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109篇 您的检索式:作者名="Siyuan Yang"
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1Sodium oligomannate therapeutically remodels gut microbiota and suppresses gut bacterial amino acids-shaped neuroinflammation to inhibit Alzheimer's disease progression显示文摘Recently,increasing evidence has suggested the association between gut dysbiosis and Alzheimer's disease(AD)progression,yet the role of gut microbiota in AD pathogenesis remains obscure.Herein,we provide a potential mechanistic link between gut microbiota dysbiosis and neuroinflammation in AD progression.Using AD mouse models,we discovered that,during AD progression,the alteration of gut microbiota composition leads to the peripheral accumulation of phenylalanine and isoleucine,which stimulates the differentiation and proliferation of pro-inflammatory T helper 1(Thl)cells.The brain-infiltrated peripheral Th1 immune cells are associated with the Ml microglia aaivation,contributing to AD-associated neuroinflammation.Importantly,the elevation of phenylalanine and isoleucine concentrations and the increase of Th1 cell frequency in the blood were also observed in two small independent cohorts of patients with mild cognitive impairment(MCI)due to AD.Furthermore,GV-971,a sodium oligomannate that has demonstrated solid and consistent cognition improvement in a phase 3 clinical trial in China,suppresses gut dysbiosis and the associated phenylalanine/isoleucine accumulation,harnesses neuroinflammation and reverses the cognition impairment.Together,our findings highlight the role of gut dysbiosis-promoted neuroinflammation in AD progression and suggest a novel strategy for AD therapy by remodelling the gut microbiota.Xinyi Wang Guangqiang Sun Teng Feng Jing Zhang Xun Huang Tao Wang Zuoquan Xie Xingkun Chu Jun Yang Huan Wang Shuaishuai Chang Yanxue Gong Lingfei Ruan Guanqun Zhang Siyuan Yan Wen Lian Chen Du Dabing Yang Qingli Zhang Feifei Lin Jia Liu Haiyan Zhang Changrong Ge Shifu Xiao Jian Ding Meiyu Geng 2019Cell Research2019,29,10:192
2A Chromosome-Level Genome Assembly of Garlic (Allium sativum) Provides Insights into Genome Evolution and Allicin Biosynthesis显示文摘Garlic,an economically important vegetable,spice,and medicinal crop,produces highly enlarged bulbs and unique organosulfur compounds.Here,we report a chromosome-level genome assembly for garlic,with a total size of approximately 16.24 Gb,as well as the annotation of 57561 predicted protein-coding genes,making garlic the first Allium species with a sequenced genome.Analysis of this garlic genome assembly reveals a recent burst of transposable elements,explaining the substantial expansion of the garlic genome.We examined the evolution of certain genes associated with the biosynthesis of allicin and inulin neoseries-type fructans,and provided new insights into the biosynthesis of these two compounds.Furthermore,a large-scale transcriptome was produced to characterize the expression patterns of garlic genes in different tissues and at various growth stages of enlarged bulbs.The reference genome and large-scale transcriptome data generated in this study provide valuable new resources for research on garlic biology and breeding.Xiudong Sun Siyuan Zhu Ningyang Li Yi Cheng Jing Zhao Xuguang Qiao Li Lu Shiqi Liu Yanzhou Wang Chan Liu Benping Li Wu Guo Shuang Gao Zemao Yang Fu Li Zheng Zeng Qing Tang Yupeng Pan Mengjiao Guan Jian Zhao Xiaomi ng Lu Huanwe n Meng Zhenlin Han Chun she ng Gao Wenkai Jiang Xing Zhao Shilin Tian Jianguang Su Zhihui Cheng Touming Liu 2020Molecular Plant2020,13,9:14
3Additive manufacturing of high-strength CrMnFeCoNi high-entropy alloys-based composites with WC addition显示文摘Laser melting deposition with WC addition has been developed to fabricate high-strength CrMnFeCoNibased high-entropy alloys-based composites.By this technique,a microstructure of compact refined equiaxed grains can be achieved,and the tensile strength can be remarkably improved.The sample with 5 wt%WC addition shows a promising mechanical performance with a tensile strength of 800 MPa and an elongation of 37%.The improvement in mechanical property may be attributed to the formation of Cr(23)C6 reinforcement precipitates,which could promote the heterogeneous nucleation of grains and hinder the propagation of slip bands.Jinfeng Li Shuo Xiang Hengwei Luan Abdukadir Amar Xue Liu Siyuan Lu Yangyang Zeng Guomin Le Xiaoying Wang Fengsheng Qu Chunli Jiang Guannan Yang 2019Journal of Materials Science & Technology2019,35,11:13
