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Establishment of a humanized ST6GAL1 mouse model for influenza research

Animal Models and Experimental Medicine 2024年第3期7卷 337-346页

作者： Lyu Chao Han Feng Gao Qian Lv Limin Lu Ziwei Lu Shuangshuang Li Xiaoyan Hu Yuechao Yang Mengjie Zhao Yingze Liu Jun Lu Xuancheng Duo Shuguang National Key Laboratory of Intelligent Tracking and Forecasting for Infectious diseases Chinese Center for Disease Control and PreventionBeijingChina Institute of Zoology Chinese Academy of SciencesBeijingChina NHC Key Laboratory of Biosafety National Key Laboratory of Intelligent Tracking and Forecasting for Infectious DiseasesNational Institute for Viral Disease Control and PreventionChinese Center for Disease Control and PreventionBeijingChina Zhejiang Provincial Key Laboratory of Medical Genetics Key Laboratory of Laboratory MedicineMinistry of EducationSchool of Laboratory Medicine and Life SciencesWenzhou Medical UniversityWenzhouChina

Background:This study aimed to construct and characterize a humanized influenza mouse model expressing ***:Humanized fragments,consisting of the endothelial cell-specific K18 promoter,human ST6GAL1-encoding gene,and luciferase gene,were microinjected into the fertilized eggs of *** manipulated embryos were transferred into the oviducts of pseudopregnant female *** offspring were identified using *** exhibiting elevated expression of the hST6GAL1 gene were selectively bred for propagation,and in vivo analysis was performed for *** of the humanized gene was tested by performing immunohistochemical(IHC)*** and biochemical analyses using the whole blood and serum of humanized hST6GAL1 mice were ***:Successful integration of the human ST6GAL1 gene into the mouse genome led to the overexpression of human SiaT *** mice were identified as carrying copies of the humanized gene,and the in vivo analysis indicated that hST6GAL1gene expression in positive mice mirrored influenza virus infection *** IHC results revealed that hST6GAL1 was expressed in the lungs of humanized ***,the hematologic and biochemical parameters of the positive mice were within the normal ***:A humanized influenza mouse model expressing the hST6GAL1 gene was successfully established and characterized.

关键词： hST6GAL1 humanized mice influenza animal model

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A comprehensive index to evaluate cognitive health at the population scale

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中华医学杂志(英文版) 2024年第18期

作者： Lu Yuanyuan Mao Fan Yin Peng Chang Jie Zhao Zhenping Yang Kun Qin Qi Zhou Maigeng Tang Yi Department of Neurology and Innovation center for Neurological Disorders Xuanwu Hospital Capital Medical University National Center for Neurological Disorders Beijing China Department on Obesity and Metabolic diseases control and Prevention National Center for Chronic and Non-communicable Disease Control and Prevention Chinese Center for Disease Control and Prevention Beijing China Department on Vital Registry and Mortality Surveillance National Center for Chronic and Non-communicable Disease Control and Prevention Chinese Center for Disease Control and Prevention Beijing China National center for Neurological Disorders Xuanwu Hospital Capital Medical University Beijing China Department on Risk Factors Surveillance National Center for Chronic and Non-communicable Disease Control and Prevention Chinese Center for Disease Control and Prevention Beijing China National center for chronic and Non-communicable disease control and Prevention Chinese Center for Disease Control and Prevention Beijing China

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Emergence of a novel multi-resistance-mediating integrative and conjugative element ICEPmu3 in Pasteurella multocida

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Journal of Integrative Agriculture 2024年第11期 3938-3942页

作者： Jiao He Zhishuang Yang Mingshu Wang Renyong Jia Shun Chen Mafeng Liu Xinxin Zhao Qiao Yang Ying Wu Shaqiu Zhang Juan Huang Xumin Ou Di Sun Bin Tian Yu He Zhen Wu Anchun Cheng Dekang Zhu Research center of Avian diseases College of Veterinary MedicineSichuan Agricultural University International Joint Research center for Animal disease Prevention and control of Sichuan Province Engineering Research center of Southwest Animal disease Prevention and control Technology Ministry of Education Key Laboratory of Agricultural Bioinformatics Ministry of Education

