2,880 results match your criteria: "at the National Centre for Biosecurity & Infectious Disease[Affiliation]"

Plasmid hybrids as vectors for antibiotic resistance in environmental Escherichia coli.

Sci Total Environ

December 2024

CSIRO Environment, Ecosciences Precinct, 41 Boggo Road, Dutton Park, QLD 4102, Australia.

This study investigated the potential role of phages in the dissemination of antimicrobial resistance genes (ARGs) and virulence factor genes (VFGs) in Escherichia coli (E. coli). A comprehensive in silico analysis of 18,410 phage sequences retrieved from the National Center for Biotechnology Information database (NCBI) revealed distinct carriage patterns for ARGs and VFGs between lytic, temperate, and chronic phage types.

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Hepatocellular carcinoma (HCC) remains one of the most lethal malignant tumors. Multimodal therapeutics with synergistic effects for treating HCC have attracted increasing attention, for instance, designing biocompatible porphyrin-based nanomedicines for enzyme-mimetic and ultrasound (US)-activable reactive oxygen species (ROS) generation. Despite the promise, the landscape of such advancements remains sparse.

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Risk assessments are important tools to identify deficits in biosecurity management practices. A major strength of some existing tools is that they facilitate cross-country comparisons. However, a weakness is their failure to account for unique intra-national farming enterprise structures such as, for example, pasture-based dairying.

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The host gene regulates HBV replication via HBV PRE-induced nuclear export.

Acta Biochim Biophys Sin (Shanghai)

December 2024

Department of Infectious Diseases, Shanghai Key Laboratory of Infectious Diseases and Biosafety Emergency Response, National Medical Center for Infectious Diseases, Huashan Hospital, Fudan University, Shanghai 200040, China.

The persistent global burden of hepatitis B virus (HBV) infection has prompted ongoing investigations into host determinants of viral control. In this study, we investigate the regulatory influence of the host gene cleavage stimulation factor subunit 2 (CSTF2) on HBV replication dynamics. We demonstrate differential CSTF2 expression across the spectrum of HBV infection phases, with upregulated expression noted during the immune-reactive and inactive carrier states compared with the immune-tolerant phase.

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Attenuated sex-related DNA methylation differences in cancer highlight the magnitude bias mediating existing disparities.

Biol Sex Differ

December 2024

State Key Laboratory of Genetic Engineering, School of Life Sciences, Human Phenome Institute, Fudan University, Shanghai, China.

Background: DNA methylation (DNAm) influences both sex differences and cancer development, yet the mechanisms connecting these factors remain unclear.

Methods: Utilizing data from The Cancer Genome Atlas, we conducted a comprehensive analysis of sex-related DNAm effects in nine non-reproductive cancers, compared to paired normal adjacent tissues (NATs), and validated the results using independent datasets. First, we assessed the extent of sex differential DNAm between cancers and NATs to explore how sex-related DNAm differences change in cancerous tissues.

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Background: Despite Zambia implementing the World Health Organisation's (WHO) tri-pillar cervical cancer prevention goals 90-70-90 Prevent, Screen, and Treat, cervical cancer claims 2000 lives annually and reigns as the most common cancer among women, especially those living with HIV (WLHIV). Our study describes the national uptake of screening and treatment from the ZAMPHIA 2021 survey.

Methods: Utilising a two-stage cluster sampling approach, the study included participants aged 15 years and older across Zambia's ten provinces.

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Pathogenic microorganisms serve as a crucial material foundation for life sciences and the progression of the biotechnology industry, and they also constitute an essential prerequisite for scientific innovation. Over the past century, global initiatives aimed at the collection and utilization of microorganisms have been instrumental in facilitating fundamental scientific research and fostering advancements in biotechnology. This article provides a comprehensive review of the history of culture collections of human-infecting pathogenic microorganisms in China, with a specific emphasis on developments over the past two decades.

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Combination of spatial transcriptomics analysis and retrospective study reveals liver infection of SARS-COV-2 is associated with clinical outcomes of COVID-19.

EBioMedicine

December 2024

Liver Cancer Institute, Zhongshan Hospital, and Key Laboratory of Carcinogenesis and Cancer Invasion (Ministry of Education), Fudan University, Shanghai, China. Electronic address:

Background: Liver involvement is a common complication of coronavirus disease 2019 (COVID-19), especially in hospitalized patients. However, the underlying mechanisms involved are not fully understood.

Methods: Immunohistochemistry (IHC) staining of SARS-CoV-2 spike (S) and nucleocapsid (N) proteins was conducted on liver tissues from six patients with COVID-19.