4Theoretical and experimental investigation on a liquid-gas ejector power cycle using ammonia-water显示文摘The purpose of this paper is to investigate a novel power cycle using low-temperature heat sources such as oceanic-thermal, biomass as well as industrial waste heat. Both a reheater and a liquid-gas ejector are used in this ammonia-water based cycle. Energy analysis and parametric analysis are performed to guide the theoretical performance and experimental investigation is done to verify the theoretical results. The results show that the generator pressure, heating source temperature and turbine outlet depressurization made by the ejector can affect the cycle performances. Besides, the experimental thermal efficiency is much lower than the theoretical one on account of the heat losses and irreversibility. Moreover, the performance of liquid-gas ejector is affected by primary flow pressure and temperature.YUAN Han MEI Ning LI Yan YANG Shuai HU SiYuan HAN YiFang 2013Science China(Technological Sciences)2013,56,9:10
5Nature:研究鉴定出蛋白Nlrp9b抵抗轮状病毒感染机制显示文摘轮状病毒(rotavirus)是婴儿和儿童罹患肠胃炎和腹泻的一种最为常见的原因,每年导致全世界大约21.5万人死亡。它是高度传染性的和潜在致命性的。这种病毒特异性地感染宿主小肠中的肠上皮细胞,并且已进化出抵抗干扰素和NF-KB信号的策略来躲避免疫系统,这就提出一个问题:其他的宿主因子是否参与肠道粘膜中的抗病毒反应。不过,针对体内(特别是通过NLR炎性体)检测和限制肠道病毒的机制,人们知之甚少。Shu Zhu, Zheng Wei, Noah W. Palm, Yi Yang, Hua Yu, Hua-Bing Li, Geng Wang, Xuqiu Lei, Marcel R. de Zoete, Jun Zhao, Yunjiang Zheng, Haiwei Chen, Liang Shan, Richard A. Flavell Siyuan Ding, Ningguo Feng, Harry B. Greenberg Siyuan Ding, Harry B. Greenberg Penghua Wang, Yujiao Zhao Wen Pan, Jun Lu Jun Zhao, Yuval Kluger Kellie A. Jurado, Clara Abraham, Erol Fikrig Erol Fikrig, Richard A. Flavell 2017现代生物医学进展2017,17,27:10
6Epigenetic regulation of macrophages: from homeostasis maintenance to host defense显示文摘Macrophages are crucial members of the innate immune response and important regulators.The differentiation and activation of macrophages require the timely regulation of gene expression,which depends on the interaction of a variety of factors,including transcription factors and epigenetic modifications.Epigenetic changes also give macrophages the ability to switch rapidly between cellular programs,indicating the ability of epigenetic mechanisms to affect phenotype plasticity.In this review,we focus on key epigenetic events associated with macrophage fate,highlighting events related to the maintenance of tissue homeostasis,responses to different stimuli and the formation of innate immune memory.Further understanding of the epigenetic regulation of macrophages will be helpful for maintaining tissue integrity,preventing chronic inflammatory diseases and developing therapies to enhance host defense.Siyuan Chen Jing Yang Yuquan Wei Xiawei Wei 2020Cellular & Molecular Immunology2020,17,1:8
7Cell-free plasma hypermethylated CASZ1, CDH13 and ING2 are promising biomarkers of esophageal cancer显示文摘Identifying sensitive and specific biomarkers for early detection of cancer is immensely imperative for early diagnosis and treatment and better clinical outcome of cancer patients. This study aimed to construct a specific DNA methylation pattern of cancer suppressor genes and explore the feasibility of applying cell-free DNA based methylation as a biomarker for early diagnosis of esophageal squamous cell carcinoma(ESCC). We recruited early stage ESCC patients from Yangzhong County, China. The Illumina Infinium 450 K Methylation BeadChip was used to construct a genome-wide DNA methylation profile. Then, differentiated genes were selected for the validation study using the Sequenom MassARRAY platform. The frequency of methylation was compared between cancer tissues, matched cell-free DNAs and normal controls. The specific methylation profiles were constructed, and the sensitivity and specificity were calculated. Seven CG sites in three genes CASZ1, CDH13 and ING2 were significantly hypermethylated in ESCC as compared with normal controls. A significant correlation was found between the methylation of DNA extracted from cancer tissues and matched plasma cell-free DNA, either for individual CG site or for cumulative methylation analysis. The sensitivity and specificity reached 100% at an appropriate cut-point using these specific methylation biomarkers. This study revealed that aberrant DNA methylation is a promising biomarker for molecular diagnosis of esophageal cancer. Hypermethylation of CASZ1,CDH13 and ING2 detected in plasma cell-free DNA can be applied as a potential noninvasive biomarker for diagnosis of esophageal cancer.Huanqiang Wang Congying Yang Siyuan Wang Tian Wang Jingling Han Kai Wei Fucun Liu Jida Xu Xianzhen Peng Jianming Wang 2018The Journal of Biomedical Research2018,32,6:6
