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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 | Three new diarylheptanoids and their antioxidant property显示文摘三新 diarylheptanoids,即,钠(5S,2E )-1,7-bis(4-hydroxyphenyl)-1-hydroxy-2-hepten-5-sulfonate (1 ) ,钠(5R,2E )-1,7-bis(4-hydroxyphenyl)-1-hydroxy-2-hepten-5-sulfonate (2 ) 和 3,5-diacetoxy-1-(3-methoxy-4,5-dihydroxyphenyl )-7-(4-hydroxy-3-methoxyphenyl)heptane (3 ) 从姜 officinale 的根茎被孤立。新混合物的结构根据分光镜的方法被阐明。3 的抗氧化剂活动在包含 DPPH 自由激进分子和超级氧化物阴离子激进分子的 vitro 模型旁边是 assayed。 | Chang Xin Zhou Xiang Yi Zhang Xiao Wu Dong Qiao Feng Tao Hui Dou Rong Ping Zhang Ke Xin Huang Xiao Kun Li Chang Xiang Chen Su Zeng Yu Zhao | 2007 | Chinese Chemical Letters2007，18，10： | 2 |
| 3 | Evaluation of Four Candidate VNTR Loci for Genotyping 225 Chinese Clinical Mycobacterium Tuberculosis Complex Strains显示文摘Objective To evaluate four candidate variable number tandem repeat (VNTR) loci for genotyping Mycobacterium tuberculosis complex strains.Methods Genomic sequences for two M.tuberculosis strains (CCDC5079 and CCDC5180) were generated,and using published sequence data,four candidate VNTR loci were identified.The VNTRs were used to genotype 225 Chinese clinical M.tuberculosis complex strains.The discriminatory power of the VNTRs was evaluated using BioNumerics 5.0 software.Results The Hunter-Gaston Index (HGI) for BJ1,BJ2,BJ3,and BJ4 loci was 0.634,0.917,0.697,and 0.910,respectively.Combining all four loci gave an HGI value of 0.995,thus confirming that the genotyping had good discriminatory power.The HGI values for BJ1,BJ2,BJ3,and BJ4,obtained from Beijing family strain genotyping,were 0.447,0.878,0.315,and 0.850,respectively.Combining all four loci produced an HGI value of 0.988 for genotyping the Beijing family strains.We observed unique patterns for M.bovis and M.africanum strains from the four loci.Conclusion We have shown that the four VNTR loci can be successfully used for genotyping M.tuberculosis complex strains.Notably,these new loci may provide additional information about Chinese M.tuberculosis isolates than that currently afforded by established VNTR loci typing. | JIANG Yi LIU Hai Can ZHENG Hua Jun TANG Biao DOU Xiang Feng ZHAO Xiu Qin ZHU Yong Qiang LU Bing WANG Sheng Yue DONG Hai Yan ZHAO Guo Ping ZHANG Yuan Yuan KAN Biao WAN Kang Lin | 2012 | Biomedical and Environmental Sciences2012，25，1： | 1 |
| 4 | Lyme Borreliosis-associated Risk Factors in Residents of Beijing Suburbs: a Preliminary Case-control Study显示文摘A population-based case-control study was conducted to evaluate the relative factors in the environments,agricultural works,outdoor activities,and the effectiveness of Lyme borreliosis(LB)-associated personal protective measures in Beijing.Thirty-four cases and 272 controls were personally interviewed by well-trained interviewers. | DOU Xiang Feng LYU Yan Ning JIANG Yi LIN Chang Ying TIAN Li Li WANG Quan Yi YANG Yu Song LI Chao SUN Yu Lan GUAN Zeng Zhi ZHANG Xiu Chun LI Xin Yu | 2014 | Biomedical and Environmental Sciences2014，27，10： | 0 |
| 5 | Space advanced technology demonstration satellite显示文摘The Space Advanced Technology demonstration satellite(SATech-01),a mission for low-cost space science and new technology experiments,organized by Chinese Academy of Sciences(CAS),was successfully launched into a Sun-synchronous orbit at an altitude of~500 km on July 27,2022,from the Jiuquan Satellite Launch Centre.Serving as an experimental platform for space science exploration and the demonstration of advanced common technologies in orbit,SATech-01 is equipped with 16 experimental payloads,including the solar upper transition region imager(SUTRI),the lobster eye imager for astronomy(LEIA),the high energy burst searcher(HEBS),and a High Precision Magnetic Field Measurement System based on a CPT Magnetometer(CPT).It also incorporates an imager with freeform optics,an integrated thermal imaging sensor,and a multi-functional integrated imager,etc.This paper provides an overview of SATech-01,including