Articles tagged with Antibiotics
A new study found that behavioral interventions, such as peer comparison and accountable justification, significantly reduced unnecessary antibiotic prescriptions for acute respiratory infections. The study built upon prior research and resulted in a 16 percentage point reduction in prescription rates.
Exposure to specific antibiotics is linked to the development of antibiotic-resistant C. difficile , one of the fastest growing bacteria superbugs. The study found that fluoroquinolone and macrolide exposure was more frequent in patients with a highly resistant strain, supporting targeted antibiotic stewardship monitoring programs.
Researchers at Princeton University discovered the mode of action of antibiotic tropodithietic acid (TDA), revealing its ability to kill cancer cells. TDA's unique mechanism involves disrupting cell membrane function, rendering it a potential anticancer agent.
A new study suggests that routine antibiotics do not increase the likelihood of nutritional recovery in uncomplicated cases of severe acute malnutrition. Reducing antibiotic use would be prudent given global concern over antibiotic resistance.
Researchers found that adding azithromycin to standard antibiotics reduced post-C-section delivery infections and severe adverse events in high-risk women. The study used a multicenter double-blind randomized controlled trial involving over 17,000 women.
A new review suggests that targeted antibiotic therapy before prostate biopsy may lower sepsis rates. The study found 27 men need to receive antibiotics to prevent one infection, paving the way for safer procedures.
Bacteria use specific mechanisms to avoid toxic substances like antibiotics during colonization, driven by the action of flagella and chemoreceptors. The discovery reveals a crucial molecular balance between RecA and CheW proteins that enables bacteria to stop swarming movement in areas with high antibiotic concentrations.
The study found that antibiotic use in early childhood alters the composition of intestinal microbiota, reducing biodiversity and affecting age-driven development. Macrolide antibiotics were particularly associated with changes in microbiota features linked to obesity and metabolic diseases.
A team of biologists at UC San Diego has developed a new method to determine if bacteria are susceptible to antibiotics within a few hours. The approach allows doctors to rapidly identify the appropriate treatment for patients with life-threatening bacterial infections, potentially slowing the emergence of drug resistance.
Researchers at Duke University Medical Center have developed a gene signature test that accurately determines whether a respiratory illness is caused by infection from a virus or bacteria. The test shows high accuracy in classifying patients with flu viruses and other common infections.
The American College of Physicians (ACP) and Centers for Disease Control and Prevention (CDC) issued advice for prescribing antibiotics for acute respiratory tract infections in adults. Inappropriate antibiotic use contributes to antibiotic-resistant infections, posing a public health threat. Guidelines recommend symptomatic therapy fo...
The American College of Physicians (ACP) and Centers for Disease Control and Prevention (CDC) issue advice on prescribing antibiotics for acute respiratory tract infections, citing unnecessary use that can lead to $3 billion in excess costs. The guidelines recommend reserving antibiotics for serious illnesses only.
Researchers at the University of Vermont discovered a new strategy for bacteria to become resistant to antibiotics by adopting an 'all-for-one' approach. This allows individual cells to assume high levels of resistance while others avoid extra work, enabling colonies to hedge their bets and persist in infections like cystic fibrosis.
McGill researchers have taken 3D images of a large section from a medicine-synthesizing enzyme in action. The images reveal the intricate way these proteins function and could lead to the development of new antibiotics. This breakthrough may bring scientists closer to understanding how many antibiotics are made.
Researchers have discovered that lasers can improve the penetration of antibiotic treatments into citrus leaves, potentially offering a new approach to treating the deadly citrus greening disease. The method uses laser etching to create microscopic indentations in the leaf tissue, allowing for more effective delivery of substances.
Researchers have discovered that Bacillus cereus can form small colony variants in response to aminoglycoside antibiotics, making it resistant to these therapies. This alternative lifestyle allows the bacteria to survive harsh conditions and evade traditional diagnostic methods.
A new study by UGA ecologist J. Vaun McArthur reveals high levels of antibiotic resistance in streams near the Savannah River Site due to environmental contaminants like metals. The contaminated streams have no known input from antibiotics and show that industrial legacy waste can contribute to antibiotic resistance.
Researchers discover FDA-approved medications with dual-action against bacterial energy production and specific enzymes, potentially reducing resistance. Such multitarget drugs could treat a range of infections, including tuberculosis and Staphylococcus aureus.
Researchers discovered a unique antibiotic molecule that triggers a bacteria's adaptation strategy, enabling it to resist the drug. The resistant bacteria undergoes morphological changes and can move away from the antibiotic, allowing it to survive and spread.
Researchers at Rice University have developed time-released gel-filled implants that deliver antibiotics to the face, reducing the risk of infection during facial reconstruction. The innovative material protects tissue from bacterial invasion for several weeks.