8The shortest period of coal spontaneous combustion on the basis of oxidative heat release intensity显示文摘It’s necessary to forecast the shortest spontaneous combustion period for preventing and controlling the coal spontaneous combustion.During the experimental process,a calculating model of the SSCP is established on the basis of the oxidative heat release intensity and thermal capacity at different temperatures.According to the basic parameters of spontaneous combustion,heat of water evaporation and gas desorption,the SSCPs of different coals are further predicted.Finally,this study analyzed the relationships of the SSCP and the judging indexes of the self-ignite tendency.The result shows that the SSCP non-linearly increases with the decrease of dynamic oxygen adsorption and increase of activation energy.Compared with the practical fire situation of mine,this reliable method can meet the actual requirement of mine production.Yang Yongliang Li Zenghua Hou Shisong Gu Fanjun Gao Siyuan Tang Yibo 2014International Journal of Mining Science and Technology2014,24,1:5
9Fabrication of Open-cell Al Foam Core Sandwich by Vibration Aided Liquid Phase Bonding Method and Its Mechanical Properties显示文摘The open-cell Al foam core sandwiches(AFCSs) were successfully fabricated by using a specially designed Zn-Al-Cu based filler alloy via vibration aided liquid phase bonding method.The effects of the vibration on the bonding seam were investigated and the bonding strength between Al foam core and solid Al alloy face sheet was tested by shearing tests.The results show that vibration can significantly improve the quality of the bonding and the shearing strength of the bonding seam,which implies that this joining method has a good potential in practical applications.Hui Wang Donghui Yang Siyuan He Deping He 2010Journal of Materials Science & Technology2010,26,5:5
10Cancer metabolism and tumor microenvironment:fostering each other?显示文摘The changes associated with malignancy are not only in cancer cells but also in environment in which cancer cells live.Metabolic reprogramming supports tumor cells’high demand of biogenesis for their rapid proliferation,and helps tumor cells to survive under certain genetic or environmental stresses.Emerging evidence suggests that metabolic alteration is ultimately and tightly associated with genetic changes,in particular the dysregulation of key oncogenic and tumor suppressive signaling pathways.Cancer cells activate HIF signaling even in the presence of oxygen and in the absence of growth factor stimulation.This cancer metabolic phenotype,described firstly by German physiologist Otto Warburg,ensures enhanced glycolytic metabolism for the biosynthesis of macromolecules.The conception of metabolite signaling,i.e.,metabolites are regulators of cell signaling,provides novel insights into how reactive oxygen species(ROS)and other metabolites deregulation may regulate redox homeostasis,epigenetics,and proliferation of cancer cells.Moreover,the unveiling of noncanonical functions of metabolic enzymes,such as the moonlighting functions of phosphoglycerate kinase 1(PGK1),reassures the importance of metabolism in cancer development.The metabolic,microRNAs,and ncRNAs alterations in cancer cells can be sorted and delivered either to intercellular matrix or to cancer adjacent cells to shape cancer microenvironment via media such as exosome.Among them,cancer microenvironmental cells are immune cells which exert profound effects on cancer cells.Understanding of all these processes is a prerequisite for the development of a more effective strategy to contain cancers.Yiyuan Yuan Huimin Li Wang Pu Leilei Chen Dong Guo Hongfei Jiang Bo He Siyuan Qin Kui Wang Na Li Jingwei Feng Jing Wen Shipeng Cheng Yaguang Zhang Weiwei Yang Dan Ye Zhimin Lu Canhua Huang Jun Mei Hua-Feng Zhang Ping Gao Peng Jiang Shicheng Su Bing Sun Shi-Min Zhao 2022Science China(Life Sciences)2022,65,2:5
