Articles tagged with Bacterial Infections
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New research reveals light-activated nanoparticles can re-potentiate existing antibiotics for certain clinical isolate infections. The nanoparticles release superoxide, making bacteria more susceptible to the original antibiotic and reducing effective resistance by a factor of 1,000.
A new study suggests that integrated sepsis screening and treatment protocols can increase the use of broad-spectrum antibiotics, leading to higher healthcare facility-onset C. difficile infection (CDI) rates. Researchers found an increased rate of HCFO CDI during and following sepsis care bundle implementation.
Brandon Cooper, a new University of Montana faculty member, has received a $1.8 million grant from the National Institutes of Health to investigate the effects of Wolbachia bacteria on insect physiology and fitness. The study aims to understand how these bacteria spread within and between host species.
Researchers found that statin users have a 27% lower risk of Staphylococcus aureus bloodstream infections outside hospitals, with increased dosage offering greater protection. The study suggests that statins may play an important role in preventing serious blood infections, particularly among elderly patients with chronic conditions.
In a new study, researchers led by Igor E. Brodsky identified a mechanism that allows host cells to overcome the strategies used by pathogens like Yersinia bacteria to evade the immune system. By understanding this 'back-up alarm' system, scientists may be able to develop new therapies to target tumor cells and promote their demise.
Research led by Washington University School of Medicine finds that prescribing antibiotics in addition to lancing and draining staph-infected areas reduces the risk of recurrent infections. Clindamycin was found to be more effective at eliminating staph colonization than other antibiotics.
A study found that women with a specific strain of Lactobacillus iners had an increased risk of chlamydia infection. The researchers suggest that specific signatures of vaginal microbiota may indicate increased susceptibility to acquiring STIs.
Researchers found that catheterization potentiates MRSA infection by inducing an inflammatory response and releasing the fibrinogen protein. This results in the facilitation of targeted treatments for MRSA CAUTI.
Researchers at the University of Maryland discovered two group A Streptococcus genes, scfA and scfB, involved in invasive skin infections. These genes may serve as promising clinical targets for therapeutics.
A study published in Hospital Pediatrics found that many medical residents deviate from guidelines when prescribing antibiotics, highlighting the need for education and training. The research suggests that residents can be effective 'first line of defense' against antibiotic resistance if they follow best practices.
Researchers at NIST create a rapid test that senses mechanical fluctuations of bacterial cells and detects response to antibiotics, potentially hastening effective medical treatment and limiting drug-resistant bacteria. The new technique can quickly determine whether an antibiotic combats a given infection.
A high-manganese diet makes mice susceptible to staph heart infection, inactivating their innate immune system's reactive oxygen burst. This discovery adds to evidence that diet influences infection risk and suggests people with excess tissue manganese may be at higher risk for staph infection of the heart.
A new study by Cedars-Sinai investigators reveals how staph bacteria trick the body's immune system, allowing repeated infections throughout life. The study sheds light on how to develop an effective vaccine harnessing T cells to combat the superbug MRSA.
A study by Oregon State University and the Oregon Health Authority identified 21 cases of extensively drug-resistant Acinetobacter baumannii, a rare gene responsible for antibiotic resistance. Effective communication between facilities can prevent transmission and ensure appropriate contact precautions are taken.
Researchers identified levofloxacin as an effective antibiotic to prevent infections in children with acute lymphoblastic leukemia, reducing fever and bloodstream infections by 70%. The study found no increase in antibiotic resistance despite greater use of levofloxacin.
Researchers found that 40% of nursing home patients had multiple multidrug-resistant organisms living on their bodies, increasing the risk of urinary tract infections. The study suggests a complex network of interactions among bacteria and antibiotics, highlighting the need for more targeted treatment approaches.
A team of researchers led by Konstantin Usachev is developing new antibiotics to combat the deadly Staphylococcus aureus bacteria. The project aims to identify specific targets for these drugs using 3D visualization and computational analysis.
A study of 1.5 million children found that those with asthma were 1.6 times more likely to be prescribed antibiotics than those without asthma. This could be due to mistaken asthma symptoms for a bacterial infection or preventative use, despite guidelines against it.
Researchers at the University of Pennsylvania School of Medicine have identified amino acids that activate sweet taste receptors, which can block the release of antimicrobial peptides and kill bacteria. This new understanding could lead to new treatments for chronic sinus infections, affecting nearly 35 million Americans annually.
Researchers discovered that Legionella pneumophila targets mitochondria to alter cellular metabolism, favouring bacterial replication. This strategy is crucial for the bacterium's survival and causes disease.
