Articles tagged with Antibiotic Resistance
Researchers develop structure-disrupting peptides to target bacterial proteins' structural core, reducing likelihood of resistance development. The study finds promising results in inhibiting multidrug-resistant bacteria growth and treating gonococcal infections.
A new study found all ESBL-producing E. coli isolates from US retail meat were resistant to at least three antimicrobial classes, carrying various types of CTX-M type ESBL genes. The presence in food-producing animals and retail meat supplies may contribute to a greater incidence of infections.
Researchers at Newcastle University have identified a naturally occurring antibiotic called kanglemycin A that is effective against rifampicin-resistant Tuberculosis. The compound was found to bind to the same groove as rifampicin but with extended structures, allowing it to maintain its affinity and inhibit the bacteria.
A new study finds that countries with better infrastructure, lower corruption, and higher spending on public health have lower rates of antibiotic resistance. Improving sanitation, access to clean water, and good governance are crucial in reducing antimicrobial resistance.
Research at the University of Edinburgh found that a previously thought-to-be ineffective antibiotic, fosfomycin, can actually kill Listeria bacteria in infected cells and mice. This breakthrough may provide new treatment options for life-threatening Listeria cases.
The European Union and European Economic Area experience stable rates of gonorrhea resistance to antibiotics, with azithromycin remaining a concern. The use of dual therapy regimens may contribute to increased susceptibility.
A California emergency department study found nearly 6% of urinary tract infections were caused by drug-resistant bacteria, with no identifiable risk factor for infection in many cases. The researchers urge wider use of urine culture tests and improved follow-up systems to address the growing problem of antibiotic resistance.
Using computer modeling, researchers have teased out the details of how an antibiotic pump works, revealing its 'lock' and mechanism. This breakthrough aims to develop new drugs that can plug the pump, potentially restoring antibiotics' effectiveness.
A recent study published in Molecular & Cellular Proteomics has uncovered changes in TB strains that make them vulnerable to other antibiotics. The research also reveals a potential target for developing new drugs against isoniazid-resistant tuberculosis.
Researchers have discovered synergy between colistin and other antibiotics, offering hope for treating multidrug-resistant Gram-negative bacterial infections. Combination therapy may allow clinicians to use lower effective doses of antibiotics, reducing toxicities and slowing antibiotic resistance development.
Researchers found that microbes from diverse travelers mix throughout the day, forming a uniform microbiome by evening. The study suggests that urban planning can impact bacterial types encountered, guiding public health strategies and transit designs.
The University of Nebraska-Lincoln is partnering with Iowa State University to create an institute addressing antimicrobial resistance, an urgent global public health concern. The institute aims to accelerate discoveries and enhance stewardship of disease prevention tools.
Researchers found that different types of efflux pump proteins, key to antibiotic resistance, may not have evolved from a common ancestor. Instead, they may have developed independently through convergent evolution, offering new insights into fighting drug-resistant superbugs.
Research reveals airborne transmission of antibiotic-resistant bacteria (ARGs) across the globe, with high levels detected in urban areas. ARGs resistant to multiple antibiotics, including vancomycin, were found in air samples from cities worldwide.
New research reveals that very low concentrations of antibiotics can lead to an increase in resistant bacteria, highlighting the environment as a critical battleground in the fight against antibiotic resistance. The study found that sewage waste water and natural environments can be breeding grounds for resistant bacteria, which can th...
A new study found that trace amounts of antibiotics in leeches' environment can increase resistant bacteria, which displaced healthy microbes. The research suggests a low threshold for antibiotic exposure to boost resistant microbes.
Research by UConn microbiologists found that tiny amounts of antibiotics in chicken blood can encourage bacterial resistance. The study used leeches as a perfect test case and discovered that low levels of ciprofloxacin in poultry blood were selecting for antibiotic-resistant Aeromonas bacteria.
A global study reveals 62% of antibiotics sold without prescription in community pharmacies worldwide, posing a significant risk to the development and spread of antibiotic resistance. The study highlights the urgent need for better enforcement of laws regulating antibiotic sales.
New evidence suggests that reducing antibiotic course length can reduce the risk of resistance. Microbial communities can reach a tipping point when exposed to antibiotics, leading to an irreversible shift towards drug resistance. Stopping treatment too soon may not prevent resistance from occurring.
Researchers at the University at Buffalo have discovered biomarkers that can accurately identify hypervirulent Klebsiella pneumoniae, a rare but increasingly common strain of the bacterium. The discovery provides a clear roadmap for developing a diagnostic test to optimize patient care and epidemiologic surveillance.
