Articles tagged with Staphylococcus
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Researchers have developed a novel class of biomass-derived carbon dots that selectively eradicate Staphylococcus aureus in water. The nanomaterials preferentially bind to pathogen-specific cell wall components, triggering localized oxidative stress and membrane damage while sparing non-target bacteria. This approach offers a sustainab...
Researchers developed a tool to quickly identify resistant strains of S. aureus using genomic profiles and machine-learning models. The approach is based on gene-content information rather than highly detailed genomic profiles, making it more practical for real-life clinical contexts.
Researchers at HIPS have fully elucidated the biosynthetic pathway of biphenomycins, a potent antibiotic family against Gram-positive pathogens. They can now produce sufficient quantities and create new variants with improved pharmaceutical properties to combat drug-resistant S. aureus infections.
The largest-ever study of the nasal microbiome found that persistent carriers have a distinct microbiome with an abundance of Staphylococcus aureus and a lack of other species, while certain bacteria may help resist S. aureus colonization in non-carriers. The study also identified patterns in the nasal microbiome and used machine learn...
Researchers have developed a novel vaccine strategy using biomaterial scaffold vaccines to protect against Staphylococcus aureus infections in orthopedic device implants. The vaccines, made with immune cell-attaching molecules and S. aureus-specific antigens, create a beneficial immune response that significantly lowers bacterial burden.
Researchers at Auburn University have discovered the strongest natural protein bond ever recorded, revealing how Staphylococcus aureus clings tightly to human skin. The study found that calcium plays a key role in fortifying this grip, making it stronger and more resistant to breaking.
A National Institutes of Health (NIH)-supported clinical trial found that two intravenous doses of the antibiotic dalbavancin seven days apart are as good as daily IV doses of conventional antibiotics over four to six weeks for treating complicated Staphylococcus aureus bloodstream infections. The study results provide clear evidence f...
Researchers mapped the frequencies used by Staphylococcus bacteria to communicate, identifying a signal from another species as potent against MRSA. This alternative technique weakens bacterial ability to coordinate attacks on hosts without killing them.
A study led by MSU researchers reveals that Staphylococcus aureus possesses a surprising level of metabolic redundancy, allowing it to survive even when key enzymes are knocked out. The discovery uncovers mechanisms that could be targeted by new antibiotics, particularly when two specific enzymes are removed.
Researchers from Pusan National University have developed engineered bacterial vesicles that use a novel surface-displaying protein to selectively target and eliminate E. coli and S. aureus bacteria. These vesicles, derived from lactic acid bacteria, offer a promising alternative to conventional antibiotics.
Researchers have discovered a synthetic compound called infuzide that effectively targets and kills antimicrobial resistant strains of Staphylococcus aureus and Enterococcus in laboratory and mouse tests. The findings suggest that infuzide works differently from other antimicrobials, which may help prevent resistance.
Researchers from Uppsala University describe a fundamental mechanism of antibiotic resistance, revealing how FusB works like a crowbar to rescue ribosomes from fusidic acid. The study provides new insights into the most prevalent type of fusidic acid resistance in Staphylococcus aureus.
A new study finds that purified immunoglobulin F(ab′)2 fragments effectively prevent lethality caused by staphylococcal enterotoxin B in mice and rhesus monkeys. The therapeutic antibody mechanism involves inhibition of neutrophil activation, proliferation, and differentiation.
Researchers found that squat toilets release higher concentrations of bacteria than bidet toilets, but ventilation fans significantly lower these levels. Installing efficient exhaust fans can effectively reduce bioaerosol concentrations and exposure risks for the public.
Recent studies have found that new antibiotics are prone to rapid development of resistance, even before they are widely used. This raises concerns about the effectiveness of these treatments in the long run. To address this issue, researchers call for a shift in antibiotic development prioritizing novel modes of action and responsible...
UC San Diego researchers identified the key reason for vaccine failures against Staphylococcus aureus: overabundance of interleukin-10 (IL-10) in B cells and helper T cells. Blocking IL-10 restores vaccine efficacy, suggesting a potential solution to combat this deadly bacterium.
A new study has identified novel strains of microbes that have adapted to use limited resources in cities, including those found in Hong Kong's subways and skin. These microbes can metabolize manufactured products, posing health risks if they are pathogenic.
