Articles tagged with Antibiotic Resistance
Researchers at Hokkaido University have developed a comprehensive derivative synthesis method to find new antimicrobial drugs. They identified eight analogs possessing strong MraY inhibitory and antibacterial activity, with one showing promising effectiveness in mouse infection models.
Researchers from Leiden University discuss targeting ABC transporters in pancreatic ductal carcinoma (PDAC), a cancer with poor survival rates. The authors highlight the potential of inhibiting ABC transporters to overcome chemoresistance and suggest developing stratification protocols to identify patients most likely to benefit.
Researchers at University of Cambridge developed machine-learning tool to identify drug-resistant Salmonella Typhimurium bacteria from microscopy images. The algorithm correctly predicted resistance or susceptibility without culturing the bacteria, reducing diagnosis time from days to hours.
Researchers analyzed genomic data and human travel patterns to understand the spread and evolution of Streptococcus pneumoniae. The study found that a pneumococcal vaccine reduced antibiotic resistance but allowed non-targeted strains to gain a competitive advantage, suggesting short-lived protection.
A new study finds that antimicrobial peptide mixtures can delay the evolution of antibiotic resistance in Pseudomonas aeruginosa. The mixtures, which are synthesized in a lab, were found to prevent cross-resistance and maintain drug sensitivity.
A study at Umeã University reveals that an enzyme breaks down the bacteria's protective outer layer, facilitating the transfer of genes for resistance to antibiotics. The researchers identified that only the SLT domain was active in PrgK, but it has an important role in regulation.
A new study suggests taxing certain antibiotics could help manage the threat of antibiotic resistance in humans. By making narrow-spectrum drugs cheaper and broad-spectrum ones more expensive, GPs may be incentivized to prescribe narrower options.
A team of researchers from the University of Southern Denmark has discovered a mechanism that reduces the formation of biofilm on the surface of Pseudomonas aeruginosa, a bacterium commonly found in hospitals and resistant to most antibiotics. The biofilm-reducing system is naturally stimulated by cell wall stress, and its discovery of...
When E. coli detects damage from antibiotic Ciprofloxacin, it sends out an SOS signal that alters cellular activity. The bacteria then mutate their DNA to repair the damage or adapt to resist the antibiotic. Researchers studied this process in detail using bioreactors and found all genes are activated simultaneously at the protein level.
A recent study found that antibiotic-resistant strains of bacteria endemic to the UK and Norway are not prevalent in Pakistan despite widespread use of antibiotics. The study used genomic surveillance to map different strains of Escherichia coli, highlighting the importance of understanding bacterial threats in specific regions.
Lopatkin's lab will investigate how bacterial metabolism contributes to antibiotic resistance using sophisticated tools and techniques. The research aims to identify drug-resistance mutations that arise in bacteria adapting to different antibiotics and metabolism-altering chemicals.
Scientists found that a small increase in temperature can drastically change mutation frequency in E. coli bacteria, facilitating resistance development. The results suggest using fever control or antimicrobial drugs at higher temperatures to mitigate antibiotic resistance.
Researchers have gained insight into how a deadly strain of salmonella adapts to invasion, flourishing in hostile environments and evading immune defenses. The study sheds light on the role of fluid shear forces in bacterial behavior, which may accelerate the design of new therapies for life-threatening infections.
A team of researchers has created a water-soluble version of the bacterial enzyme histidine kinase, which could be used in high-throughput screens to rapidly test potential drugs that target this enzyme. The new protein retains its natural functions despite being converted from a hydrophobic protein.
Scientists at King's College London have developed a rapid method for creating cyclic peptides, an important class of antibiotic molecules, which can be produced in minutes rather than hours or days. This breakthrough could inspire renewed efforts towards developing new antibiotics to combat antimicrobial resistance.
A global research team identified 863,498 promising antimicrobial peptides in marine and soil environments, as well as human and animal guts, to combat antimicrobial resistance. The findings come with a renewed focus on combatting the growing number of superbugs resistant to current drugs.
Researchers discovered that azole fungicides kill fungal pathogens by initiating self-destruction through two pathways: apoptosis and macroautophagy. This mechanism explains why azoles are losing effectiveness against resistant fungal strains.
A recent study has identified over 300 distinct types of bacteria in Roman Baths water, including those with antibiotic-producing capabilities. These microorganisms show promise as a potential source of novel natural products to combat antibiotic resistance.
A new study demonstrates personalized phage therapy's effectiveness in treating antibiotic-resistant infections in animals, with a case of a cat healing from a persistent wound. The treatment combines a specific anti-Pseudomonas aeruginosa phage with ceftazidime, achieving full healing after 14 weeks.