Researchers engineered antimicrobial agents from a bacteria that targets specific strains, making them harmless. The new treatment could prevent or cure C. difficile infection, which kills thousands worldwide.
A study published in The Journal of Biological Chemistry reveals that bacterial toxins from E. coli can cause urinary tract infections with a different mechanism than pertussis toxin, which causes whooping cough. Understanding this diversity may help improve existing vaccines and create new ones.
Research by American University neuroscience Professor Colin Saldanha shows that estrogen synthesis in the brains of zebra finches can fight off neuroinflammation caused by infection. This finding reveals clues about the interplay between the body's neuroendocrine and immune systems.
A study published in Infection Control & Hospital Epidemiology found that antimicrobial fabrics on nurses' scrubs do not prevent bacterial contamination. The researchers identified Staphylococcus aureus as the most commonly transmitted pathogen, emphasizing the need for improved cleaning protocols and hand hygiene practices.
Scientists at Trinity College Dublin have discovered how tuberculosis hijacks the immune system in human lungs, enabling it to establish an infection. The research found that TB bacteria produce a protein attracting white blood cells, which become infected and fuel uncontrolled bacterial growth and inflammation.
Researchers identify MARCO as a key adenovirus receptor on macrophage cells, enabling viral invasion and triggering an inflammatory response. This discovery has implications for gene therapy and the development of medications to block the receptor
Recent research reveals that bacterial infections activate hematopoietic stem cells in the bone marrow, inducing proliferation but also causing stress and reduced ability to produce blood. This finding suggests a link between bacterial infections and dysregulated hematopoiesis, highlighting potential prevention methods for blood diseases.
A team of researchers found a new quorum-sensing molecule that increases the virulence of P. aeruginosa by activating RhlR independently of C4-HSL. This discovery offers potential for developing novel antimicrobial drugs to treat serious infections caused by this bacterium.
Staphylococcus aureus, a common bacteria causing severe infections, has developed mechanisms to evade the human immune system. Researchers have identified various tactics used by S. aureus to slow down neutrophil migration, impede priming, and even kill neutrophils. Understanding these strategies can lead to new therapeutic approaches.
Researchers have discovered that certain sugars in breast milk can act as anti-biofilm agents, helping prevent GBS infection in infants. The study suggests these sugars could potentially become part of an antibacterial treatment for infants or adults.
Researchers at Vanderbilt University have discovered that sugars in human milk possess antibacterial properties and can enhance the effectiveness of proteins, making them a potential new source of antimicrobial agents. The study found that these compounds can kill bacteria directly or break down biofilms to protect themselves.
Researchers have found that Helicobacter pylori infection increases stem cell turnover in the stomach, leading to increased cell division and cancer risk. The bacteria sends a signal to stem cells, putting them into overdrive, which may explain why chronic infections with H. pylori are linked to stomach cancer.
Researchers found that peroxisomes are essential for cells to detect and destroy bacterial infections, releasing signals to other organs. This discovery highlights the organelle's role in innate immunity and could inform strategies to combat bacterial infections.
A new study reveals that manipulating bacterial communication can help the body defeat an infection without causing drug-resistant strains. By targeting the dormancy-signal molecule, researchers hope to develop molecules that can disrupt specific bacteria's language, reducing resistance development.
Researchers found that healthy flies are attracted to the smell of infected ones, which produces more sex pheromones. This leads to increased dispersal of disease among fly populations.
Researchers found that neutrophils lose oxygen-sensing protein, leading to overactive response to infection and chronic inflammation. Studying glucose regulation in neutrophils may lead to new treatments for patients with low oxygen levels and lung disease.
A new study by CU Boulder researchers found that individual bacteria cells can feel their external environment through electrical signals, similar to vertebrates. This discovery could advance fundamental bacteria research and aid in developing drugs for infectious diseases.
A study found that a next-generation probiotic, Lactobacillus reuteri, produces an antibacterial compound that selectively kills C. difficile. This could lead to a preventative strategy for reducing the risk of C. difficile infections in patients taking antibiotics.
Researchers have improved the properties of an AMP from a spider, making it more effective against bacteria and cancer cells. The modified peptide was found to be 10 times better at killing most bacteria than the previous cyclic form, while also selectively targeting certain types of cancer cells.
Research provides molecular blueprints for bacterial enzymes, enabling targeted drug development. Key differences between bacterial and human enzymes offer a potential solution to antibiotic resistance.
