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RNA viromes of Dermacentor nuttalli ticks reveal a novel uukuvirus in Qinghai Province,China

Virologica Sinica 2024年第4期39卷 537-545页

作者： Yaohui Fang Jun Wang Jianqing Sun Zhengyuan Su Shengyao Chen Jian Xiao Jun Ni Zhihong Hu Yubang He Shu Shen Fei Deng Key Laboratory of Special Pathogens and Biosafety and National Virus Resource Center Wuhan Institute of VirologyChinese Academy of SciencesWuhan 430071China University of Chinese Academy of Sciences Beijing 101408China Qinghai Lake National Nature Reserve Administration Xining 810000China Hubei Jiangxia Laboratory Wuhan 430200China Xinjiang Key Laboratory of Vector-borne infectious diseases Urumqi830002China

Ticks are a major parasite on the Qınghai-Tibet Plateau,western China,and represent an economic burden to agriculture and animal *** research on tick-borne pathogens that threaten humans and animals,the viromes of dominant tick species in this area remain *** this study,we collected Dermacentor nuttalli ticks near Qınghai Lake and identified 13 viruses belonging to at least six families through metagenomic *** viruses were of high abundance in pools,including Xınjiang tick-associated virus 1(XJTAV1),and three novel viruses:Qınghai Lake virus 1,Qınghai Lake virus 2(QHLV1,and QHLV2,unclassified),and Qınghai Lake virus 3(QHLV3,genus Uukuvirus of family Phenuiviridae in order Bunyavirales),which lacks the M *** minimum infection rates of the four viruses in the tick groups were 8.2%,49.5%,6.2%,and 24.7%,respectively,suggesting the prevalence of these viruses in *** ticks.A putative M segment of QHLV3 was identified from the next-generation sequencing data and further characterized for its signal peptide cleavage site,N-glycosylation,and transmembrane ***,we probed the L,M,and S segments of other viruses from sequencing data of other tick pools by using the putative M segment sequence of *** revealing the viromes of *** ticks,this study enhances our understanding of tick-borne viral communities in highland *** putative M segment identified in a novel uukuvirus suggests that previously identified uukuviruses without M segments should have had the same genome organization as typical *** findings will facilitate virus discovery and our understanding of the phylogeny of tick-borne uukuviruses.

关键词： Dermacentor nuttalli Qınghai Province Virome Uukuvirus M segment

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Flux Balance Analysis Reveals Potential Anti-HIV-1 Metabolic Targets

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infectious diseases & Immunity 2024年第2期4卷 61-68页

作者： Runpeng Han Fei Luo Haisheng Yu Yajun Yan Yan Gong Conghua Xie Liang Cheng Department of Radiation and Medical Oncology Medical Research InstituteZhongnan Hospital of Wuhan UniversityWuhan UniversityWuhan 430071China Frontier Science Center for Immunology and Metabolism Zhongnan Hospital of Wuhan UniversityState Key Laboratory of VirologyWuhan UniversityWuhan 430071China Guangzhou Eighth People's Hospital Guangzhou Medical UniversityGuangzhou 510440China Department of infectious diseases Zhongnan Hospital of Wuhan UniversityWuhan 430071China Department of Biological Repositories Zhongnan Hospital of Wuhan UniversityWuhan 430071China Wuhan Research Center for infectious diseases and Cancer Chinese Academy of Medical SciencesWuhan 430071China

