Articles tagged with Viral Infections
Scientists have engineered enzymes to manufacture molnupiravir, resulting in a shorter and higher-yielding synthesis. The new method reduces the risk of hospitalization and death from COVID-19 for newly diagnosed patients, showing promise as an antiviral treatment.
Researchers used machine learning and genomics to identify molecular markers of resistance to sugarcane yellow leaf disease in over 97 sugarcane genotypes. The study found that energy cane varieties with higher fiber content are more resistant to the disease, paving the way for commercial launches.
Researchers found that hepatitis C treatment reduces the activity of proteins involved in cirrhosis, potentially indicating an early sign of liver recovery. The study suggests a possible pathway toward healing scarred liver tissue after virus elimination.
Researchers at Texas A&M University have developed a wearable, self-sustaining fever detector that uses thermal energy harvesting to power its electronic device. The device can generate an unprecedented 87 millivolts per degree Celsius, making it large enough to operate typical wearable electronics.
A recent study published in eLife reveals that the shape of the respiratory syncytial virus (RSV) plays a crucial role in determining infection outcomes. Researchers found that RSV viruses change from long, rod-shaped particles to more rounded ones during infection, which affects the activation of complement proteins by the immune system.
Researchers at Osaka University developed a vaccine that offers cross-protection against SARS coronaviruses by targeting the conserved core region of the spike protein receptor-binding domain. This approach has the potential to protect against future outbreaks, including those caused by novel viruses.
A new study from the University of Southampton demonstrates a safe method to clean and reuse facemask respirators using advanced low-temperature plasma technology. This technique can remove 99.99% of coronavirus while maintaining filter performance, reducing plastic waste by approximately 70%.
Scientists have developed a technique to sequence individual malaria parasites' genomes, allowing for the detection of new mutations. These mutations are often targeting a gene family controlling transcription in malaria, suggesting potential avenues for developing more effective treatments and vaccines.
Research at Florida Atlantic University found that green sea turtles in polluted environments have impaired immune systems, leading to increased disease susceptibility. The study suggests a positive feedback loop where pollution compromises immunity, making turtles more prone to Green Turtle Fibropapillomatosis.
Researchers discovered that RSV's NS1 protein alters immune gene expression to evade the immune response. The study provides crucial data for targeting NS1 in drug or vaccine development and may shed light on the link between RSV and asthma.
A Texas A&M study found that over half of American adults resumed risky social and travel activities before vaccines were widely available. The survey also revealed that younger individuals, those with lower socioeconomic status, and fiscally conservative respondents were more likely to engage in such behaviors.
A new study reveals hepatitis B virus (HBV) has been infecting humans for millennia, tracing its evolution from prehistory to the present. The research highlights HBV's dispersal routes and shifts in viral diversity mirroring human migrations and demographic events.
A pre-clinical study by University of Illinois Chicago researchers shows that a drug targeting specific immune pathways can prevent lung damage and death in mice infected with the SARS-CoV-2 virus. The study suggests targeted treatments may be more suitable for COVID-19 patients than broad immune suppressants.
Dr. Gack's research focuses on identifying broad-spectrum antiviral drug targets and has implications for developing effective treatments against COVID-19 and other viral threats. The $5.6 million NIH grant will support her investigation into targeting human enzymes essential for virus replication.
A new study reveals that high levels of polyunsaturated fatty acids in liver cells are associated with resistance to hepatitis C virus infection. Lipid peroxidation occurs on PUFA-enriched membranes where viral replication machinery is anchored, ultimately shutting off its ability to replicate the viral genome.
Researchers have identified a new prophage-mediated defence system in Salmonella Typhimurium ST313 called BstA, which efficiently suppresses phage attacks. This discovery opens up a new avenue of research and could potentially lead to the development of new biotechnologies.
Researchers discovered a cheap and naturally occurring chemical compound that can prevent or reverse the effects of the deformed wing virus in bees. Bees fed with this compound before becoming infected were nine times more likely to survive the virus after five days.
Researchers found that viral, fungal, or bacterial infections impact blood vessel repair in the brain after traumatic brain injury (TBI) and cerebrovascular injury. Infected animals took longer to repair damaged blood vessels, leading to permanent cognitive dysfunction and brain damage.
Researchers at the University of Illinois found that antibodies from people infected with the original COVID-19 strain do not effectively bind to newer variants. This has implications for vaccine efficacy and the design of possible boosters.
A study published in SLEEP reveals an association between early lower respiratory tract infections and the development of obstructive sleep apnea in children. Children who had a history of severe RSV bronchiolitis during early infancy were found to have a higher risk of developing OSA.
