Articles tagged with Bacterial Infections
A new study has found that metal particles from brake pads can cause inflammation and reduce the ability of immune cells to kill bacteria, similarly to diesel exhaust. Brake dust is estimated to contribute up to 20% of total PM2.5 traffic pollution.
A team of researchers used atomic force microscopy to study the dynamic assembly of antibodies against the self-molecule GM1. The autoantibodies form a hexameric ring structure on the membrane, serving as a landing place for complement proteins. This process is crucial in Guillain-Barr’ syndrome, an autoimmune disorder.
Researchers have found that deleting the BMAL1 clock gene makes immune cells more effective at fighting off pneumonia-causing bacteria. The study reveals that strengthening the actin skeleton of these cells is key to their increased effectiveness.
A recent study found that oral infections are not linked to increased risk of death or serious infection after stem cell transplantation. The researchers suggest that conservative dental treatment may be sufficient for patients with asymptomatic dental infections, and radical treatment is only necessary in specific cases.
Researchers have identified the structure of a lethal toxin produced by C. difficile bacteria, paving the way for new drugs to neutralize it. The finding uses cryo electron microscopy and X-ray crystallography to map out delivery and binding components of the toxin.
Researchers found that intravenous BCG vaccination significantly increased protection against TB in rhesus macaques. The study showed that IV BCG elicited strong, sustained T cell responses in the lungs, leading to a high degree of protection against infection and disease.
Researchers found that treatment with intranasal mupirocin and chlorhexidine wipes significantly reduced parentally acquired Staphylococcus aureus infections in NICU babies. The study suggests a simple strategy to reduce the spread of deadly bacteria in hospitals.
Researchers at Washington University School of Medicine found that T cells play a critical role in protecting against staph infections. The study suggests activating untapped immune cells and immunizing infants before birth to block toxin effects. This new approach shows promise for developing an effective staph vaccine.
A new study has identified key mutations that affect Factor H binding protein (FHbp) on the surface of the meningococcus bacterium, which could lead to improved vaccines. The findings have major implications for current meningococcal group B vaccines, Trumenba and Bexsero.
Researchers discovered that the human body uses a receptor to detect bacterial quorum sensing molecules, enabling it to react to differing stages of an infection. This allows the body to save energy by not reacting prematurely and prevents collateral damage caused by the immune system's response.
A host sensor called AhR helps the immune system respond to bacterial infections by detecting and adapting to quorum sensing signals. This allows for tailored defense mechanisms against highly resistant pathogens like Pseudomonas aeruginosa.
A new animal model has successfully treated latent tuberculosis (TB) using a three-month course of antibiotics, showing almost complete sterilization of bacteria. This breakthrough could lead to shorter treatment regimens and improved prevention of reactivation.
A recent study published in Respiratory Research found that vaping may have similar effects on harmful lung bacteria as smoking. Researchers compared the effects of cigarette smoke and e-cigarette vapor on four types of bacteria associated with smoking-related illnesses, including chronic obstructive pulmonary disease (COPD) and asthma.
A musical mnemonic based on a popular nursery rhyme can help young children learn and remember the proper hand hygiene technique, potentially reducing the spread of stomach bugs, coughs, and colds. The study found that the song lyric instructions led to a reduction in bacterial residue on children's hands after handwashing.
A team of scientists has modified an approved cancer drug to create a new antibiotic effective against multi-resistant bacteria, including MRSA. The new agent, PK150, targets unconventional structures within the bacteria and has shown promising results in mice, with no observed resistance development.
A study led by the University of Arizona College of Medicine-Phoenix found that elevated levels of IL-36y are associated with bacterial vaginosis. The researchers also discovered that infection with BV-associated bacteria induces IL-36y in a species-specific manner.
The NIH is providing renewed funding for the Antibacterial Resistance Leadership Group (ARLG) to conduct clinical research and develop novel strategies to combat antibiotic-resistant infections. The ARLG has established collaborations in 19 countries and conducted over 40 clinical studies involving over 20,000 volunteers.
Researchers found that vesicles isolated from four strains of Lactobacillus bacteria interfere with HIV infection, reducing the number of infected cells. The study suggests ways to reduce male-to-female HIV transmission.
Research team around Dr Thomas Böttcher studies phage-host interactions to understand the transition from latent to active states, with potential applications for developing alternative antibiotics. The team aims to uncover molecular signals controlling dormant phages and their impact on the human microbiome.