Background:Human immunodeficiency virus type 1(HIV-1)remains a persistent global health ***,a continuous exploration of novel therapeutic strategies is essential.A comprehensive understanding of how HIV-1 utilizes the cellular metabolism machinery for replication can provide insights into new therapeutic ***:In this study,we performed a flux balance analysis using a genome-scale metabolic model(GEM)integrated with an HIV-1 viral biomass objective function to identify potential targets for anti–HIV-1 *** generated a GEM by integrating an HIV-1 production reaction into CD4+T cells and optimized for both host and virus optimal states as objective functions to depict metabolic profiles of cells in the status for optimal host biomass maintenance or for optimal HIV-1 virion *** analysis was used to predict biochemical reactions altered optimal for HIV-1 *** addition,we conducted in silico simulations involving gene and reaction knock-outs to identify potential anti–HIV-1 targets,which were subsequently validated by human phytohemagglutinin(PHA)blasts infected with ***:Differential analysis identified several altered biochemical reactions,including increased lysine uptake and oxidative phosphorylation(OXPHOS)activities in the virus optima compared with the host *** silico gene and reaction knock-out simulations revealed de novo pyrimidine synthesis,and OXPHOS could serve as potential anti–HIV-1 metabolic *** vitro assay confirmed that targeting OXPHOS using metformin could suppress the replication of HIV-1 by 56.6%(385.4±67.5 pg/mL in the metformintreated group vs.888.4±32.3 pg/mL in the control group,P<0.001).Conclusion:Our integrated host-virus genome-scale metabolic study provides insights on potential targets(OXPHOS)for anti-HIV therapies.

关键词： HIV-1 Flux balance analysis Genome-scale metabolic models Viral biomass objective function Therapeutic target

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Relationships Between Meteorological Factors and Mongolian Gerbils and Its Flea Burdens—Xilingol League,Inner Mongolia Autonomous Region,China,2012–2021

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China CDC weekly 2024年第23期6卷 547-552,I0012-I0018页

作者： Ke Li Zhenxu Wang Xiaohui Wei Haoqiang Ji Meng Shang Nan Chang Zihao Wang Chenran Guo Lei Xu Ning Zhao Qiyong Liu National Key Laboratory of Intelligent Tracking and Forecasting for infectious diseases National Institute for Communicable Disease Control and PreventionChinese Center for Disease Control and PreventionBeijingChina School of Public Health Nanjing Medical UniversityNanjing CityJiangsu ProvinceChina Cheeloo College of Medicine Shandong UniversitySchool of Public HealthJinan CityShandong ProvinceChina Vanke School of Public Health Tsinghua UniversityBeijingChina

Introduction:Plague is a significant global infectious disease,its spread is linked to host and flea *** conditions can impact flea populations and host densities,hence influencing plague *** the connection between meteorological factors,flea populations,and rodent densities in Inner Mongolia’s natural plague foci can aid in predicting and managing plague ***:Monthly data on flea index,rodent density,meteorological factors,and normalized difference vegetation index(NDVI)were collected for the study *** additive modeling(GAM)was used to analyze the non-linear and lag effects of meteorological factors on flea index and rodent *** equation modeling(SEM)was employed to investigate the relationships among meteorological factors,NDVI,flea index,and rodent ***:GAM analysis revealed that temperature,precipitation,relative humidity,and NDVI had significant linear,non-linear,and time-lagged impacts on the density of Mongolian gerbils and the flea *** analysis indicated that meteorological factors could directly influence the density and flea index of Mongolian gerbils,or indirectly impact NDVI,subsequently influencing gerbil density and the flea ***:Meteorological factors primarily influence gerbil density and flea index indirectly by affecting NDVI and the relationship between flea index and gerbil *** study offers additional support for the significance of meteorological factors and NDVI in influencing the vector-rodent system,offering valuable insights for predicting and managing plague outbreaks.