A new study by UCLA researchers reveals that respiratory emissions produced during labor and vaginal delivery can increase the risk of respiratory disease transmission. The findings support the recommendation of providing full PPE, including N95 masks, to healthcare workers in labor and delivery units to prevent COVID-19 transmission.
CD8+ T cell priming in the spleen generates long-lived, stem-like memory T cells with enhanced ability to differentiate into T effector cells. Spleen-primed T cells have superior capacity to respond to rechallenge infection and expand into infection-fighting T effector cells.
Researchers successfully simulated the capsid disassembly step of hepatitis B viral infection at an unprecedented atomic level, identifying specific regions of the capsid protein that contribute to breakage. This high-accuracy simulation can help design drugs to interrupt these processes and prevent chronic infection.
Researchers at Texas A&M University designed a new framework to create the most optimal oxygen concentrator, capable of producing high-purity oxygen and adapting to changing patient needs. The LiLSX-based system outperformed other zeolites in simulation tests.
Researchers at the University of Helsinki discovered a potential contributing mechanism to kidney dysfunction in acute hantavirus infection by investigating the body's response to the virus. Elevated levels of free light chains were found to be associated with kidney problems and may play a role in other infectious diseases.
A study published in the Journal of Clinical Investigation found that infection triggers the expression of a protein called IL-33, leading to overgrowth of air spaces and increased mucus production. The researchers suggest that blocking this process could prevent chronic lung damage caused by viral infections.
Scientists have developed stable peptide mimics called peptoids to treat viruses and prevent infections. Peptoids, such as those tested against SARS-CoV-2 and HSV-1, could one day cure or prevent many kinds of infections, including COVID-19.
A recent study published in PLoS One found that young adult patients with COVID-19 are at risk of severe disease and readmission, especially those with comorbidities. The study also identified over 50 lingering symptoms, including fatigue, headache, and loss of smell, which can last weeks to months after initial recovery.
Researchers at WashU Medicine have identified two antibodies that protect animals from disease caused by alphaviruses, which could form the basis of treatments or serve as a template for a universal vaccine. The antibodies worked against all tested alphaviruses and prevented arthritis and brain infections in animals.
A physics model simulates hand-washing to estimate the time scales on which particles like viruses and bacteria are removed from hands. The study finds that vigorous movement for about 20 seconds is necessary to dislodge these particles, consistent with traditional guidelines.
A new strategy for curing HIV targets latent viruses by blocking and excising the virus, offering hope for patients to be taken off daily treatments. The HOPE Collaboratory's approach uses genome editing technology to destroy latent HIV.
Research from the University of South Florida found that individuals who wrote about their relationship troubles from a neutral observer's point of view had less conflict and aggression with their partner. The study surveyed 716 American adults and asked them to fill out a baseline assessment and then complete a brief writing exercise.
A study published in The EMBO Journal identified several host proteins that interact with the Ebola virus protein VP30, inhibiting viral transcription and replication. These findings suggest a novel target for preventing Ebola virus infection, providing potential new therapeutic strategies.
Researchers have developed nanobodies that target the cytomegalovirus (HCMV), a virus that can cause life-threatening complications in immunocompromised patients. These nanobodies bind to the US28 protein and interrupt signals that keep the virus dormant, enabling the immune system to detect and destroy the virus.
An interdisciplinary research team at TUM has developed nano-capsules tailored from genetic material using the DNA origami method to engulf and neutralize viruses. The strategy has been tested against hepatitis and adeno-associated viruses in cell cultures and may prove successful against corona viruses.
Experts urge UK government to prioritize vaccination over mass infection, citing unacceptable risks to vulnerable populations. The strategy is deemed 'unethical and unscientific' by Dr Deepti Gurdasani and colleagues.
A Skoltech team developed a model to assess infection risks for supermarket customers. The composite model incorporates social forces and retail space layout, suggesting that social distancing is the primary factor in reducing infection rates. Filling stores to capacity has little economic sense during the pandemic.
Researchers discovered that viral expansions can transition from 'pulled' to 'pushed', where the expansion is driven by viruses arising behind the front, retaining genetic diversity for longer. This finding suggests that viral populations in infected organisms may be more adaptable than previously thought.
A team of researchers has identified a mechanism explaining how Tpex cells can maintain their function for long periods, potentially improving the success rate of immunotherapy. The discovery was made by identifying increased amounts of an immunosuppressive molecule, which reduces activity of mTOR and dampens the immune response.
