Articles tagged with Antibiotic Resistance
Researchers at NTNU have developed a new method to study how bacterial signaling proteins react to treatment, paving the way for effective killing of MRSA. The method has shown a combination of two substances kills MRSA more effectively than when used separately.
A study on cockroaches reveals that they can transmit antimicrobial resistance genes to each other through direct contact and habitat interactions. The findings suggest that the transmission of AMR genes is not limited to antibiotic overuse, but also occurs between animals carrying genes in their microbiomes.
Scientists have created a vaccine candidate against antibiotic-resistant Enterococcus faecium using membrane vesicles, which stimulate the immune system and are stable and non-infectious. The new vaccine showed promising results in killing resistant bacteria, including those resistant to Vancomycin.
Researchers have identified a new enzyme, KtzT, that can form a rare nitrogen-nitrogen bond in molecules. The discovery enables the efficient production of tailored compounds with specific effects on organisms and their metabolic processes.
Researchers have developed a photoswitchable bactericide that can target either Gram-positive or Gram-negative bacteria using a light-driven 'switch'. The nanomaterial was shown to be effective in healing MRSA-infected wounds in mice models, offering a potential new solution to combat antibiotic-resistant infections.
A genomic analysis in southern Mozambique found that new molecular tests are needed to detect a wider range of mutations conferring resistance to first-line TB drugs. The study identified high numbers of isoniazid-resistant cases, which were also missed by the Xpert/Ultra test.
Researchers have discovered a new source of antimicrobial compounds in ice cores, which could help combat the growing threat of antimicrobial resistance. The study employs bioprospecting and synthetic biology techniques to unearth unique compounds from these biological time capsules.
Christina Nguyen, a senior biology student at UTA, received a second-place award for her research on antimicrobial drug resistance. Her project focuses on the study of gene expression in bacteria resistant to antibiotics, specifically Acinetobacter baumannii.
Researchers at the University of Copenhagen discovered that phages use small RNAs to disarm bacterial CRISPR-Cas immune systems, making them vulnerable to infection. This finding has significant implications for phage therapy and could lead to more specific and controlled CRISPR-Cas treatments.
A recent study published in Science has found that 75% of possible mutations in E. coli protein lead to high antibiotic resistance, contradicting the longstanding fitness landscapes theory. This discovery has significant real-world implications for understanding antibiotic resistance and evolutionary processes.
The study analyzed 170 known bacterial languages, grouping them into clusters based on molecular structure. Bacteria can understand related languages, but not those with vastly different languages. This understanding will aid in refining treatment approaches and developing biotechnology applications.
Researchers have developed additively manufactured Ti-Ta-Cu alloys that exhibit improved biocompatibility and bacterial resistance, making them a promising alternative to traditional Ti6Al4V implants. The alloys were found to display remarkable synergistic effects in improving both in vivo biocompatibility and microbial resistance.
A recent study published in One Health found that feeding dogs raw meat significantly increases the risk of excreting antibiotic-resistant E. coli, a bacteria that can cause life-threatening infections. The researchers emphasized the importance of proper hygiene and sourcing high-quality meat to reduce this risk.
Community antibiotic consumption in the EU increased by 18.8% between 2021 and 2022, reversing a significant decline seen during the pandemic. The resurgence of infections may have contributed to the rebound, but highlights the need for continued prudent use of antibiotics.
A novel electrical impedance-based microfluidic platform provides rapid and accurate antimicrobial susceptibility testing within an hour, eliminating the need for long-term bacterial culture. The platform reduces human error and increases reliability, making it a promising tool in combating antimicrobial resistance.
Researchers found that micronutrient deficiencies in early life can lead to significant shifts in the gut microbiome, promoting antibiotic-resistant bacteria and fungi. The study suggests that addressing undernutrition may be crucial in fighting antibiotic resistance.
Genomic surveillance proved vital in understanding COVID-19 evolution and spread. Researchers now seek its application in fighting antimicrobial resistance (AMR), a major global challenge. AMR causes substantial sickness and death worldwide, with estimates suggesting it could kill up to 10 million people annually by 2050.
A U-M study links increased physical independence, gut microbiome disrupting antibiotics, and hand contamination to vancomycin-resistant enterococci (VRE) environmental contamination in nursing homes. The study suggests that reducing antibiotic use and improving hand hygiene could control VRE spread.
Better education for cat owners and veterinarians is key to reducing antimicrobial use, which contributes to rising resistance. The study's findings highlight the need for faster, cheaper diagnostic testing and better training of pet owners and vets.
The global antibiotic resistance of Pseudomonas aeruginosa has decreased, with a significant drop in resistance to all tested antibiotics. However, a hypervirulent strain, ST235, has increased in prevalence, causing more aggressive infections and associated with high mortality rates.
