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Dcalycinumines A-E,Alkaloids with Cytotoxic Activities of Nasopharyngeal Carcinoma Cells from Daphniphyllum calycinum

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Chinese Journal of Chemistry 2024年第1期42卷 35-42页

作者： Qing Tang Xiao-Yong Dai Qiang Lin Zhi-Peng Ling yi-Kun Hao Tian-Xi Zhu Ji-Hui zhang yi-Bo Hou Yao-Lan Li Lai-Qiang Huang jing-Hao Wang Guo-Cai Wang yu-Bo zhang Guangdong Clinical Translational Centerfor Targeted Drug Department of PharmacologySchoolof MedicineJinan University GuangzhouGuangdong 510632China Institute of Traditional Chinese Medicine&Natural Products Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs ResearchCollegeof PharmacyJinan UniversityGuangzhouGuangdong511443China Institute of Biopharmaceutical and Health Engineering Shenzhen Key Laboratory of Gene and Antibody TherapyState Key Laboratory of Chemical OncogenomicsShenzhen International Graduate SchoolTsinghua UniversityShenzhenGuangdong 518055China The Guangzhou Key Laboratoryof Basic and Translational Research on Chronic Disease Department of PharmacyThe First Affiliated HospitalJinan UniversityGuangzhouGuangdong 510630China

Fivenovel Daphniphyllum alkaloids,named dcalycinumines A-E(1-4,6),andeight previously described Daphniphyllum alkaloids(5,7-13)were isolated from Daphniphyllum *** 1 is the first Daphniphyllum alkaloid possessing a highly rearranged 6/6/6/7/5/6 hexacyclic architecture with a unique 3-methyl-1-azabicyclo[4,4,0]decane ring *** 2 represents a rare diamino Daphniphyllum alkaloid with an unprecedented 6/5/5/6/6/5 carbon skeleton featuring a unique 1-aza-6-azaspiro[4,5]decane unit,whereas 3 also represents a rare diamino Daphniphyllum alkaloid as a possible precursor of *** 4 is the second example of c-22-nor yuzurimine-type *** structures and absolute configurations were elucidated by HRESIMS,NMR spectroscopic analyses,EcD calculations,and single-crystal X-ray ***,compound 1 showed remarkable antitumor activities,which could inhibit the proliferation,migration and invasion of nasopharyngeal carcinoma cells,and promoted nasopharyngeal carcinoma cells apoptosis.

关键词： Daphniphyllum calycinum Natural products Daphniphyllum alkaloid Structural elucidation Biological activity Apoptosis Nasopharyngealcarcinoma

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SARS-CoV-2 envelope protein impairs airway epithelial barrier function and exacerbates airway inflammation via increased intracellular Cl^(-)concentration

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Signal Transduction and Targeted Therapy 2024年第4期9卷 1745-1759页

作者： Jian-Bang Xu Wei-Jie Guan yi-Lin zhang Zhuo-Er Qiu Lei Chen Xiao-chun Hou Junqing yue yu-yun Zhou Jie Sheng Lei Zhao yun-Xin Zhu jing Sun Jincun Zhao Wen-Liang Zhou Nan-Shan Zhong State Key Laboratory of Respiratory Disease National Clinical Research Center for Respiratory DiseaseNational Center for Respiratory MedicineDepartment of Respiratory and Critical Care MedicineGuangzhou Institute of Respiratory HealthThe First Affiliated Hospital of Guangzhou Medical UniversityGuangzhouP.R.China Department of Thoracic Surgery Guangzhou Institute for Respiratory HealthThe First Affiliated Hospital of Guangzhou Medical UniversityGuangzhouP.R.China Guangzhou National Laboratory GuangzhouP.R.China School of Life Sciences Sun Yat-sen UniversityGuangzhouP.R.China Guangdong Provincial Key Laboratory of Pharmaceutical Functional Genes School of Life SciencesSun Yat-sen UniversityGuangzhouP.R.China Department of Physiology School of Basic Medical SciencesGuangzhou Medical UniversityGuangzhouP.R.China

Severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)infection disrupts the epithelial barrier and triggers airway *** envelope(E)protein,a core virulence structural component of coronaviruses,may play a role in this *** could interfere with transepithelial Cl^(-)transport via impairment of the cystic fibrosis transmembrane conductance regulator(CFTR),which modulates nuclear factor kB(NF-kB)***,the pathological effects of SARS-CoV-2 E protein on airway epithelial barrier function,Cl^(-)transport and the robust inflammatory response remain to be ***,we have demonstrated that E protein down-regulated the expression of tight junctional proteins,leading to the disruption of the airway epithelial *** addition,E protein triggered the activation of Toll-like receptor(TLR)2/4 and downstream c-Jun N-terminal kinase(JNK)signaling,resulting in an increased intracellular Cl^(-)concentration([Cl^(-)]_(i))via up-regulating phosphodiesterase 4D(PDE4D)expression in airway epithelial *** elevated[Cl^(-)]_(i);contributed to the heightened airway inflammation through promoting the phosphorylation of serum/glucocorticoid regulated kinase 1(SGK1).Moreover,blockade of SGK1 or PDE4 alleviated the robust inflammatory response induced by E ***,these findings provide novel insights into the pathogenic role of SARS-CoV-2 E protein in airway epithelial damage and the ongoing airway inflammation during SARS-CoV-2 infection.

关键词： airway inflammation elevated

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Molecular Conformational Isomerization:An Efficient Way to Design Novel Emitters with Dual-Thermally Activated Delayed Fluorescence Characteristics and Their Optoelectronic and Bioimaging Applications

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CCS Chemistry 2024年第4期6卷 912-922页

作者： yi-Zhong Shi Ya-Fang Xiao Hao Wu Shao-Li zhang Xiao-chun Fan Ye Tian Chang-Qing Ye Kai Wang Jia yu chun-Sing Lee Xiao-Hong zhang School of Materials Science and Engineering Suzhou University of Science and TechnologySuzhou 215009 Institute of Functional Nano and Soft Materials(FUNSOM) Joint International Research Laboratory of Carbon-Based Functional Materials and DevicesSoochow UniversitySuzhou 215123Jiangsu Center of Super-Diamond and Advanced Films(COSDAF) Department of ChemistryCity University of Hong KongHong Kong SAR School of Biomedical Engineering The Second Affiliated HospitalGuangzhou Medical UniversityGuangzhou 510260 Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices Soochow UniversitySuzhou 215123Jiangsu Jiangsu Key Laboratory of Advanced Negative Carbon Technologies Soochow UniversitySuzhou 215123Jiangsu

Single-molecule luminophores with dual-thermally activated delayed fluorescence(TADF)properties are receiving increasing ***,how to achieve these goals requires more in-depth ***,we demonstrate a novel example emitter,10-(5-(2-(pyridin-3-yl)-[4,5′-bipyrimidin]-6-yl)pyridin-2-yl)-10Hphenoxazine(PmPy-PXZ),enabling dual-TADF properties due to its key feature of conformational *** a pyridine bridge can greatly reduce the steric hindrance and facilitate dual-stable conformations in the ground state,where the quasi-axial(QA)forms ***,unlike previously reported TADF molecules with dual confirmations,both theoretical and experimental measurements show that not only the quasi-equatorial(QE)forms but also the QA forms exhibit distinct TADF characteristics,which can be attributed to an additional higher reverse intersystem crossing *** is the first time that dual-TADF properties of single molecules have been achieved based on conformational *** applications in“self-doping”organic light-emitting diode and biomedical imaging have further been *** these results show the good potential of such dual-band TADF emitters based on molecular conformational isomerization.

