Articles tagged with Viruses
Researchers have uncovered a key reason why HIV remains difficult to cure, revealing that subtle variations in the Rev-RRE axis influence viral replication and latency reactivation. Understanding this regulatory system could help develop strategies to flush out the dormant virus and eliminate it for good.
Researchers found that an inexpensive HIV drug can improve vision in patients with diabetic macular edema (DME) more effectively and at a lower cost than existing treatments. The drug, lamivudine, is taken orally and may represent a game-changing option for millions of patients worldwide.
A recent study found that Metagenomic next-generation sequencing (mNGS) can detect pathogens in 86% of cases, outperforming conventional microbiological tests which identified pathogens in only 67% of cases. mNGS guides treatment decisions and improves patient outcomes by detecting rare/atypical pathogens.
Infections from respiratory syncytial virus (RSV) in children requiring primary care led to significant societal economic costs. The study found that the main sources of costs were repeated visits to primary care physicians and parents missing work to care for their sick children, with higher costs for infants under 1 year old.
A new method called MagIC cryo-EM dramatically improves imaging capabilities by reducing sample loss, enabling the visualization of rare proteins and viruses. The technology also addresses the challenge of handling small proteins, allowing for more accurate structural analysis.
Scientists from the University of Tokyo have created a filter that can capture nanoparticles such as viruses while maintaining air flow, resulting in improved user comfort. The filter uses nanosheets with porphyrin molecules and is capable of achieving a particle filtration efficiency of 96%, exceeding N95 mask requirements.
The international conference will focus on translating phage research into clinical reality, exploring key sessions and major speakers. Companies from various sectors are attending the event, highlighting the growing interest in phage therapy.
Scientists have created a comprehensive bat organoid model to study zoonotic viruses, enabling early detection and drug testing for future outbreaks. The platform, comprising diverse bat species and organs, has led to breakthroughs in understanding virus behavior, isolation, and treatment.
A study published in The Lancet Healthy Longevity reveals that older adults in sub-Saharan Africa are at risk of HIV infection, particularly those who have experienced social stigma and lack access to education. Interventions such as repeated testing, PrEP, and awareness campaigns can help reduce infections among the elderly.
Researchers from The University of Osaka developed a new technique using mass photometry to detect and quantify components of rAAV particles. This method can distinguish between full and empty particles, streamlining gene therapy manufacturing and improving clinical effectiveness.
Viruses that infect and kill toxic algal blooms can cause the release of high levels of toxin microcystin-LR into water, posing a significant risk to human health and ecosystems. The finding highlights the need for better understanding of these interactions to inform forecasting and mitigation strategies for harmful algal blooms.
The latest focus issue of Molecular Plant-Microbe Interactions explores the molecular, cellular, and genomic details of cereal crop diseases, highlighting key research on plant-pathogen interactions. Groundbreaking work has advanced the field, offering new insights into disease resistance and management strategies.
A novel vaccine platform uses genetically fused antigen to albumin, which is actively transported across the mucosal barrier by FcRn receptor. This results in protective systemic and mucosal antibody responses against SARS-CoV-2 and influenza A.
Scientists discovered that certain bacteria can trigger their own cell death as a defense mechanism against viruses, utilizing components of the bacterial immune system. This phenomenon could be exploited to develop novel antimicrobial treatments and fight drug-resistant infections.
Researchers at the University of Texas Health Science Center at San Antonio have discovered a crucial pathway to preserve thymic function as we age. The study found that increasing fibroblast growth factor FGF21 can help maintain thymus size and function, allowing for a broader range of T-cells to develop.
Researchers discovered that herpesvirus protein kinases mimic human cyclin-dependent kinases, regulating viral infection and latency. Phosphorylation of the viral enzyme contributes to its survival and persistence, while phosphorylation downregulates its activity, allowing for balance between host survival and viral persistence.
Researchers found that high-grade pre-cancer lesions triggered stronger immune responses and showed higher levels of immune-related markers PD-L1 and FOXP3. These findings suggest that HPV may begin avoiding the immune system early in infection, allowing infected cells to grow and potentially leading to cancer.
The VAST project seeks to understand the normal human virome, the vast ecosystem of viruses living in and on humans. By analyzing tens of thousands of samples from diverse populations, researchers aim to identify how a healthy virome shifts with disease or environmental factors.
Researchers trained a machine learning algorithm to identify over 30 viable treatments for diseases caused by bat-borne Nipah and Hendra henipaviruses. The study used Rhodium software to virtually screen compounds based on the protein structure of the measles virus.
A new machine learning model accurately predicts the fitness of AAV capsids based on their amino acid sequence, enabling more efficient and cost-effective gene therapies. The model's robustness and generalizability have been demonstrated through tests on independent datasets, offering a promising tool for capsid engineering.
