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

Biological and genomic analyses of , a novel potential fungal pathogen closely related to (syn. ) and .

New Microbes New Infect

December 2024

Shanghai Institute of Infectious Disease and Biosecurity, Department of Infectious Diseases, Shanghai Key Laboratory of Infectious Diseases and Biosafety Emergency Response, National Medical Center for Infectious Diseases, Huashan Hospital, State Key Laboratory of Genetic Engineering, School of Life Science, Fudan University, Shanghai, PR China.

Article Synopsis
  • - A new species of fungus, identified from a COVID-19 patient's sputum, has been discovered, belonging to the genus *Candida*.
  • - This novel species is closely related to other known fungal pathogens but shows notable genetic differences and chromosomal rearrangements compared to them.
  • - Although it does not thrive at human body temperature, it has been found to increase in lung tissue during a mouse infection model, suggesting it may act as an opportunistic pathogen.
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Immune correlates of protection as a game changer in tuberculosis vaccine development.

NPJ Vaccines

October 2024

Shanghai Public Health Clinical Center & Shanghai Institute of Infectious Diseases and Biosecurity, Fudan University, Shanghai, 201508, China.

The absence of validated correlates of protection (CoPs) hampers the rational design and clinical development of new tuberculosis vaccines. In this review, we provide an overview of the potential CoPs in tuberculosis vaccine research. Major hindrances and potential opportunities are then discussed.

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Plasma proteomics-based organ-specific aging for all-cause mortality and cause-specific mortality: a prospective cohort study.

Geroscience

October 2024

State Key Laboratory of Genetic Engineering, Human Phenome Institute, Zhangjiang Fudan International Innovation Center, and School of Life Science, Fudan University, Songhu Road 2005, Shanghai, China.

Individual's aging rates vary across organs. However, there are few methods for assessing aging at organ levels and whether they contribute differently to mortalities remains unknown. We analyzed data from 45,821 adults in the UK Biobank, using plasma proteomics and machine learning to estimate biological ages for 12 major organs.

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Natural killer cell engagers: From bi-specific to tri-specific and tetra-specific engagers for enhanced cancer immunotherapy.

Clin Transl Med

November 2024

Department of Biological Medicines & Shanghai Engineering Research Center of Immunotherapeutics, Fudan University School of Pharmacy, Shanghai, China.

Article Synopsis
  • Natural killer cell engagers (NKCEs) are specialized antibodies that activate NK cells to target and destroy cancer cells, making them a promising area of immunotherapy.
  • The review highlights the move from bi-specific to multi-specific NKCEs, which improves their effectiveness and versatility in treating various cancers.
  • Challenges for NKCEs include improving their pharmacokinetics, managing the tumor environment, and the need for combination therapies, with ongoing research focused on enhancing these therapies for better clinical outcomes.
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spp. Antibody Seroprevalence in Stray Dogs and Cats: A Study in Milan, Northern Italy.

Vet Sci

October 2024

Department of Veterinary Medicine and Animal Health (DIVAS), University of Milan, Via dell'Università 6, 26900 Lodi, Italy.

Article Synopsis
  • Leptospirosis is a re-emerging infectious disease affecting humans and dogs, with the seroprevalence in pets in Italy being largely unknown.
  • A study conducted in a Milan shelter evaluated 106 dogs and 51 cats for leptospiral antibodies using the microscopic agglutination test, revealing 21.7% of dogs tested positive, while no cats showed antibodies.
  • Seropositivity was significantly higher in spring/summer (32.7%) compared to autumn/winter (11.1%), emphasizing the need for ongoing surveillance in shelters to address the zoonotic risks associated with this disease.
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Sweetpotato ( L.) is an essential food crop globally, especially for farmers facing resource limitations. Like other crops, sweetpotato cultivation faces significant production challenges due to viral infections.

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Time-Responsive Activity of Engineered Bacteria for Local Sterilization and Biofilm Removal in Periodontitis.

Adv Healthc Mater

October 2024

Academy of Medical Engineering and Translational Medicine, Tianjin University, Tianjin, 300072, China.

Article Synopsis
  • Periodontitis is a common condition affecting many people, and current treatments struggle to penetrate the complex biofilms that protect bacteria.
  • A new strategy using a probiotic called E. coli Nissle 1917, enhanced with D-amino acids, is designed to effectively breach these biofilms and treat periodontitis by producing antimicrobial peptides and hydrogen.
  • Testing in a rat model shows that this method, which reduces harmful bacteria without causing resistance or side effects, could lead to an effective topical treatment for periodontitis in humans.
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Background: People with human immunodeficiency virus (HIV) smoke at much higher rates than the general population, resulting in higher risk for tobacco-related morbidity and mortality. The efficacy of smoking cessation interventions among people with HIV in lower-middle-income countries remains unclear.