关键词： dual-thermally activated delayed fluorescence conformational isomerization organic light-emitting diode biomedical imaging self-doping

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Evaluation of retinal and choroidal thickness changes in overweight and obese adults without ocular symptoms by swept-source optical coherence tomography

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International Journal of Ophthalmology(English edition) 2024年第4期17卷 707-712页

作者： Qing-Jian Li Sheng-Mei Zhou Ling-yu zhang An-Ni Lin Yang zhang jing Jiang Xin Che yi-Wen Qian Yan Liu Zhi-Liang Wang Department of Ophthalmology Huashan HospitalFudan UniversityShanghai 200040China Eye Institute of Xiamen University Xiamen University School of MedicineXiamen 361005Fujian ProvinceChina Department of Gastroenterology Huashan HospitalFudan UniversityShanghai 200040China

AIM:To evaluate the relationship of overweight and obesity with retinal and choroidal thickness in adults without ocular symptoms by swept-source optical coherence tomography(SS-OCT).METHODS:According to the body mass index(BMI)results,the adults enrolled in the cross-sectional study were divided into the normal group(18.50≤BMI<25.00 kg/m^(2)),the overweight group(25.00≤BMI<30.00 kg/m^(2)),and the obesity group(BMI≥30.00 kg/m^(2)).The one-way ANOVA and the Chi-square test were used for ***’s correlation analysis was used to evaluate the relationships between the measured ***:This research covered the left eyes of 3 groups of 434 age-and sex-matched subjects each:normal,overweight,and *** mean BMI was 22.20±1.67,26.82±1.38,and 32.21±2.35 kg/m^(2) in normal,overweight and obesity groups,*** choroid was significantly thinner in both the overweight and obesity groups compared to the normal group(P<0.05 for all),while the retinal thickness of the three groups did not differ ***’s correlation analysis showed that BMI was significantly negatively correlated with choroidal thickness,but no significant correlation was observed between BMI and retinal ***:Choroidal thickness is decreased in people with overweight or *** on changes in choroidal thickness contributes to the understanding of the mechanisms of certain ocular disorders in overweight and obese adults.

关键词： overweight obesity body mass index choroidal thickness retinal thickness swept-source optical coherence tomography

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Perinatal prevalence of birth defects in the Mainland of China,2000–2021:a systematic review and meta-analysis

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World Journal of Pediatrics 2024年第7期20卷 669-681页

作者： Liang-yu Kang Zi-Rui Guo Wei-jing Shang Gui-ying Cao yi-Ping zhang Qiao-Mei Wang Hai-Ping Shen Wan-Nian Liang Min Liu Department of Epidemiology and Biostatistics School of Public HealthPeking UniversityNo.38Xueyuan RoadHaidian DistrictBeijing100191China Vanke School of Public Health Tsinghua UniversityNo.1Tsinghua GardenHaidian DistrictBeijing100084China Department of Maternal and Child Health National Health Commission of the People’s Republic of ChinaNo.1Xizhimenwai South RoadXicheng DistrictBeijingChina Institute of Healthy China Tsinghua UniversityNo.1Tsinghua GardenHaidian DistrictBeijing100084China Key Laboratory of Epidemiology of Major Diseases(Peking University) Ministry of Education BeijingNo.38Xueyuan RoadHaidian DistrictBeijing100191China

Background Although birth defects are of great concern globally,the latest national prevalence has not yet been quantified in *** conducted a systematic review and meta-analysis to estimate the perinatal prevalence of birth defects in the Mainland of China between 2000 and *** We performed a systematic literature search of six databases for relevant articles published between January 1,2000,and March 1,*** included published studies that reported data on the perinatal prevalence of birth defects in the Mainland of *** DerSimonian and Laird random-effects models were used to estimate the pooled prevalence and its 95%confidence interval(CI).We also conducted subgroup analyses and univariable meta-regressions to explore differences in prevalence by time period,geographic region,and other *** We included 254 studies reporting the perinatal prevalence of birth defects and 86 studies reporting only the prevalence of specific types of birth *** on 254 studies covering 74,307,037 perinatal births and 985,115 cases with birth defects,the pooled perinatal prevalence of birth defects was 122.54(95%CI 116.20–128.89)per 10,000 perinatal births in the Mainland of China during 2000–***,the perinatal prevalence of birth defects increased from 95.60(86.51–104.69)per 10,000 in 2000–2004 to 208.94(175.67–242.22)per 10,000 in 2020–*** were also significant disparities among different geographical *** heart defects(33.35 per 10,000),clefts of the lip and/or palate(13.52 per 10,000),polydactyly(12.82 per 10,000),neural tube defects(12.82 per 10,000),and inborn errors of metabolism(11.41 per 10,000)were the five most common types of birth *** perinatal prevalence among males was significantly higher than that among females(β=2.44×10^(−3),P=0.003);a higher perinatal prevalence of birth defects was observed among perinatal births whose mothers were≥35 years(β=4.34×10^(−3),P<0.001).Conclusion Compreh