Pasteurella multocida (PM) has been infecting a variety of hosts for a long time,causing sustained economic losses worldwide;however,there have been limited studies on its extensive adaptability (Aktories et al.2012).Analysis of strains data collected in our laboratory revealed that PM typically acquires foreign genes through transformation and conjugation,rather than transformation and *** and conjugative elements (ICEs)are a crucial mechanism that leads to abrupt changes in niche preferences and enhances environmental adaptability for bacteria,with their number far exceeding the number of plasmids and phages (Wozniak and Waldor 2010;Johnson and Grossman 2015;Botelho and Schulenburg 2021).Previous research has shown that the European bovine-sourced strain Pm36950 contains the experimentally transferable resistant ICEPmu1,which could integrate into the host chromosome or forming a circular intermediate (Michael et al.2012).Additionally,a few studies have suggested that PM strains isolated from European bovine and Asian swine might contain ICEs,but these claims lack experimental verification (Klima et al.2014;Moustafa et al.2015;Kadlec et al.2017;Peng et al.2017;Beker et al.2018;Schink et al.2022).Currently,there is no data available on ICE-carrying PM strains isolated from hosts outside of European cattle or Chinses *** letter presents a report on a novel ICE identified in the hypervirulent and multidrug-resistant PM HN141014 strain isolated from Chinese *** ICE was specifically analyzed for its resistance genes,transferable capacity and host diversity.

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A secure visualization platform for pathogenic genome analysis with an accurate reference database

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生物安全与健康(英文) 2024年第04期06卷 235-243页

作者： Fan Guomei Guo Chongye Zhang Qian Liu Dongmei Sun Qinglan Cui Zhigang Zhou Haijian Zhou Yuanchun Guo Zhibin Ma Juncai Wu Linhuan Microbial Resource and Big Data center Institute of Microbiology Chinese Academy of Sciences Beijing China Chinese National Microbiology Data center (NMDC) Beijing China National Key Laboratory of Intelligent Tracking and Forecasting for Infectious diseases National Institute for Communicable Disease Control and Prevention Chinese Center for Disease Control and Prevention Beijing China Computer Network Information center Chinese Academy of Sciences Beijing China State Key Laboratory of Microbial Resources Institute of Microbiology Chinese Academy of Sciences Beijing China

Investigating the genetic and developmental characteristics, infection transmission attributes, and epidemiological trends of pathogens using genomic data represents the foundation for pathogen surveillance and is a crucial prerequisite for guaranteeing global health security. To meet the analytical demands of research relating to pathogen prevention and control, we designed a secure visualization system capable of pathogen genome assembly, annotation, species identification, sequence typing, antibiotic resistance and virulence analysis, genomic mobile element and transferable resistance gene annotation, and phylogenetic tree reconstruction. For highly pathogenic organisms requiring complete data protection, we have developed a secure computing tool that utilizes a trusted execution environment, is combined with blockchain and privacy computing technologies, and is specifically designed for nucleotide basic local alignment search tool (BLASTn) comparison analysis. This technological advancement offers scientific support for in-depth investigations into pathogen transmission and epidemiological mechanisms, environmental adaptability, evolutionary trends, and immune evasion mechanisms, as well as the identification of new or emerging pathogen strains. This, in turn, aids efforts in infectious disease prevention, treatment, and research.

关键词： Pathogen surveillance One-stop analysis tools Sequence typing Horizontal transfer Secure computing

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The effects of selenium on the translation efficiency of selenoproteins Gpx1， Gpx4， and Txnrd1 in oxLDL-induced ***926 cells

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Food Science and Human Wellness 2024年

作者： Jiaqi Lu Jing Meng Yanzhi Lang Abdul Rehman Yamei Yan Linwu Ran School of Public Health， Ningxia Medical University Key Laboratory of Environmental Factors and chronic disease control Yinchuan School of Clinical Medicine， Ningxia Medical University Goji Berry Research Institute， Ningxia Academy of Agriculture and Forestry Sciences

Selenium is a crucial trace element that contributes to physiological processes in the body as selenoproteins. Selenoproteins serve as an integral role in the body in controlling the redox state of cells and protecting against damage induced by oxidative stress. This study aimed to investigate the effects and possible mechanism of selenium on selenoproteins expression in ***926 cells induced by oxLDL. The impact of selenium on the viability of ***926 cells was detected by the MTT method， and intracellular ROS level and mitochondrial membrane potential were assessed by fluorescent probe DCFH-DA and JC-1， respectively. RNA-seq， quantitative real-time PCR (RT-qPCR)， and western blot were used to investigate the selenoprotein expression. Selenoprotein mRNA translation efficiency was analyzed by ribosome profiling (Ribo-Seq) coupled with transcriptomics. Our data showed that selenium supplementation (0.5 μmol/L) significantly decreased ROS production， reduced mitochondrial inner membrane potential and increased the proliferative activity of ***926 cells induced by oxLDL. Moreover， The protective effects of selenium against oxLDL-induced ***926 cell injury were associated with the upregulation of the expressions of selenoproteins GPX1， GPX4， and TXNRD1. Furthermore， the expressions of selenoproteins GPX1 and GPX4 were hierarchically controlled， but the expressions of selenoproteins TXNRD1 were mainly regulated by oxLDL. Finally， Ribo-Seq coupled with transcriptomics results demonstrated that the expressions of selenoproteins GPX1， GPX4， and TXNRD1 were regulated at the translation process level. These findings suggested that selenium could have preventive effects in oxLDL induced ***926 cell injury by regulating the selenoprotein expression， and the selenoproteins expressions at the translation level in vascular endothelial cells need further study.