11Multiscale modeling of mechanical behavior and failure mechanism of 3D angle-interlock woven aluminum composites subjected to warp/weft directional tension loading显示文摘The mechanical behavior and progressive damage mechanism of novel aluminum matrix composites reinforced with 3D angle-interlock woven carbon fibers were investigated using a multiscale modeling approach.The mechanical properties and failure of yarns were evaluated using a microscale model under different loading scenarios.On this basis,a mesoscale model was developed to analyze the tensile behavior and failure mechanism of the composites.The interfacial decohesion,matrix damage,and failure of fibers and yarns were incorporated into the microscopic and mesoscopic models.The stress–strain curves and fracture modes from simulation show good agreement with the experimental curves and fracture morphology.Local interface and matrix damage initiate first under warp directional tension.Thereafter,interfacial failure,weft yarn cracking,and matrix failure occur successively.Axial fracture of warp yarn,which displays a quasi-ductile fracture characteristic,dominates the ultimate composites failure.Under weft directional tension,interfacial failure and warp yarn rupture occur at the early and middle stages.Matrix failure and weft yarn fracture emerge simultaneously at the final stage,leading to the cata-strophic failure of composites.The weft directional strength and fracture strain are lower than the warp directional ones because of the lower weft density and the more serious brittle fracture of weft yarns.Zhenjun WANG Siyuan YANG Shiping SUN Yingfeng ZHANG Changchun CAI Bowen XIONG Wei YANG Zhifeng XU Huan YU 2021Chinese Journal of Aeronautics2021,34,8:4
12Safety and efficacy of Yupingfeng granules in children with recurrent respiratory tract infection:A randomized clinical trial显示文摘Importance:Recurrent respiratory tract infection(RRTI)is common in children.Inappropriate RRTI treatment will lead to asthma and other diseases,thereby seriously affecting the growth and physical health of children.Immune function modulation can prevent and alleviate childhood RRTI.Yupingfeng(YPF),a patented traditional Chinese medicine(TCM),has immunomodulatory effects and is widely used in China to treat children with RRTI.Objective:To evaluate the safety and efficacy of YPF monotherapy in treating children with RRTI.Methods:This multicenter,randomized,double-blind,double-simulation,noninferiority clinical trial was conducted from January 2015 to August 2017,with an 8-week treatment period and 52-week follow-up after the drug withdrawal.Children aged 2–6 years with RRTI meeting the inclusion and exclusion criteria were enrolled in 13 hospitals in China and divided randomly into three groups(2:2:1 ratio)to receive YPF,pidotimod,or placebo.The primary outcome was the proportion of RRTI returning to normal standard level during the follow-up.The secondary outcomes were reduction in the number of RRTI recurrences,effect on clinical symptoms(in accord with TCM practice),effect per symptom,and safety.The trial was registered at the Chinese Clinical Trials Registry(www.chictr.org.cn)under the unique identifier ChiCTR-IPR-15006847.Results:Three hundred and fifty-one children were enrolled and randomly assigned to 3 groups;124,125,and 61 children in the YPF,pidotimod,and placebo groups,respectively,had completed the trial.During the follow-up,the proportion of RRTI returning to normal standard level was 73.13%,67.15%,and 38.81%with YPF,pidotimod,and placebo,respectively(P<0.0001).The proportion of cases who returned to normal standard level in the YPF group was 34.32%higher than that in the placebo group.The safety profile did not significantly differ among the groups.Interpretation:YPF granules were noninferior to the active control drug pidotimod oral solution for the treatment of RRTI in children,and were superior to placebo,with a high safety profile.Baoping Xu Xinmin Li Siyuan Hu Yixiao Bao Fengmei Chen Zhimin Chen Yonggang Du Enmei Liu Yufeng Liu Qinghui Mou Baoling Su Bo Wang Jianwen Xu Guiping Xu Qiaozhi Yang Liwei Gao Xiaohui Liu Lei Li Rong Ma Kunling Shen 2022Pediatric Investigation2022,6,2:3
