of TLR4 in lymphocytes,monocytes and granulocytes was observed in the recovery group,and this was followed by the acute,chronic,healthy control,and inapparent groups.There was a significant difference between the recovery group and the other groups,except for the acute group(P<0.05).Moreover,a correlation in TLR4 expression was observed in lymphocytes,monocytes and granulocytes among the five groups(r>0.5),except for the inapparent group between lymphocytes and granulocytes(r=0.34).Conclusions: Two key factors(CD8^(+)T cells and TLR4)in human immune profiles may closely correlate with the progression of brucellosis.The detailed function of TLR4 in the context of a greater number of cell types or tissues in human or animal brucellosis and in larger samples should be further explored in the future. | Yongzhang Zhu Li Shi Yige Zeng Dongri Piao Yingbo Xie Juan Du Meng Gao Wei Gao Junli Tian Jun Yue Min Li XiaoKui Guo Yufeng Yao YaoXia Kang | 2022 | Infectious Diseases of Poverty2022，11，3： | 1 |
| 13 | Reaction performance of isobutane alkylation catalyzed by a composite ionic liquid at a short contact time显示文摘 | Zhichang Liu Xianghai Meng Rui Zhang Chunming Xu Heng Dong Yufeng Hu | 2014 | AIChE J2014，，6： | 1 |
| 14 | Metal oxide nanostructures and their gas sensing properties: A review 显示文摘 | Sun Yufeng Liu Shaobo Meng Fanli | 2012 | Sensors2012，12，3： | 1 |
| 15 | Electro- deposited Si Film with Excellent Stability and High Rate Performance for Lithium-ion Battery Anodes显示文摘 | Zhao Guangyu Meng Yufeng Zhang Naiqing | 2012 | Materials Letters2012，76，： | 1 |
| 16 | Stndy of Influencing Factors of Dynamic Measurenaents Based on SnO2 Gas Sensor显示文摘 | Yufeng Stm Xingjiu Hnang Fanli Meng Jinhuai Liu | 2004 | Seusors2004，4，： | 1 |
| 17 | Theoretical and experimental analysis of the energy balance of extensive green roofs显示文摘 | Chi Feng Qinglin Meng Yufeng Zhang | 2010 | Energy and Buildings2010，42，6： | 1 |
| 18 | Thermal comfort in buildings with split air-conditioners in hot-humid area of China 显示文摘 | ZHANG Yufeng CHEN Huimei MENG Qinglin | 2013 | Building and Environment2013，64，： | 1 |
| 19 | Interlaced nanoflake-assembled flower-like hierarchical ZnO microspheres prepared by bisolvents and their sensing properties to ethanol显示文摘 | Fanli Meng Sheng Ge Yong Jia Bai Sun Yufeng Sun Chen Wang Hao Wu Zhen Jin Minqiang Li | 2015 | Journal of Alloys and Compounds2015，，： | 1 |
| 20 | Flower-like hierarchical structures consisting of porous single-crystalline ZnO nanosheets and their gas sensing properties to volatile organic compounds (VOCs)显示文摘 | Fanli Meng Nannan Hou Sheng Ge Bai Sun Zhen Jin Wei Shen Lingtao Kong Zheng Guo Yufeng Sun Hao Wu Chen Wang Minqiang Li | 2014 | Journal of Alloys and Compounds2014，，： | 1 |
您所在的机构暂未开通此部分的功能，请联系管理员