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111篇 您的检索式:作者名="Jiawei Zhu"
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1Whole-genome sequencing of 508 patients identifies key molecular features associated with poor prognosis in esophageal squamous cell carcinoma显示文摘Esophageal squamous cell carcinoma(ESCC)is a poor-prognosis cancer type with limited understanding of its molecular etiology.Using 508 ESCC genomes,we identified five novel significantly mutated genes and uncovered mutational signature clusters associated with metastasis and patients’outcomes.Several functional assays implicated that NFE2L2 may act as a tumor suppressor in ESCC and that mutations in NFE2L2 probably impaired its tumor-suppressive function,or even conferred oncogenic activities.Additionally,we found that the NFE2L2 mutations were significantly associated with worse prognosis of ESCC.We also identified potential noncoding driver mutations including hotspot mutations in the promoter region of SLC35E2 that were correlated with worse survival.Approximately 5.9%and 15.2%of patients had high tumor mutation burden or actionable mutations,respectively,and may benefit from immunotherapy or targeted therapies.We found clinically relevant coding and noncoding genomic alterations and revealed three major subtypes that robustly predicted patients’outcomes.Collectively,we report the largest dataset of genomic profiling of ESCC useful for developing ESCC-specific biomarkers for diagnosis and treatment.Yongping Cui Hongyan Chen Ruibin Xi Heyang Cui Yahui Zhao Enwei Xu Ting Yan Xiaomei Lu Furong Huang Pengzhou Kong Yang Li Xiaolin Zhu Jiawei Wang Wenjie Zhu Jie Wang Yanchun Ma Yong Zhou Shiping Guo Ling Zhang Yiqian Liu Bin Wang Yanfeng Xi Ruifang Sun Xiao Yu Yuanfang Zhai Fang Wang Jian Yang Bin Yang Caixia Cheng Jing Liu Bin Song Hongyi Li Yi Wang Yingchun Zhang Xiaolong Cheng Qimin Zhan Yanhong Li Zhihua Liu-Show 2020Cell Research2020,30,10:19
2COVID-19: Challenges to GIS with Big Data显示文摘The outbreak of the 2019 novel coronavirus disease(COVID-19)has caused more than 100,000 people infected and thousands of deaths.Currently,the number of infections and deaths is still increasing rapidly.COVID-19 seriously threatens human health,production,life,social functioning and international relations.In the fight against COVID-19,Geographic Information Systems(GIS)and big data technologies have played an important role in many aspects,including the rapid aggregation of multi-source big data,rapid visualization of epidemic information,spatial tracking of confirmed cases,prediction of regional transmission,spatial segmentation of the epidemic risk and prevention level,balancing and management of the supply and demand of material resources,and socialemotional guidance and panic elimination,which provided solid spatial information support for decision-making,measures formulation,and effectiveness assessment of COVID-19 prevention and control.GIS has developed and matured relatively quickly and has a complete technological route for data preparation,platform construction,model construction,and map production.However,for the struggle against the widespread epidemic,the main challenge is finding strategies to adjust traditional technical methods and improve speed and accuracy of information provision for social management.At the data level,in the era of big data,data no longer come mainly from the government but are gathered from more diverse enterprises.As a result,the use of GIS faces difficulties in data acquisition and the integration of heterogeneous data,which requires governments,businesses,and academic institutions to jointly promote the formulation of relevant policies.At the technical level,spatial analysis methods for big data are in the ascendancy.Currently and for a long time in the future,the development of GIS should be strengthened to form a data-driven system for rapid knowledge acquisition,which signifies ts that GIS should be used to reinforce the social operation parameterization of models and methods,especially when providing support for social management.Chenghu Zhou Fenzhen Su Tao Pei An Zhang Yunyan Du Bin Luo Zhidong Cao Juanle Wang Wen Yuan Yunqiang Zhu Ci Song Jie Chen Jun Xu Fujia Li Ting Ma Lili Jiang Fengqin Yan Jiawei Yi Yunfeng Hu Yilan Liao Han Xiao 2020Geography and Sustainability2020,1,1:13