13Effect of Zhu-yuan decoction in patients with chronic rhinosinusitis after functional endoscopic sinus surgery显示文摘OBJECTIVE: To investigate the effectiveness and safety of Zhu-yuan decoction(ZYD) in patients after functional endoscopic sinus surgery(FESS).METHODS: A total of 85 patients were randomized into two groups: 44 were treated with intranasal corticosteroids(INC), and 41 were given Chinese herbal medicine(CHM). Patients with chronic rhinosinusitis(CRS) who underwent FESS were prospectively enrolled in the study. Before surgery, they were evaluated by visual analog scale(VAS), nasal endoscopy, computed tomography(CT), and routine blood test. After surgery, they were randomized to take ZYD or INC for 12 weeks and revaluated by VAS; nasal endoscopy at 4, 8, and 12 weeks;and CT at 12 weeks after surgery.RESULTS: In the both groups, VAS and endoscopyscores decreased significantly at 4, 8, and 12 weeks,and CT scores after treatment declined at 12 weeks compared with baseline scores. No significant differences were observed with regard to postoperative VAS, endoscopy, or CT scores between groups.ZYD, combined with surgery, can reduce VAS, nasal endoscopy, and CT scores and has the same efficacy and safety profile as INC in post-FESS management.No fatalities or major adverse events occurred in either group.CONCLUSION: Our findings suggest that ZYD has similar effects and safety profiles in patients after FESS compared with INC.Li Jing Zheng Chunquan Lin Hai Yang Chen Gu Siyuan Wang Yi Duan Honggang 2018Journal of Traditional Chinese Medicine2018,38,1:3
14FeCo alloy@N-doped graphitized carbon as an efficient cocatalyst for enhanced photocatalytic H2 evolution by inducing accelerated charge transfer显示文摘Cocatalysts play important roles in improving the activity and stability of most photocatalysts.It is of great significance to develop economical,efficient and stable cocatalysts.Herein,using Na2CoFe(CN)6 complex as precursor,a novel noble-metal-free FeCo@NGC cocatalyst(nano-FeCo alloy@N-doped graphitized carbon) is fabricated by a simple pyrolysis method.Coupling with g-C3 N4, the optimal FeCo@NGC/g-C3N4 receives a boosted visible light driven photocatalytic H2 evolution rate of 42.2 μmol h-1, which is even higher than that of 1.0 wt% Pt modified g-C3N4 photocatalyst.Based on the results of density functional theory(DFT) calculations and practical experiment measurements,such outstanding photocatalytic performance of FeCo@NGC/g-C3N4 is mainly attributed to two aspects.One is the accelerated charge transfer behavior,induced by a photogene rated electrons secondary transfer performance on the surface of FeCo alloy nanoparticles.The other is related to the adjustment of H adsorption energy(approaching the standard hydrogen electrode potential) by the presence of external NGC thin layer.Both factors play key roles in the H2 evolution reaction.Such outstanding performance highlights an enormous potential of developing noble-metal-free bimetallic nano-alloy as inexpensive and efficient cocatalysts for solar applications.Sibo Chen Yun Hau Ng Jihai Liao Qiongzhi Gao Siyuan Yang Feng Peng Xinhua Zhong Yueping Fang Shengsen Zhang 2021Journal of Energy Chemistry2021,30,1:3
15High-performance distributed feedback quantum dot lasers with laterally coupled dielectric gratings显示文摘The combination of grating-based frequency-selective optical feedback mechanisms,such as distributed feedback(DFB)or distributed Bragg reflector(DBR)structures,with quantum dot(QD)gain materials is a main approach towards ultrahigh-performance semiconductor lasers for many key novel applications,as either stand-alone sources or on-chip sources in photonic integrated circuits.However,the fabrication of conventional buried Bragg grating structures on GaAs,GaAs/Si,GaSb,and other material platforms has been met with major material regrowth difficulties.We report a novel and universal approach of introducing laterally coupled dielectric Bragg gratings to semiconductor lasers that allows highly controllable,reliable,and strong coupling between the grating and the optical mode.We implement such a grating structure in a low-loss amorphous silicon material alongside GaAs lasers with InAs/GaAs QD gain layers.The resulting DFB laser arrays emit at pre-designed 0.8 THz local area network wavelength division multiplexing frequency intervals in the 1300 nm band with record performance parameters,including sidemode suppression ratios as high as 52.7 dB,continuous-wave output power of 26.6 mW(room temperature)and 6 mW(at 55℃),and ultralow relative intensity noise(RIN)of<-165 dB/Hz(2.5-20 GHz).The devices are also capable of isolator-free operating under very high external reflection levels of up to-12.3 dB while maintaining high spectral purity and ultralow RIN qualities.These results validate the novel laterally coupled dielectric grating as a technologically superior and potentially cost-effective approach for fabricating DFB and DBR lasers free of their semiconductor material constraints,which are thus universally applicable across different material platforms and wavelength bands.ZHUOHUI YANG ZHENGQING DING LIN LIU HANCHENG ZHONG SHENG CAO XINZHONG ZHANG SHIZHE LIN XIAOYING HUANG HUADI DENG YING YU SIYUAN YU 2022Photonics Research2022,10,5:3