Methods: We conducted a randomized, 2 × 2 factorial design trial based in Nairobi, Kenya, to evaluate the efficacy of bupropion versus placebo, and a culturally tailored behavioral cessation therapy, called Positively Smoke Free (PSF), versus standard of care for people with HIV who smoke.

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Maternal asthma is associated with increased rates of neonatal lung disease, and fetuses from asthmatic ewes have fewer surfactant-producing cells and lower surfactant-protein B gene (SFTPB) expression than controls. Antenatal betamethasone increases lung surfactant production in preterm babies, and we therefore tested this therapy in experimental maternal asthma. Ewes were sensitised to house dust mite allergen, and an asthmatic phenotype induced by fortnightly allergen lung challenges; controls received saline.

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Avian pox is a disease that has devastating impacts on both poultry and wild bird species. Avian pox is caused by various strains of avipoxviruses (APV). Nevertheless, the virus has been detected in pigeons and chickens that are raised in backyard areas, leading to substantial financial damage for small-scale producers.

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is the causal agent of myrtle rust in over 480 species within the family Myrtaceae. Lineages of are structured by their hosts in the native range, and some have success in infecting newly encountered hosts. For example, the pandemic biotype has spread beyond South America, and proliferation of other lineages is an additional risk to biodiversity and industries.

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Global risk dynamics of Borrelia miyamotoi in the context of climate change.

Environ Microbiol

October 2024

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

The impact of Borrelia miyamotoi on human health, facilitated by the expanding geographical distribution and increasing population of Ixodes ticks, remains obscure in the context of global climate change. We employed multiple models to evaluate the effect of global climate change on the risk of B. miyamotoi worldwide across various scenarios.

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An accumulated mutation gained in mosquito cells enhances Zika virus virulence and fitness in mice.

J Virol

November 2024

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

Unlabelled: Zika virus (ZIKV) remains a significant public health threat worldwide. A number of adaptive mutations have accumulated within the genome of ZIKV during global transmission, some of which have been linked to specific phenotypes. ZIKV maintains an alternating cycle of replication between mosquitoes and vertebrate hosts, but the role of mosquito-specific adaptive mutations in ZIKV has not been well investigated.

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Intrinsic functional defects in B cells of patients with NFKB2 mutations.

Clin Exp Immunol

October 2024

Department of Immunology, School of Basic Medical Sciences, Fudan University, Shanghai, China.

Article Synopsis
  • * The study focused on five patients with specific NFKB2 mutations, demonstrating that those with frameshift mutations had truncated proteins and significant immune system deficiencies, such as B-cell lymphopenia and hypogammaglobulinemia.
  • * Laboratory tests showed that naïve B cells from some patients had decreased survival and activation abilities, highlighting intrinsic defects in their B cells due to NFKB2 mutations, even though class switch recombination remained unaffected.
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Introduction: Diarrhoeagenic Escherichia coli (DEC) persistently challenges public health in Africa, contributing substantially to the diarrhoeal disease burden. This systematic review and meta-analysis illuminate the distribution and antimicrobial resistance (AMR) patterns of DEC pathotypes across the continent.

Methods: The review selectively focused on pathotype-specific studies reporting prevalence and/or AMR of human-derived DEC pathotypes from African nations, excluding data from extra-intestinal, animal, and environmental sources and studies focused on drug and mechanism experiments.

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The SARS-unique domain (SUD) of SARS-CoV-2 nsp3 protein inhibits the antiviral immune responses through the NF-κB pathway.

J Med Virol

October 2024

Shenzhen Key Laboratory for Systems Medicine in Inflammatory Diseases, School of Medicine, Shenzhen Campus of Sun Yat-Sen University, Sun Yat-Sen University, Shenzhen, Guangdong, China.

Nuclear factor κB (NF-κB) plays a crucial role in various cellular processes, including inflammatory and immune responses. Its activation is tightly regulated by the IKK (IκB kinase) complex. Upon severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection, the virus is initially recognized by the innate immune system and typically activates the NF-κB pathway, leading to a severe inflammatory response.

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Advanced Palladium Nanosheet-Enhanced Phototherapy for Treating Wound Infection Caused by Multidrug-Resistant Bacteria.

Small

October 2024

State Key Laboratory of Pathogen and Biosecurity, Academy of Military Medical Sciences, Beijing, 100071, China.

With the increasing spread of multidrug-resistant (MDR) bacteria worldwide, it is needed to develop antibiotics-alternative strategies for the treatment of bacterial infections. This work develops a multifunctional single-component palladium nanosheet (PdNS) with broad-spectrum and highly effective bactericidal activity against MDR bacteria. PdNS exerts its endogenous nanoknife (mechanical cutting) effect and peroxidase-like activity independent of light.

