Articles tagged with Antibiotics
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.
Chimpanzees have been observed seeking out specific plants with medicinal properties to treat their ailments, and further pharmacological testing has confirmed the presence of anti-inflammatory and antibiotic compounds. These findings highlight the importance of studying animal behavior in discovering new medicines.
Researchers have identified a potent and unique way to kill drug-resistant bacteria using a repurposed compound called LEI-800. The compound targets the bacterial enzyme DNA gyrase, which is essential for bacterial growth and has not been targeted by existing antibiotics.
Prolonged β-lactam antibiotic infusions associated with reduced 90-day mortality in adults with sepsis or septic shock. This standard of care approach is now supported by high certainty evidence.
The BLING III trial found a 2% lower 90-day mortality and a 6% higher clinical cure rate for continuous β-lactam antibiotic infusions compared to intermittent infusions in critically ill patients with sepsis. Continuous infusions were also associated with improved patient outcomes.
A team of researchers at Penn has developed an artificial intelligence tool that can mine the vast and largely unexplored biological data from over 10 million molecules to discover new candidates for antibiotics. The deep learning approach identified thousands of candidates in just a few hours, with many showing preclinical potential.
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.
A novel antibacterial lipopeptide produced by Serratia marcescens has been shown to be highly effective in killing Staphylococcus aureus. The lipopeptide targets the cell membrane, causing lesions and cell death.
Researchers found no difference in post-operative infection rates between patients treated with and without antibiotics prior to surgery. The study suggests that pre-surgical antibiotic treatment may not be necessary for pediatric elbow fractures.
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.
A new study uses machine learning to search for antibiotics in a vast dataset of microbial genomes, identifying 863,498 candidate antimicrobial peptides. Promising results are observed in initial tests against disease-causing bacteria and preclinical animal models.
Researchers at UC Davis Health discovered that mesalamine can replace good bacteria's work in fighting Candida albicans in the gut. The study found that mesalamine maintains a low oxygen environment that prevents fungal growth, reducing the risk of invasive candidiasis.
A six-state hospital system reported significant decreases in surgical site infections, mortality, length of stay, and readmissions after implementing a comprehensive SSI prevention bundle. Orthopedic patients showed the most benefit, with a 32.8% reduction in SSI rates.
A novel triple combination of meropenem, avibactam, and a metallo-β-lactamase inhibitor demonstrates significantly broader spectrum of antimicrobial activity against diverse β-lactamase-producing bacteria. The study offers a new strategy to combat global health crisis of antibiotic resistance.
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.
Researchers developed lolamicin, an antibiotic that selectively targets and kills gram-negative pathogens like E. coli and Klebsiella pneumoniae while preserving beneficial gut microbes.
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.
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 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.
Treatment with bisoprolol did not reduce self-reported COPD exacerbations, contradicting previous expectations. Researchers found bisoprolol effective for cardiovascular conditions but noted physician reluctance to prescribe it for COPD patients.
New studies by University of Michigan physicians highlight the need for improved diagnosis coding to target efforts to optimize antibiotic use and reduce risk. Inappropriate prescriptions occur in up to 35% of adults treated in emergency departments, with similar rates seen in clinics serving Medicaid patients.
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 Purdue University researcher has received a $2.4 million NIH grant to develop novel inhalation therapeutics for resistant lung infections, which have established resistance to antimicrobial drugs and affect over 2.8 million individuals annually in the US, resulting in more than 35,000 deaths.
Researchers identify critical genes and transport systems in E. coli that enable rapid growth despite sterile urine environment. ABC transporters appear crucial for infection, with inhibitors potentially slowing bacterial growth and complementing antibiotic efforts.
Scientists identify crucial protein PicA in jumbo phages that selectively transport proteins to replicate inside bacteria. This discovery sheds light on the complex biological makeup and mechanisms within these mysterious viruses.
Researchers found that altering a male mouse's gut microbiota increases the probability of low birth weight and premature death in their offspring. The study suggests a 'gut-germline axis' exists, connecting the gut microbiota to the germline and potentially influencing inherited traits.
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 developed a ten-minute breath test to monitor antibiotic concentrations, offering a non-invasive alternative to traditional blood tests. The study found that exhaled breath samples can detect specific metabolites associated with antibiotics, paving the way for potential therapeutic drug monitoring.