Researchers at University of Jyväskylä have isolated a new giant virus, Jyvaskylavirus, for the first time in Finland. The discovery reveals that giant viruses are more common in northern regions than previously thought, with implications for understanding microbial populations and ecosystems.
Researchers have identified a combination of drugs that prevents enteroviruses from replicating, which could lead to an effective treatment for global health problem. The combination includes pleconaril, AG7404, and mindeudesivir, which shows great potential for finding broad-spectrum treatment methods against enteroviruses.
Researchers found Oropouche virus is massively under-diagnosed in Latin America, with over 1 in 10 people experiencing a prior infection. Climatic conditions, including rain and temperature, significantly influence the virus's spread, posing risks to unborn babies.
The Phytovirome Focus Issue addresses fundamental and translational aspects of phytovirome science, highlighting the transformative role of high-throughput sequencing technologies. Researchers discovered a remarkable diversity of viruses in plants, with complex communities interacting with hosts in both pathogenic and beneficial ways.
Researchers have made significant discoveries about the role of GP38 in viral infections and pathogenesis, highlighting its potential as a target for vaccines and medical countermeasures. Non-neutralizing GP38-specific antibodies have shown protective efficacy against lethal challenge, reducing circulating GP38 and vascular leak.
Researchers from the University of Jyväskylä have unveiled an innovative, label-free ratiometric fluorosensor for selective and sensitive detection of enteroviral RNA. The sensor outperforms traditional methods in terms of sensitivity and selectivity.
Researchers at the University of Surrey warn that mpox's sustained human-to-human transmission poses a significant risk to global health. The virus can cause a painful rash, fever, and swollen glands, and has the potential to spread among children, who are at greater risk of serious illness.
The model analyzes host characteristics and virus genetics to predict potential reservoirs for orthopoxviruses, including smallpox and mpox. It identified Southeast Asia, equatorial Africa, and the Amazon as hotspots, overlapping with areas of low vaccination rates.
A new rapid diagnostic test can accurately identify pregnant women with high levels of the hepatitis B virus, allowing for early detection and intervention. This breakthrough test could have a significant impact on hepatitis B management in low- and middle-income countries, reducing the spread of the infection.
Researchers from La Jolla Institute for Immunology and UC San Diego discover Zika virus blocks dendritic cells' ability to alert T cells, while dengue virus stimulates pro-inflammatory cytokines, leading to a stronger but uncontrolled immune response. Understanding these differences is key to developing life-saving vaccines.
A new study found that recombinant adeno-associated virus (rAAV) capsids contain single-stranded DNA impurities derived from plasmid and host cell DNA. The researchers suggest that the adverse effects of these impurities may differ from those of double-stranded DNA, highlighting the need for further evaluation.
A new USF study identifies several viruses associated with Karenia brevis, the single-celled organism causing red tide. The finding marks an initial step toward exploring viruses as biocontrol agents for red tide blooms.
A recent study identifies 11 natural compounds that can inhibit the SARS-CoV-2 spike protein, including caffeine, which exhibits high binding stability and excellent solubility. The discovery highlights the potential of natural products in combating COVID-19 and demonstrates the versatility of widely known compounds like caffeine.
Researchers at Martin-Luther-Universität Halle-Wittenberg have developed a new avenue to combat the Cucumber mosaic virus by directing the plant's natural defences. The RNA-based active agents have shown high efficacy in laboratory experiments, protecting 80-100% of treated plants from infection.
Researchers at Penn State discovered that Zika virus builds tiny tunnels called tunneling nanotubes to transport material needed to infect nearby cells, including in placental cells. This allows the virus to cross the placental barrier without raising alarm in the immune system.
A Phase 1 clinical trial is enrolling up to 55 healthy adults to test the safety and immunogenicity of a candidate Lassa vaccine. The trial aims to prevent Lassa fever, a viral hemorrhagic disease that can cause permanent hearing loss.
Oropouche virus has been reported in travellers from Canada and the US who visited Bolivia, Brazil, Peru, and Cuba, with symptoms including fever, chills, headache, and muscle aches. The risk of miscarriage and microcephaly is high for pregnant individuals, prompting cautionary measures.
A recent study identified 26 viral species from ticks in Hulunbuir, including four novel viruses and 11 new strains of human-pathogenic viruses. The study highlights the potential spillover risk of these viruses and underscores the need for One Health strategies to monitor emerging tick-borne viruses.
The European Centre for Disease Prevention and Control reports a significant increase in measles cases across EU/EEA countries, with eight out of ten unvaccinated individuals contracting the disease. Vaccination levels fall short of the 95% target, leaving vulnerable populations susceptible to measles.
A lack of access to dentists during the COVID-19 pandemic led to a surge in hospital visits for children's painful dental issues. Research found a 62% increase in emergency department visits from Medicaid-insured kids, with young children being seen twice as often.