Researchers at the University of Tübingen discovered a novel antibiotic substance called epifadin produced by specific strains of Staphylococcus epidermidis. Epifadin has an antimicrobial effect against various pathogens, including Staphylococcus aureus, and could be used as a lead structure for developing new antibiotics.
Australian researchers analyzed over 1,300 Golden staph strains, linking specific genes to antibiotic resistance and the bacteria's ability to linger in the bloodstream. The study highlights the diagnostic power of integrating clinical and genomic data to develop targeted solutions for deadly superbug infections.
Researchers have discovered how Golden staph, a common bacterial infection, hides inside human cells to avoid detection. The study used InToxSa, a new methodology that enables the study of Golden staph behavior on a large scale.
Researchers tracked the evolution of Staphylococcus aureus in patients with eczema, discovering rapid mutations in a gene that enables the bacteria to grow faster on the skin. These findings could lead to targeted treatments by targeting variants of S. aureus associated with eczema symptoms.
Researchers discovered a novel role for an E. coli enzyme in reducing the toxic effects of hypothiocyanite, a key antimicrobial released by the human immune system. This finding has implications for diseases like cystic fibrosis and inflammatory bowel disease, as it suggests that various bacteria can evade this powerful oxidant.
Researchers used a new tool to capture hundreds of undiscovered mechanisms of gene regulation in MRSA, revealing a previously unknown layer of gene regulation. The study identified a regulatory RNA that promotes an enzyme involved in cell wall thickening, potentially identifying new targets for antibiotic treatment.
Researchers from the University of Tsukuba discovered a mechanism for the transfer of antibiotic resistance among Staphylococcus aureus bacteria through natural transformation. The study found that biofilm formation promotes horizontal gene transfer, which can lead to the spread of methicillin resistance.
Scientists at University of Illinois and Mie University develop monoclonal antibodies to prevent lung cell death in mouse models of idiopathic pulmonary fibrosis and acute respiratory disease syndrome. Non-invasive diagnostic tools also presented could aid in predicting disease progression and identifying patients at risk.
Scientists at Kazan Federal University identify a unique post-translational modification in Staphylococcus aureus elongation factor P protein. This discovery provides a promising target for developing new antibiotics to combat nosocomial infections.
Researchers from Kazan Federal University and their international partners have discovered how Staphylococcus aureus resists antibiotics using cryoelectron microscopy and X-ray diffraction. The RsfS protein protects the bacteria by preventing ribosome formation.
Researchers found MRSA acquired mainly through community transmission, with higher prevalence among individuals of immigrant background in Norway. The study suggests a need for coordinated initiatives to reduce the spread of antibiotic-resistant pathogens.
A team of chemists has identified key enzymes in the metabolism of staphylococci, which could be targeted to starve bacteria and develop new antibiotics. The researchers used a novel methodology to isolate and analyze these enzymes, discovering previously unknown targets for new antibiotic development.
Researchers analyzed 224 ST8 isolates and found that the ancestor likely emerged in Central Europe during the mid-19th century. The lineage then spread globally, acquiring characteristics of USA300 and becoming widespread in North America by the early 20th century.
Notre Dame researchers discovered how MRSA regulates its cell wall in response to beta-lactam antibiotics, enabling drug resistance. They also found a way for a new antibiotic, ceftaroline, to target and inhibit the enzyme responsible for resistance.
Researchers have discovered a novel compound, anthracimycin, produced by an ocean microbe, which exhibits potency against anthrax and methicillin-resistant Staphylococcus aureus (MRSA). The finding highlights the vast resource of new materials in the oceans for treating various diseases and illnesses.
Researchers discovered a novel strain of Staphylococcus aureus, ST398, in an Iowa child care worker who reported no contact with livestock. The finding is an unexpected occurrence in a study examining the presence of Staphylococcus aureus in child day care facilities.
The study reveals a small chemical makes Staphylococcus aureus stronger, more infectious and resistant to antibiotics. Shutting down this synthesis renders the bacteria non-functional and non-infectious.
A study by researchers at the University of California, San Diego reveals that normal skin bacteria trigger a pathway preventing excessive inflammation after injury. This mechanism involves staphylococcal lipoteichoic acid and Toll-like receptor 3 activation, providing new therapeutic approaches for inflammatory skin diseases.
Targeting hand-touch surfaces in hospitals is a feasible short-term strategy for tackling MRSA transmission. Dr Stephanie Dancer argues that prioritizing cleaning over hand hygiene is essential to controlling the spread of MRSA.