a technical description of the satellite and its scientific payloads,along with their on-orbit performance. | ZHANG XiaoFeng CHEN Wen ZHU XiaoCheng MENG Na HE JunWang BI XingZi ZHANG YongHe SHI Qi LI Fei LIU Rui FENG ZhengGong LIU Liu LI JinSong WU HaiChen XU DongXiao LI TaiJie HUANG JiangJiang LIU Shuo LI TianTong YU XianSheng GAO Yang ZHOU Heng BAN HanYu ZHANG YanLi ZHANG YueTing YANG YingQuan HE Tao DUAN XuLiang CHEN Xin WANG YaMin SUN AnTai ZHANG KuoXiang SUN Ying WANG YaoBin FAN ChengCheng XIONG ShaoLin LI XinQiao WEN XiangYang LING ZhiXing SUN XiaoJin ZHANG Chen BAI XianYong WANG ZhanShan DENG YuanYong TIAN Hui YANG JianFeng XUE HongBo SANG Peng LIU JinGuo ZHENG HuiLong ZHU Xiang HE JianWu LI Hui XU LuXiang XU ShuYan CHEN WenWu LIU ZhenDong WANG ZhaoLi MAO XiangLong GAO Rong LI ZongXuan DING GuoPeng WANG XinYu DOU RunJiang WENG LuBin LUO Hao WANG YaPing LIANG XianFeng FANG ZiRuo | 2024 | Science China(Technological Sciences)2024，67，1： | 0 |
| 6 | Design strategies of performance-enhanced Se cathodes for Li-Se batteries and beyond显示文摘Lithium-selenium(Li-Se)batteries are deemed as an emerging high energy density electrochemical energy storage system owing to their high specific capacity and volume capacity.Prior to their practicality,a series of critical challenges from the Se cathode side need to be overcome including low reactivity of bulk Se,shuttle effect of intermediates,sluggish redox kinetics of polyselenides,and volume change etc.In this review,recent progress on design strategies of functional Se cathodes are comprehensively summarized and discussed.Following the significance and key challenges,various efficient functionalized strategies for Se cathodes are presented,encompassing covalent bonding,nanostructure construction,heteroatom doping,component hybridization,and solid solution formation.Specially,the universality of these functional strategies are successfully extended into Na-Se batteries,K-Se batteries,and Mg-Se batteries.At last,a brief summary is made and some perspectives are offered with the goal of guiding future research advances and further exploration of these strategies. | Weiling Qiu Xiang Long Huang Ye Wang Chi Feng Haining Ji Hua Kun Liu Shi Xue Dou Zhiming Wang | 2023 | Journal of Energy Chemistry2023，，1： | 0 |
| 7 | “Dual-Lock-Dual-Key”Controlled Second Near-Infrared Molecular Probe for Specific Discrimination of Orthotopic Colon Cancer and Imaging-Guided Tumor Excision显示文摘Fluorescence imaging in the second infrared window(1000-1700 nm)has emerged as a promising approach to tumor diagnosis.However,the currently available second near-infrared(NIR-II)imaging agents are based on the“always on”modality or single biomarker activation,which are subject to limited imaging contrast,nonspecific response,and even false-positive diagnosis.Here,we developed a H2S/H+dual-stimuli responsive NIR-II fluorescent probe,WH-N3,for precise tumor delimitation and intraoperative fluorescence-guided surgical resection.WH-N3 itself is nonfluorescent,and it can only light up through synergistic activation by H2S and in the tumor acidic environment(TEM).Such a“duallock-dual-key”strategy-based activatable probe exhibited significantly higher tumor-to-normal tissue(T/N)ratios than the“always on”agent(ICG)and single parameter responsive counterpart probes in the imaging of colon tumors,which overexpresses H2S.WH-N3 was also able to visualize the tumor-derived endogenous H2S fluctuation and accurately differentiate tumor types based on H2S content discrepancy.More excitingly,under the guidance of the probe’s highly specific NIR-II fluorescence,a tiny orthotopic colon tumor with diameter down to 0.8 mm was facilely resected.We expect our dual-stimuli responsive strategy will contribute more reliable tools for specific discrimination and imaging-guided excision of tumor. | Kun Dou Chen Fan Wenqi Feng Yao Kong Yunhui Xiang Zijun Wang Zhihong Liu | 2022 | CCS Chemistry2022，4，11： | 0 |
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