关键词： meteorological offering humidity

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SARS-CoV-2 aberrantly elevates mitochondrial bioenergetics to induce robust virus propagation

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Signal Transduction and Targeted Therapy 2024年第6期9卷 2702-2715页

作者： Hye Jin Shin Wooseong Lee Keun Bon Ku Gun Young Yoon Hyun-Woo Moon Chonsaeng Kim Mi-Hwa Kim Yoon-Sun Yi Sangmi Jun Bum-Tae Kim Jong-Won Oh Aleem Siddiqui Seong-Jun Kim Department of Convergent Research of Emerging Virus Infection Korea Research Institute of Chemical TechnologyDaejeon 34114Republic of Korea Gyeongnam Biohealth Research Center Gyeongnam Branch InstituteKorea Institute of ToxicologyJinju 52834Republic of Korea Center for Research Equipment Korea Basic Science InstituteCheongjuChungcheongbuk-do 28119Republic of Korea Department of Biotechnology Yonsei UniversitySeoul 03722Republic of Korea Division of infectious diseases School of MedicineUniversity of CaliforniaSan DiegoLa JollaCA 92093USA Present address:Department of Microbiology Chungnam National University School of MedicineDaejeon 35015Republic of Korea

Severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)is a‘highly transmissible respiratory pathogen,leading to severe multiorgan ***,knowledge regarding SARS-CoV-2-induced cellular alterations is *** this study,we report that SARSCoV-2 aberrantly elevates mitochondrial bioenergetics and activates the EGFR-mediated cell survival signal cascade during the early stage of viral ***-CoV-2 causes an increase in mitochondrial transmembrane potential via the SARS-CoV-2 RNAnucleocapsid cluster,thereby abnormally promoting mitochondrial elongation and the OXPHOS process,followed by enhancing ATP ***,SARS-CoV-2 activates the EGFR signal cascade and subsequently induces mitochondrial EGFR trafficking,contributing to abnormal OXPHOS process and viral *** EGFR inhibitors remarkably reduce SARS-CoV-2 propagation,among which vandetanib exhibits the highest antiviral *** of SARS-CoV-2-infected cells with vandetanib decreases SARS-CoV-2-induced EGFR trafficking to the mitochondria and restores SARS-CoV-2-induced aberrant elevation in OXPHOS process and ATP generation,thereby resulting in the reduction of SARS-CoV-2 ***,oral administration of vandetanib to SARS-CoV-2-infected hACE2 transgenic mice reduces SARS-CoV-2 propagation in lung tissue and mitigates SARS-CoV-2-induced lung *** also exhibits potent antiviral activity against various SARS-CoV-2 variants of concern,including alpha,beta,delta and omicron,in in vitro cell culture *** together,our findings provide novel insight into SARS-CoV-2-induced alterations in mitochondrial dynamics and EGFR trafficking during the early stage of viral infection and their roles in robust SARS-CoV-2 propagation,suggesting that EGFR is an attractive host target for combating COVID-19.

关键词： alterations aberrant thereby

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Development of an Integrated Disposable Device for SARSCoV-2 Nucleic Acid Extraction and Detection

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Biomedical and Environmental Sciences 2024年第6期37卷 639-646页

作者： Jing Ma Yanzhe Hao Meiling Hou Xiaoshan Zhang Jingduan Liu Haodi Meng Jiangbo Chang Xuejun Ma Jihua Liu Qingjie Ying Xianhua Wang Hongxia Li Yuxi Cao Xiaoguang Zhang National Key Laboratory of Intelligent Tracking and Forecasting for infectious diseases National Institute for Viral Disease Control and PreventionChinese Center for Disease Control and PreventionBeijing 102206China Beijing Runbio Biotechnology Development Co. LtdBeijing 100106China Beijing Beta Technology Co. LtdBeijing 101318China Jiangsu Qitian Gene Biotechnology Co. LtdWuxi 214135JiangsuChina

