Articles tagged with Antibiotics
University of Florida researchers have developed a patent-pending method to improve antibiotic development, combining testing of various drug concentrations at the site of infection with laboratory analyses and mathematical models. This approach aims to reduce the lengthy and expensive trial-and-error process that can take years.
A randomized trial found that 3-day regimens of amoxicillin-clavulanate were less effective than ciprofloxacin in treating acute uncomplicated cystitis in women. Amoxicillin-clavulanate was also less effective among susceptible bacterial strains, highlighting the need for alternative treatments.
Despite advances in molecular biology, microbes have outpaced pharmaceutical companies in developing resistance to antibiotics. Dr. Julian Davies highlights over 300 known genes that confer resistance, and notes the need for a deeper understanding of microbial evolution.
A study led by Hopkins researchers found that providing packets of antibiotics or mailing medication directly to partners significantly reduced re-infections with gonorrhea and Chlamydia. The expedited approach resulted in a 68% decrease in re-infections with gonorrhea and an 18% decrease overall, when results for both diseases were co...
A study found significant variations in antibiotic use across European countries, with higher rates in southern and eastern regions. The research suggests that population-based studies are needed to understand the motivations behind antibiotic use and develop effective strategies to reduce resistance.
A novel sensor has been developed to measure tiny changes in cell volume, providing real-time results for antibiotic sensitivity testing. The technology, known as 'cell volume cytometry,' is highly sensitive and can detect changes in cell dimensions never seen before in living cells.
A new study found that a once-daily treatment of the antibiotic tobramycin is effective in treating cystic fibrosis patients, particularly in reducing kidney-related side effects. The trial recruited 219 patients and showed similar results in both children and adults.
Dr. Walsh will focus on his research on nonribosomal peptide synthetases, which biosynthesize a variety of biologically active peptides. He will discuss the molecular logic of enzymatic assembly lines and tailoring enzymes that modify the peptides.
A randomized controlled trial found that amoxicillin was more effective than placebo in treating middle ear infections in children, but showed no significant difference in adverse events or recurrence rates. The study suggests that antibiotics may be a useful treatment option for this common childhood illness.
A large multi-center clinical trial is planned to test the safety and efficacy of antibiotics in treating ALS. Daily injections of ceftriaxone delayed nerve damage and extended survival by 10 days in mice with a Lou Gehrig's disease model.
A recent study explores the issue of antibiotic misuse, finding that more than half of patients in the US are taking unnecessary antibiotics for colds and flu. The study aims to educate providers and patients on proper use of antibiotics, highlighting the risks of antibiotic-resistant bacteria.
Research suggests that changes in gut microflora can intensify immune reactions to common allergens, increasing the risk of chronic allergies or asthma. A mouse model study found that antibiotic treatment led to an overzealous allergic response in the lung.
A randomized trial involving over 650 participants found that OTC acne treatments were as effective as oral antibiotic tablets. Benzoyl peroxide was identified as the cheapest and most cost-effective treatment, with a significant difference in cost-effectiveness between regimens.
Evolutionary adaptation leads to permanent antibiotic resistance in fungi, making it difficult to prevent its spread. Researchers focus on reducing dependence on antibiotics to combat this growing issue.
Researchers developed a probability model to predict how many cases of anthrax could be prevented under varying conditions. The study found that antibiotics distributed within 6 days after exposure and taken for 60 days can prevent up to 70% of anthrax cases.
Scientists have identified a promising new antibiotic target in diphosphomevalonate (DPM), which can inhibit the virulence of Streptococcus pneumoniae and prevent its survival. This breakthrough could lead to the development of novel antibiotics to cure pneumonia and other streptococcal diseases.
A recent study published in Journal of Bacteriology has identified the HipA gene responsible for making persister cells resistant to antibiotics. Biofilm infections, which can cause fatal lung infections, periodontal disease, and other serious health issues, are notoriously difficult to treat.
Multidrug-resistant bacteria, including Enterococcus and staphylococci, were found airborne in concentrated swine operations. The study highlights the importance of environmental pathways in transmitting antibiotic-resistant bacteria from animals to humans.
Researchers at Johns Hopkins University have developed a new molecular switch that can transform bacteria into working sensors. The device, created using a novel fusion technique, shows promise for detecting cancer cells, releasing drugs, and monitoring chemical or biological agents.
A randomized trial found that daily doses of cheap antibiotic co-trimoxazole nearly halved the mortality rate compared to placebo among HIV-infected children in Zambia. The study suggests that all children with clinical features of HIV infection in Africa should receive co-trimoxazole prophylaxis, regardless of age or CD4 count.