Research found high levels of resistance to critically important antibiotics in uncooked meat, including chicken, lamb, beef, and pork. Uncooked dog food samples also showed similar resistance patterns.
A pilot study found that targeted gut-microbiota therapy improved symptoms in almost all patients with post-infection IBS, with 38.5% achieving total remission. The treatment involved a personalised blend of antibiotics, probiotics, and prebiotics tailored to each patient's unique microbiome.
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.
A Swedish study published in JAMA Network Open found that over one million newborns were given unnecessary antibiotics for suspected sepsis despite a reduction in sepsis cases. The researchers argue that the treatment burden is too high, suggesting potential to reduce antibiotic use.
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.
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 German study of over 1,300 hospitalised adults with moderate COVID-19 found that antibiotic treatment was associated with a five times greater likelihood of clinical deterioration. The researchers highlight the need for improved antibiotic stewardship interventions and rational use of antibiotics during viral pandemics.
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.
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 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.
The American College of Physicians recommends adding SGLT-2 and GLP-1 agonists to metformin in adults with Type 2 diabetes for improved cardiovascular outcomes. The guidelines prioritize shared decision-making, considering individual patient characteristics and values.
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 identified a novel class of antimicrobial toxins, dubbed umbrella toxins, produced by soil bacteria Streptomyces. These toxins are large protein complexes that specifically target other Streptomyces species, making them a promising lead in the fight against antibiotic resistance.
A large study found that antibiotics provided no measurable impact on cough severity or duration in patients with lower-respiratory tract infections. Advanced lab tests confirmed bacterial and viral infections, but treatment didn't affect resolution time.
Researchers evaluated different pig farming systems, finding that none performed well across all four areas: land use, greenhouse gas emissions, antibiotics use, and animal welfare. However, some individual farms did excel in all domains, highlighting the potential for trade-offs to be minimized.
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.
A systematic review and meta-analysis found that antibiotic prophylaxis is associated with a reduced risk of infective endocarditis in high-risk individuals following invasive dental procedures. However, its effectiveness in moderate-risk individuals is unclear.
Cold Spring Harbor Laboratory researchers developed Accelerated SuFEx Click Chemistry to create over 150 new molecular compounds, including derivatives of complex natural molecules. These compounds show promise as leads for developing antibiotics and cancer therapies.
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.
A new study published in Microbiology Spectrum shows that an enzymatic cocktail can effectively kill a variety of mycobacterial species, including those causing tuberculosis. The research delivers the enzymes inside host macrophages where mycobacteria grow, increasing efficacy and reducing toxicities associated with current treatments.
Researchers have developed a new antibiotic candidate, COE-PNH2, which demonstrates high efficacy against Mycobacterium abscessus and shows a blend of potency and safety. The molecule targets both replicating and dormant forms of the bacteria, exhibiting robust bactericidal activity and reducing the likelihood of relapse.
A study of 17,000 hospitalized adults found that inappropriate pneumonia diagnoses were common among older adults and those with dementia or altered mental status. Full-course antibiotic treatment for these patients may be detrimental to their health.
Researchers have developed an AI model called SyntheMol that can design new antibiotics against deadly bacteria like Acinetobacter baumannii. The model identified six potent antibacterial compounds with non-toxic properties, offering a potential solution to the global crisis of antibiotic resistance.
A team of scientists discovered new fusion sites in protein evolution that enable faster and more targeted drug development. By combining evolutionary processes with synthetic biology, they created customized biological drugs with improved therapeutic properties.
Researchers found that early antibiotic treatment accelerated recovery in COVID-19 patients. The study used a combination of antibiotics, including amoxicillin and rifaximin, within the first three days of infection. This treatment significantly reduced the risk of long-term COVID symptoms.
Researchers at MIT and University of Helsinki discovered a protein in human sweat that can protect against Lyme disease. A genetic variant of this protein is associated with increased susceptibility to the disease.
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.
A new trial demonstrates that non-allergy specialist healthcare professionals can safely assess and remove penicillin allergy labels in low-risk patients, with no serious hypersensitivity reactions reported. This approach has the potential to improve quality of clinical care and reduce antimicrobial resistance.
A new study by Uppsala University researchers demonstrates that heteroresistance, a common transient resistance in bacteria, can facilitate the development of antibiotic resistance. The study found that heteroresistant bacteria carrying more resistance gene copies result in slower growth and increased risk of treatment failure.