关键词： Birth defects China Perinatal Prevalence

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The FAST all sky HI survey(FASHI):The first release of catalog

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Science China(Physics,Mechanics & Astronomy) 2024年第1期67卷 112-133页

作者： Chuan-Peng zhang Ming Zhu Peng Jiang Cheng Cheng jing Wang Jie Wang Jin-Long Xu Xiao-Lan Liu Nai-Ping yu Lei Qian Haiyang yu Mei Ai yingjie jing Chen Xu Ziming Liu Xin Guan chun Sun Qingliang Yang Menglin Huang Qiaoli Hao FAST Collaboration Guizhou Radio Astronomical Observatory Guizhou UniversityGuiyang 550000China National Astronomical Observatories Chinese Academy of Sciences(CAS)Beijing 100101China Chinese Academy of Sciences South America Center for Astronomy National Astronomical ObservatoriesCASBeijing 100101China Kavli Institute for Astronomy and Astrophysics Peking UniversityBeijing 100871China

The FAST All Sky HI survey(FASHI)was designed to cover the entire sky observable by the Five-hundred-meter Aperture Spherical radio Telescope(FAST),spanning approximately 22000 square degrees of declination between-14°and+66°,and in the frequency range of 1050-1450 MHz,with the expectation of eventually detecting more than 100000 HI *** August 2020 and June 2023,FASHI had covered more than 7600 square degrees,which is approximately 35%of the total sky observable by *** has a median detection sensitivity of around 0.76 m Jy beam-1and a spectral line velocity resolution of~6.4 km s-1at a frequency of~1.4 *** of now,a total of 41741 extragalactic HI sources have been detected in the frequency range 1305.5-1419.5 MHz,corresponding to a redshift limit of z■*** cross-matching FASHI sources with the Siena Galaxy Atlas(SGA)and the Sloan Digital Sky Survey(SDSS)catalogs,we found that 16972(40.7%)sources have spectroscopic redshifts and 10975(26.3%)sources have only photometric *** of the remaining 13794(33.0%)HI sources are located in the direction of the Galactic plane,making their optical counterparts difficult to identify due to high extinction or high contamination of Galactic stellar *** on current survey results,the FASHI survey is an unprecedented blind extragalactic H I *** has higher spectral and spatial resolution and broader coverage than the Arecibo Legacy Fast ALFA Survey(ALFALFA).When completed,FASHI will provide the largest extragalactic HI catalog and an objective view of HI content and large-scale structure in the local universe.

关键词： surveys redshifts galaxies telescope radio lines HI line

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A von-Neumann-like photonic processor and its application in studying quantum signature of chaos

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Light(Science & Applications) 2024年第4期13卷 672-681页

作者： Shang yu Wei Liu Si-jing Tao Zhi-Peng Li yi-Tao Wang Zhi-Peng Zhong Raj BPatel yu Meng yuan-Ze Yang Zhao-An Wang Nai-Jie Guo Xiao-Dong Zeng Zhe Chen Liang Xu Ning zhang Xiao Liu Mu Yang Wen-Hao zhang zong-Quan Zhou Jin-Shi Xu Jian-Shun Tang Yong-Jian Han Chuan-Feng Li Guang-Can Guo CAS Key Laboratory of Quantum Information University of Science and Technology of ChinaHefei 230026China. CAS Center for Excellence in Quantum Information and Quantum Physics University of Science and Technology of ChinaHefei 230026China. Hefei National Laboratory University of Science and Technology of ChinaHefei 230088China. Research Center for Quantum Sensing Zhejiang LabHangzhou 310000China. Quantum Optics and Laser Science Blackett LaboratoryImperial College LondonPrince Consort RdLondon SW72AZUK. Clarendon Laboratory Department of PhysicsOxford UniversityParks Road OX13PUOxfordUK