A study published in Antimicrobial Agents and Chemotherapy found that nearly half of all prescriptions reviewed were prescribed unnecessarily, with a third of cases involving non-face-to-face encounters. The research highlights the need for improved antibiotic stewardship in outpatient clinics.
A study published by Imperial College London shows that financial incentives led to a 3% decrease in antibiotic prescriptions for common respiratory tract infections. The reduction was particularly notable among children and those with sore throats, highlighting the potential of this approach to curb excessive antibiotic use.
A study involving wild and captive baboons found evidence of antibiotic resistance in their gut microbiomes, even without human-produced antibiotic exposure. The researchers used functional metagenomics to identify resistance genes, revealing a surprising enrichment of Actinobacteria in wild baboon populations.
A new study aims to identify drivers of antibacterial resistance in Thailand, focusing on two species of bacteria: Klebsiella pneumoniae and Escherichia coli. The researchers will investigate how farm management practices, chemical pollution, and human behaviors influence transmission of these bacteria.
A £3 million LSTM-led DRUM Consortium will investigate how human behavior drives antimicrobial resistance in Uganda and Malawi. The research aims to understand key drivers of resistance, including surveying human behavior around antibiotic use, water availability, sanitation, and hygiene.
Scientists at Scripps Research have discovered a previously unknown mechanism by which bacteria protect themselves from toxic substances, providing new clues for improving chemotherapies. The study reveals that three genes encode proteins that bind to toxins, keeping them separate from the rest of the organism.
New computational simulations suggest that antibiotic treatment can suppress resistant species via attack on sensitive partner species in mutualistic relationships, and spatial arrangement influences cross-protection. The study found that competing species are more susceptible to suppression than mutually interacting species.
Researchers at the University of Queensland found that triclosan can induce antibiotic resistance by accelerating the spread of multi-drug resistant bacteria. The study suggests that high residual levels of triclosan in everyday environments are contributing to the growing threat of antimicrobial resistance.
Researchers at Purdue University identified a new compound F6 that is as effective as FDA-approved antibiotics against life-threatening infections. Preliminary tests showed it was less susceptible to bacterial resistance. The compound has been tested against various antibiotic-resistant pathogens, including MRSA and VRSA.
A new study highlights the importance of educating nurses about antimicrobial stewardship and obtaining their buy-in to strengthen antimicrobial stewardship programs (ASPs). The research found that nurse participation leads to closer team coordination, cross-discipline collaboration, and ultimately saves lives.
A study found that 71.4% of residents in Nguyen Xa village, Vietnam harbored colistin-resistant E. coli bacteria, which showed multidrug resistance to at least one antibiotic drug in three or more classes. The prevalence of household members possessing colistin-resistant E. coli was also high (80.6%).
Researchers discovered a carbapenem-resistant, hypermucoviscous Klebsiella pneumoniae isolate with enhanced virulence and colistin heteroresistance from a patient in the US. The bacteria's increased virulence poses a significant threat to healthcare settings.
A study found that patients' beliefs in the harmlessness of antibiotics can lead clinicians to prescribe them more, despite knowledge of side effects, resulting in increased healthcare costs and adverse reactions. The 'WNTAR' belief can also contribute to antibiotic resistance, a growing global health threat.
Researchers at North Carolina State University have synthesized a new compound inspired by a natural product that is effective against drug-resistant bacteria like MRSA. The molecule, JJM-35, has been shown to be up to 50 times more effective than the original natural product against several bacterial strains.
A gene regulation network in Acinetobacter baumannii boosts both virulence and antibiotic resistance when faced with antibiotics. The network, known as BfmRS, controls key processes involved in cell envelope construction and division, leading to increased drug resistance and disease severity.
Researchers at Martin-Luther-University Halle-Wittenberg found a way to increase the effectiveness of common TB antibiotics while reducing resistance. The new compound blocks the bacteria's pumping mechanism, improving drug efficacy. Tuberculosis is a major global health threat, with 490,000 cases of multi-resistant TB reported in 2016.
The UK government has invested £1m in the Global Antibiotic Research and Development Partnership (GARDP) to accelerate the development of a new treatment for drug-resistant gonorrhoea. This funding will enable sustainable access to the treatment in low- and middle-income countries, where the burden of infection is greatest.
A study found that higher local temperatures and population densities are associated with increased antibiotic resistance in common bacterial strains. The findings suggest climate change could be compounding an increase in antibiotic resistance, posing a significant threat to public health.
A European Centre for Disease Prevention and Control study shows the clear public health benefit of whole genome sequencing in surveillance and control of Neisseria gonorrhoeae. The study analyzed over 1,000 isolates from 20 countries, revealing a widespread distribution of drug-resistant strains across Europe.