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Cooperative Sentinel Surveillance of Malaria in Laiza and Nearby Areas of Myanmar and Importation Threat Monitoring—China,2019–2023

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China CDC weekly 2024年第17期6卷 378-382页

作者： Peng Tian Shigang Li Yaowu Zhou Zurui Lin Xiaodong Sun Xiangrui Guo Chunli Ding Kaixia Duan Qiyan Chen Yulong Zhao Jing Wu Dakhidam Yaw Bee Jianwei Xu Yunnan Institute of Parasitic diseases Yunnan Provincial Key Laboratory of Vector-borne Disease Control and ResearchYunnan International Joint Laboratory of Tropical Infectious DiseasesPuer CityYunnan ProvinceChina Yingjiang County center for disease control and Prevention Yingjiang CountyYunnan ProvinceChina Laiza City Hospital Laiza TownKachin Special Region IIMyanmar

Introduction:Laiza and nearby areas(LNA)in Myanmar are identified as the primary malaria hotspots in the bordering regions of Yunnan Province,***:Six sentinel surveillance sites were established at the China-Myanmar border in LNA to monitor *** from 2019 was used as a baseline to analyze malaria incidence and trends in LNA and Myanmar,as well as the importation of malaria cases into China from 2019 to ***:Plasmodium vivax was the predominant species,representing 99.95%(14,060/14,066)of confirmed malaria cases in LNA.A total of 8,356 malaria cases were identified in 2023,with an annual parasite incidence(API)of 19.78 per 100 *** to 2019,the incidence rate ratio was 21.47(95%confidence interval:18.84,24.48),indicating that the API in 2023 was 21.47 times higher than that in *** Yunnan,out of 1,016 reported cases,545 imported cases(53.64%)originated from LNA and spread to 18(13.95%)out of 129 *** provinces in China,including Yunnan,reported imported malaria cases from LNA in ***:The increase in population,particularly among internally displaced persons,along with inadequate healthcare services,has led to a notable resurgence of malaria in *** resurgence poses a risk to preventing the re-emergence of malaria transmission in *** is an urgent need for novel collaborative policies,as well as financial and technical assistance,to enhance malaria control efforts in LNA,Myanmar.

关键词： Malaria Myanmar originated

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A Brief of Cold Spell Warning Actions of the National Meteorological center of China Meteorological Administration

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China CDC weekly 2024年第5期6卷 88-91页

作者： Taiyuan Zhang Mengxue Zhang Qiutong Li Yu Lan Huafeng Meteorological Media Group of China Meteorological Administration(CMA) BeijingChina National Institute of Environmental Health Chinese Center for Disease Control and PreventionBeijingChina The National Meteorological center of China Meteorological Administration(CMA) BeijingChina

The“Outline for High-Quality Development of Meteorology(2022-2035)”was published by the State Council of the People’s Republic of China in April 2022(1).This publication highlights the essential role of meteorological disaster warnings,particularly cold spell warnings,in preventing and mitigating *** outline also sets forth stricter expectations for enhancing the overall capacity of society in terms of meteorological disaster preparedness and response.

关键词： disaster meteorological warning

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Mathematical Analysis on a General Delayed HBV Model with Capsids and Two Infection Routes

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Acta Mathematicae Applicatae Sinica 2024年第2期40卷 508-525页

作者： Li-li LIU Hong-gang WANG Ya-zhi LI Shanxi Key Laboratory of Mathematical Techniques and Big Data Analysis on disease control and Prevention Complex Systems Research CenterShanxi UniversityTaiyuan 030006China School of Mathematics and Statistics Qiannan Normal University for NationalitiesDuyun 558000China

Considering that HBV belongs to the DNA virus family and is hepatotropic,we model the HBV DNA-containing capsids as a *** this paper,a delayed HBV infection model is established,where the general incidence function and two infection routes including cell-virus infection and cell-cell infection are *** to some preliminaries,including well-posedness,basic reproduction number and existence of two equilibria,we obtain the threshold dynamics for the *** illustrate numerical simulations to verify the above theoretical results,and furthermore explore the impacts of intracellular delay and cell-cell infection on the global dynamics of the model.