3Alfalfa-containing diets alter luminal microbiota structure and short chain fatty acid sensing in the caecal mucosa of pigs显示文摘Background: Pork produced by outdoor-reared pigs raised mostly on alfalfa pastures attracts increasing population of consumer from most of the world. In China, pigs were raised with alfalfa-containing diets to seek for good quality pork.However, the influence of dietary alfalfa involving high level of insoluble dietary fiber(IDF) on pig intestinal luminal microbiota composition remains unclear. The objective of this study was to investigate the effects of alfalfa on luminal microbiota and short chain fatty acids(SCFA) production, and gene expressions involved in SCFA sensing, transporting and absorbing in pig caecal mucosa.Results: Twenty-four growing pigs were randomly allotted to four diets containing 0%, 5%, 10% and 15% alfalfa meal for a 28-d experiment. Ingestion of alfalfa meal-contained diets significantly increased the ratio of body weight gain to feed consumption. Illumina MiS eq sequencing of the V3 region of the 16 S r RNA genes showed that alfalfa-containing diet significantly decreased the relative abundance of genera Turicibacter, Acidiphilium, Paracoccus, Propionibacterium,Corynebacterium, Pseudomonas, Acinetobacter, and Staphylococcus, and increased the relative abundance of genera Lachnospira, Marvinbryantia, and Desulfovibrio in the caecal digesta. Butyrate concentration was significantly increased in the hindgut by the supplementation of alfalfa meal in diets. The m RNA gene expressions of FFAR3, SMCT1, MCT1,PYY, and GCG were significantly increased in the caecal mucosa of pigs fed alfalfa meal.Conclusions: Our results suggested that alfalfa-containing diet has exerted significant impacts on caecal microbiota composition, butyrate concentration and significantly upregulated m RNA expression of host caecal mucosal genes involved in SCFA sensing and absorption as well as regulation of satiety.Jiawei Wang Chunfu Qin Ting He Kai Qiu Wenjuan Sun Xin Zhang Ning Jiao Weiyun Zhu Jingdong Yin 2018Journal of Animal Science and Biotechnology2018,9,2:12
4Insight-HXMT observations of the first binary neutron star merger GW170817显示文摘Finding the electromagnetic(EM) counterpart of binary compact star merger, especially the binary neutron star(BNS) merger,is critically important for gravitational wave(GW) astronomy, cosmology and fundamental physics. On Aug. 17, 2017,Advanced LIGO and Fermi/GBM independently triggered the first BNS merger, GW170817, and its high energy EM counterpart,GRB 170817 A, respectively, resulting in a global observation campaign covering gamma-ray, X-ray, UV, optical, IR, radio as well as neutrinos. The High Energy X-ray telescope(HE) onboard Insight-HXMT(Hard X-ray Modulation Telescope) is the unique high-energy gamma-ray telescope that monitored the entire GW localization area and especially the optical counterpart(SSS17 a/AT2017 gfo) with very large collection area(~1000 cm^2) and microsecond time resolution in 0.2-5 MeV. In addition,Insight-HXMT quickly implemented a Target of Opportunity(ToO) observation to scan the GW localization area for potential X-ray emission from the GW source. Although Insight-HXMT did not detect any significant high energy(0.2-5 MeV) radiation from GW170817, its observation helped to confirm the unexpected weak and soft nature of GRB 170817 A. Meanwhile,Insight-HXMT/HE provides one of the most stringent constraints(~10^(-7) to 10^(-6) erg/cm^2/s) for both GRB170817 A and any other possible precursor or extended emissions in 0.2-5 MeV, which help us to better understand the properties of EM radiation from this BNS merger. Therefore the observation of Insight-HXMT constitutes an important chapter in the full context of multi-wavelength and multi-messenger observation of this historical GW event.TiPei Li ShaoLin Xiong ShuangNan Zhang FangJun Lu LiMing Song XueLei Cao Zhi Chang Gang Chen Li Chen TianXiang Chen Yong Chen YiBao Chen YuPeng Chen Wei Cui WeiWei Cui