Articles tagged with Antibiotics
Researchers discovered that bacteria like Burkholderia cenocepacia share small molecules to become resistant to antibiotics. This novel communication mechanism protects not only itself but also other susceptible bacteria.
Researchers discovered that antibiotics can cause oxidative stress, damaging human cells and leading to side effects. The team found two novel strategies: using bacteriostatic antibiotics or antioxidants like N-acetylcysteine to prevent or remediate oxidative stress.
A new study found that industrial livestock workers in North Carolina carry drug-resistant bacteria associated with livestock, including Staphylococcus aureus. The bacteria are resistant to multiple antibiotics and were more prevalent among workers exposed to industrial operations, which use antibiotics in animal feed and water.
A new class of antibiotic has been developed at the University of Adelaide, targeting a specific enzyme critical to bacterial metabolism. The compound, known as a protein inhibitor, binds to and inhibits biotin protein ligase, disrupting bacterial growth.
Researchers at Berkeley Lab have created an atomic-scale structure of a ribosome attached to a molecule that controls its motion, shedding light on how bacterial ribosomes work. This breakthrough could lead to the development of new antibiotics that target the specific weaknesses of bacterial ribosomes.
New research correlates oral ingestion of antibiotics with rapid rise in resistance. Alternative routes like injection may slow the spread of resistance genes. The study found that oral administration led to faster development of resistance in mice compared to injection.
Researchers at IRB Barcelona have successfully synthesized a marine compound, baringolin, which shows promising antibiotic activity at low concentrations. The team aims to improve its solubility and design more active analogues to develop a viable drug in the next 10 years.
Drusano's work in pharmacokinetic and pharmacodynamic modeling has been instrumental in simulating and validating dosing regimens to maximize the safety and efficacy of antibiotics. He is recognized for his groundbreaking research on anti-infective pharmacology and antimicrobial resistance.
Researchers have developed HIV-derived antibacterial compounds that target and disrupt bacterial membranes, showing powerful activity against clinically resistant bacteria. These engineered cationic antimicrobial peptides (eCAPs) may also be applicable to treatment of other respiratory infections and biodefense applications.
Scientists at Harvard University's Wyss Institute have found that low doses of silver can boost the efficacy of widely used antibiotics and make previously lethal bacteria sensitive again. This discovery holds promise for treating stubborn infections and developing new therapies against antibiotic-resistant infections.
Researchers found that an antibiotic can trigger its own production, increasing levels by dramatically. This breakthrough could enable faster and more cost-effective production of antibiotics.
Researchers from the University of Toronto have created an electronic chip that can analyze samples for panels of infectious bacteria in a matter of minutes. The technology can identify multiple pathogens and determine antibiotic resistance, addressing the urgent need for rapid diagnosis.
Researchers discover gut viruses confer antibiotic resistance to bacteria by transferring genes that help them withstand multiple antibiotics, raising concerns about the emergence of superbugs and the need for a new approach to mitigate development of antibiotic resistance
A study by St. Michael's Hospital found that patients taking probiotics with antibiotics experienced a significant reduction in antibiotic-associated diarrhea and C. difficle infection. This is likely due to the powerful effects of probiotics on population digestive tracts and immune systems.
Research suggests that 70% of women with uncomplicated urinary tract infections improve within a week without antibiotic treatment. The study's findings indicate that women may be more willing to delay antibiotic use than expected, highlighting the potential benefits of alternative treatments.
Researchers found that disrupting a mechanism in mitochondria using simple antibiotics can multiply lifespan by a factor of 1.6 in worms. The study suggests that reducing protein production in these organelles may lead to increased longevity. Further studies are needed to confirm the findings in mammals.
A study found that colistin resistance in bacteria also makes them resistant to the human immune system's defense mechanisms, such as LL-37 and lysozyme. This cross-resistance increases the risk of complications for patients with life-threatening multi-drug resistant infections.
Researchers have developed a solar-powered nano filter that can remove harmful antibiotics and carcinogens from groundwater at a significantly higher rate than traditional activated carbon filters. The new filter uses two bacterial proteins to absorb 64% of antibiotics, offering an eco-friendly solution to combat antibiotic resistance.
Researchers have discovered that thioridazine, a drug previously used to treat schizophrenia, works against antibiotic-resistant bacteria by removing glycine from the cell wall. This interaction enables antibiotics to attack and kill the weakened bacteria, paving the way for new treatments.
A study demonstrated that an antibiotic stewardship program using Bruker's MALDI Biotyper analyzer reduced average length of stay by two days and overall costs by almost $20,000 per patient. The program improved patient care through rapid pathogen identification and accurate antimicrobial susceptibility testing.