Researchers have identified DAF as a receptor that increases damage to the lungs in mice infected with influenza A virus. The study highlights an immune evasion strategy by the virus and stresses the importance of a balanced immune response to viral infections.
Researchers discovered that laminins, specifically laminin γ1, play a crucial role in mediating cell attachment and penetration for oncolytic viruses like H-1PV. This finding may lead to the development of more efficient clinical trials with reduced costs and approval times.
Researchers from the Institute of Physical Chemistry found that phage potency is affected by container material, leading to reduced efficacy. The study highlights the importance of using specific containers with controlled surface properties to maintain phage concentration.
Researchers identified unique antibody responses that correlate with protection against dengue fever, highlighting the need for vaccines targeting specific serotypes. The study provides crucial information for developing effective dengue vaccines.
Researchers at Monash University have discovered how Ebola virus evades the immune system by targeting the STAT3 protein. The virus uses a protein called VP24 to disable STAT3's messenger function, which is critical for regulating host immune and inflammatory responses.
Researchers have identified a novel virulence trait of Streptococcus pneumoniae that increases the severity of S. pneumoniae superinfection following flu. The surface protein PspA, previously known to have several other virulence mechanisms, now functions as an adhesin to dying lung epithelial cells. This finding provides further expla...
Researchers at Texas Biomedical Research Institute are receiving NIH funding to investigate the precise mechanisms of Ebola virus infection, including its ability to hijack immune cells called macrophages. The study aims to understand how the virus spreads in the body and potentially develops targeted treatments.
A new study reveals that a specific antibody molecule, missing fucose, can indicate when dengue virus infection will become deadly. Patients with severe disease have unusually high levels of these antibodies, which bind too strongly to white blood cells, leading to inflammation and platelet destruction.
A team of Colorado State University scientists detected Zika virus RNA in free-ranging African bats, shedding light on the ecology of flaviviruses and potential natural transmission routes. The findings suggest that bats may be incidental hosts of Zika virus infection, rather than amplifying hosts or reservoir hosts.
Researchers have developed an antibody-based therapy to treat Crimean-Congo hemorrhagic fever virus, a highly lethal tick-borne disease. The therapy, called DVD-121-801, overcomes infection in mice with just one dose administered after virus exposure.
A new model predicts that rising temperatures in the UK will increase the risk of West Nile virus outbreaks, which are spread by mosquitoes with no vaccine available. The risk is currently low but expected to rise as temperatures increase.
Researchers from University of British Columbia and Strategic Salmon Health Initiative found Piscine orthoreovirus (PRV) originating from Atlantic salmon farms spreading to wild Pacific salmon through open-net farming. The study suggests a link between PRV transmission and increased disease severity in Chinook salmon.
Researchers found that T cells can make mistakes when identifying healthy cells from infected ones, even when binding tightly to antigens. This discovery may lead to new treatments for autoimmune diseases and improve cancer therapies.
Researchers discovered a novel molecular mechanism by which HCV interferes with the host's immune system, leading to chronic infection. The study found that HCV core protein is degraded via SPP and MHC class I proteins, impairing proper immune response and allowing infection to become chronic.
Researchers at the University of Vermont have discovered new biomarkers for predicting clinical and immune responses to dengue virus infection. These findings could aid in the development of more effective vaccines against all four dengue strains, a crucial step in combating this deadly disease.
Researchers have developed a pioneering plant-based technology to study the virus maturation process, revealing large structural rearrangements that enable chemical reactions necessary for infection. The study provides valuable insights into the dynamics of an essential part of a virus infection cycle.
Researchers have demonstrated that HERV activation can impair brain development, leading to altered cortical neuron function and structure. This finding has important clinical implications, particularly in the context of neurodegenerative diseases.
A new study published in Nature Medicine proposes that microbes exist as networks, driving frequent flare-ups in patients with bronchiectasis. The research team analyzed over 400 respiratory samples and found negative interactions between microbes contributing to infection severity.
Researchers found that hygiene measures such as heat, soap, and alcohol treatment can effectively eliminate new coronavirus variants. The variants have similar surface stability to the wild type virus but can be rendered harmless by these methods.
A dengue virus vaccine candidate has produced a protective immune response in infected mice, offering a promising alternative to existing vaccines. The UQ-developed vaccine uses an Australian insect virus and can be administered via a microarray patch for easy, needle-free delivery.
Researchers have improved a method to prevent human parainfluenza virus attachment to cells, leading to 30% to 40% of childhood respiratory illnesses. The new peptide is more effective and persistent in rodent models.