A study led by the University of Sydney found that many antibiotics for childhood infections have less than 50% effectiveness, leading to thousands of unnecessary deaths globally. The World Health Organization has declared antimicrobial resistance a top public health threat, emphasizing the urgent need for updated guidelines.
A study found that river plastics can host pathogenic microbes like Pseudomonas aeruginosa and Escherichia, while water samples contained human pathogens. Degraded plastics released more organic compounds, encouraging microbial growth and antimicrobial resistance gene presence.
A study by Dr Eva Krockow found that existing terms for antimicrobial resistance, such as 'antimicrobial resistance' and 'AMR', are not taken seriously enough, failing to evoke risk perceptions. The researchers suggest renaming the term to a more memorable one that can effectively convey the severity of the issue.
A new Australian study suggests harnessing genomic surveillance technology can detect the rise of deadly 'superbugs', slowing their evolution and spread to improve global health outcomes. The study highlights the need for a multifaceted 'One Health' approach to surveillance, with practical recommendations for implementation.
EMBL researchers have systematically profiled over 10,000 drug combinations for their effectiveness against common multidrug-resistant bacteria. The team identified over a thousand interactions, including both synergies and antagonisms, with distinct effects on Gram-positive and Gram-negative bacteria.
A new study reveals a multi-drug resistant strain of E.coli, MDR ST131, can outcompete and displace other strains in the human gut. The research provides evidence that certain types of E.coli are more prone to developing antibiotic resistance, posing significant health risks.
Scientists sequenced nearly 600 Klebsiella samples and found two-thirds are K. pneumoniae, with carbapenem-resistant strains confined to clinical settings. Genomic surveillance informs control measures against treatment-resistant infections.
Pioneering work on bacteriophages to combat disease has received an £800,000 boost from the Biotechnology and Biological Sciences Research Council. The grant will advance production of phages to combat disease in the veterinary field and bring them to market.
A novel biomaterial developed at the Federal University of São Paulo can deliver medication directly to the gastrointestinal tract of fish, enhancing the efficacy of conventional drugs. The material is administered orally in powder form and has shown high penetration into epithelial cells without cytotoxic effects.
Researchers at the University of Virginia Health System are developing computer models to better understand the cellular processes and gene activity of multi-drug resistant bacteria Staphylococcus aureus and Pseudomonas aeruginosa. The goal is to identify vulnerabilities in these bacteria and advance the development of new treatments.
The University of Oklahoma is part of a $104 million federal initiative to study antibiotic resistance, led by Harvard Medical School professor Johan Paulsson. The project aims to understand how antibiotic resistance arises and characterize rare cells that survive during antibiotic treatments.
A study by Professor Mark Webber and his team found that the NRCS-A strain of Staphylococcus capitis is commonly carried on the skin and in the gut of uninfected neonatal babies, making transmission between babies within NICUs likely. The bacteria's unique genes allow it to survive in the gut, making cleaning the skin ineffective.
A University of Melbourne research team is developing an oral therapeutic to restore the activity of common antibiotics used to treat community-acquired bacterial pneumonia. The project aims to combat antibiotic-resistant bacteria and reduce healthcare costs, with potential applications in low- and middle-income countries.
A new study has detected high levels of bacterial resistance to antibiotics in two Australian aged care facilities, highlighting a concerning trend in the sector. The study used wastewater-based surveillance to detect antimicrobial resistance in Escherichia coli and found above-average levels of gentamicin resistance in one facility.
Researchers at the University of Sheffield have discovered a genetic scar that enables pneumonia-causing bacteria to become resistant to antibiotics. The study found that mutations in the pde1 gene act as an evolutionary gateway for this resistance, threatening patient treatment and highlighting the need for control measures.
Researchers have discovered a new plasmid in epidemic Vibrio cholerae samples that introduces genes encoding resistance to multiple antibiotics. The finding underscores the importance of genomic surveillance and suggests that the strain's stability poses a concerning factor for future outbreaks.
A Chinese research team discovered chelerythrine's dual effects in combating mobile colistin resistance by reducing MIC and eliminating bacterial colonies. The compound binds to phospholipids, increasing fluidity and impairing respiration, ultimately downregulating mcr-1 gene expression.
Researchers warn of risks associated with eating sushi and sashimi, especially for individuals with weak immune systems. The study highlights the importance of adopting a broad approach to combat the spread of antibiotic-resistant bacteria through animal and human health, food production, and environment.
A Boston University-led study identified genetic signatures of TB-susceptible and TB-resistant macrophages, leading to a new approach to tweak the immune system to fight the disease. The research could lead to therapies targeting host immunity to tuberculosis.
A multidisciplinary team investigates hospital wastewater samples and demonstrates the effectiveness of photocatalytic treatment in reducing pharmaceutically active compounds and bacteria. The study highlights the challenges posed by antibiotic-resistant bacteria and suggests a promising step towards sustainable wastewater treatment.