Researchers have found a way to stimulate skin cells to secrete naturally occurring antibiotics called Antimicrobial Peptides, which target and kill bacteria. By modulating caspase-8 levels in the skin, AMP release can be controlled to prevent infections in diabetics and patients with weakened immune systems.
Researchers have developed a genetic typing method for Pseudomonas putida, which enables the detection of its virulent strains. The study's findings highlight the bacterium's biotechnological value and its importance in understanding disease-causing pathogens.
Researchers developed a mathematical model to explore interactions between bacteria and drug-eluting medical devices. The model indicates that successful therapy depends on a balance between the drug's action and bacterial proliferation, influenced by coating properties and porosity.
New research shows that nerve cells in the gut regulate gut immunity, maintain homeostasis, and provide active protection against infection. Gut neurons activate pain-sensing neurons to release neurochemicals slowing M cell differentiation and boosting SFB microbes, which guard against Salmonella invasion.
Researchers created an artificial intelligence tool to identify neutrophils primed for NETosis, a process where white blood cells expel inflammatory DNA into circulation. The new technology allows scientists to measure NETosis in different diseases and test drugs that may inhibit or promote the process.
A study reveals that Group A Streptococcus produces a novel protein called S protein, which binds to red blood cells to evade the immune system. This mechanism increases bacterial virulence and decreases survival in infected mice.
Researchers at Newcastle University have found that layering Manuka honey between layers of surgical mesh acts as a natural antibiotic, inhibiting bacteria growth and preventing infection. The study showcases the potential benefits of infusing medical implants with honey, offering an alternative to antibiotics.
A new study from Aston University reveals that over 9 in 10 make-up products are contaminated with potentially life-threatening superbugs like E.coli and Staphylococci. Beauty blender products, particularly, are found to have high levels of harmful bacteria, highlighting the need for consumers to wash them regularly.
Researchers have found that disrupting normal microbial development in the intestine can lead to severe infections in newborns. Giving specific protective bacteria before infection may prevent deadly infections, suggesting a potential treatment for premature infants.
Osaka University researchers use electron cryomicroscopy to solve the structure of the bacterial flagellum's 'universal joint,' a crucial component in transmitting rotary power. This breakthrough has important implications for developing new antibiotics and biomimetic self-propelled nanomachines.
Researchers found that a specific toxin in Staphylococcus aureus prevents tolerance and maintains the immune system's vigilance. Early-life exposure to commensal bacteria like S. epidermidis leads to immune tolerance, while later exposure to pathogenic S. aureus results in a vigorous immune response.
Scientists have identified nearly thousand ISG15 sites on protein targets during bacterial infection, revealing a link between ISG15, cellular metabolism, and autophagy. This discovery may lead to novel antimicrobial drugs.
A new study published in Nature Microbiology has discovered that epigenetic chemical modifications play a crucial role in the survival and spread of C. difficile bacteria. The research found that inhibiting these modifications can reduce bacterial populations by up to 100 times, paving the way for potential treatments for this deadly i...
Researchers found that normal gut bacteria boost norovirus severity in the lower small intestine but block it in the upper small intestine. The study suggests manipulating the gut environment through bile acids or microbiome could stimulate the immune system to shut down norovirus infection.
A Michigan State University study finds that antibiotic-resistant salmonella strains are increasing, leading to longer hospital stays and worse symptoms. The study also reveals regional differences in the types of salmonella infections, with rural areas affected by enteritis infections.
Device-associated infections show higher resistance rates for antibiotic-resistant bacteria compared to surgical site infections, highlighting the need for improved infection prevention and antibiotic stewardship in hospitals.
Researchers have discovered that Pseudomonas aeruginosa bacteria send out warning signals when attacked by antibiotics or viruses, allowing them to survive and potentially evade treatment. This communication mechanism may hold the key to developing new treatments and improving existing ones.
Researchers found that MRSA on people and pets can spread through skin-to-skin contact, contaminated surfaces, and environmental factors. Frequent handwashing and high cleanliness scores reduce the risk of staph transmission.
Research shows a 76% reduction in dengue transmission in Indonesia and similar declines in Brazil, highlighting the potential of Wolbachia-infected mosquitoes in reducing mosquito-borne diseases. The approach has several advantages over conventional methods, including minimal toxicity and cost-effectiveness.
Researchers identify virulence factors in Aeromonas hydrophila infection, showing microbes modulate infection progress and strain interactions. The study's findings aim to develop therapies for lethal necrotizing fasciitis caused by the bacterium.
Acinetobacter baumannii is a highly resistant bacteria that causes persistent skin and soft tissue infections. Researchers are investigating the use of selenium as an antimicrobial agent, which has shown promise in inhibiting bacterial virulence.