JingKang Deng YongWei Dong YuanYuan Du MinXue Fu GuanHua Gao He Gao Min Gao MingYu Ge YuDong Gu Ju Guan ChengCheng Guo DaWei Han Wei Hu Yue Huang Jia Huo ShuMei Jia LuHua Jiang WeiChun Jiang Jing Jin YongJie Jin Bing Li ChengKui Li Gang Li MaoShun Li Wei Li Xian Li XiaoBo Li XuFang Li YanGuo Li ZiJian Li ZhengWei Li XiaoHua Liang JinYuan Liao CongZhan Liu GuoQing Liu HongWei Liu ShaoZhen Liu XiaoJing Liu Yuan Liu YiNong Liu Bo Lu XueFeng Lu Tao Luo Xiang Ma Bin Meng Yi Nang JianYin Nie Ge OU JinLu Qu Na Sai Liang Sun Yin Tan Lian Tao WenHui Tao YouLi Tuo GuoFeng Wang HuanYu Wang Juan Wang WenShuai Wang YuSa Wang XiangYang Wen BoBing WU Mei Wu GuangCheng Xiao He Xu YuPeng Xu LinLi Yan JiaWei Yang Sheng Yang YanJi Yang AiMei Zhang ChunLei Zhang ChengMo Zhang Fan Zhang HongMei Zhang Juan Zhang Qiang Zhang Shu Zhang Tong Zhang Wei Zhang WanChang Zhang WenZhao Zhang Yi Zhang Yue Zhang YiFei Zhang YongJie Zhang Zhao Zhang ZiLiang Zhang HaiSheng Zhao JianLing Zhao XiaoFan Zhao ShiJie Zheng Yue Zhu YuXuan Zhu ChangLin Zou 2018Science China(Physics,Mechanics & Astronomy)2018,61,3:12
5Effect of coating modification of cordierite carrier on catalytic performance of supported NiMnO_3 catalysts for VOCs combustion显示文摘NiMnO_3 perovskite catalysts supported on cordierite modified by Ce_xZr_(1-x)O_2 coatings were prepared using impregnation and sol-gel methods for catalytic combustion of single/double component VOCs at different concentrations and GHSV of 15,000 h^(-1), which were characterized by BET, XRD, SEM, FT-IR, H_2-TPR and O_2-TPD. After coating modification, the specific surface area of catalysts is improved obviously.Among the catalysts, the Ce_(0.75)Zr_(0.25)O_2 coating modified NiMnO_3 catalyst exhibits the best catalytic activity for VOCs combustion with 95.6% conversion at 275 ℃ and has stable activity when catalyst is embalmed at 800 ℃. In addition, the catalyst also presents the excellent water-resistant and conversion stability over time-on-stream condition. The reason is that Ce_(0.75)Zr_(0.25)O_2 coating can promote more lattice distortion and defects and smaller crystal size, which improve oxygen transfer capability and dispersion of active component.Lei Deng Chao Huang Jiawei Kan Bing Li Yingwen Chen Shemin Zhu Shubao Shen 2018Journal of Rare Earths2018,36,3:10
6High precision and efficiency robotic milling of complex parts:Challenges,approaches and trends显示文摘Due to the advantages of large workspace,low cost and the integrated vision/force sensing,robotic milling has become an important way for machining of complex parts.In recent years,many scholars have studied the problems existing in the applications of robotic milling,and lots of results have been made in the dynamics,pose planning,deformation control etc.,which provides theoretical guidance for high precision and high efficiency of robotic milling.From the perspective of complex parts robotic milling,this paper focuses on machining process planning and control techniques including the analysis of the robot-workspace,robot trajectory planning,vibration monitoring and control,deformation monitoring and compensation.As well as the principles of these technologies such as robot stiffness characteristics,dynamic characteristics,chatter mechanisms,and deformation mechanisms.The methods and characteristics related to the theory and technology of robotic milling of complex parts are summarized systematically.The latest research progress and achievements in the relevant fields are reviewed.It is hoped that the challenges,strategies and development related to robotic milling could be clarified through the carding work in this paper,so as to promote the application of related theories and technologies in high efficiency and precision intelligent milling with robot for complex parts.Zerun ZHU Xiaowei TANG Chen CHEN Fangyu PENG Rong YAN Lin ZHOU Zepeng LI Jiawei WU 2022Chinese Journal of Aeronautics2022,35,2:9