A study published in JAMA Surgery found that nonoperative management with antibiotics was an effective treatment strategy for children with uncomplicated appendicitis, resulting in fewer disability days and lower healthcare costs. The study also showed no difference in health-related quality of life at one year.
A new study from Nationwide Children's Hospital found that antibiotics alone can be a safe and effective treatment for children with uncomplicated acute appendicitis. The non-operative management was associated with less recovery time, lower health costs, and no difference in complications at one year.
A four-year study found that uninsured patients who self-administered long-term IV antibiotics had a 47% lower rate of 30-day readmission rates and similar mortality rates compared to those with insurance. The practice saves hospitals millions of dollars and allows patients to return to their normal lives.
Researchers use antibiotic resistance to identify chemicals blocking amyloid formation, providing a new approach to combat these intractable diseases. The study identifies a chemical that blocks amyloid deposits forming from sequences associated with type II diabetes.
A new method developed by UC San Diego biologists can quickly identify and characterize compounds capable of controlling antibiotic-resistant bacteria in natural product extracts. This breakthrough could shave years off screening efforts and lead to the discovery of new antibiotics, addressing a growing global crisis.
Children with childhood leukemia benefit from prophylactic antibiotics, reducing serious bacterial infections during the first month of treatment by approximately 60 percent. The use of antibacterial prophylaxis appears to have made a profound difference for patients.
A new study by King's College London found that reduced antibiotic prescribing is associated with lower GP satisfaction scores. The study, which analyzed records from 7,800 general practices, found a 25% lower rate of antibiotic prescribing corresponded to a 5-6 point reduction in GP satisfaction rankings.
A new study suggests that antibiotic use during the third trimester of pregnancy is associated with an increased risk of childhood wheeze. However, when confounding factors such as maternal infections and respiratory conditions are accounted for, the link between antibiotic use and childhood wheeze becomes less clear.
Researchers at Georgia State University developed novel antimicrobials targeting SecA, a key disease-causing component of bacteria. The study found that these inhibitors can overcome drug resistance and reduce toxin secretion, offering a promising alternative to existing antibiotics for treating MRSA infections.
A computer model of tuberculosis has shown that daily antibiotic regimens are more effective than once or twice a week in preventing drug-resistant strains. The study suggests that increasing the number of doses and improving drug properties can lead to significant improvements in treatment success rates.
Researchers found that giving common antibiotic azithromycin at the first sign of cold symptoms can reduce the risk of severe lower respiratory tract illness in children. The study tested azithromycin against placebo in 607 children and showed a significant difference in the severity of infections between the two groups.
The Centers for Disease Control and Prevention (CDC) emphasizes the importance of antibiotic stewardship in reducing Clostridium difficile infection rates. Key components include careful prescribing, early diagnosis, isolation of infected patients, and adequate cleaning of the patient care environment.
A new study promoted better prescribing practices for urinary tract infections (UTIs), but unexpectedly saw an increase in antibiotic prescriptions. Patients were twice as likely to receive a first-line antibiotic, with nitrofurantoin being the preferred option.
Researchers have gained a deeper understanding of the biosynthesis process, enabling them to manipulate nature's machinery to produce more effective compounds. This knowledge will help scientists engineer enzymes to create new treatments for diseases.
A pre-clinical study reveals that treatment with first-line antibiotics can make MRSA skin infections worse by inducing a harmful inflammatory response. Newer tests are being developed to quickly diagnose and treat these infections, but caution is needed before extending the findings to humans.
Researchers at Cedars-Sinai Medical Center found that certain antibiotics used to treat MRSA can worsen the infection in mice. The study suggests that these antibiotics may induce inflammation and damage tissues, making patients sicker.
A meta-analysis of 33 studies involving over 20 million patients found a statistically significant increased risk of sudden cardiac death and ventricular tachyarrhythmias associated with macrolide antibiotics. Macrolides were also linked to an increased risk of cardiovascular death, especially with clarithromycin.
Researchers created a synthetic model of E. coli's outer membrane, providing unprecedented access to its structure and dynamics. The model was used to test how antibiotic molecules can cross the critical barrier, which is highly impermeable to incoming molecules.
A study by American College of Allergy, Asthma, and Immunology (ACAAI) found that patients who were told they had a penicillin allergy but tested negative could safely take the drug. Researchers examined records of 15 patients who received intravenous penicillin without adverse reactions.
Recent gonorrhea susceptibility trends indicate a worsening of susceptibility to third-generation cephalosporin antibiotics, particularly cefixime. The CDC's Gonococcal Isolate Surveillance Project found that the percentage of resistant isolates increased from 0.1% in 2006 to 0.8% in 2014.