A mathematical model suggests that antibiotic use in chickens can decrease the risk of food-borne illness while potentially increasing antibiotic-resistant bacteria, but the benefits outweigh the risks according to researchers.
A study of 2,279 patients found that hand washing was a key factor in preventing MRSA infections. Patients who received antibiotics were more likely to be infected with MRSA due to unclean hands among healthcare workers.
Researchers found no statistically significant increase in antimicrobial resistance among patients with CRS over time. In fact, many patients showed reversion to lesser degrees of resistance, suggesting a possible decrease in antimicrobial use and its impact on resistance patterns.
A new study identifies actinonin-based antibiotics as a potential treatment for cancer. Human mitochondrial peptide deformylase is found to be a key target in this approach, offering new avenues for cancer research and therapy.
Despite widespread concern about bioterrorism, only one in five patients who discussed anthrax with physicians received antibiotics or vaccines. Antibiotic prescription was most highly associated with patient requests and report of potential exposure.
Researchers at UCLA have discovered a new mechanism in bacteriophages that allows them to rapidly evolve new variants to target bacterial resistance. This discovery has the potential to create
The landmark PROVE IT-TIMI 22 trial found that a long-term regimen of antibiotics designed to kill Chlamydia pneumoniae does not reduce the risk of heart attacks or cardiovascular disease. Researchers recommend focusing on proven therapies like high-dose statin therapy and ACE inhibitors instead.
The Azithromycin and Coronary Events Study (ACES) found no reduction in cardiovascular events among participants treated with azithromycin. The study suggests that Chlamydia pneumoniae may not play a significant role in the late-stage development of coronary heart disease.
Researchers at Harvard Medical School have developed a method to generate potentially hundreds of aminocoumarin variants, which are inhibitors of bacterial type II topoisomerases. The approach uses bacterial enzymes to add different chemical moieties to the coumermycin A1 backbone, resulting in compounds with tailored properties.
The study found that USAMRIID's biosafety and medical management program effectively prevented laboratory-acquired infections, with only five confirmed cases in a fourteen-year period. The review emphasized the importance of vaccination and early evaluation of potential exposures.
A new model shows that antibiotic cycling, alternating between classes of antibiotics every few months, probably won't work in stopping the spread of hospital-acquired antibiotic resistance. Instead, a mixing approach, where patients receive different antibiotics randomly, may be more effective in reducing resistance levels.
Researchers at University of Texas found no benefit to restrictive diets for travelers with diarrhea, contrary to traditional advice. The study suggests that simple carbohydrates may aid in gut repair and symptom alleviation.
Researchers at The Burnham Institute have determined the crystal structure of the anthrax-cell binding complex, offering new leads for the discovery of antitoxins. This breakthrough also provides insights into using anthrax toxin as an anti-tumor agent, with potential applications in treating cancer.
Scientists visualize bacterial ribosome recycling factor (RRF) structure using three-dimensional cryo-electron microscope, shedding light on its role in protein synthesis. RRF is a promising target for designing new antibiotics as it differs between eukaryotes and prokaryotes.
Patients with diabetes, females over 70, or obesity are more likely to develop postoperative mediastinitis caused by methicillin-resistant S. aureus. Identifying these risk factors enables the design of preventive strategies.
Researchers found that antibiotics can alter the gut microbiome, leading to increased lung sensitivity to allergens. This disruption can trigger a hyperactive immune response, producing allergy symptoms or even asthma. The study suggests that maintaining a healthy balance of gut microbes is crucial in regulating the immune system.
Researchers found that antibiotic therapy can promote allergic airway responses in mice, particularly when Candida albicans colonization occurs. The study suggests a potential link between antibiotic use and human allergies.
A new study isolated a compound called dodecenal from fresh cilantro leaves, which is found in salsa, and showed it to be twice as potent as the antibiotic gentamicin at killing Salmonella. The researchers believe that eating more fresh salsa could help prevent foodborne illness.
A double-blinded trial with 270 children aged 2 months to 23 months found that zinc therapy reduced severe pneumonia symptoms and signs, and overall hospital stay. Zinc also showed promise in reducing antibiotic-resistant infections.
A team of chemists from the University of Wisconsin-Madison has identified a key enzyme essential for the bacteria that cause tuberculosis. Disrupting this enzyme could lead to the development of a new family of antibiotics, providing hope for millions of people affected by multidrug-resistant TB.