16Exploration of amino trimethylene phosphonic acid to eliminate the adverse effect of seawater in molybdenite flotation显示文摘In this investigation,a chelating agent of amino trimethylene phosphonic acid(ATMP) was introduced to eliminate the adverse effect of seawater in molybdenite flotation.Microflotation results presented that high flotation recovery of molybdenite was achieved in freshwater using kerosene as the collector,but it was significantly decreased in the presence of seawater when pH> 9.5.Among the main ions in seawater,magnesium and calcium ions played a more detrimental role than others.After the addition of ATMP,molybdenite floatability can restore in seawater.Zeta potential distribution and solution chemistry calculation results illustrated that the decreased molybdenite floatability was attributed to the interaction of positive Mg(OH)_(2)(s)(major) and CaOH^(+)(minor) components with the molybdenite surface.The magnesium/calcium ions of positive components of Mg(OH)_(2)(s) and CaOH^(+) interacted with the ionized species of ATMP and then produced ATMP-calcium/magnesium complex,leading to the electrostatic repulsion between molybdenite and ATMP-calcium/magnesium complex that was restoring the molybdenite flotation.Hence,the ATMP can be utilized as an appropriate reagent to improve molybdenite flotation in seawater.Guanghua Ai Kaihua Huang Cheng Liu Siyuan Yang 2021International Journal of Mining Science and Technology2021,31,6:2
17Studies of benzyl hydroxamic acid/calcium lignosulphonate addition order in the flotation separation of smithsonite from calcite显示文摘Flotation separation of smithsonite from calcite is difficult due to their similar surface properties.In the present study,a reagent scheme of depressant calcium lignosulphonate(CLS) and collector benzyl hydroxamic acid(BHA) was introduced in the flotation of smithsonite from calcite.Microflotation tests revealed that the efficient flotation of smithsonite from calcite could only be obtained with the addition order of BHA before CLS,which was opposite to the widely-used order that adding depressant prior to the collector.The zeta potential measurements indicated that BHA selectively adsorbed onto smithsonite surface,then not allowed the CLS adsorption onto the smithsonite surface rather than calcite surface because of the steric hindrance,thereby the smithsonite surface remained hydrophobic while calcite surface became more hydrophilic after the addition of CLS.As a result,the calcite flotation was completely depressed while the smithsonite flotation recovery was still in high value,leading to the optimal flotation separation performance.Cheng Liu Yuhua Zhu Kaihua Huang Siyuan Yang Zhian Liang 2021International Journal of Mining Science and Technology2021,31,6:2
18Heterogeneity in endothelial cells and widespread venous arterialization during early vascular development in mammals显示文摘Arteriogenesis rather than unspecialized capillary expansion is critical for restoring effective circulation to compromised tissues in patients.Deciphering the origin and specification of arterial endothelial cells during embryonic development will shed light on the understanding of adult arteriogenesis.However,during early embryonic angiogenesis,the process of endothelial diversification and molecular events underlying arteriovenous fate settling remain largely unresolved in mammals.Here,we constructed the single-cell transcriptomic Iandscape of vascular endothelial cells(VECs)during the time window for the occurrenee of key vasculogenic and angiogenic events in both mouse and human embryos.We uncovered two distinct arterial VEC types,the major artery VECs and arterial plexus VECs,and un expectedly diverge nt arteriove nous characteristics among VECs that are located in morphologically undistinguishable vascular plexus intra-embryonically.Using computational prediction and further lineage tracing of venous-featured VECs with a newly developed Nr2f2^(CrexER)Siyuan Hou Zongcheng Li Ji Dong Yun Gao Zhilin Chang Xiaochen Ding Shuaili Li Yunqiao Li Yang Zeng Qian Xin Baihan Wang Yanli Ni Xiaowei Ning Yuqiong Hu Xiaoying Fan Yu Hou Xianlong Li Lu Wen Bin Zhou Bing Liu Fuchou Tang Yu Lan 2022Cell Research2022,32,4:2
