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| 1 | Humoral immune response to circulating SARS-CoV-2 variants elicited by inactivated and RBD-subunit vaccines显示文摘SARS-CoV-2 variants could induce immune escape by mutations on the receptor-binding domain(RBD)and N-terminal domain(NTD).Here we report the humoral immune response to circulating SARS-CoV-2 variants,such as 501Y.V2(B.1.351),of the plasma and neutralizing antibodies(NAbs)elicited by CoronaVac(inactivated vaccine),ZF2001(RBD-subunit vaccine)and natural infection.Among 86 potent NAbs identified by high-throughput single-cell VDJ sequencing of peripheral blood mononuclear cells from vaccinees and convalescents,near half anti-RBD NAbs showed major neutralization reductions against the K417N/E484K/N501Y mutation combination,with E484K being the dominant cause.VH3-53/VH3-66 recurrent antibodies respond differently to RBD variants,and K417N compromises the majority of neutralizing activity through reduced polar contacts with complementarity determining regions.In contrast,the 242–244 deletion(242–244Δ)would abolish most neutralization activity of anti-NTD NAbs by interrupting the conformation of NTD antigenic supersite,indicating a much less diversity of anti-NTD NAbs than anti-RBD NAbs.Plasma of convalescents and CoronaVac vaccinees displayed comparable neutralization reductions against pseudo-and authentic 501Y.V2 variants,mainly caused by E484K/N501Y and 242–244Δ,with the effects being additive.Importantly,RBD-subunit vaccinees exhibit markedly higher tolerance to 501Y.V2 than convalescents,since the elicited anti-RBD NAbs display a high diversity and are unaffected by NTD mutations.Moreover,an extended gap between the third and second doses of ZF2001 leads to better neutralizing activity and tolerance to 501Y.V2 than the standard three-dose administration.Together,these results suggest that the deployment of RBD-vaccines,through a third-dose boost,may be ideal for combating SARS-CoV-2 variants when necessary,especially for those carrying mutations that disrupt the NTD supersite. | Yunlong Cao Ayijiang Yisimayi Yali Bai Weijin Huang Xiaofeng Li Zhiying Zhang Tianjiao Yuan Ran An Jing Wang Tianhe Xiao Shuo Du Wenping Ma Liyang Song Yongzheng Li Xiang Li Weiliang Song Jiajing Wu Shuo Liu Xuemei Li Yonghong Zhang Bin Su Xianghua Guo Yangyang Wei Chuanping Gao Nana Zhang Yifei Zhang Yang Dou Xiaoyu Xu Rui Shi Bai Lu Ronghua Jin Yingmin Ma Chengfeng Qin Youchun Wang Yingmei Feng Junyu Xiao Xiaoliang Sunney Xie | 2021 | Cell Research2021,31,7: | 12 |
| 2 | In vivo self-assembled small RNAs as a new generation of RNAi therapeutics显示文摘RNAi therapy has undergone two stages of development,direct injection of synthetic siRNAs and delivery with artificial vehicles or conjugated ligands;both have not solved the problem of efficient in vivo siRNA delivery.Here,we present a proof-of-principle strategy that reprogrammes host liver with genetic circuits to direct the synthesis and self-assembly of siRNAs into secretory exosomes and facilitate the in vivo delivery of siRNAs through circulating exosomes.By combination of different genetic circuit modules,in vivo assembled siRNAs are systematically distributed to multiple tissues or targeted to specific tissues(e.g.,brain),inducing potent target gene silencing in these tissues.The therapeutic value of our strategy is demonstrated by programmed silencing of critical targets associated with various diseases,including EGFR/KRAS in lung cancer,EGFR/TNC in glioblastoma and PTP1B in obesity.Overall,our strategy represents a next generation RNAi therapeutics,which makes RNAi therapy feasible. | Zheng Fu Xiang Zhang Xinyan Zhou Uzair Ur-Rehman Mengchao Yu Hongwei Liang Hongyuan Guo Xu Guo Yan Kong Yuanyuan Su Yangyang Ye Xiuting Hu Wei Cheng Jinrong Wu Yanbo Wang Yayun Gu Sheng-feng Lu Dianqing Wu Ke Zen Jing Li Chao Yan Chen-Yu Zhang Xi Chen | 2021 | Cell Research2021,31,6: | 10 |