关键词： delayed HBV model capsids general incidence function two infection routes global stability

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Association between plasma growth differentiation factor 15 levels and pre-eclampsia in China

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chronic diseases and Translational Medicine 2024年第2期10卷 140-145页

作者： Shuhong Xu Yicheng Lu Mengxin Yao Zhuoqiao Yang Yan Chen Yaling Ding Yue Xiao Fei Liang Jiani Qian Jinchun Ma Songliang Liu Shilan Yan Jieyun Yin Qiuping Ma Taicang Affiliated Hospital of Soochow University The First People's Hospital of TaiCangSoochow UniversitySuzhouJiangsuChina Department of Epidemiology and Health Statistic Jiangsu Key Laboratory of Preventive and Translational Medicine for Major Chronic Non-communicable DiseasesSuzhou Medical College of Soochow UniversitySuzhouJiangsuChina Changshu Hospital Affiliated to Nanjing University of Chinese Medicine SuzhouJiangsuChina Department of chronic disease Gusu Center for Disease Control and PreventionSuzhouJiangsuChina Huzhou First People's Hospital HuzhouZhejiangChina

Background Growth differentiation factor-15(GDF-15)is a stress response protein and is related to cardiovascular diseases(CVD).This study aimed to investigate the association between GDF-15 and pre-eclampsia(PE).Method The study involved 299 pregnant women,out of which 236 had normal pregnancies,while 63 participants had *** serum levels of GDF-15 were measured by using enzyme-linked immunosorbent assay kits and then translated into multiple of median(MOM)to avoid the influence of gestational week at blood *** models were performed to estimate the association between GDF-15 MOM and PE,presenting as odd ratios(ORs)and 95%confidence intervals(CIs).Results MOM of GDF-15 in PE participants was higher compared with controls(1.588 vs.1.000,p1)had a 4.74-fold(95%CI=2.23–10.08,p<0.001)increased risk of PE,adjusted by age,preconceptional body mass index,gravidity,and *** These results demonstrated that higher levels of serum GDF-15 were associated with ***-15 may serve as a biomarker for diagnosing PE.

关键词： growth differentiation factor 15 macrophage inhibiting cytokine 1 pre-eclampsia

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Socioeconomic inequalities in cancer incidence and mortality:An analysis of GLOBOCAN 2022

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Chinese Medical Journal 2024年第12期137卷 1407-1413页

作者： Wei Cao Kang Qin Feng Li Wanqing Chen Office of Cancer Screening National Cancer Center/National Clinical Research Center for Cancer/Cancer HospitalChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijing 100021China Hangzhou center for disease control and Prevention HangzhouZhejiang 310021China The Third People’s Hospital of Xiaoshan HangzhouZhejiang 311251China

Background:Given the recent updates in cancer burden estimates by GLOBOCAN 2022,this study was undertaken to provide pertinent perspectives within the context of the Human Development Index(HDI)and major world ***:Datasets sourced from GLOBOCAN encompassed cancer cases and deaths across all cancer types in 2022,alongside projections up to *** incidences and deaths of the top 10 cancers within China and four distinct HDI-classified regions were compared using descriptive ***-standardized incidence rates(ASIRs)and mortality rates(ASMRs)worldwide for the most prevalent cancers in 2022 across ten largest economies and four-tier HDIs were *** top five cancer types concerning both incidence and mortality in China were delineated by sex and age ***:In males,prostate cancer predominated in countries with low,high(except China),and very high *** and liver cancers were prominent causes of death in countries with low *** females,breast and cervical cancers predominated in countries with low-to-medium *** and colorectal cancer incidence and deaths increased with high HDI for both *** and ASMRs for breast,prostate,lung,and colorectal cancers in the top 10 economies were higher than the global ***,liver,stomach,and cervical cancers in most Western countries exhibited lower *** China,hematologic malignancies(43%)were prevalent among children aged 0-14 years,whereas thyroid cancer led among adolescents and young adults aged 15-39 *** incidence and mortality,lung cancer predominated for individuals over 40 years,except for females aged 40-59 years,in whom breast cancer *** trends indicated substantial increases in new cancer cases(76.6%)and deaths(89.7%)over the next three ***:Infection-and poverty-related cancer burdens are offset by increased prostate,breast,colorectal,and lung cancer incidence associated with rapid societal and economic transi

关键词： Incidence Mortality Tumor burden China Human Development Index Hematologic neoplasms Lung neoplasms Breast neoplasms Colorectal neoplasms Thyroid neoplasms Liver neoplasms Prostatic neoplasms Early detection of cancer

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