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The role of genomics in public health surveillance has been accentuated by its crucial contributions during the COVID-19 pandemic, demonstrating its potential in addressing global disease outbreaks. While Africa has made strides in expanding multi-pathogen genomic surveillance, the integration into foodborne disease (FBD) surveillance remains nascent. Here we highlight the critical components to strengthen and scale-up the integration of whole genome sequencing (WGS) in foodborne disease surveillance across the continent.

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'Implementation of bio…what?' Farm workers' subjectivities in Spanish dairy cattle farms through an ethnographic approach.

Prev Vet Med

December 2024

School of Geography and Planning, Cardiff University, Cardiff, Wales CF10 3WA, United Kingdom. Electronic address:

This study explores the implementation of biosecurity measures by farm workers through daily work routines on dairy cattle farms in Spain. The implementation of biosecurity measures on dairy cattle farms is mainly decided by farmers and veterinarians, but it is carried out by both farmers and farm workers. However, farm workers may be affected by socio-employment factors such as the precariousness of their work such that implementation of biosecurity measures may be context dependent and may differ from official recommendations.

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Japanese encephalitis virus (JEV) NS2B-NS3 is a protein complex composed of NS3 proteases and an NS2B co-factor. The N-terminal protease domain (180 residues) of NS3 (NS3(pro)) interacts directly with a central 40-amino acid hydrophilic domain of NS2B (NS2B(H)) to form an active serine protease. In this study, the recombinant NS2B(H)-NS3(pro) proteases were prepared in and used to compare the enzymatic activity between genotype I (GI) and III (GIII) NS2B-NS3 proteases.

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The integration of behavioral theories in designing antimicrobial stewardship (AMS) interventions aimed at optimizing the antimicrobial prescription in veterinary practice is highly recommended. However, little is known about the factors that influence veterinarians' antimicrobial behavior for food-producing animals in lower- and middle-income settings like Bangladesh. There is a large body of research on the factors that influence veterinarian behavior of prescribing antimicrobials, however, there is a need for more studies that use comprehensive behavior change models to develop and evaluate interventions.

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Longhorn beetles (family Cerambycidae) are globally distributed insects with important ecological roles. Here we present the first discovery of fossil longhorn beetles from Australia. The two new taxa described, Ventiala beattiei gen.

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Accurately assessing potential side effects following botulinum neurotoxin (BoNT) injection remains a formidable challenge. To address this issue, an innovative approach is developed that combines a wearable temperature sensor with a sophisticated volatilomics technique, aimed at facilitating the rapid and convenient prediction of potential physical discomfort related to latrogenic botulism. The investigation identifies five volatile organic compounds (VOCs)-acetone, styrene, ethanol, 2-pentanone, and n-butano-as promising markers indicative of BoNT poisoning.

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Exacerbation of pulmonary fibrosis following acute lung injury via activin-A production by recruited alveolar macrophages.

J Thorac Dis

November 2024

Shanghai Key Laboratory of Lung Inflammation and Injury, Department of Pulmonary Medicine, Zhongshan Hospital, Fudan University, Shanghai, China.

Background: Acute respiratory distress syndrome (ARDS) is a complicated pathological cascade process of excessive pulmonary inflammation and alveolar epithelial cell apoptosis that results in respiratory dysfunction and failure. Some cases of ARDS can result in a more severe state of pulmonary fibrosis, referred to as postinjury lung fibrosis. The mortality and incidence rate of ARDS are high, particularly when it leads to continuing alveolar and interstitial fibrosis, which requires urgent treatment and appropriate management.

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Introduction: Rift Valley Fever (RVF) has caused outbreaks in Africa, impacting human health and animal trade. Recently, sporadic detections among humans and animals in East Africa have replaced large-scale outbreaks. We assessed RVF knowledge levels in East and Central Africa across countries with different epidemiological profiles.

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Microbial diversity and environmental determinants at Shanghai Hongqiao railway station: A comprehensive microbial assessment.

Environ Pollut

December 2024

Shanghai Institute of Infectious Disease and Biosecurity, School of Public Health, Key Lab of Public Health Safety of the Ministry of Education, NHC Key Lab of Health Technology Assessment, Fudan University, Shanghai, China; Children's Hospital of Fudan University, National Center for Children's Health, Shanghai, China. Electronic address:

The COVID-19 pandemic has underscored the importance of indoor environmental management in transportation hubs, which are critical for pathogen transmission due to high foot traffic. However, research has primarily focused on subways, with limited studies on train stations. In this study, samples were collected at the Shanghai Hongqiao Railway Station in winter, spring, and summer.