A European Union-funded project investigates how plastic particles and climate change contribute to the spread of antimicrobial resistance in aquatic environments. The researchers explore the formation of 'plastisphere' colonies where bacteria exchange genes responsible for antibiotic resistance.
Researchers tested seven antibiotics in combination with various natural compounds, finding synergistic effects against multidrug-resistant bacteria. The study suggests combining antibiotics with plant extracts or phytochemicals could be a promising strategy to combat antimicrobial resistance.
A new Lancet Series estimates that over 750,000 deaths associated with antimicrobial resistance (AMR) could be prevented annually through improved prevention methods. AMR poses significant threats to newborns, elderly individuals, and those with chronic illnesses, causing nearly 5 million deaths globally each year.
Researchers at Utrecht University have discovered a new mechanism by which the antibiotic plectasin traps bacteria using a 'Velcro'-like structure. This innovative approach could lead to the development of more effective antibiotics to combat antimicrobial resistance.
Researchers analyzed historical milk samples from the 1940s and found that some were resistant to tetracycline antibiotics, defying the conventional understanding of antibiotic resistance. The discovery adds to the growing body of literature on natural antibiotic resistance occurring before humans began using antibiotics.
Researchers mapped wastewater flows on farms and found that copper and zinc footbath water causes fluctuations in antibiotic-resistant bacteria in slurry, highlighting opportunities to reduce AMR pollution through proper waste disposal or recycling.
New study reveals two novel mechanisms that contribute to antibiotic resistance in bacteria, accelerating the growth of resistant bacteria during treatment. These mechanisms can occur independently and are linked to increased gene copy number variation and heteroresistance, complicating treatment for patients.
A new study using AI to analyze global antimicrobial resistance research found significant gaps in terminology, methods, and communication across sectors. The findings emphasize the importance of integrating surveillance across regions and regions worldwide to prioritize solutions.
A recent study reveals that a cellular process called transfer Ribonucleic acid (tRNA) modification influences the malaria parasite’s ability to develop resistance. This breakthrough discovery could help researchers develop new drugs to combat resistance and better tools for studying RNA modifications.
Researchers have successfully adapted a modified drug molecule to selectively bind to a protein in bacteria, rather than human cells, making it more effective against bacterial infections. This breakthrough could provide a new avenue for treating antibiotic-resistant bacterial infections.
A new therapy has been identified that can penetrate the slime protecting drug-resistant bacteria, allowing it to be killed by the body's immune system or antibiotics. The antimicrobial peptide, derived from cow peptides, targets sugar connections in the slime structure, damaging its integrity and allowing entry.
Researchers discover epilancin A37, a lantibiotic produced by staphylococci that targets corynebacteria, key competitors in the human microbiome. The compound kills bacteria without destroying the cell membrane.
A new study has found that hospital toilet surfaces in the UK are contaminated with multi-drug resistant superbugs, including Staphylococcus aureus and Escherichia coli. The study reveals that patient toilets were the worst affected, with higher levels of bacteria and fungi found on floors and high surfaces than hand-touch sites.
A new study found that antimicrobial resistance (AMR) prevalence in bloodstream infections varies by age and sex, with age being a significant factor. The study analyzed data from 29 European countries and found diverse patterns of association between AMR and age/sex for different bacterial species and resistance phenotypes.
New therapies aim to strengthen the body's immune responses and restore antimicrobial functions to combat TB. Researchers have identified small molecule compounds that reduce Mtb growth inside immune cells by up to 50-75%, suggesting a potential complement to standard therapy.
Researchers are developing CRISPR-Cas gene editing technology to modify and attack AMR bacteria, offering new tools to battle the increasing rates of antimicrobial resistance. By targeting specific genes and using phage-based delivery systems, scientists aim to develop safer therapies.
CRISPR technology holds promise in tackling antimicrobial resistance by re-sensitizing bacteria to first-line antibiotics. However, bacteria have developed anti-CRISPR systems that can repair damage caused by the technology, complicating its effectiveness.
Clinical trials show decreased effectiveness of vancomycin in treating C. diff infection, with reduced cure rates and lower sustained clinical responses associated with antimicrobial resistance. The finding poses a significant concern for the management of C. diff infection, with only two recommended antibiotics available.
A global genomic surveillance system using latest technologies and a 'One Health' approach can detect novel pathogens like avian influenza and antimicrobial resistance, catching epidemics before they start. This can inform vaccination campaigns, targeted treatments, and public health responses to prevent epidemics.
A recent US study found that hospital-acquired antimicrobial-resistant infections increased by 32% during the COVID-19 pandemic and still exceed pre-pandemic levels. The study highlights the urgent need for solutions to address difficult-to-treat gram-negative infections, which are becoming increasingly resistant to antibiotics.