| 3 | Stability-improvement Method of Cascaded DC-DC Converters with Additional Voltage-error Mutual Feedback Control显示文摘The interaction between the source and load converters in cascaded DC-DC converters may cause instability.Thus,improving the stability of cascaded DC-DC converters is important.To solve the above-mentioned problem,a flowchart to improve the control method is established by calculating the eigenvalue sensitivity of a time-domain model of cascaded DC-DC converters.Further,an additional voltage-error mutual feedback control method is firstly proposed based on the flowchart provided in this study to improve the stability of cascaded DC-DC converters.Subsequently,the influence of the proposed mutual feedback control on the stability of cascaded DC-DC converters is analyzed.Finally,the effectiveness of the proposed control method is verified by simulation and experiment. | Zhongya Guo Hong Li Chen Liu Yangyang Zhao Wenzhe Su | 2019 | Chinese Journal of Electrical Engineering2019,5,2: | 4 |
| 4 | Decoding Cortical Glial Cell Development显示文摘Mouse cortical radial glial cells(RGCs)are primary neural stem cells that give rise to cortical oligodendrocytes,astrocytes,and olfactory bulb(OB)GABAergic interneurons in late embryogenesis.There are fundamental gaps in understanding how these diverse cell subtypes are generated.Here,by combining single-cell RNA-Seq with intersectional lineage analyses,we show that beginning at around E16.5,neocortical RGCs start to generate ASCL1^(+)EGFR^(+)apical multipotent intermediate progenitors(MIPCs),which then differentiate into basal MIPCs that express ASCL1,EGFR,OLIG2,and MKI67.These basal MIPCs undergo several rounds of divisions to generate most of the cortical oligodendrocytes and astrocytes and a subpopulation of OB interneurons.Finally,single-cell ATAC-Seq supported our model for the genetic logic underlying the specification and differentiation of cortical glial cells and OB interneurons.Taken together,this work reveals the process of cortical radial glial cell lineage progression and the developmental origins of cortical astrocytes and oligodendrocytes. | Xiaosu Li Guoping Liu Lin Yang Zhenmeiyu Li Zhuangzhi Zhang Zhejun Xu Yuqun Cai Heng Du Zihao Su Ziwu Wang Yangyang Duan Haotian Chen Zicong Shang Yan You Qi Zhang Miao He Bin Chen Zhengang Yang | 2021 | Neuroscience Bulletin2021,37,4: | 2 |
| 5 | Endoscopic sphincterotomy plus balloon dilation versus endoscopic sphincterotomy for choledocholithiasis: A meta‐analysis显示文摘 | Yangyang Liu Peizhu Su Yinghao Lin Siheng Lin Kun Xiao Pingyan Chen Shengli An Yang Bai Fachao Zhi | 2013 | J Gastroenterol Hepatol2013,,6: | 2 |
| 6 | SPM-IS: An auto-algorithm to acquire a mature soybean phenotype based on instance segmentation显示文摘Mature soybean phenotyping is an important process in soybean breeding;however, the manual process is time-consuming and labor-intensive. Therefore, a novel approach that is rapid, accurate and highly precise is required to obtain the phenotypic data of soybean stems, pods and seeds. In this research, we propose a mature soybean phenotype measurement algorithm called Soybean Phenotype Measure-instance Segmentation(SPM-IS). SPM-IS is based on a feature pyramid network, Principal Component Analysis(PCA) and instance segmentation. We also propose a new method that uses PCA to locate and measure the length and width of a target object via image instance segmentation. After 60,000 iterations, the maximum mean Average Precision(m AP) of the mask and box was able to reach 95.7%. The correlation coefficients R^(2) of the manual measurement and SPM-IS measurement of the pod length, pod width, stem length, complete main stem length, seed length and seed width were 0.9755, 0.9872, 0.9692, 0.9803,0.9656, and 0.9716, respectively. The correlation coefficients R^(2) of the manual counting and SPM-IS counting of pods, stems and seeds were 0.9733, 0.9872, and 0.9851, respectively. The above results show that SPM-IS is a robust measurement and counting algorithm that can reduce labor intensity, improve efficiency and speed up the soybean breeding process. | Shuai Li Zhuangzhuang Yan Yixin Guo Xiaoyan Su Yangyang Cao Bofeng Jiang Fei Yang Zhanguo Zhang Dawei Xin Qingshan Chen Rongsheng Zhu | 2022 | The Crop Journal2022,10,5: | 2 |