7Defect and Doping Co‑Engineered Non‑Metal Nanocarbon ORR Electrocatalyst显示文摘Exploring low-cost and earth-abundant oxygen reduction reaction(ORR)electrocatalyst is essential for fuel cells and metal–air batteries.Among them,non-metal nanocarbon with multiple advantages of low cost,abundance,high conductivity,good durability,and competitive activity has attracted intense interest in recent years.The enhanced ORR activities of the nanocarbons are normally thought to originate from heteroatom(e.g.,N,B,P,or S)doping or various induced defects.However,in practice,carbon-based materials usually contain both dopants and defects.In this regard,in terms of the co-engineering of heteroatom doping and defect inducing,we present an overview of recent advances in developing non-metal carbon-based electrocatalysts for the ORR.The characteristics,ORR performance,and the related mechanism of these functionalized nanocarbons by heteroatom doping,defect inducing,and in particular their synergistic promotion effect are emphatically analyzed and discussed.Finally,the current issues and perspectives in developing carbon-based electrocatalysts from both of heteroatom doping and defect engineering are proposed.This review will be beneficial for the rational design and manufacturing of highly efficient carbon-based materials for electrocatalysis.Jian Zhang Jingjing Zhang Feng He Yijun Chen Jiawei Zhu Deli Wang Shichun Mu Hui Ying Yang 2021Nano-Micro Letters2021,13,4:8
8The geometric factor of high energy protons detector on FY-3 satellite显示文摘Geometric factor is the key parameter for inversion of particle spectrum in space particle detection. Traditional geometric factor is obtained through the method of numerical calculation with the actual structure of the detector as the input condition. The degree of accuracy for data inversion is reduced since traditional geometric factor fails to take into account the physical process of interaction between the particle and substance as well as the influence of factors such as the particle interference between different energy channels on the measurement result. Here we propose an improved geometrical factor calculation method, the concept of which is to conduct actual structural modelling of the detector in the GEANT4 program, consider the process of interaction between the particle and substance, obtain the response function of the detector to particles of different energy channels through the method of Monte Carlo simulation, calculate the influence of contaminated particle on the geometrical factor, and finally get the geometrical factors for different energy channels of the detector. The imrpoved geometrical factor obtained through the method has carried out inversion for the data of high energy protons detector on China's FY-3 satellite, the energy spectrum after which is more in line with the power law distribution recognized by space physics. The comparison with the measured result of POES satellite indicates that the FY-3 satellite data are in good accordance with the satellite data, which shows the method may effectively improve the quality of data inversion.ZHANG ShenYi ZHANG XianGuo WANG ChuiQin SHEN GuoHong JIN Tao ZHANG BinQuan SUN YueQiang ZHU GuangWu LIANG JinBao ZHANG XiaoXin LI JiaWei HUANG Cong HAN Ying 2014Science China Earth Sciences2014,57,10:6
9Meso–Cenozoic Tectono-Thermal Evolution History in Bohai Bay Basin, North China显示文摘The thermal history of sedimentary basins is a key factor for hydrocarbon accumulation and resource assessment, and is critical in the exploration of lithospheric tectono-thermal evolution. In this paper, the Cenozoic thermal histories of nearly 200 wells and the Mesozoic thermal histories of 15 wells are modeled based on the vitrinite reflectance and apatite fission track data in Bohai Bay Basin, North China. The results show that the basin experienced Early Cretaceous and Paleogene heat flow peaks, which reveals two strong rift tectonic movements that occurred in the Cretaceous and the Paleogene in the basin, respectively. The thermal evolution history in Bohai Bay Basin can be divided into five stages including(1) the low and stable heat flow stage from the Triassic to the Jurassic, with the heat flow of 53 to 58 m W/m2;(2) the first heat flow peak from the Early Cretaceous to the middle of the Late Cretaceous, with a maximum heat flow of 81 to 87 m W/m2;(3) the first post-rift thermal subsidence stage from the middle of the Late Cretaceous to the Paleocene, with the heat flow of 65 to 74 m W/m2 at the end of the Cretaceous;(4) the second heat flow peak from the Eocene to the Oligocene, with a maximum heat flow of 81 to 88 m W/m2; and(5) the second thermal subsidence stage from the Neogene to present, with an average heat flow of 64 m W/m2.Yinhui Zuo Nansheng Qiu Jiawei Li Qingqing Hao Xiongqi Pang Zhongying Zhao Qi Zhu 2015Journal of Earth Science2015,26,3:6