A study found that antibiotics are frequently prescribed for acute rhinosinusitis in the US, especially among younger adults and primary care patients. The study highlights the need to promote clinical practice guidelines to reduce unnecessary antibiotic use.
The lab-on-a-chip (LOC) is a low-cost, microfluidic device that can quickly diagnose bacterial infections and recommend antibiotics for infantile diarrhea. The device's portability and affordability make it an attractive solution for remote areas with limited access to healthcare.
Scientists have developed solar-powered nanofilters that can pump in antibiotics to clean contaminated water, removing them twice as efficiently as existing technology. This innovation could also be adapted to remove other pollutants like hormones and heavy metals from water.
Researchers at University at Buffalo have found a breast milk protein complex, HAMLET, that can help restore sensitivity to antibiotics in drug-resistant bacteria. The study showed that HAMLET can lower the dose of antibiotics needed by a factor of eight or more, making it a promising treatment option for superbugs like MRSA.
Researchers have gained a clearer insight into how protein components work together to transport antibiotics from cells, which could aid the development of 'pump blockers' to combat antibiotic resistance.
Scientists have developed a new family of selective antimicrobial agents that use synthetic colloid particles to recognize and inactivate specific types of bacteria. These 'colloid antibodies' show promise as a powerful tool against antibiotic-resistant bacteria.
Antibiotic overuse and misuse are creating conditions for the emergence of superbugs in border communities like Eagle Pass, Texas. Collaborating with officials to develop an outreach model to mitigate antimicrobial resistance, scientist Subburaj Kannan emphasizes the need for government action and public awareness.
Researchers develop a solar-powered nano filter that can remove 64% of antibiotics from surface waters, compared to 40% by traditional filters. The new filter uses light-driven bacterial proteins to power the absorption process and allows for antibiotic recycling.
The U.S. Food and Drug Administration has approved only one new antibiotic since the Infectious Diseases Society of America launched its 10 x '20 Initiative in 2010. Despite this, only seven new drugs are in development to treat infections caused by multidrug-resistant gram-negative bacilli bacteria.
Outpatient antibiotic use poses similar but sometimes more severe resistance risks as hospital cases, new study reveals. More than half of outpatient antibiotics for acute respiratory infections are unnecessary, accelerating bacterial resistance.
Researchers developed Epimorex to target bacterial weaknesses exploited by viruses that attack them. In mice, Epimorex protected against anthrax and killed MRSA with no evidence of resistance.
A study found that azithromycin improved symptoms and lung function in patients with non-cystic fibrosis bronchiectasis, but at the cost of increased antibiotic resistance. The treatment also raised gastrointestinal side effects.
A clinical isolate of E. coli resistant to carbapenems has been studied, revealing four genetic mutations that enable the bacteria to survive and multiply despite the presence of antibiotics. These mutations involve changes to membrane proteins, regulatory proteins, and a multidrug efflux pump.
A study published in The BMJ found that long-term use of clarithromycin, a commonly used antibiotic for lower respiratory tract infections, may be associated with an increased risk of heart problems. The research, which analyzed data from over 1,300 patients, suggests that there will be an additional cardiovascular event for every eigh...
A longitudinal cohort study of 1,310 women found that even three years after being declared free of cancer, women who had a false-positive result consistently reported greater negative psychosocial consequences compared to women with normal test findings. Researchers propose annual blood pressure screening instead of checking at every ...
Researchers predict that drug-resistant MRSA strains will coexist in both hospital and community settings, with hospital strains surviving due to aggressive antibiotic usage patterns. This finding is reassuring as it suggests that the more invasive community strains will not replace hospital strains.
A new study suggests that flagellin plays a crucial role in activating the body's natural defenses against urinary tract infections (UTIs). The research found that motile Escherichia coli isolates activate NF-κB signaling pathways, indicating a key role for flagellin in up-regulating host innate defences.
A new study published in Infection Control and Hospital Epidemiology highlights the need to improve antibiotic use in outpatient dialysis facilities. Nearly one-third of antibiotic prescriptions were classified as inappropriate, with blood-stream infections being the most common misdiagnosed infection based on unmet criteria.
The UK's Antimicrobial Resistance Strategy and Action Plan aims to address the growing concern of antibiotic resistance. The strategy highlights the need for a change in understanding and response to antimicrobial resistance.
A recent study challenged the long-held understanding of how antibiotics work, finding that all antibiotics induce bacterial cells to make compounds called reactive oxygen species, making bacteria susceptible. The results contradict previous findings and suggest a need to re-evaluate the mechanisms of antibiotic action.