Researchers use genomic surveillance to identify distinct sexual networks for syphilis transmission in England, highlighting the presence of drug resistance. The study reveals information beyond standard epidemiological surveillance data, aiding public health strategies to break transmission chains.
Researchers at HKU introduce a novel dual Trojan Horse strategy to combat antibiotic-resistant bacteria by mimicking iron uptake. This approach enhances the effectiveness of sideromycins and prolongs their lifespan, offering hope in the fight against superbugs.
A water-soluble tannin known as PGG blocks 90% of the growth in four different species of Candida fungi by grabbing up iron molecules, starving the fungi of an essential nutrient. This mechanism does not promote drug resistance, unlike existing antifungal medications, and shows minimal toxicity to human cells.
Researchers at RMIT University have developed a nano-thin superbug-slaying material effective against drug-resistant bacterial cells. The black phosphorus-based nanotechnology achieved comparable results to antibiotics in eliminating infection and accelerating healing.
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 found that certain strains of Klebsiella pneumoniae are more likely to survive in blood and serum than others, while neutrophils are less effective at killing them. The study suggests a vaccine approach for prevention/treatment of infections may be feasible.
Researchers have developed a new way to engineer bacterial enzymes, creating unique versions that are hyper-sensitive to existing antibiotics. This breakthrough could lead to the creation of more potent treatments for bacterial infections and improve our understanding of antibiotic resistance.
A new study found that antibiotics promote the growth of antibiotic-resistant bacteria in the gut by providing extra nutrients, allowing these 'bad' bacteria to multiply. The research suggests that targeting beneficial bacteria can help restrict the growth of resistant bacteria, paving the way for microbiome therapeutics treatments.
Researchers found that the incidence of gut-colonizing ciprofloxacin-resistant E. coli increased in Seattle-area women over age 50, affecting about 1 in 5 women. The study suggests prioritizing strategies to control drug-resistant E. coli's ability to colonize the gut.
Researchers found that over 80% of honey bees sampled were positive for antimicrobial resistance targets, highlighting the need to monitor pollutants and implement clean-ups. The study also suggests that local waterbodies are a critical source of contamination, particularly in densely populated areas.
Implementing whole genome sequencing (WGS) can prevent bacterial healthcare-associated infections, saving the NHS £480 million annually. The technology has major implications for health policymakers and healthcare leaders, with potential benefits including reduced antimicrobial resistance.
Researchers warn that microplastics and nanoplastics in agricultural soils could contribute to antibiotic-resistant bacteria entering the food chain. This phenomenon is not well known, but studies suggest that plastics can act as vectors for transmitting pathogenic and antimicrobial resistant bacteria.
Researchers from the University of Bonn and international partners have discovered a new antibiotic called clovibactin that effectively attacks the cell wall of bacteria, including multi-resistant 'superbugs'. The compound has been shown to target bacterial cell wall components with high specificity, minimizing resistance development.
A new powerful antibiotic, Clovibactin, has been discovered that can combat harmful bacteria and multi-resistant superbugs. It targets three different precursor molecules essential for bacterial cell wall synthesis, making it difficult for bacteria to develop resistance.
Researchers at ETH Zurich found that Salmonella bacteria can thrive together in the gut and share information about antibiotic survival mechanisms through a metabolic strategy. This exchange of critical information enables the spread of antibiotic-resistant genes, highlighting the impact of dietary components on promoting this phenomenon.
A new study reveals that using big data and machine learning can improve antimicrobial resistance surveillance in livestock production. The research found correlations between environmental variables, microbial communities, and antimicrobial resistance, suggesting multiple routes for improving surveillance.
A new study from the University of Nottingham models how antibiotic resistance genes build up in gut bacteria through lifetime exposure to food intake and antibiotic treatment. The research suggests that reducing exposure to resistance genes is particularly effective during periods of antibiotic treatment, and that dietary advice shoul...
Researchers have developed a molecular 'singlet oxygen battery' that can target and kill methicillin-resistant Staphylococcus aureus (MRSA) bacteria in deep tissue layers. The technology, which does not require external light or oxygen, is highly effective in treating pulmonary infections caused by MRSA.
Researchers develop single-use nanoscale system that targets specific bacterium causing ear infections, eliminating most cases without antibiotic use. The system uses hypohalous acid similar to bleach and has shown promise in tests on chinchillas, with potential for future adaptation to prevent recurrent infections.
A new study reveals that bacterial resistance to albicidin is caused by an increase in the number of copies of a specific gene, leading to up to a 1,000-fold increase in resistance. This discovery highlights the growing threat of antibiotic resistance and underscores the need for effective strategies to combat it.