10Tianwen-1 MINPA observations in the solar wind显示文摘The Mars Ion and Neutral Particle Analyzer(MINPA)is one of the three scientific instruments onboard the Tianwen-1 orbiter to investigate the Martian space environment.During Tianwen-1’s transfer orbit to Mars,the MINPA was switched on to measure the solar wind ions.Here,we present the first results of the MINPA observations in the solar wind.During cruise,nearly half of the MINPA ion field-of-view(FOV)was blocked by the lander capsule;thus only the solar-wind ions with azimuthal speeds pointing towards the unblocked FOV sectors could be detected.We perform a detailed comparison of the MINPA’s solar wind observations with data from Earth-based missions when MINPA reached its count-rate peak,finding a general consistency of the ion moments between them.The blocking effect due to the lander is evaluated quantitatively under varying solar-wind velocity conditions.Despite the blocking effect,the MINPA’s solar wind measurements during the transfer orbit suggest a good performance.AiBing Zhang LingGao Kong WenYa Li Lei Li BinBin Tang ZhaoJin Rong Yong Wei JiJie Ma YiTeng Zhang LiangHai Xie YuXian Wang JianSen He Bin Liu WenJing Wang Bin Su JiaWei Li Xu Tan Fang Wang TaiFeng Jin FuHao Qiao Peter Wurz Yan Zhu YunFei Bai YiRen Li XinBo Zhu YueQiang Sun YongLiao Zou Chi Wang 2022Earth and Planetary Physics2022,6,1:5
11Characterization of Distinct T Cell Receptor Repertoires in Tumor and Distant Non-tumor Tissues from Lung Cancer Patients显示文摘T cells and T cell receptors(TCRs)play pivotal roles in adaptive immune responses against tumors.The development of next-generation sequencing technologies has enabled the analysis of the TCRb repertoire usage.Given the scarce investigations on the TCR repertoire in lung cancer tissues,in this study,we analyzed TCRb repertoires in lung cancer tissues and the matched distant non-tumor lung tissues(normal lung tissues)from 15 lung cancer patients.Based on our results,the general distribution of T cell clones was similar between cancer tissues and normal lung tissues;however,the proportion of highly expanded clones was significantly higher in normal lung tissues than in cancer tissues(0.021%±0.002%vs.0.016%±0.001%,P=0.0054,Wilcoxon signed rank test).In addition,a significantly higher TCR diversity was observed in cancer tissues than in normal lung tissues(431.37±305.96 vs.166.20±101.58,P=0.0075,Mann-Whitney U test).Moreover,younger patients had a significantly higher TCR diversity than older patients(640.7±295.3 vs.291.8±233.6,P=0.036,Mann-Whitney U test),and the higher TCR diversity in tumors was significantly associated with worse cancer outcomes.Thus,we provided a comprehensive comparison of the TCR repertoires between cancer tissues and matched normal lung tissues and demonstrated the presence of distinct T cell immune microenvironments in lung cancer patients.Xiang Wang Botao Zhang Yikun Yang Jiawei Zhu Shujun Cheng Yousheng Mao Lin Feng Ting Xiao 2019Genomics, Proteomics & Bioinformatics2019,17,3:5
12Boundedness of Hausdorff operators on Lebesgue spaces and Hardy spaces显示文摘In this paper, we study the boundedness of the Hausdorff operator H_? on the real line R. First, we start with an easy case by establishing the boundedness of the Hausdorff operator on the Lebesgue space L^p(R)and the Hardy space H^1(R). The key idea is to reformulate H_? as a Calder′on-Zygmund convolution operator,from which its boundedness is proved by verifying the Hrmander condition of the convolution kernel. Secondly,to prove the boundedness on the Hardy space H^p(R) with 0 < p < 1, we rewrite the Hausdorff operator as a singular integral operator with the non-convolution kernel. This novel reformulation, in combination with the Taibleson-Weiss molecular characterization of H^p(R) spaces, enables us to obtain the desired results. Those results significantly extend the known boundedness of the Hausdorff operator on H^1(R).Jiecheng Chen Jiawei Dai Dashan Fan Xiangrong Zhu 2018Science China Mathematics2018,61,9:5