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Association between air pollution and hospitalization for acute exacerbation of kidney failure: A nationwide time-stratified case-crossover study in China.

J Hazard Mater

December 2024

Shanghai Institute of Infectious Disease and Biosecurity, School of Public Health, Key Lab of Public Health Safety of the Ministry of Education, NHC Key Lab of Health Technology Assessment, Fudan University, Shanghai 200032, China; National Center for Children's Health, Children's Hospital of Fudan University, Shanghai 201102, China. Electronic address:

Background: Air pollution is a potential risk factor for kidney disease; however, the impact on kidney failure exacerbation is underexplored. This study assessed the short-term effects of air pollution on hospitalization for kidney failure exacerbation.

Methods: This nationwide, time-stratified, case-crossover study included 45,249 hospitalized patients with kidney failure from 153 hospitals in 20 Chinese provinces between 2013 and 2020.

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Introduction: Coronaviruses and influenza viruses are significant respiratory pathogens that cause severe disease burdens and economic losses for society. Due to their diversity and evolution, vaccines typically require periodic updating to remain effective. An additional challenge is imposed by the possible coinfection of SARS-CoV-2 and influenza, which could increase disease severity.

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Tailoring microbial fitness through computational steering and CRISPRi-driven robustness regulation.

Cell Syst

December 2024

Biosciences Center, National Renewable Energy Laboratory, Golden, CO 80401, USA; School of Biology and Biological Engineering, South China University of Technology, Guangzhou, Guangdong 510006, China. Electronic address:

The widespread application of genetically modified microorganisms (GMMs) across diverse sectors underscores the pressing need for robust strategies to mitigate the risks associated with their potential uncontrolled escape. This study merges computational modeling with CRISPR interference (CRISPRi) to refine GMM metabolic robustness. Utilizing ensemble modeling, we achieved high-throughput in silico screening for enzymatic targets susceptible to expression alterations.

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Exploring bifunctional molecules for anti-SARS-CoV-2 and anti-inflammatory activity through structure-based virtual screening, SAR investigation, and biological evaluation.

Int J Biol Macromol

December 2024

Shanghai Frontiers Science Center of TCM Chemical Biology, Institute of Interdisciplinary Integrative Medicine Research, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China. Electronic address:

As new variants of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) continue to emerge, they raise increasing concerns about the efficacy of neutralizing antibodies and vaccines. This situation underscores the urgent need for specific drugs against the coronavirus disease 2019 (COVID-19). Given that COVID-19 is particularly associated with substantial inflammation, the development of novel, effective antiviral and anti-inflammatory agents represents a promising research direction.

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Comprehensive humoral and cellular immune responses to COVID-19 vaccination in adults with cancer.

Vaccine

December 2024

Monash University, Department of Oncology, School of Clinical Sciences, Melbourne, VIC, Australia; University of Bern, Department of Clinical Research (Medicine), Bern, Switzerland; University Cancer Centre, Bern, Switzerland.

Background: The COVID-19 pandemic has significantly impacted people with cancer. Initial vaccine studies excluded patients with malignancy. Immunocompromised individuals remain vulnerable to SARS-CoV-2, necessitating detailed understanding of vaccine response.

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Transmission dynamics of highly pathogenic avian influenza virus at the wildlife-poultry-environmental interface: A case study.

One Health

December 2024

Ontario Region Wildlife and Habitat Assessment Section, Canadian Wildlife Service, Environment and Climate Change Canada, Government of Canada, Ottawa, Ontario, Canada.

Avian influenza viruses (AIVs) regularly circulate between wild and domestic bird populations. Following several high-profile outbreaks, highly pathogenic AIVs (HPAIV) with zoonotic potential have been the subject of increasing attention. While we know that HPAIV is transmitted between domestic birds, wildlife, and the environment, little is known about persistence and spillover/back at these interfaces.

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A penta-component mpox mRNA vaccine induces protective immunity in nonhuman primates.

Nat Commun

December 2024

State Key Laboratory of Pathogen and Biosecurity, Academy of Military Medical Sciences, Beijing, China.

The recent worldwide outbreaks of mpox prioritize the development of a safe and effective mRNA vaccine. The contemporary mpox virus (MPXV) exhibits changing virological and epidemiological features, notably affecting populations already vulnerable to human immunodeficiency virus (HIV). Herein, we profile the immunogenicity of AR-MPXV5, a penta-component mRNA vaccine targeting five specific proteins (M1R, E8L, A29L, A35R, and B6R) from the representative contemporary MPXV clade II strain, in both naive and simian immunodeficiency virus (SIV)-infected nonhuman primates.

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