Objective To develop a highly sensitive and rapid nucleic acid detection method for the severe acute respiratory syndrome coronavirus 2(SARS-CoV-2).Methods We designed,developed,and manufactured an integrated disposable device for SARS-CoV-2 nucleic acid extraction and *** precision of the liquid transfer and temperature control was tested.A comparison between our device and a commercial kit for SARS-Cov-2 nucleic acid extraction was performed using real-time fluorescence reverse transcription polymerase chain reaction(RT-PCR).The entire process,from SARS-CoV-2 nucleic acid extraction to amplification,was *** The precision of the syringe transfer volume was 19.2±1.9μL(set value was 20),32.2±1.6(set value was 30),and 57.2±3.5(set value was 60).Temperature control in the amplification tube was measured at 60.0±0.0℃(set value was 60)and 95.1±0.2℃(set value was 95)***-Cov-2 nucleic acid extraction yield through the device was 7.10×10^(6) copies/mL,while a commercial kit yielded 2.98×10^(6) copies/*** mean time to complete the entire assay,from SARS-CoV-2 nucleic acid extraction to amplification detection,was 36 min and 45 *** detection limit for SARS-CoV-2 nucleic acid was 250 copies/*** The integrated disposable devices may be used for SARS-CoV-2 Point-of-Care test(POCT).

关键词： An integrated disposable device SARS-Cov-2 Nucleic acid detection

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Global outreach and networking promotion to accelerate tropical diseases elimination

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infectious diseases of Poverty 2024年第3期13卷 1-5页

作者： Shan Lv Xiao-Nong Zhou National institute of parasitic diseases at Chinese Center for Disease Control and Prevention(Chinese Center for Tropical diseases Research) NHC Key Laboratory of Parasite and Vector BiologyWHO Collaborating Centre for Tropical DiseasesShanghaiPeople’s Republic of China School of Global Health Chinese Center for Tropical Diseases ResearchShanghai Jiao Tong University School of MedicineShanghaiPeople’s Republic of China institute of One Health Shanghai Jiao Tong UniversityShanghaiPeople’s Republic of China Hainan Center for Tropical diseases Research(Hainan Subcenter of Chinese Center for Tropical diseases Research) HaikouPeople’s Republic of China

Cooperation and networking are powerful tools in the combating against tropical *** on a global scale is essential due to the transboundary nature of tropical *** plays a pivotal role in facilitating such *** cooperation and networking can foster innovation in disease control *** research can lead to the development of new drugs and vaccines,while shared surveillance data can enable the early detection and control of disease ***,consensus of cooperation and networking has been reached during the 7th Symposium on Surveillance-Response Systems Leading to Tropical diseases Elimination,which reflected in the two documents,i.e.,Consensus for Transboundary Tropical diseases Control,and Action Consensus of the Network of WHO Collaborating Centres Related to *** documents will improve the efforts in the fighting against tropical diseases through collective actions to achieve the United Nations’Sustainable Development Goals(SDGs).

关键词： Tropical diseases Cooperation Networking Elimination Sustainable development goals

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Establishment of a Multiplex Detection Method for Common Bacteria in Blood Based on Human Mannan-Binding Lectin Protein-Conjugated Magnetic Bead Enrichment Combined with Recombinase-Aided PCR Technology

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Biomedical and Environmental Sciences 2024年第4期37卷 387-398页

作者： ZHAO Zi Jin CHEN Xiao Ping HUA Shao Wei LI Feng Yu ZHAO Meng XING Chen Hao WANG Jie TIAN Feng Yu ZHANG Rui Qing LYU Xiao Na HAN Zhi Qiang WANG Yu Xin LI Hong Yi SHEN Xin Xin MA Xue Jun TIE Yan Qing Graduate School Hebei North UniversityZhangjiakou 075000HebeiChina Department of Clinical Laboratory Hebei General HospitalShijiazhuang 050051HebeiChina National Key Laboratory of Intelligent Tracking and Forecasting for infectious diseases NHC Key Laboratory of Medical Virology and Viral DiseasesNational Institute for Viral Disease Control and PreventionChinese Center for Disease Control and PreventionBeijing 102206China National institute for Communicable Disease Control and Prevention Chinese Center for Disease Control and PreventionBeijing 102206China Department of Clinical Laboratory Pathology Diagnostic Center Shiyan General HospitalShiyan 442000HubeiChina Graduate School Hebei Medical University Shijiazhuang 050031HebeiChina