13Maternal Eomesodermin regulates zygotic nodal gene expression for mesendoderm induction in zebrafish embryos显示文摘在在 midblastula 转变(MBT ) 的 zygotic 染色体激活前的动物胚胎的开发是实质上 supportedby 导出鸡蛋的母亲的产品。节的蛋白质在 MBT 以后是为中层和内胚叶正式就职的关键信号。Itremains 不清楚母亲的因素它在 zebrafish 胞胚的 ventrolateral blastodermal 边缘激活节的基因的 zygotic 表示。在这研究,我们显示出母亲的 Eomesodermina (Eomesa ) 的那损失,一个 T 盒子抄写因素,损害节的基因 ndr1 和 ndr2 以及 mesodermal 和 endodermal 标记的 zygotic 表示,在 mesendoderm 显示参与感应。母亲的 Eomesa 是为抄写因素基因 mxtx2 的及时 zygotic 表示的 alsorequired,节的基因表示的一个管理者。Eomesa 直接在激活他们的抄写的 ndr1, ndr2,和 mxtx2 的倡导者或 enhancer 绑在 Eomes 有约束力的地点。而且,节的基因也是的人和老鼠由 Eomes 调整了。进鼠科的胚胎的干细胞的 zebrafish eomesa 的 Transfection 与内长的节的表示的经常的高水平支持 mesendodermal 区别,建议 Eomes 的一个保存函数。一起拿,我们的调查结果在在脊椎动物胚胎调整节的基因表示和 mesendoderm 正式就职揭示母亲的 T-boxtranscription 因素的一个保存角色。Pengfei Xu Gaoyang Zhu Yixia Wang Jiawei Sun Xingfeng Liu Ye-Guang Chen Anming Meng 2014Journal of Molecular Cell Biology2014,8,4:5
14Advanced Fiber Materials for Wearable Electronics显示文摘Fiber materials are highly desirable for wearable electronics that are expected to be flexible and stretchable.Compared with rigid and planar electronic devices,fiber-based wearable electronics provide significant advantages in terms of flexibility,stretchability and breathability,and they are considered as the pioneers in the new generation of soft wearables.The con-vergence of textile science,electronic engineering and nanotechnology has made it feasible to build electronic functions on fibers and maintain them during wear.Over the last few years,fiber-shaped wearable electronics with desired designability and integration features have been intensively explored and developed.As an indispensable part and cornerstone of flexible wearable devices,fibers are of great significance.Herein,the research progress of advanced fiber materials is reviewed,which mainly includes various material preparations,fabrication technologies and representative studies on different wearable applications.Finally,key challenges and future directions of fiber materials and wearable electronics are examined along with an analysis of possible solutions.Chuang Zhu Jiawei Wu Jianhua Yan Xuqing Liu 2023Advanced Fiber Materials2023,5,1:5
15Selenium deficiency induces spleen pathological changes in pigs by decreasing selenoprotein expression,evoking oxidative stress,and activating inflammation and apoptosis显示文摘Background:The immune system is one aspect of health that is affected by dietary selenium(Se)levels and selenoprotein expression.Spleen is an important immune organ of the body,which is directly involved in cellular immunity.However,there are limited reports on Se levels and spleen health.Therefore,this study established a Se-deficient pig model to investigate the mechanism of Se deficiency-induced splenic pathogenesis.Methods:Twenty-four pure line castrated male Yorkshire pigs(45 days old,12.50±1.32 kg,12 full-sibling pairs)were divided into two equal groups and fed Se-deficient diet(0.007 mg Se/kg)or Se-adequate diet(0.3 mg Se/kg)for 16 weeks.At the end of the trial,blood and spleen were collected to assay for erythroid parameters,the osmotic fragility of erythrocytes,the spleen index,histology,terminal deoxynucleotidyl transferase nick-end labeling(TUNEL)staining,Se concentrations,the selenogenome,redox status,and signaling related inflammation and apoptosis.Results:Dietary Se deficiency decreased the erythroid parameters and increased the number of osmotically fragile erythrocytes(P<0.05).The spleen index did not change,but hematoxylin and eosin and TUNEL staining indicated that the white pulp decreased,the red pulp increased,and splenocyte apoptosis occurred in the Se deficient group.Se deficiency decreased the Se concentration and selenoprotein expression in the spleen(P<0.05),blocked the glutathione and thioredoxin antioxidant systems,and led to redox imbalance.Se deficiency activated