Photonic quantum computation plays an important role and offers unique *** decades after the milestone work of Knill-Laflamme-Milburn,various architectures of photonic processors have been proposed,and quantum advantage over classical computers has also been *** is now the opportune time to apply this technology to real-world ***,at current technology level,this aim is restricted by either programmability in bulk optics or loss in integrated optics for the existing architectures of processors,for which the resource cost is also a *** we present a von-Neumann-like architecture based on temporal-mode encoding and looped structure on table,which is capable of multimode-universal programmability,resource-efficiency,phasestability and *** order to illustrate these merits,we execute two different programs with varying resource requirements on the same processor,to investigate quantum signature of chaos from two aspects:the signature behaviors exhibited in phase space(13 modes),and the Fermi golden rule which has not been experimentally studied in quantitative way before(26 modes).The maximal program contains an optical interferometer network with 1694 freely-adjustable *** current state-of-the-art,our architecture stands as the most promising candidate for real-world applications.

关键词： quantum signature chaos

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TAX1BP1 and FIP200 orchestrate non-canonical autophagy of p62 aggregates for mouse neural stem cell maintenance

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Zoological Research 2024年第4期45卷 937-950页

作者： yi-Fu Zhu Rong-Hua yu Shuai Zhou Pei-Pei Tang Rui zhang yu-Xin Wu Ran Xu Jia-Ming Wei ying-ying Wang Jia-Li zhang Meng-Ke Li Xiao-jing Shi yu-Wei zhang Guang-Zhi Liu Rick FThorne Xu Dong zhang Mian Wu Song Chen School of Life Sciences Division of Life Sciences and MedicineUniversity of Science and Technology of ChinaHefeiAnhui 230001China Translational Research Institute of Henan Provincial People’s Hospital and People'’s Hospital of Zhengzhou University Tianjian Laboratory of Advanced Biomedical SciencesAcademy of Medical SciencesZhengzhou UniversityZhengzhouHenan 450053China Institute of Medicinal Biotechnology Jiangsu College of NursingHuai’anJiangsu 223300China Laboratory Animal Center Academy of Medical ScienceZhengzhou UniversityZhengzhouHenan 450052China Henan Key Laboratory of Stem cell Differentiation and Modification Henan Provincial People’s HospitalHenan UniversityZhengzhouHenan 450053China School of Biomedical Sciences and Pharmacy The University of NewcastleNSW 2308Australia

Autophagy plays a pivotal role in diverse biological processes,including the maintenance and differentiation of neural stem cells(NSCs).Interestingly,while complete deletion of Fip200 severely impairs NSC maintenance and differentiation,inhibiting canonical autophagy via deletion of core genes,such as Atg5,Atg16l1,and Atg7,or blockade of canonical interactions between FIP200 and ATG13(designated as FIP200-4A mutant or FIP200 KI)does not produce comparable detrimental *** highlights the likely critical involvement of the non-canonical functions of FIP200,the mechanisms of which have remained ***,utilizing genetic mouse models,we demonstrated that FIP200 mediates non-canonical autophagic degradation of p62/sequestome1,primarily via TAX1BP1 in *** deletion of Tax1bp1 in fip200hGFAP conditional knock-in(cKI)mice led to NSC deficiency,resembling the fip200hGFAP conditional knockout(cKO)mouse ***,reintroducing wild-type TAX1BP1 not only restored the maintenance of NSCs derived from tax1bp1-knockout fip200hGFAP cKI mice but also led to a marked reduction in p62 aggregate ***,a TAX1BP1 mutant incapable of binding to FIP200 or NBR1/p62 failed to achieve this ***,conditional deletion of Tax1bp1 in fip200hGFAP cKO mice exacerbated NSC deficiency and p62 aggregate accumulation compared to fip200hGFAP cKO ***,these findings illustrate the essential role of the FIP200-TAX1BP1 axis in mediating the non-canonical autophagic degradation of p62 aggregates towards NSC maintenance and function,presenting novel therapeutic targets for neurodegenerative diseases.