A genomic approach has mapped antibiotic resistance in gonorrhoea throughout Europe, enabling accurate determination of resistance and identification of incorrect laboratory test results. The study established an open genomic database, supporting real-time surveillance of gonorrhoea worldwide.
A recent study found that one of the most widely prescribed antibiotics does not meet expected success rates, while another is as effective as newer drugs. The study suggests re-evaluating old antibiotics against modern standards to ensure patient well-being and restrict newer antibiotic use.
A study has isolated colistin-resistant E. coli from commercial poultry farms in China and hospital patients, revealing the coexistence of mcr-1 and mcr-3 resistance genes on a single plasmid. This finding poses a significant threat to public health due to the spread of antibiotic resistance genes.
The study found a significant increase in hospital-acquired infections caused by antibiotic-resistant Acinetobacter baumannii among US children over a 13-year period. Children with chronic conditions are at higher risk of infection due to compromised immune systems.
Targeted probiotic supplementation in breastfed infants reduces antibiotic resistance genes by 87.5%, including genes associated with respiratory, intestinal, urinary infections, chlamydia, and acne.
A US study tracked antibiotic resistance in A. baumannii infections among children from 1999 to 2012, finding an overall increase in resistance to cephalosporins and carbapenems, but a decline after 2008 due to improved infection control measures.
Researchers discovered a new resistance mechanism in Acinetobacter baumannii that blocks the critical antibiotic colistin. The mechanism involves disruption of the hns gene by an insertion sequence element, leading to increased expression of genes that boost colistin resistance.
A study led by UC San Francisco found that treating young children with azithromycin significantly reduced child mortality rates in Sub-Saharan Africa. The intervention resulted in a 13.5% lower overall child mortality rate compared to placebo-treated communities.
A new study published in Molecular Plant-Microbe Interactions reveals the mechanism by which antibiotics kasugamycin and blasticidin S kill fire blight bacteria in apple and pear trees. The researchers found that the antibiotics target a critical gene, ksgA, leading to bacterial death.
Researchers at Oxford University have identified a genetic catalyst, ampR, that accelerates the evolution of antibiotic resistance in bacteria. The study found that species carrying the ampR gene evolve resistance at a higher rate than those lacking it.
New research shows that low concentrations of antibiotics can lead to high antibiotic resistance in bacteria, with mutations occurring mainly in genes previously not regarded as typical resistance genes. This highlights the need to prevent further development of resistance.
Researchers have discovered novel chromosomal mutations contributing to fosfomycin resistance in E. coli, with uhpB and uhpC mutations showing highest impact. The study found that these mutations rendered the antibiotic ineffective at lower doses compared to other mutations.
Researchers found piperacillin-tazobactam significantly less effective than meropenem in treating BSI caused by ceftriaxone-resistant E. coli and K. pneumoniae. The study concluded that piperacillin-tazobactam should be avoided when treating these organisms due to its inferior efficacy.
Researchers have discovered an alternative strategy to combat antimicrobial resistance by repositioning colloidal bismuth subcitrate, which effectively paralyzes multi-resistant superbugs and suppresses the development of antibiotic resistance. The findings offer a promising new approach to treat deadly infections caused by CRE and CRKP.
Researchers uncover how bacterial 'gene swapping' fuels emergence and spread of infectious diseases, including antimicrobial resistance crisis.
Recent studies published in PLOS Computational Biology have introduced novel computational methods to explore the molecular function of proteins. These approaches aim to simplify the challenge of determining functions for an ever-increasing amount of known proteins by identifying shared functional sites and predicting their activity.
The gonorrhea bacterium has developed resistance to multiple antibiotics, with ceftriaxone being the last effective option. Researchers identified mutations that enable resistance to ceftriaxone, which also impairs growth rate, but lab experiments showed resistant strains can quickly outcompete non-resistant strains.
Researchers analyzed the genome of a deadly, drug-resistant bacterial strain to identify molecular drivers of resistance. The study found four genes responsible for resistance to beta-lactams and other antibiotics.
A standardized set of actions has been established for hospital-based Antimicrobial Stewardship (AMS) programs globally. Seven core elements and 29 related checklist items describe essential standards for hospitals in high- and low-income countries.
A new study reveals that global antibiotic use increased by 39% between 2000 and 2015, with significant increases in low-income and middle-income countries. The study highlights the need for strategies to reduce unnecessary antibiotic use and support alternatives to address the growing threat of drug resistance.
Antibiotic use surged globally between 2000 and 2015, with defined daily doses increasing by 65% and the consumption rate rising by 39%. The trend was most pronounced in low- and middle-income countries, where antibiotic use rose by 114% and the consumption rate increased by 77%.