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ELISA kits that detect antibodies to the non-structural protein (NSP) of the foot-and-mouth disease virus (FMDV), commonly referred to as NSP-ELISA, can distinguish between vaccinated and naturally infected animals. They can play an essential role in demonstrating 'proof-of-freedom' during the control of FMD. Although various NSP-ELISA kits are available in Thailand, information regarding their performance is lacking.

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Disease trajectories before dementia: evidence from a large-scale community-based prospective study.

Br J Psychiatry

December 2024

State Key Laboratory of Genetic Engineering, Human Phenome Institute, Zhangjiang Fudan International Innovation Center, Fudan University, Shanghai, China.

Article Synopsis
  • Systemic changes in various diseases can affect the development of dementia, but the exact timing between these diseases and dementia onset is unclear.
  • * A study using data from the UK Biobank aimed to map out the disease trajectories leading to dementia, providing insights for risk management and prevention strategies.
  • * The findings revealed specific disease clusters, particularly circulatory, metabolic, and respiratory diseases, that appeared 5-15 years before dementia, with variations in trajectories based on gender, age, and genetic factors.
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Modern agriculture and One Health.

Infect Dis Poverty

October 2024

Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100193, China.

Article Synopsis
  • Modern agriculture has significantly improved global food security and human health, but it also faces challenges like ecosystem degradation and increasing disease risks.
  • The commentary discusses these challenges through the One Health perspective, highlighting issues such as zoonotic diseases and antimicrobial resistance linked to intensive agricultural practices.
  • It emphasizes the need for adopting good agricultural practices supported by technology and education to achieve sustainable development across all sectors within the agrifood system.
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Lineage-specific pathogenicity, immune evasion, and virological features of SARS-CoV-2 BA.2.86/JN.1 and EG.5.1/HK.3.

Nat Commun

October 2024

State Key Laboratory of Emerging Infectious Diseases, Department of Microbiology, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Pokfulam, Hong Kong Special Administrative Region, China.

Article Synopsis
  • SARS-CoV-2 variant JN.1, featuring a mutation L455S, has surpassed earlier variants, becoming the dominant strain due to its higher infectivity compared to BA.2.86.
  • The increased infectivity of JN.1 is linked to improved entry efficiency and spike protein cleavage, aided by the L455S mutation altering how the spike protein binds to ACE2 receptors.
  • Research also evaluates the distinct virological traits between JN.1 and other Omicron sublineages, enhancing our understanding of their transmissibility and immune response behaviors.
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Preclinical evaluation and pilot clinical study of [Ga]Ga-NOTA-H006 for non-invasive PET imaging of 5T4 oncofetal antigen.

Eur J Nucl Med Mol Imaging

October 2024

Institute of Radiation Medicine, Fudan University, Xietu Road 2094, Shanghai, 200032, China.

Purpose: Trophoblast glycoprotein, the so-called 5T4, is an oncofetal antigen expressed in many different cancers. However, no 5T4-specific radioligand is employed in the clinic for non-invasive diagnosis. Thus, the aim of the current study was to develop a PET radiotracer for imaging 5T4 expression in preclinical and clinical stages.

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Biosecurity Assessments for Emerging Transdisciplinary Biotechnologies: Revisiting Biodefense in an Age of Synthetic Biology.

Appl Biosaf

September 2024

Board on Life Sciences, National Academies of Sciences, Engineering, and Medicine, Washington, DC, USA.

Introduction: Rapid advances in biotechnologies and transdisciplinary research are enhancing the ability to perform full-scale engineering of biology, contributing to worldwide efforts to create bioengineered plants, medicines, and commodities, which promise sustainability and innovative properties.

Objective: This rapidly evolving biotechnology landscape is prompting focused scrutiny on biosecurity frameworks in place to mitigate harmful exploitation of biotechnology by state and non-state actors. Concerns about biosafety and biosecurity of engineering biology research have existed for decades as views about how advances in this and associated fields might provide new capabilities to malicious actors.

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Genetic and clinical correlates of two neuroanatomical AI dimensions in the Alzheimer's disease continuum.

Transl Psychiatry

October 2024

Artificial Intelligence in Biomedical Imaging Laboratory (AIBIL), Center for AI and Data Science for Integrated Diagnostics (AI2D), Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.

Article Synopsis
  • Alzheimer's disease (AD) exhibits varied brain atrophy patterns, identified through a semi-supervised learning technique (Surreal-GAN) that distinguishes between "diffuse-AD" (widespread atrophy) and "MTL-AD" (focal atrophy in the medial temporal lobe) dimensions in patients with mild cognitive impairment (MCI) and AD.
  • Only the "MTL-AD" dimension was linked to known AD genetic risk factors like APOE ε4, and both dimensions were later detected in asymptomatic individuals, revealing their association with different genetic and pathological mechanisms.
  • Aside from brain-related genes, up to 77 additional genes were identified in various organs, pointing to broader
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