Research finds that certain viral antibodies and genetic risk factors can increase MS risk, with elevated antibody levels combined with a specific gene variant associated with strong increased risk. The study also identifies potential biomarkers for early diagnosis.
A study published in Human Gene Therapy found that over half of individuals with Niemann-Pick disease type C1 lacked neutralizing antibodies against AAV2 and AAV9. This absence of antibodies may impact the effectiveness of gene therapy treatments for this rare disorder.
A survey reveals that most people are unaware of HPV's impact on cancer risk and its spread. The human papillomavirus (HPV) is more common among men than women, and the virus is associated with rising rates of oropharyngeal cancers, which can take years to develop after initial infection.
Researchers developed a simple test that detects antibodies against four dengue virus serotypes and zika virus. The test achieved high sensitivity (87.8%) and specificity (91.4%), indicating its potential to monitor specific antibodies produced in response to exposure to the viruses.
Enodia Therapeutics, launched by Institut Pasteur and Argobio, leverages AI to develop selective inhibitors of the Sec61/translocon molecular complex for treating cancer, inflammatory diseases, and viral infections. The company's breakthrough technology has earned a prestigious Golden Ticket Award from Pfizer.
Scientists discovered a protective variant of the HAQ-STING gene that prevents COPA Syndrome. This finding opens the door to a new gene therapy for the condition, which currently has no cure.
Lyme disease is a bacterial infection transmitted by ticks, posing an increasing threat in the U.S. Montana State University's Patrick Secor will study adaptations in Borrelia burgdorferi to illuminate how it circumvents its host's immune system. The goal is to discover new vaccine antigens and develop more effective treatments.
A new study led by La Jolla Institute for Immunology scientists found that children who experience multiple dengue virus infections develop protective T cells, which help fight the virus. These T cells appear to be key to dengue virus immunity and may inform the development of a vaccine that prompts a similar response.
The American College of Chest Physicians (CHEST) has developed an educational program and formal certification exam for nurse practitioners and physician assistants/associates in critical care. The program validates clinical expertise and demonstrates professional acumen, aiming to improve patient care.
Researchers have identified a new variant, clade 1b, of the mpox virus that has become more infectious and is spreading rapidly across borders. The study found that this variant primarily spreads through heterosexual contact in densely populated areas, with an estimated fatality rate of 3.4%.
A synthetic retinoic acid-inducible gene I (RIG-I) agonist RNA has been shown to induce innate immune signaling and death of hepatocellular carcinoma cells in vitro. The addition of recombinant interferon-b potentiated this cell death, suggesting a potential new mechanism for treating patients with liver cancer.
Researchers found that Copia's capsid plays a crucial role in controlling structural synaptic plasticity at the Drosophila neuromuscular junction. The study suggests that this parasitic genome element influences neuronal communication and behavior.
A study on Nigerian healthcare workers found that excessive iron levels increased the risk of catching COVID-19, while moderate deficiency didn't offer protection. The research highlights an evolutionary tradeoff between iron's benefits for immune function and its potential risk to pathogens.
Researchers at the Institut Pasteur have gained a better understanding of how mpox variants become resistant to tecovirimat. They found that the drug works by binding two phospholipases together, preventing viral particles from spreading. This knowledge will help develop new antiviral treatments effective across all mpox strains.
A new retrospective study found that nearly half of patients with fever of unknown origin in sub-Saharan Africa had a detectable pathogen, including bacterial strains and hemorrhagic fever viruses. The study highlights the need for strengthened laboratory capacity to improve diagnosis and treatment.
Scientists have developed a new technique called BioSonic spectroscopy, which uses short pulses of light to observe the nanoscale motion of virus particles. This allows researchers to capture the unique signature or 'sound' of each biological system, providing a new way to understand biology and potentially aiding in disease prevention.
Researchers discovered immune cells that can recognise influenza (flu) viruses even as they mutate, providing a potential solution to the annual updates of flu vaccines. The study found that certain T cells, which play a critical role in fighting infections, can detect multiple flu strains, even those that have evolved over a century.
Researchers found positive correlations in susceptibility to viruses across diverse fruit fly species, suggesting a general pattern of resistance. The study's findings have implications for understanding viral evolution and predicting pandemics.
The Human Virome Characterization Center at UCLA will investigate the diversity of viruses naturally inhabiting the human body along the oral-gut-brain axis. The center's discovery team will characterize virome richness, diversity, and structure in healthy individuals across different age groups and ethnic backgrounds.
The dengue virus uses its envelope protein to capture human plasmin, enhancing the permeability of the mosquito midgut. This interaction is crucial for viral infection, and understanding it could lead to innovative approaches to tackle vector-borne viruses.