Researchers at Uppsala University have developed a new method for rapidly determining bacterial resistance patterns in urinary tract infections, reducing the time from days to minutes.
A new study reveals the dynamic assembly of the export gate complex in bacterial flagellum and injectisome. The research identifies FliO as a scaffold protein essential for assembly, providing candidate targets for experimental drugs.
Researchers used DNA sequencing to identify patients at risk of death from MRSA infections, predicting survival chances with high accuracy. The study found that different strains of MRSA kill patients in distinct ways, shedding light on the pathogen's deadly mechanisms.
Researchers have discovered a new antibiotic, closthioamide, effective against 146 of 149 gonorrhea samples tested in the lab. The antibiotic showed promise against resistant strains and could be a crucial step in fighting drug-resistant infections.
A study published in mSphere reveals that three Klebsiella species can cause severe infections in hospital patients, with all three sharing genes that confer resistance to commonly used antibiotics. This finding expands the understanding of Klebsiella infections and highlights the need for new treatments.
A University of Bristol team has developed a new portable device to help doctors select the right antibiotic for a patient's infection. The rapid diagnostic test can determine which antibiotic is most effective within 20 minutes, reducing unnecessary use and potential complications.
Researchers at Vanderbilt University Medical Center have developed a new light-based therapy to kill antibiotic-resistant bacteria, such as MRSA. The therapy uses a small molecule to activate an enzyme that produces reactive oxygen species, killing the bacteria when exposed to specific wavelengths of light.
Researchers at Rice University and the University of Science and Technology of China have developed a combination of antibacterial phages and magnetic nanoparticle clusters that infect and destroy bacteria protected by biofilms in water treatment systems. The innovative material, which uses bacteriophages combined with nanoparticles, c...
Researchers developed a tool using genetic markers to distinguish between viral and bacterial infections, aiming to reduce antibiotic misuse. The test accurately classified patients with bacterial infections 80-90% of the time, helping physicians avoid unnecessary antibiotics.
A study published in mBio found a ten-fold increase in certain bacteria under the foreskin can increase HIV risk, suggesting that penile microbiome may be a previously unrecognized risk factor. The researchers also suggest that this risk factor may be sexually transmissible and could lead to novel ways to protect against HIV infection.
A novel LpxC inhibitor, LPC-069, has been shown to be effective in treating multi-drug resistant bacterial infections, including those caused by Yersinia pestis. The compound was found to have no serious side effects at high doses.
E. coli bacteria hijack trace amounts of copper in the body to fuel growth and reproduce, a finding that could lead to new treatments for hard-to-treat UTIs. The 'nutritional passivation' strategy involves binding to metals like nickel, cobalt, and chromium to bring in controlled amounts of essential nutrients.
Researchers found that disrupting gut microbes in tadpoles affects adult frogs' ability to fight parasitic infections. A healthy bacterial community may confer protection against diseases later in life. The study's findings have implications for understanding the immune systems of mammals and humans.
Researchers developed an antibiotic-releasing polymer that successfully eliminated two types of prosthetic infection in animal models. This material could lead to single-procedure treatments, reducing patient inconvenience and complication risk.
A Wayne State University researcher has received a $1.9 million grant from the National Institutes of Health to study the role of AMP-activated protein kinase in regulating innate responses to bacterial endophthalmitis. The study aims to identify novel pathways and new means to treat blinding ocular infections.
Researchers found that algae and bacteria can form flocks at very low concentrations of individuals, enabling them to sense each other's presence and affect each other. This discovery could increase our understanding of how microorganisms infect their host animals and the evolutionary basis for flocking behavior among bacteria.
Researchers developed nanoparticles packaging an antimicrobial peptide that effectively reduced Pseudomonas aeruginosa in mice, showing potential for targeted treatment of pneumonia and other bacterial infections. The approach combines concepts from cancer nanotechnology to deliver drugs selectively to bacterial targets.
A study found that contaminated heater-cooler units produced by LivaNova were the likely source of M. chimaera infection in 21 open-heart surgery patients across Europe and North America. The authors suggest that controlling contamination at production lines is crucial to stop the outbreak.
Researchers found that Corynebacterium mastitidis lives on the eyes of laboratory mice and helps them fend off pathogenic microbes. The bacteria stimulates a local immune response, keeping it under control while preventing harmful infection.
Researchers found that wastewater-exposed rainbow darters had increased metabolic rates, suggesting they were under stress from environmental conditions. The presence of pathogenic bacteria in these fish was also linked to human infections such as food poisoning.