A literature review suggests that spontaneous knee effusion, also known as 'water on the knee,' can be an early symptom of Lyme disease, which can progress to more severe symptoms if left untreated. Early diagnosis and antibiotic treatment are crucial in preventing long-term damage.
Researchers found that patients were left on ineffective antibiotics for too long before receiving potent therapy, such as isotretinoin. The study highlights the dangers of antibiotic resistance and the need for early switching to more effective treatments.
A comprehensive review of 135,000 pregnancies found that two most commonly prescribed macrolides have no adverse effects on child's physical development. The study used data from Quebec Pregnancy Cohort and failed to find any meaningful association between macrolide use and major congenital malformations.
A recent study published in PNAS has shed light on the mechanism of action of HigB, a bacterial toxin that contributes to antibiotic resistance. The researchers found that HigB selectively degrades specific mRNAs, leading to the formation of persister cells that are tolerant to antibiotics.
A new study finds that antibiotics create conditions for bacterial demise by stressing their metabolism, leading to oxidative stress that breaks down DNA and other key molecules. This understanding could lead to more effective treatments for patients fighting infections.
A new study suggests that antibiotic use during childhood can lead to faster weight gain and higher body mass index (BMI) over time. The research analyzed data from over 163,000 children and found that those who received antibiotics multiple times weighed about three pounds more than those who did not.
A nationwide study found a significant increase in CRE infections among US children aged 1-5, with rates rising from 0% to 4.5% between 1999 and 2012. The greatest increase was seen in intensive care units, where isolates of CRE in the bloodstream increased from zero to 3.2% during the study period.
Researchers at Newcastle University have created a synthetic model of the bacterial outer membrane, providing unprecedented access to its structure and dynamics. The model allows for the testing of antibiotic molecules and has the potential to overcome resistance in Gram-negative bacteria, such as E. coli.
Faecal transplants have shown an 85% success rate in treating severe infections like C difficile, outperforming standard antibiotic treatment. However, experts warn of potential risks and call for proper screening of donors, long-term trials, and monitoring to ensure safe and effective use.
Researchers at the University of York have developed novel genetic engineering tools to manipulate genes required for antibiotic biosynthesis, enabling scientists to create new antibiotics. The technique has the potential to unlock the antibiotic potential of a significantly larger number of biosynthetic pathways than traditional methods.
Researchers report that up to half of surgical site infections and over a quarter of infections after cancer chemotherapy are caused by resistant bacteria. The study predicts that reducing antibiotic efficacy could lead to 120,000 more infections and 6,300 infection-related deaths annually in the USA.
UCSF scientists call on hospitals to oppose the overuse of antibiotics in animal agriculture, citing concerns about human health and the spread of antibiotic resistance. Experts say switching to antibiotic-free meat could create a market and drive down prices.
Hospitalized children are three times less likely to contract C. diff after implementing antibiotic stewardship programs, which also result in significant cost savings. The programs involve reviewing antibiotic use and providing feedback to physicians, leading to a more than three-fold reduction in C. diff rates.
Researchers discovered that approximately 70% of different antibiotic sequences lead to resistance, highlighting the importance of careful ordering. The approach may help prevent antibiotic-resistant bacteria and could be tested in laboratory trials.
A commentary published in CMAJ argues that prescribing antibiotics after joint surgery has little evidence to support it. Research suggests that bone cement impregnated with antibiotics is a more effective practice, but its use is not widespread.
Researchers compared clinical outcomes between patients receiving nafcillin and cefazolin for MSSA bacteremia, finding that cefazolin had similar treatment failure rates but fewer adverse events. The study suggests that cefazolin may be a cost-effective alternative to nafcillin due to lower costs.
Researchers developed a DNA sequencing device that can detect bacteria and antibiotic resistance in urine samples four times faster than traditional methods. The new method allows for quicker treatment and better stewardship of diminishing antibiotic reserves.
Research found that depleting the microbiome with antibiotics can reduce neutrophil activity in sickle cell disease, preventing acute crises and reducing organ damage. The study also suggests antibiotics may help treat septic shock by eliminating pro-inflammatory neutrophils.
Researchers have developed a combination of three antibiotics that can effectively treat methicillin-resistant Staphylococcus aureus (MRSA) infections in test tubes and laboratory mice. The synergistic action of the drugs prevents MRSA from developing resistance, offering potential treatment against this deadly pathogen.
Researchers at the University of Illinois have successfully isolated 19 unique phosphonate natural products, including those with antibiotic properties, using genome mining. The discovery could potentially lead to new treatments for diseases such as malaria and other bacterial infections.