| 7 | Reliability Evaluation of All-User Terminals in LEO Satellite Communication Network Based on Modular Reduction显示文摘LEO satellite communication network has a large number of satellites distributed in low orbits,which leads to multiple coverage of many areas on the ground.It is hard work to describe and evaluate the reliability of LEO satellite communication network.To solve this problem,the reliability of all-user terminals in LEO satellite communication network is defined,and the corresponding reliability evaluation method is proposed in the paper.Due to the large scale of the interstellar network,a modular reduction algorithm using the modular network instead of the original network for state decomposition is proposed in this paper.Case study shows that the calculation time of the proposed method is equivalent to 6.28%of the original state space decomposition algorithm.On this basis,the reliability of LEO satellite communication network is further analyzed.It is found that the reliability of LEO satellite network was more sensitive to the reliability of Inter-Satellite link and the satisfaction of global coverage in the early stage,and it is more sensitive to the reliability of the satellite in the later stage.The satellite-ground link has a relatively constant impact on of LEO satellite network. | Yangyang Du Sifeng Liu Zhigeng Fang Su Gao | 2022 | China Communications2022,19,2: | 1 |
| 8 | Endoscopic sphincterotomy plus balloon dilation versus endoscopic sphincterotomy for choledocholithiasis: A meta‐analysis显示文摘 | Yangyang Liu Peizhu Su Yinghao Lin Siheng Lin Kun Xiao Pingyan Chen Shengli An Yang Bai Fachao Zhi | 2013 | J Gastroenterol Hepatol2013,,6: | 1 |
| 9 | N^(6)-methyladenosine methyltransferase plays a role in hypoxic preconditioning partially through the interaction with lncRNA H19显示文摘N^(6)-methyladenosine(m6A),a m ethylation in the N6 position of adenosine especially in the mRNA,exerts diverse physiological and pathological functions.However,the precise role of m 6A methylation in hypoxic preconditioning(HPC)is still unknown.Here,we observed that HPC treatm ent protected H9c2 cells against H2O2-induced injury,upregulated the m 6A level in the total RNA and the expression of methyltransferase like 3(METTL3),methyltransferase like 14(METTL14),and long noncoding RNA(lncRNA)H19.Either knockdown of METTL3 or METTL14 notably reversed the HPC-induced enhancement of cell viability,anti-apoptosis ability,and H19 expression.M ethylated RNA im m unoprecipitation(IP)indicated that knockdown of METTL3 or METTL14 decreased m 6A level in the lncRNA H19.Gain-of-function assay dem onstrated that H19 overexpression could partially rescue the decreased protection mediated by METTL3 or METTL14 knockdown in HPCtreated H9c2 cells.RNA binding protein im m unoprecipitation(RIP)assay showed that METTL3 and METTL14 could directly bind w ith H19.Our study identified a novel pattern of posttranscriptional regulation in HPC treatm ent.Since METTL3,METTL14,and lncRNA H19 were involved in HPC protection,they could be considered as potential biomarkers and therapeutic targets in HPC-derived cardiac rehabilitation and therapeutic approaches. | Yamin Su Rongfeng X u Rui Zhang Yangyang Qu Wenjie Zuo Zhenjun Ji Haihua Geng Min Pan Genshan Ma | 2020 | Acta Biochimica et Biophysica Sinica2020,52,12: | 1 |
| 10 | Efficient Extractive Desulfurization of Fuel Oils Using N-Pyrrolidone/Alkylphosphate-Based Ionic Liquids显示文摘Four BrØsted acid ionic liquids(ILS)[MMP][DMP],[MEP][DEP],[HMP][DMP]and[HEP][DEP]were syn-thesized and used as extractants for desulfurization of aromatic sulfur compounds in model oil.The mutual solubil-ity of four ILs were investigated.The extraction equilibrium of four ILs could be reached in as soon as 5 min and the extraction capability followed the order[MMP][DMP]>[MEP][DEP]>[HEP][DEP]>[HMP][DMP].The S extraction showed the highest efficiency under the conditions of 30℃,30 min and 1∶1(V/V)IL∶oil.Under the optimal condition,70.9%of thiophene(TS),76.9%of benzothiophene(BT)and 87.5%of dibenzothiophene(DBT)in n-octane could be efficiently removed by[MMP][DMP].The multiple extraction and regeneration performance of[MMP][DMP]for TS was also investigated and the results were satisfying.These results suggest that[MMP][DMP]has the best extraction capability and can serve as a promising solvent for extractive desulfurization of fuel oils. | Chunhai Liu Qihui He Zheng Zhang Yangyang Su Renfu Xu Baixing Hu | 2014 | Chinese Journal of Chemistry2014,32,5: | 1 |