关键词： Non-canonical autophagy TAX1BP1 FIP200 p62 Aggregates Neural stem cell

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Computed tomography-based radiomic model for the prediction of neoadjuvant immunochemotherapy response in patients with advanced gastric cancer

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World Journal of Gastrointestinal Oncology 2024年第10期16卷 4115-4128页

作者： Jun zhang Qi Wang Tian-Hui Guo Wen Gao yi-Miao yu Rui-Feng Wang Hua-Long yu jing-jing Chen Ling-Ling Sun Bi-yuan zhang Hai-Ji Wang Department of Radiation Oncology Affiliated Hospital of Qingdao UniversityQingdao 266000Shandong ProvinceChina Department of Radiology Affiliated Hospital of Qingdao UniversityQingdao 266000Shandong ProvinceChina Department of Pathology Affiliated Hospital of Qingdao UniversityQingdao 266000Shandong ProvinceChina

BACKGROUND Neoadjuvant immunochemotherapy(nICT)has emerged as a popular treatment approach for advanced gastric cancer(AGC)in clinical practice ***,the response of AGC patients to nICT displays significant heterogeneity,and no existing radiomic model utilizes baseline computed tomography to predict treatment *** To establish a radiomic model to predict the response of AGC patients to *** Patients with AGC who received nICT(n=60)were randomly assigned to a training cohort(n=42)or a test cohort(n=18).Various machine learning models were developed using selected radiomic features and clinical risk factors to predict the response of AGC patients to *** individual radiomic nomogram was established based on the chosen radiomic signature and clinical *** performance of all the models was assessed through receiver operating characteristic curve analysis,decision curve analysis(DCA)and the Hosmer Lemeshow goodness-of-fit *** The radiomic nomogram could accurately predict the response of AGC patients to *** the test cohort,the area under curve was 0.893,with a 95%confidence interval of *** indicated that the clinical application of the radiomic nomogram yielded greater net benefit than alternative *** A nomogram combining a radiomic signature and a clinical signature was designed to predict the efficacy of nICT in patients with *** tool can assist clinicians in treatment-related decision-making.

关键词： Gastric cancer Radiomics Computed tomography Neoadjuvant immunochemotherapy Machine learning Immunology

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Security of quantum key distribution with virtual mutually unbiased bases

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Science China(Physics,Mechanics & Astronomy) 2024年第7期67卷 13-21页

作者： Hong-Wei Li Chen-Peng Hao Zhi-Jiang Chen Li Gong yi-Fei Lu Yang Wang Jia-Ji Li chun-Mei zhang Rong Wang Zhen-Qiang yin Qing-yu Cai Henan Key Laboratory of Quantum Information and Cryptography SSF IEUZhengzhou 450000China Institute of Quantum Information and Technology Nanjing University of Posts and TelecommunicationsNanjing 210003China Department of Physics University of Hong KongHong Kong 999077China Key Laboratory of Quantum Information University of Science and Technology of ChinaHefei 230026China School of Information and Communication Engineering Hainan UniversityHaikou 570228China

In a perfect quantum key distribution(QKD)protocol,quantum states should be prepared and measured with mutually unbiased bases(MUBs).However,in a practical QKD system,quantum states are generally prepared and measured with imperfect MUBs using imperfect devices,possibly reducing the secret key rate and transmission *** analyze the security of a QKD system with imperfect MUBs,we propose virtual MUBs to characterize the quantum channel against collective attack,and analyze the corresponding secret key rate under imperfect state preparation and measurement *** generally,we apply the advantage distillation method for analyzing the security of QKD with imperfect MUBs,where the error tolerance and transmission distance can be sharply *** analysis method can be applied to benchmark and standardize a practical QKD system,elucidating the security analysis of different QKD protocols with imperfect devices.

关键词： quantum key distribution mutually unbiased bases advantage distillation

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