the NF-κB and HIF-1αtranscription factors,thus increasing pro-inflammatory cytokines(IL-1β,IL-6,IL-8,IL-17,and TNF-α),decreasing anti-inflammatory cytokines(IL-10,IL-13,and TGF-β)and increasing expression of the downstream genes COX-2 and iNOS(P<0.05),which in turn induced inflammation.In addition,Se-deficiency induced apoptosis through the mitochondrial pathway,upregulated apoptotic genes(Caspase3,Caspase8,and Bak),and downregulated antiapoptotic genes(Bcl-2)(P<0.05)at the mRNA level,thus verifying the results of TUNEL staining.Conclusions:These results indicated that Se deficiency induces spleen injury through the regulation of selenoproteins,oxidative stress,inflammation and apoptosis.Shuang Li Wenjuan Sun Kai Zhang Jiawei Zhu Xueting Jia Xiaoqing Guo Qingyu Zhao Chaohua Tang Jingdong Yin Junmin Zhang 2021Journal of Animal Science and Biotechnology2021,12,4:4
16Neuritin promotes angiogenesis through inhibition of DLL4/Notch signaling pathway显示文摘Neuritin is a member of the neurotrophic factor family,which plays an important role in the promotion and development of the nervous system.Neuritin is also involved in angiogenesis.Neuritin was recently found to be a negative regulatory factor of the Notch 1 signaling pathway.Notch signaling pathway is known as a regulatory pathway of angiogenesis.Thus,neuritin may play a role in angiogenesis through the Notch signaling pathway.In the present study,we investigated the expressions of neuritin and Notch signaling pathway factors in the pulmonary vascular tissue.The results showed that neuritin expression was increased in the paraneoplastic vascular tissue and decreased in the lung cancer vascular tissue.The neuritin expression was increased with the increase of vascular tissue density,and a negative correlation between neuritin expression and delta-like ligand 4(DLL4)was identified in vascular tissues of lung cancer.Overexpression of neuritin in human umbilical vein endothelial cells(HUVECs)inhibited the expressions of Notch signaling pathway-associated factors,including DLL4,NICD,and Hes-1,and promoted the migration and tubular formation of HUVECs.In conclusion,our results indicated that neuritin is involved in angiogenesis and may play a role in angiogenesis through the Notch signaling pathway.This study provides a theoretical basis for clinical anti-angiogenesis therapy.Li Yang Xuhui Wang Jiawei Sun Chunyan Liu Guoxiang Li Jingling Zhu Jin Huang 2021Acta Biochimica et Biophysica Sinica2021,53,6:4
17Cross-calibration of high energetic particles data——A case study between FY-3B and NOAA-17显示文摘Cross-calibration of high energetic particle data is a primary requirement for the availability of multi-instrument,multi-spacecraft data.It also can provide a method to verify relative reliability of data from single satellite measurement.This paper presents a case study of energetic particles data cross-calibration between FY-3B and NOAA-17.A generally good agreement is acquired in the flux values and distribution trend of 2.5–6.9 MeV protons and 0.3–1.1 MeV electrons between FY-3B and NOAA-17 satellites.It suggests that the data observed by FY-3B is properly cross-calibrated.We can also confirm that energetic particles data observed by FY-3B satellite is available.WANG ChunQin ZHANG XianGuo LI JiaWei HUANG Cong ZHANG XiaoXin JING Tao SHEN GuoHong ZHANG ShenYi CAO GuangWei SUN YueQiang LIANG JinBao ZHU GuangWu HAN Ying 2013Science China(Technological Sciences)2013,56,11:4
18Chromosome-scale genome assembly of sweet cherry(Prunus avium L.)cv.Tieton obtained using long-read and Hi-C sequencing显示文摘Sweet cherry(Prunus avium)is an economically significant fruit species in the genus Prunus.However,in contrast to other important fruit trees in this genus,only one draft genome assembly is available for sweet cherry,which was assembled using only Illumina short-read sequences.The incompleteness and low quality of the current sweet cherry draft genome limit its use in genetic and genomic studies.A high-quality chromosome-scale sweet cherry reference genome assembly is therefore needed.A total of 65.05 Gb of Oxford Nanopore long reads and 46.24 Gb of Illumina short reads were