19Histones released by NETosis enhance the infectivity of SARS-CoV-2 by bridging the spike protein subunit 2 and sialic acid on host cells显示文摘Neutrophil extracellular traps(NETs)can capture and kill viruses,such as influenza viruses,human immunodeficiency virus(HIV),and respiratory syncytial virus(RSV),thus contributing to host defense.Contrary to our expectation,we show here that the histones released by NETosis enhance the infectivity of SARS-CoV-2,as found by using live SARS-CoV-2 and two pseudovirus systems as well as a mouse model.The histone H3 or H4 selectively binds to subunit 2 of the spike(S)protein,as shown by a biochemical binding assay,surface plasmon resonance and binding energy calculation as well as the construction of a mutant S protein by replacing four acidic amino acids.Sialic acid on the host cell surface is the key molecule to which histones bridge subunit 2 of the S protein.Moreover,histones enhance cell-cell fusion.Finally,treatment with an inhibitor of NETosis,histone H3 or H4,or sialic acid notably affected the levels of sgRNA copies and the number of apoptotic cells in a mouse model.These findings suggest that SARS-CoV-2 could hijack histones from neutrophil NETosis to promote its host cell attachment and entry process and may be important in exploring pathogenesis and possible strategies to develop new effective therapies for COVID-19.Weiqi Hong Jingyun Yang Jun Zou Zhenfei Bi Cai He Hong Lei Xuemei He Xue Li Aqu Alu Wenyan Ren Zeng Wang Xiaohua Jiang Kunhong Zhong Guowen Jia Yun Yang Wenhai Yu Qing Huang Mengli Yang Yanan Zhou Yuan Zhao Dexuan Kuang Junbin Wang Haixuan Wang Siyuan Chen Min Luo Ziqi Zhang Tiangi Lu Li Chen Haiying Que Zhiyao He Qiu Sun Wei Wang Guobo Shen Guangwen Lu Zhiwei Zhao Li Yang Jinliang Yang Zhenling Wang Jiong Li Xiangrong Song Lunzhi Dai Chong Chen Jia Geng Maling Gou Lu Chen Haohao Dong Yong Peng Canhua Huang Zhiyong Qian Wei Cheng Changfa Fan Yuquan Wei Zhaoming Su Aiping Tong Shuaiyao Lu Xiaozhong Peng Xiawei Wei 2022Cellular & Molecular Immunology2022,19,5:2
20Towards carbon neutrality:A study on China's long-term low-carbon transition pathways and strategies显示文摘As the world's biggest carbon dioxide(CO_(2))emitter and the largest developing country,China faces daunting challenges to peak its emissions before 2030 and achieve carbon neutrality within 40 years.This study fully considered the carbon-neutrality goal and the temperature rise constraints required by the Paris Agreement,by developing six long-term development scenarios,and conducting a quantitative evaluation on the carbon emissions pathways,energy transformation,technology,policy and investment demand for each scenario.This study combined both bottom-up and top-down methodologies,including simulations and analyses of energy consumption of end-use and power sectors(bottom-up),as well as scenario analysis,investment demand and technology evaluation at the macro level(top-down).This study demonstrates that achieving carbon neutrality before 2060 translates to significant efforts and overwhelming challenges for China.To comply with the target,a high rate of an average annual reduction of CO_(2) emissions by 9.3%from 2030 to 2050 is a necessity,which requires a huge investment demand.For example,in the 1.5℃ scenario,an investment in energy infrastructure alone equivalent to 2.6%of that year's GDP will be necessary.The technological pathway towards carbon neutrality will rely highly on both conventional emission reduction technologies and breakthrough technologies.China needs to balance a long-term development strategy of lower greenhouse gas emissions that meets both the Paris Agreement and the long-term goals for domestic economic and social development,with a phased implementation for both its five-year and long-term plans.Jiankun He Zheng Li Xiliang Zhang Hailin Wang Wenjuan Dong Ershun Du Shiyan Chang Xunmin Ou Siyue Guo Zhiyu Tian Alun Gu Fei Teng Bin Hu Xiu Yang Siyuan Chen Mingtao Yao Zhiyi Yuan Li Zhou Xiaofan Zhao Ying Li Danwei Zhang 2022Environmental Science and Ecotechnology2022,,1:2
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