A rapid laboratory test for pregnant women to detect Group B strep has been developed and is highly valid, identifying GBS colonization in six and a half hours. This new test could help reduce the overuse of resources and minimize bacterial resistance by targeting patients with threatened preterm labor.
A University of Granada researcher proposes that antibiotic abuse forces bacteria to take up DNA from resistant strains, leading to increased resistance. This stress-induced uptake can also make non-resistant bacteria more virulent, exacerbating the problem.
A study published in Neurosurgery found that patients undergoing cerebral angiography and neurointerventional procedures are at a very low risk of infection, even without preventive antibiotics. The authors suggest that the minimally invasive nature and short duration of these procedures may contribute to this low risk.
New research reveals that antibiotic-resistant Staph bacteria exhibit a seasonal pattern, with community-associated strains more likely to infect children during the summer months. In contrast, healthcare-associated strains are more prevalent among seniors during the winter months.
Research found that stressed bacteria can spontaneously develop resistance to rifampicin, a commonly used antibiotic. This discovery has significant implications for the evolution of antibiotic resistance and may impact treatment options for serious bacterial infections such as tuberculosis and leprosy.
Global antibiotic misuse threatens human health more than the war on illegal drugs. Dr Jonny Anomaly advocates for redirecting funds to curb excessive prescribing and promoting collective action.
A new antibiotic, tedizolid phosphate, has been shown to be effective in treating skin infections with a shorter course than traditional treatments. The study found that the new antibiotic was noninferior to linezolid in both early and sustained clinical responses.
A study found 149 unique antibiotic-resistant genes on Chinese commercial pig farms, with levels 192-28,000 times higher than controls. Daily exposure to antibiotics allows microbes carrying these genes to thrive, posing a potential global risk to human health.
A new investigational antibiotic cream has demonstrated a high cure rate of 81% for cutaneous leishmaniasis, with only minor reactions reported. The treatment offers a safe and effective option for patients, potentially replacing toxic and painful treatments.
Researchers at Harvard's Wyss Institute used sophisticated computer modeling and biotechnology to target ROS production in E. coli, rendering the bacteria more susceptible to existing antibiotics. The study provides a promising approach to boost the global antibiotic arsenal against deadly superbugs like tuberculosis.
Researchers developed an automated device called morbidostat to track the evolution of antibiotic resistance at the genetic level. The team identified key genes involved in creating drug-resistant states and documented real-time changes in genes that gave bacteria an advantage in evolving to outwit antibiotics.
Researchers found a 44% drop in mortality with cefdinir and a 36% drop with amoxicillin when antibiotics were added to therapeutic food treatment. This study has changed how children are treated worldwide, providing a lifesaving impact on hundreds of thousands of children annually.
Researchers discovered that blue light can selectively eradicate Pseudomonas aeruginosa infections of the skin and soft tissues, while preserving the outermost layer. This breakthrough could provide a potential non-toxic approach to treating resistant bacterial infections.
A synthetic corkscrew peptide has been shown to kill antibiotic-resistant Gram-negative bacteria by dissolving their double-layered membranes. The peptide, KLAKLAKKLAKLAK, was effective against a variety of strains of E. coli, A. baumanii, and P. aeruginosa, including multi-drug resistant strains.
Infectious disease experts call for novel approaches to end the growing scourge of 'superbugs,' citing 2 million annual infections and 100,000 deaths. The authors recommend new strategies to prevent infections, encourage economic investment in anti-infective treatments, and alter host-microbe interactions.
A new study found high levels of antibiotic resistance in ornamental fish, with some species showing up to 77% resistance to certain antibiotics. The risk to humans is generally minor, but transmission from tropical fish has been documented and poses a concern for those with compromised immune systems.
The Children's Hospital of Philadelphia has been awarded a $2 million grant from the Patient-Centered Outcomes Research Institute to study the effectiveness of different antibiotic treatment options for children returning home after hospitalization. The research aims to inform healthcare decisions and improve patient outcomes.
Researchers have discovered a method to induce sexual reproduction in Penicillium chrysogenum, leading to the development of new strains with improved industrial characteristics. This breakthrough aims to increase penicillin production, making it cheaper to produce, and potentially applicable to other economically important fungi.
A compound from the South African toothbrush tree has been shown to effectively treat tuberculosis by binding to a novel site on DNA gyrase, an enzyme essential for bacterial growth. This discovery offers hope for developing new antibiotics to combat drug-resistant strains of TB.
A new study found that unnecessary antibiotics increase the risk of recurrence of deadly Clostridium difficile infections. Researchers reviewed patient cases and found that 77% of patients received at least one dose of unnecessary antibiotic, leading to a substantial increased risk of recurrence.