generated,representing~190x and 136x coverage,respectively,of the sweet cherry genome.The final de novo assembly resulted in a phased haplotype assembly of 344.29 Mb with a contig N50 of 3.25 Mb.Hi-C scaffolding of the genome resulted in eight pseudochromosomes containing 99.59%of the bases in the assembled genome.Genome annotation revealed that more than half of the genome(59.40%)was composed of repetitive sequences,and 40,338 protein-coding genes were predicted,75.40%of which were functionally annotated.With the chromosomescale assembly,we revealed that gene duplication events contributed to the expansion of gene families for salicylic acid/jasmonic acid carboxyl methyltransferase and ankyrin repeat-containing proteins in the genome of sweet cherry.Four auxin-responsive genes(two GH3s and two SAURs)were induced in the late stage of fruit development,indicating that auxin is crucial for the sweet cherry ripening process.In addition,772 resistance genes were identified and functionally predicted in the sweet cherry genome.The high-quality genome assembly of sweet cherry obtained in this study will provide valuable genomic resources for sweet cherry improvement and molecular breeding.Jiawei Wang Weizhen Liu Dongzi Zhu Po Hong Shizhong Zhang Shijun Xiao Yue Tan Xin Chen Li Xu Xiaojuan Zong Lisi Zhang Hairong Wei Xiaohui Yuan Qingzhong Liu 2020Horticulture Research2020,7,1:4
19Nurturing the marriages of single atoms with atomic clusters and nanoparticles for better heterogeneous electrocatalysis显示文摘Single-atom catalysts,featuring some of the most unique activities,selectivity,and high metal utilization,have been extensively studied over the past decade.Given their high activity,selectivity,especially towards small molecules or key intermediate conversions,they can be synergized together with other active species(typically other single atoms,atomic clusters,or nanoparticles)in either tandem or parallel or both,leading to much better performance in complex catalytic processes.Although there have been reports on effectively combining the multiple components into one single catalytic entity,the combination and synergy between single atoms and other active species have not been reviewed and examined in a systematic manner.Herein,in this overview,the key synergistic interactions,binary complementary effects,and the bifunctional functions of single atoms with other active species are defined and discussed in detail.The integration functions of their marriages are in-vestigated with particular emphasis on the homogeneous and heterogeneous combinations,spatial distribution,synthetic strategies,and the thus-derived outstanding catalytic performance,together with new light shined on the catalytic mechanisms by zooming in several case studies.The dynamic nature of each of the active species and in particular their interactions in such new catalytic entities in the heterogeneous electrocatalytic processes are visited,on the basis of the in situ/operando evidence.Last,we feature the current chal-lenges and future perspectives of these integrated catalytic entities that can offer guidance for advanced catalyst design by the rational combination and synergy of binary or multiple active species.Lei Zhang Jiawei Zhu Xin Li Shichun Mu Francis Verpoort Junmin Xue Zongkui Kou John Wang 2022Interdisciplinary Materials2022,1,1:3
20Alternate binding modes of anti-CRISPR viral suppressors AcrF1/2 to Csy surveillance complex revealed by cryo-EM structures显示文摘抗菌素编码 anti-CRISPR suppressors 抵抗他们的细菌的主人的 CRISPR/Cas 免疫,因此便于他们的幸存和复制。以前的研究显示出那二编码噬菌体的 anti-CRISPR 蛋白质, AcrF1 和 AcrF2,如果由由 Csy 监视建筑群阻止目标 DNA 识别的 Pseudomonas aeruginosa 的 CRISPR/Cas 系统,而是精确位于下面机制是未知的,压制类型。这里我们在场 Csy 建筑群一定的 AcrF1/2 的结构由 cryo 他们决定了单个粒子的重建。由结构的分析,我们发现 AcrF1 由防碍在 DNA 目标海滨和 crRNA 分隔符之间的基础配对禁止 Csy 建筑群的目标 DNA 识别。另外,当个别地工作或与 AcrF2 合作时, AcrF1 的多重拷贝与不同模式绑在 Csy 建筑群,它可能排除通过不同机制有约束力的目标 DNA。和以前的报告,我们为二 anti-CRISPR suppressors, AcrF1 和 AcrF2 提供一种全面工作情形,它由指向 Csy 监视建筑群的沉默 CRISPR/Cas 免疫。Ruchao Peng Ying Xu Tengfei Zhu Ningning Li Jianxun Qi Yan Chai Min Wu Xinzheng Zhang Yi Shi Peiyi Wang Jiawei Wang Ning Gao George Fu Gao 2017Cell Research2017,27,7:3
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