Objective Recombinase-aided polymerase chain reaction(RAP)is a sensitive,single-tube,two-stage nucleic acid amplification *** study aimed to develop an assay that can be used for the early diagnosis of three types of bacteremia caused by Staphylococcus aureus(SA),Pseudomonas aeruginosa(PA),and Acinetobacter baumannii(AB)in the bloodstream based on recombinant human mannanbinding lectin protein(M1 protein)-conjugated magnetic bead(M1 bead)enrichment of pathogens combined with *** Recombinant plasmids were used to evaluate the assay *** blood influenza bacteria were used for the specific *** and clinical plasma samples were enriched with M1 beads and then subjected to multiple recombinase-aided PCR(M-RAP)and quantitative PCR(qPCR)*** analysis was used to evaluate the consistency between the two *** The M-RAP method had sensitivity rates of 1,10,and 1 copies/μL for the detection of SA,PA,and AB plasmids,respectively,without cross-reaction to other bacterial *** M-RAP assay obtained results for<10 CFU/mL pathogens in the blood within 4 h,with higher sensitivity than qPCR.M-RAP and qPCR for SA,PA,and AB yielded Kappa values of 0.839,0.815,and 0.856,respectively(P<0.05).Conclusion An M-RAP assay for SA,PA,and AB in blood samples utilizing M1 bead enrichment has been developed and can be potentially used for the early detection of bacteremia.

关键词： Staphylococcus aureus Pseudomonas aeruginosa Acinetobacter baumannii Human Mannan-binding lectin protein Bloodstream infection Recombinase-aided PCR assay Multiple detection

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A cross-sectional analysis of the effectiveness of a nutritional support programme for people with tuberculosis in Southern Madagascar using secondary data from a non-governmental organisation

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infectious diseases of Poverty 2024年第1期13卷 101-102页

作者： Mara Anna Franke Julius Valentin Emmrich Fierenantsoa Ranjaharinony Onja GbrilleRavololohanitra Harizaka Emmanuel Andriamasy Samuel Knauss Nadine Muller Global Digital Health Lab at Charité Center for Global Health Charité – Universitätsmedizin Berlin Berlin Germany London School of Hygiene and Tropical Medicine London UK Ärzte Für Madagaskar E.V. Leipzig Germany Heidelberg institute of Global Health Heidelberg University Heidelberg Germany Berlin institute of Health at Charité - Universitätsmedizin Berlin Berlin Germany Doctors for Madagascar Antananarivo Madagascar Speciality Network: infectious diseases and Respiratory Medicine Charité - Universitätsmedizin Berlin Berlin Germany

Background There is a strong,bi-directional link between tuberculosis(TB)and undernutrition:TB often causes undernutrition,and undernourished people are more likely to contract TB and experience worse ***,several TB nutritional support programmes exist;however,evidence on their effectiveness is limited and *** study evaluates the effect of a nutritional support programme implemented for people with TB in the Atsimo-Andrefana region,Madagascar in *** this programme,undernourished people with TB[with a body mass index(BMI)of<18.5 kg/m]receive 0.6 L of vegetable oil and 6.0 kg of a soy-wheat blend per month throughout their TB *** We analysed secondary non-governmental organisation data collected between January and Novem-ber 2022 in the Atsimo-Andrefana region,Southern Madagascar,including information on an individual's medical conditions(e.g.,type of TB,treatment outcomes)and nutritional status measured prior to,during,and after comple-tion of treatment(e.g.,height,weight,mid-upper arm circumference).We conducted descriptive analyses of patient baseline characteristics and outcomes to assess the impact of the provided nutritional support on the BMI of people With *** A total of 1310 people with TB were included in the study[9.9%(130)children under the age of 5,32.1%(420)children between 5 and 18 years,58.0%(760)adults].55.4% of children under 5,28.1% of children between ages 5 and 18,and 81.3%of adults were undernourished at treatment initiation.42.3%(55/130)of children under 5 experi-enced severe acute malnutrition at treatment *** the average BMl of adults with TB receiving food support increased over time,from 17.1 kg/m^(2)(interquartile range:15.8-18.3,range:10.3-22.5)to 17.9 kg/m^(2)(interquartile range:16.6-19.1,range:11.9-24.1),most adults remained undernourished even after completing TB *** The current TB nutritional support programme falls short of sufficiently increasing the BM