The BacFITBase database identifies key genes for host cell invasion and infection, aiding in the development of new antibiotics. The database contains over 90,000 entries with information on specific pathogenic bacterial genes and their contribution to infectious conditions in five different host species.
A UC Davis study found that Lactobacillus plantarum bacteria can rapidly repair a damaged gut lining, known as leaky gut, within five hours of exposure. The bacteria activated PPARα signaling and revived mitochondrial flow, repairing the gut barrier and providing hope for effective treatment of HIV-related damage.
Researchers propose a link between microbial infections and various cancers, centered around the mucin protein MUC1. The protein's dual role in combating bacterial attacks and triggering inflammation processes may contribute to malignancy.
Researchers identified the molecular signals that activate MAIT cells during Salmonella or Legionella infections. They found that IL-23 is key to expanding MAIT cell numbers and attacking the infection.
A study in eLife reveals how respiratory bugs in cystic fibrosis patients interact, influencing disease progression and survival. The research found that one bacterium enhances the movement of another, while others significantly increase its mobility.
A study found that probiotics can cause bloodstream infections in ICU patients, with 1.1% of cases linked to Lactobacillus bacteria. Genetic analysis revealed a mutation that made the bacteria resistant to antibiotics, highlighting the need for caution when using probiotics in critically ill patients.
A newly developed experimental vaccine has demonstrated over 80% effectiveness in protecting mice from succumbing to Staphylococcus aureus infection. The vaccine targets specific proteins found on the bacteria and has shown promise in preventing biofilm formation, a major cause of hospital-acquired infections.
A new study reveals that genetic variations in a single species of bacteria can amplify infection, making it more dangerous than either strain alone. The researchers discovered that when the two strains work together, one produces a toxin that breaks down muscle tissue and enables the other to infect organs.
Scientists discovered that blood stem cells acquire energy from bone marrow support cells in response to salmonella infection, enabling them to produce millions of bacteria-fighting white blood cells. This discovery could lead to new approaches to treating people with salmonella and other bacterial illnesses.
A new study investigates the dynamics among strains of Aeromonas hydrophila, which can lead to life-threatening infections. Researchers hope that understanding these interactions will enable the development of new therapeutic interventions.
A new study found that copper hospital beds in ICUs harbor 95% fewer bacteria than traditional beds, maintaining low-risk levels throughout patient stays. This could lead to improved patient outcomes, lives saved, and healthcare cost savings.
Scientists adapted a genetic tool to modify virulence factors in zoonotic Chlamydia, revealing distinct sets of factors determine host infection and disease. The study sheds light on the molecular mode of action of SinC and IncA, opening new avenues for investigating these pathogens.
Researchers found that adding live Lactobacillus and Bifidobacterium probiotic bacteria to milk reduced NEC cases from 7.5% to 3.1% and sepsis cases from 22.6% to 11.5%. This study suggests routine probiotics can help premature babies get the right gut bacteria from birth.
A study found that hospital-grade disinfectants, including Clorox, have limited effectiveness against C. diff spores embedded in biofilms. The research highlights the need for improved cleansers to combat this deadly superbug, which claims thousands of lives each year.
Researchers have developed a new assembly that enhances photodynamic inactivation of bacteria, achieving significantly improved efficiency against gram-negative E. coli. The assembly combines a photosensitizer and a membrane-intercalating peptide, resulting in nearly 0% survival rate of E. coli upon light irradiation.
Researchers solved the domain structure of HPF from Staphylococcus aureus to understand its role in ribosome hibernation. The study identified key amino acid residues essential for protein function, opening doors to new compounds targeting stress proteins.
Researchers at the University of Sheffield have discovered that a bacterial toxin, lysostaphin, targets and breaks down MRSA cell walls, making it effective against antibiotic-resistant superbugs. This finding could lead to the development of new treatments targeting the same mechanism.
Researchers at ETH Zurich have created synthetic phages that can recognize and attack a broader range of bacterial strains, providing a potential solution for treating antibiotic-resistant infections. The synthesized phages share the same genome but have different receptor binding proteins, allowing them to target specific hosts.
A study found that shark skin microbiomes resist infection and maintain native bacterial communities even after injury. Regional differences were also detected in the microbial communities across different locations.
In unvaccinated children, measles infection can cause a significant weakening of the immune system, leading to impaired immunity against viruses and bacteria for months or even years. This phenomenon, known as 'immune amnesia,' was observed in two separate studies published in Science Immunology and Science.