Articles tagged with Bacterial Infections
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.
Researchers have developed a new treatment for bacterial keratitis using quantum dots, which can kill various bacterial strains without harming human cells. The one-step method produces non-toxic carbon quantum dots that may replace conventional treatments.
A Penn study found a 189% increase in multiple recurring Clostridium difficile infections from 2001 to 2012, highlighting the growing need for effective treatments. Fecal microbiota transplantation shows promise but requires further evaluation for long-term safety.
A new study published in the New England Journal of Medicine found that antibiotics are effective in treating small skin abscesses when combined with drainage. The study showed higher cure rates for adults and children using clindamycin or trimethoprim-sulfamethoxazole, compared to drainage alone.
Researchers found two common, inexpensive antimicrobials can help patients recover from MRSA abscesses, contradicting current thinking on treatment effectiveness. The study involved 796 children and adults with small, uncomplicated skin abscesses.
Researchers at UT Southwestern Medical Center found that Vibrio parahaemolyticus bacteria deploy a needle-like apparatus called Type III Secretion System (T3SS) to inject toxic proteins into cells, disabling their ability to produce defensive molecules like reactive oxygen species. This allows the bacteria to escape the gut and cause l...
Researchers found that Candida tropicalis infection intensifies Crohn's disease symptoms in mice by modulating gut bacteria and triggering inflammation. The study suggests anti-fungal medications could be beneficial in combating debilitating symptoms of the disease.
Researchers found that mucosa-associated invariant T (MAIT) cells can mount a rapid and robust inflammatory response to bacterial superantigens, contributing to severe organ damage or death. The overzealous response leads to exhaustion of MAIT cells, resulting in immunosuppression and increased susceptibility to secondary infections.
A study by Penn researchers found that antibiotics can significantly change the skin microbiome, leading to lingering effects even after treatment is stopped. Antiseptics, on the other hand, had a less durable impact and did not significantly alter the skin's microbial communities.
Rachel Whitaker, Associate Professor of Microbiology at the University of Illinois, receives a $1.5 million award to study mobile genetic elements and their role in microbial evolution. Her research aims to develop a new evolutionary paradigm to combat antimicrobial resistance.
A team from Ireland developed a collagen scaffold loaded with an antibiotic to prevent bacterial biofilm formation, successfully targeting Escherichia coli and Staphylococcus epidermidis. The discovery marks a significant step forward in combating implant infections, which can cause long hospitalization periods and additional surgeries.
Researchers from Queensland University of Technology found that airborne pseudomonas aeruginosa bacteria can remain viable in the air for up to 45 minutes after being expelled by human coughs and sneezes. This could have significant implications for infection control in hospitals, particularly for patients with cystic fibrosis.
Researchers discovered that the pathogen Francisella tularensis uses a nano-machine called type VI secretion system (T6SS) to disrupt digestive vesicles and escape into the cytosol, allowing it to rapidly replicate. This efficient defense mechanism is crucial for the bacterium's success in an infection.
Researchers at Wayne State University are working on a novel therapy for corneal bacterial infections, including those caused by antibiotic-resistant bacteria. The team is testing the role of microRNAs in regulating the innate immune response to Pseudomonas aeruginosa-induced keratitis.
A new study from Washington University School of Medicine has found that a molecular decoy can target and reduce E. coli bacteria in the gut, reducing the risk of UTIs. The treatment, known as mannoside, works by binding to the bacteria's pilus, allowing it to be flushed out with urine.
A new study published in Cell Host and Microbe has uncovered the immune mechanism driving diarrhea and its role in pathogen clearance. Researchers found that diarrhea resulting from the signaling of specific molecules helps promote pathogen clearance and limit disease severity.
A newly discovered natural antibiotic produced by bacteria from a cystic fibrosis patient could potentially be used to combat drug-resistant tuberculosis. Lab testing showed that the compound, gladiolin, is stable and effective against four drug-resistant TB strains.
A study found that cleaning and sterilization techniques used to clean flexible ureteroscopes leave behind contamination, including debris, residue, and bacteria. Researchers concluded that these failures may result in the use of dirty scopes, posing unknown implications for patients.
A study found that 37% of heater-cooler units tested positive for the bacterium Mycobacterium chimaera, which can cause fatal infections. The devices, used in over 60% of heart bypass procedures in the US, can contaminate patient blood and organs during surgery.
Researchers have developed a new method to control fire blight by using a genetically modified bacteriophage (Y2) that can dissolve the slime layer protecting the Erwinia bacteria and kill it. Additionally, another variant of Y2 has been engineered to detect Salmonella by emitting light when bound to infected bacteria.
Researchers found that gut bacteria can limit Listeria growth and prevent infection in immunocompromised mice. Probiotic bacteria species were identified as protective against Listeria infections in laboratory cultures.
Researchers discovered that fruit flies carrying Wolbachia bacteria are better equipped to fight off other infections when infected orally rather than via injection. The study also found that male flies experience greater disease protection with Wolbachia than females, highlighting potential differences in immune response between sexes.
Researchers found decreasing rates of resistance to oxacillin and other antibiotics in Staphylococcus aureus, while ceftaroline remained highly active against MRSA. The study's findings suggest a potential decrease in the prevalence of community-acquired MRSA, highlighting the importance of monitoring antimicrobial resistance.
A new study found that vaginal bacteria can alter the sexual transmission of Zika and herpes simplex virus-2. The presence of Lactobacillus bacteria was associated with reduced replication of herpes simplex virus-2, while some microbiomes lacking Lactobacillus allowed for increased replication of Zika virus.
Researchers at Yale University have developed a novel chemical process to create a new class of antibiotics, which could help combat growing resistance. The discovery uses simple commercial chemicals to produce molecules related to the natural product pleuromutilin.
UCSB biologists develop new antimicrobial susceptibility test that mimics conditions in the body, identifying effective treatments for diverse bacteria. The revised test has significant implications for public health, allowing physicians to choose alternative drugs immediately if a standard test fails.
Researchers found that mosquitoes infected with Wolbachia spread at about 100-200 meters per year in large release sites but had limited impact in smaller areas after two years. This suggests strategic releases can transform urban mosquito populations and virus transmission in cities.
Scientists at Scripps Research Institute have discovered a way to make vancomycin, an existing antibiotic, even more potent by adding three independent mechanisms of action. This new version has a 1,000-fold increase in activity against bacteria, making it a promising alternative to combat antibiotic-resistant infections.
Researchers found that administering certain drugs to make cells more negatively charged strengthens tadpoles' innate immune response to E. coli infection. Removing tail buds also increases survival rate.