关键词： Tuberculosis Sub-Saharan Africa Undernutrition Nutritional support

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Function investigation of p11.5 in ASFV infection

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Virologica Sinica 2024年第3期39卷 469-477页

作者： Dan Yin Bin Shi Renhao Geng Yingnan Liu Lang Gong Hongxia Shao Kun Qian Hongjun Chen Aijian Qin Ministry of Education Key Laboratory for Avian Preventive Medicine Yangzhou UniversityJiangsu 225009China Jiangsu Co-innovation Center for Prevention and Control of Important Animal infectious diseases and Zoonoses Jiangsu 225009China Joint International Research Laboratory of Agriculture and Agri-Product Safety of Ministry of Education of China Jiangsu 225009China Shanghai Veterinary Research institute CAASShanghai200241China South China Agricultural University Guangzhou 510642China

Virus replication relies on complex interactions between viral *** the case of African swine fever virus(ASFV),only a few such interactions have been identified so *** this study,we demonstrate that ASFV protein p72 interacts with p11.5 using co-immunoprecipitation and liquid chromatography-mass spectrometry(LC-MS).It was found that protein p72 interacts specifically with p11.5 at sites amino acids(aa)1–216 of p72 and aa 1–68 of *** assess the importance of p11.5 in ASFV infection,we developed a recombinant virus(ASFVGZΔA137R)by deleting the A137R gene from the ASFVGZ *** with ASFVGZ,the infectious progeny virus titers of ASFVGZΔA137R were reduced by approximately 1.0 *** addition,we demonstrated that the growth defect was partially attributable to a higher genome copies-to-infectious virus titer ratios produced in ASFVGZΔA137R-infected MA104 cells than in those infected with *** finding suggests that MA104 cells infected with ASFVGZΔA137R may generate larger quantities of noninfectious ***,we found that p11.5 did not affect virus-cell binding or ***,we show for the first time the interaction between ASFV p72 and *** results effectively provide the relevant information of the p11.5 *** results extend our understanding of complex interactions between viral proteins,paving the way for further studies of the potential mechanisms and pathogenesis of ASFV infection.

关键词： African swine fever virus p72 protein p11.5 protein Protein interactions

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Clinical Trials of Respiratory Virus Infections: How to Address Challenges and Prepare for the Future

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infectious diseases & Immunity 2024年第3期4卷 101-102页

作者： Jingwen Ai Wenhong Zhang Department of infectious diseases Shanghai Key Laboratory of Infectious Diseases and Biosafety Emergency ResponseNational Medical Center for Infectious DiseasesHuashan HospitalShanghai Medical CollegeFudan UniversityShanghai 200040China Shanghai Sci-Tech InnoCenter for Infection and Immunity Shanghai 20052China institute of Infection and Health Fudan UniversityShanghai 200040China.

*** Prior to the coronavirus disease 2019(COVID-19)outbreak,the only antiviral treatment widely used in clinical settings was for ***,following the global pandemic,there has been renewed research interest in medications for respiratory viral *** trials of antiviral medications often need to consider multiple dimensions because of the significant differences in disease severity among *** example,during respiratory viral epidemic seasons,the clinical spectrum of diseases is usually complex,including asymptomatic infections,symptomatic infections(mild to moderate without hospitalization),severe cases(requiring hospitalization),and fatalities.

关键词： Clinical respiratory clinical

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