Articles tagged with Bacterial Infections
Using disinfectants can promote the growth of antibiotic-resistant bacteria, such as Pseudomonas aeruginosa. This adaptation enables the bacteria to survive and infect patients even without exposure to antibiotics.
A new study reports a significant surge in drug-resistant Acinetobacter infections among US hospitals, with over 300% increase in cases resistant to imipenem. The findings highlight the need for comprehensive solutions to address this growing public health threat.
Researchers at Binghamton University identified three key regulators required for biofilm formation, which could lead to new treatments for chronic infections. Biofilms are implicated in over 80% of chronic inflammatory and infectious diseases, and conventional antimicrobial treatments are often ineffective.
Scientists discovered that membrane ruffles are not essential for Salmonella to penetrate host cell membranes. A new factor called WASH promotes bacterial invasion by contributing to cytoskeletal filament formation.
Researchers found that tubercle formation is a critical step in TB infection, and that epithelial cells produce MMP9 enzyme to recruit macrophages. Blocking this pathway may lead to new therapies for TB and other inflammatory conditions.
A team of researchers from Arizona State University has developed a process that removes a key obstacle to producing lower-cost, renewable biofuels. The team has programmed a photosynthetic microbe to self-destruct, making the recovery of high-energy fats and their biofuel byproducts easier and potentially less costly.
Researchers found that copper surfaces had significantly fewer live bacteria than conventional surfaces, with one study showing a 71% reduction. Copper-based disinfectants also showed effective antimicrobial properties, continuing to kill germs for the rest of the day.
Scientists discovered a single compound that impairs both bacterial infection and biofilm formation, offering new hope for treating UTIs. The compound targets amyloids, which also contribute to Alzheimer's disease and other neurodegenerative disorders.
A new study reveals a seven-fold increase in community-associated MRSA strains in hospital outpatients between 1999 and 2006. This poses a significant threat to patient safety as these strains can spread rapidly into hospitals.
Researchers at Texas A&M University discovered that phages, a type of virus, can destroy bacterial cell walls by producing an enzyme called endolysin. This finding may aid in the development of phage therapy to treat bacterial infections.
A Tel Aviv University-developed dressing can eradicate infection-causing bacteria after just two days, protecting wounds until they heal. The biodegradable, antibiotic-infused material mimics skin's protective properties and helps doctors administer high doses of antibiotics locally, reducing toxicity issues.
Researchers at UC Davis identified a bacterial signaling molecule that matches up with a specific receptor in rice plants to ward off bacterial blight disease. The study's findings have implications for controlling diseases in plants and people, potentially leading to new treatments.
Researchers discovered that neutrophils, a type of white blood cell, lose their direction when the protein p55 is absent. This leads to impaired healing and slower response times to infections.
Pseudomonas aeruginosa produces rhamnolipids to form a biofilm shield that kills white blood cells, evading the immune system and antibiotic treatment. This 'launch a shield' response could lead to novel antimicrobials for treating antibiotic-resistant infections.
A Mayo Clinic study found that Clostridium difficile infections are rising in outpatient settings, with a higher proportion of cases in younger populations. The study suggests that antibiotic use may be contributing to the increased incidence and severity of C. difficile infections.
Researchers discovered a crucial immune system quirk that can lead to effective vaccines against tularemia infection of the lungs. By targeting IL-17 cytokine responses, scientists hope to develop better vaccines that can prevent lung infections.
Researchers found that latent CMV infection exacerbated intestinal inflammation and increased immune responses to normally harmless bacteria, contributing to IBD severity. Latent CMV infection may modulate mucosal immunity and predispose individuals to developing severe acute colitis and subsequently IBD.
A study found that men tend to react better to messages invoking disgust, while women respond to reminders. Handwashing rates were higher among women, with 64% washing their hands compared to 32% of men.
A study published in PLoS ONE identifies the genetic mechanisms behind L-form bacteria formation and survival. Researchers found that three groups of mutants with varying degrees of defect in L-form growth were linked to pathways related to cell envelope stress, DNA repair, iron regulation, and outer membrane biogenesis.
Scientists have developed a simple and portable method to detect tuberculosis (TB) bacteria using light, which may help identify people with latent infections. The technology, if refined, could be used in the developing world where most TB cases occur.
The Russian government should continue funding harm reduction programs for injecting drug users, as they are crucial for tackling the HIV epidemic. These programs have been instrumental in reducing deaths and improving health outcomes among this vulnerable population.