| 11 | Effect of electroacupuncture at Zusanli(ST 36) on dorsal root nerve signals in normal rats显示文摘OBJECTIVE: To investigate how electroacupuncture (EA) at Zusanli (ST 36) with varying intensities of stimulation affects dorsal root nerve signals in normal rats. METHODS: Adult female Wistar rats were examined after drug-induced anesthesia and isolation of the L4 dorsal root associated with the Zusanli (ST 36) acupoint, using bipolar platinum electrodes. We applied EA at Zusanli (ST 36) with a continuous wave waveform for 1 min, and recorded action potentials in the L4 spinal cord dorsal root nerve with a frequency of 5 Hz and various current intensity levels (approximately 1-4 mA). In addition, we tested EA with a frequency of 15 Hz and current intensity of 1-4 mA. The L4 spinal cord dorsal nerve bundle action potentials were measured for 1 min of EA. To analyze the discharge frequency, we used the maximum Lyapunov exponent and Lempel-Ziv (LZ) complexity. RESULTS: At a fixed frequency, with increasing intensity of EA, dorsal root nerve filament discharge frequency revealed an initial increase, followed by a decreasing trend. A stimulation intensity of 3 mA induced a significantly greater discharge frequency, compared with stimulation intensities of 2 and 4 mA. EA stimulation evoked neuroelectric signals with chaotic characteristics. Increased intensity led to an initial increase in LZ complexity which then decreased, with a stimulation strength of 3 mA inducing the highest level of LZ complexity. CONCLUSION: EA of different intensities can induce nerve action potential encoding with different features. | Su Dongdong Geng Lianqi Zhang Jingsha Chen Yingyuan Liu Yangyang Yan Lijuan Guo Yi | 2019 | Journal of Traditional Chinese Medicine2019,39,5: | 1 |
| 12 | Gonadotropin-inhibitory hormone (GnIH) and its receptor in the female pig: cDNA cloning, expression in tissues and expression pattern in the reproductive axis during the estrous cycle显示文摘 | Xun Li Juan Su Zhihai Lei Yangyang Zhao Mengmeng Jin Rui Fang Lucheng Zheng Yang Jiao | 2012 | Peptides2012,,2: | 1 |
| 13 | Biological traits and life history of Pagiophloeus tsushimanus(Coleoptera:Curculionidae),a weevil pest on camphor trees in China显示文摘Cinnamomum camphora(L.)J.Presl.(Laurales:Lauraceae)is widely cultivated as an important landscape tree species in many urban areas in South China,especially in Shanghai City.Pagiophloeus tsushimanus Morimoto has become a destructive insect pest of C.camphora plantations in Shanghai,but the biological and ecological traits of this pest remain largely unknown.In this study,we investigated the damage and life history and determined the larval instar of P.tsushimanus.The results indicated that P.tsushimanus is a monophagous weevil pest,and C.camphora is the unique host tree species.C.camphora plantations in all administrative districts of Shanghai have been seriously damaged by P.tsushimanus.Adults often aggregate for feeding on the tender bark of twigs and occasionally on newly emerged buds.After experiencing damage,the twigs shrink and crack and the buds will shrink.Adults tend to repeatedly mate and oviposit,and all females lay single eggs at a time.Eggs will be covered with a mixture of secretions and wood chips by female adults.Larvae(1 st-2 nd instar)feed on the phloem,while 3 rd-5 th instar can bore into the phloem and the cambium.Massive tunnels,including three shapes(inverted'L',inverted'T',and inverted'Z'),were observed in the trunk of each tree,and resulted in swelling of the outer bark.P.tsushimanus has one life cycle per year in Shanghai.Both adults and larvae(3 rd-5 th instar)overwinter from early November to early April.Adults overwinter in grooves on the underside of branches or at branch nodes,and larvae overwinter in tunnels.Five larval instars of P.tsushimanus were determined according to Dyar’s and Crosby’s rules.The biological traits and life history of P.tsushimanus have been identified and can provide guidance in terms of pest control and plantation management. | Cong Chen Congcong Zhang Shouyin Li Han Zhu Binqi Fan Yan Wang Peng Su Yangyang Han Dejun Hao | 2021 | Journal of Forestry Research2021,32,5: | 0 |