Despite a growing need for new antibiotics, only six are being developed out of 506 drugs, with FDA approvals declining by 56% over the past 20 years. Researchers have identified a novel structural signature in antimicrobial peptides that could accelerate development of new treatments.
Walsh's research on vancomycin resistance and bacterial synthesis has significant implications for future drug development. His work highlights the importance of understanding microbial virulence mechanisms to combat growing antibiotic-resistant threats.
Researchers developed an electronic nose device that analyzes exhaled gases to diagnose pneumonia and sinusitis, showing 92% and 70% accuracy in ICU patients respectively. The device has potential to radically change diagnosis and treatment of these conditions.
A 1999 outbreak of furunculosis in rural Alaska identified individuals with MRSA who received more antibiotics, highlighting a link between antibiotic use and increased risk of skin infections. The study found that Panton-Valentine leukocidin virulence factor was present in nearly all methicillin-resistant isolates.
Research reveals integrons in poultry litter generate clusters of varied antibiotic resistance genes, complicating efforts to control spread. The discovery has significant implications for farm animal operations, human health, and the development of new antibiotics.
Researchers found only six new antibiotics in R&D pipeline, a 56% decline since 1998. The lack of new antibiotics poses significant risks for patients and public health due to emerging drug-resistant bacteria.
A new study found that only 2% of patients who experienced an allergic-like event after the first penicillin prescription had another reaction, despite previous estimates suggesting a 60% rate. The researchers suggest that some patients labeled as penicillin-allergic can safely receive the antibiotic in emergency situations.
A study compared different clinical guidelines for diagnosing and treating sore throats, finding that the selective use of throat cultures can help reduce unnecessary antibiotic prescriptions. The researchers also found that children require throat culture confirmation to ensure optimal identification of GAS pharyngitis.
Players suffered from infections by Aeromonas hydrophila after playing in mud prepared with stagnant river water. Organizers advised precautions to protect players against infection, including using treated water and disinfectants.
Researchers developed a simple method for ultra trace determination of chlortetracycline and tylosin antibiotics in animal manures and surface/ground waters. Tests showed high concentrations of these antibiotics in swine manure samples, highlighting potential environmental pollution risks.
A study by Peter M. Houck and colleagues found that administering antibiotics within 4 hours of hospital arrival significantly reduces mortality rates among Medicare patients with pneumonia who haven't received prior treatment. The early antibiotic treatment also shortens hospital stays, with an average reduction of half a day.
SLC5A8 transporter enables the colon to absorb short-chain fatty acids, produced by bacteria fermenting plant cell walls, for energy. This finding supports eating vegetables to limit antibiotic use and promotes a healthy gut microbiome.
Providing cough and cold care kits to patients with upper respiratory illness or acute bronchitis significantly reduces unnecessary antibiotic use. The kits contain pain relievers, decongestant, and other over-the-counter medications to treat symptoms.
Researchers at Boston Children's Hospital found that minocycline reduces later-stage tissue loss by blocking mitochondrial cytochrome c release, potentially improving quality of life for those with spinal cord injuries. The study suggests a novel post-trauma strategy using a safe, FDA-approved drug.
A study by UT Southwestern Medical Center researchers found that draining a skin or soft-tissue abscess and packing the wound with gauze is an effective therapy for simple skin abscesses in children, potentially reducing the need for antibiotics. The treatment was shown to be effective even when treating methicillin-resistant Staphyloc...
A blood test measuring procalcitonin levels can guide antibiotic treatment for lower respiratory tract infections, reducing unnecessary use and promoting more targeted therapy. The study found that withholding antibiotics based on procalcitonin thresholds did not compromise health outcomes in patients with viral infections.
A study found that women who used more antibiotics had an increased risk of breast cancer. The researchers also found that all classes of antibiotics were associated with an increased risk, and that long-term use of antibiotics was linked to death due to breast cancer.
Researchers use computer models to simulate the spread of diseases and develop strategies for containment. The models help predict how many people should be vaccinated or treated with antibiotics, providing critical information for public health officials.
Researchers have developed a protective coating that prevents deadly post-operative infections from Pseudomonas aeruginosa, a virulent pathogen that kills 100% of untreated mice. The coating, which works by pleasing the bacteria and preventing them from invading the host's bloodstream, has shown promising results in animal studies.
Researchers have unraveled the complete genome sequence of Bdellovibrio bacteriovorus, a predatory bacterium that can degrade complex biopolymers in other bacteria. The study may lead to novel anti-microbial substances and the development of a 'living antibiotic' as a potential therapeutic agent.