A Cleveland Clinic study uses reinforcement learning to design antibiotic regimens that minimize resistance and maximize susceptibility. The AI model predicts the most efficient treatment plans for multiple strains of E. coli, informing hospital-wide infection management.
Climate change exacerbates antimicrobial resistance by increasing global temperatures, sea levels, and disease transmission. This threat multiplier effect poses significant risks to human health, food supply, and ecosystem integrity.
A team of researchers from MSU and Harvard Medical School has created a promising vaccine candidate for antibiotic-resistant bacteria. The vaccine targets Staphylococcus aureus and methicillin-resistant Staphylococcus aureus (MRSA), with high levels of immunity observed in animal trials.
A recent study found that infants born via C-section have more antibiotic-resistant genes, while antibiotic use and prematurity fuel resistance. Infants from Africa had more resistant genes than those from Europe. Probiotics may help reduce the spread of antibiotic resistance in infants by targeting their gut microbiome.
A study by North Carolina State University found that rates of Salmonella in fecal and environmental samples were more prevalent on larger commercial farms than on smaller backyard farms. The researchers also discovered multidrug resistance in Salmonella samples from both types of production systems.
Therapeutic phages can detect epithelial cells of the human respiratory tract, eliciting proinflammatory responses. Specific phage properties and airway microenvironment influence these responses.
A new study finds that antibiotic prescriptions have rebounded to pre-pandemic levels, with 1 in 4 prescriptions going to patients who don't need them. This trend threatens to fuel antimicrobial resistance, which kills 48,000 Americans annually.
A recent study published at the ESCIMD Global Congress found that Black female patients are at higher risk of death from carbapenem-resistant enterobacterales (CRE) bloodstream infections. The study analyzed data from 362 US hospital patients and discovered that Black females had a significantly increased risk of mortality compared to ...
A researcher will study how plants defend themselves against nematode infections, which could lead to novel drugs or antibiotics for humans and livestock. The project aims to increase food security in Africa and Asia by understanding the molecular mechanisms behind plant resistance.
Researchers have developed microscopic crystals that activate in the presence of light, releasing silver ions with antimicrobial activity. These silver-based micromotors move autonomously through photocatalysis, killing bacteria and providing a promising tool for environmental recovery.
A new UK/Portuguese study suggests that pets can act as reservoirs of resistance, spreading antibiotic-resistant bacteria to their healthy owners. The study found multidrug-resistant bacteria in both pet-owning households and among the owners themselves.
A new study highlights the critical role of hospital sinks in transmitting multidrug-resistant bacteria, with a pediatric ward outbreak showing even replacing all sinks didn't stop the contamination. The research emphasizes the importance of focusing on sinks and water-related areas to combat antibiotic resistance.
Researchers have developed novel antibiotics based on protein building blocks with fluorous lipid chains to fight resistant pathogens. The compounds were shown to be effective against methicillin-resistant Staphylococcus aureus (MRSA) in mouse models, killing bacteria without developing resistance.
A new oral vaccine for recurrent Urinary Tract Infections (UTIs) has been shown to prevent infections in over half of participants for up to nine years. The MV140 vaccine was found to be safe and effective, with no notable side effects reported.
Researchers developed zinc oxide nanoparticles to selectively inhibit multidrug-resistant bacteria, disrupting cell membranes. The material is considered safe and cheaper than other metal-based nanoparticles, with potential applications in water treatment and food packaging.
Researchers created a hydrogel that kills bacteria naturally, promotes cell growth and heals wounds more effectively than traditional gels. The gel is infused with amino acid polylysine and platelet-rich blood plasma to create properties well-suited for wound care.
A quasi-experimental study of 35 health care facilities found chlorhexidine bathing and nasal decolonization to be effective in reducing multidrug-resistant organism prevalence. The interventions also led to decreased infection-related hospitalizations, costs, and deaths among nursing home residents.
Researchers at Uppsala University have developed a new class of antibiotics targeting LpxH protein in Gram-negative bacteria, showing potent activity against multidrug-resistant strains. The discovery holds promise for treating bloodstream infections and has potential for future clinical trials.
Researchers developed novel pre-clinical models to examine the behavior of Klebsiella pneumoniae (Kp) strains, revealing differences in aggressiveness between hospital-acquired and community-acquired infections. These models provide a platform for assessing novel drugs and interventions to combat Kp-related diseases.
Scientists have extracted a powerful antibacterial peptide from African catfish skin mucus, which could help combat antibiotic-resistant bacteria. The peptide, called NACAP-II, has been shown to disrupt bacterial cell membranes at very low concentrations.
Research from the University of Pittsburgh and UPMC found that primary care telemedicine visits are associated with lower antibiotic prescription rates for children compared to virtual-only direct-to-consumer providers. The study highlights the importance of integrated telemedicine within primary care settings.