| 14 | Effects of ion bombardment on microcrystalline silicon growth by inductively coupled plasma assistant magnetron sputtering显示文摘Hydrogenated microcrystalline silicon(c-Si:H) thin films were deposited by inductively coupled plasma assistant magnetron sputtering(ICP-MS) in an Ar-H 2 gas mixture.The role of ion bombardment in the growth of c-Si:H films was studied with increasing negative bias voltages on the substrate holder from 0 to 100 V.Raman scattering,X-ray diffraction(XRD),Fourier transform infrared(FTIR) spectroscopy and transmission electron microscopy(TEM) were performed to investigate the microstructure changes of deposited Si films.Raman scattering showed that the high energy ion bombardment resulted in crystalline degradation of Si films.The XRD results showed the decrease and even elimination of preferential growth orientation of crystalline Si films with ion bombardment energy increase.The SiH bonding configuration changes and the increase of bonded hydrogen concentration were determined with the analysis of FTIR spectra.Furthermore,the dramatic evolution of cross-sectional morphology of Si thin films was detected by TEM observation. | HE YangYang SU YuanJun ZHU Ming CAO BaoSheng DONG Bin | 2012 | Science China(Physics,Mechanics & Astronomy)2012,55,11: | 0 |
| 15 | Investigation of the Thermal Decomposition Behavior of Oleuropein with Many Pharmacological Activities from Olive by Thermogravimetry显示文摘Due to the existence of poly-hydroxyl structures,the temperature may have an effect on the thermal stability of oleuropein for its applications.In the current study,the thermal decomposition process and kinetics behavior of oleuropein from the olive resource were researched by thermogravimetric theoretical analysis methods and non-isothermal kinetics simulation.The results of thermogravimetry analysis showed the whole thermal decomposi-tion process of oleuropein involved two stages,with 21.22%of residue.It was also revealed that high heating rates of more than 20 K min^(-1) led to significant thermal hysteresis and inhibited the whole thermal decomposition behavior of oleuropein.Moreover,an investigation of the thermal decomposition kinetics indicated that the non-isothermal decomposition behavior followed a D3 model during thefirst stage(three-dimensional diffusion,Jander equation)and a D1 model in the second stage(one-dimensional diffusion).For thefirst and second ther-mal decomposition stages,the Kissinger,Friedman,Flynn-Wall-Ozawa,and Coats–Redfern four methods were applied to determine the activation energy(E=143.72 and 247.01 kJ mol^(-1))and Arrhenius preexponential factor(ln A=26.34 and 42.45 min^(-1)),respectively.Therefore,the study will provide good theoretical guidance for ther-mal stability and thermal transformation application of oleuropein.It will be suitable for low-temperature appli-cations in the cosmetic,food supplement and pharmaceutical industries. | Jiaojiao Yuan Su Tuo Yangyang Liu Jing He Shao-Hwa Hu Junling Tu | 2023 | Journal of Renewable Materials2023,11,8: | 0 |
| 16 | Targeting iron metabolism using gallium nanoparticles to suppress ferroptosis and effectively mitigate acute kidney injury显示文摘Ferroptosis plays a critical pathophysiological role in several types of acute kidney injury(AKI).The development of nanomaterials targeting iron metabolism and ferroptosis is a promising approach for AKI treatment.Herein,we synthesized gallic acid-gallium polyvinyl pyrrolidone nanoparticles(GGP NPs)as a potential iron-scavenging agent because of their nearly ionic radius and chemical similarity with iron.The results indicated that GGP NPs accumulated in tubular epithelial cells and showed good biocompatibility.GGP NPs significantly inhibited cisplatin(CP)-induced ferroptosis in HK-2 cells by reducing the accumulation of intracellular free iron and mitochondrial dysfunction,and suppressing the perturbations of ferroptosis processes,including lipid peroxidation,nicotinamide adenine dinucleotide phosphate(NADPH)and glutathione(GSH)levels,glutathione peroxidase 4(GPX4)activity,and ferritinophagy.An in vivo study demonstrated that treatment with GGP NPs significantly ameliorated the renal tubular injury and mitochondrial damage induced by CP treatment or ischemia-reperfusion injury.Our study suggests that GGP NPs may be an effective and promising candidate for AKI treatment and enable potential clinical translation. | Xishao Xie Yunjing Zhang Xinwan Su Junni Wang Xi Yao Dou Lv Qin Zhou Jianhua Mao Jianghua Chen Fei Han Yangyang Li Weiqiang Lin | 2022 | Nano Research2022,15,7: | 0 |