Researchers will investigate the activation of TLR4 and responses inside human cornea cells, with a goal to identify potential targets for anti-inflammatory intervention. The study aims to discover specific toll-like receptor antagonists to regulate corneal inflammation, potentially leading to novel medication alternatives.
Researchers have identified a link between the mutated FGFR4 protein and the spread of childhood cancer. Additionally, changes in iron levels are found to affect inflammation via the TLR4 pathway, while glial cells play a crucial role in stimulating red blood cell production.
A UBC research team has identified dendritic cells as a crucial part of the immune system's defense against bacterial infections. The study reveals that dendritic cells use cross-presentation to activate the immune system, and deactivating this process can lead to severe compromise in fighting Listeria infections.
Researchers have defined a molecular mechanism underlying impaired inflammatory responses in mice lacking Hfe. Altering iron levels may provide a new approach to controlling inflammation, as seen in studies with drugs mimicking altered iron distribution.
Infecting mosquitoes with Wolbachia parasite wMelPop reduces transmission of lymphatic filariasis by up to 85% and boosts mosquito immune system. Researchers aim to introduce this strain into other mosquito species to combat diseases such as malaria.
Researchers have discovered a group of substances that block flavodoxin, a key protein for H. pylori survival, offering promise for new specific antibiotics against the bacteria that causes stomach ulcers and other diseases worldwide.
A new ELISpot test can rapidly identify active tuberculosis in smear-negative patients, distinguishing it from latent TB infection. The test's accuracy is confirmed with a high positive rate of 91.5% in patients with active TB.
Scientists at the University of Michigan have developed a potential vaccine to prevent urinary tract infections, which affect 53% of women and 14% of men. The vaccine targets iron receptors on bacteria that cause infection, inducing an immune response in mucosal tissue.
A new study found that bean plants' natural defenses against bacterial infections cause the bacteria to exchange DNA, potentially leading to the emergence of more pathogenic strains. This process could have significant implications for understanding the relationship between pathogens and their hosts.
A study published in The Lancet found that vaccination against bacterial infections, such as Streptococcus pneumoniae and Haemophilus influenzae type b, can substantially improve survival rates in African children with sickle-cell anaemia. The researchers also found that these bacteria are the same cause of infection in both developed ...
A recent study published in The Lancet suggests that children in Africa with sickle cell anaemia are dying unnecessarily from bacterial infections. The researchers recommend vaccination programs for all children in Africa to prevent these deadly infections, which can be prevented by vaccination.
Scientists attach light-emitting genes to Listeria monocytogenes bacteria to detect their movement in real-time, revealing path of infection. The technology indicates which bacterial genes are switched on during infection and has potential for vaccine and DNA-delivery vectors.
Scientists have discovered how salmonella kills tumors by migrating into cancerous tissues and triggering a strong inflammatory response. The inflammatory response causes blood vessels in the tumor to become permeable, allowing salmonella to spread and ultimately kill the tumor.
Manuka honey kills MRSA by destroying key bacterial proteins, including FabI essential for fatty acid biosynthesis. The study suggests manuka honey could be used as a first-line treatment for resistant bacteria infections.
A study found that daily chlorhexidine bathing can dramatically reduce the risk of deadly bloodstream infections in ICU patients. Chlorhexidine glutonate is a cheap and effective antibacterial agent available for just $6 per bottle or $0.33 per packet.
The National Institute of Allergy and Infectious Diseases (NIAID) has launched two new clinical trials to investigate the optimal use of antimicrobial drugs in various clinical settings. The trials aim to determine if shorter treatment durations can be effective while reducing the risk of bacterial resistance.
A comprehensive review confirms the safety and efficacy of Descemet's Stripping Endothelial Keratoplasty (DSEK) as a treatment for corneal endothelial diseases, which affect 85% of corneal transplants in the US. In contrast, a type of antibiotic fluoroquinolone has been linked to double vision in some patients.
The American Phytopathological Society announced Ewen Callaway as the 2009 APS Plant Pathology Journalism Award winner. His article, 'The Green Menace,' discussed the citrus disease huanglongbing, which has devastated the citrus industry since its arrival in US soil in 2005.
Duke researchers found that bladder cells have a mechanism to detect and expel E. coli bacteria, offering potential new treatments for antibiotic-resistant UTIs and other infections.
A team of researchers discovered that virus-infected bacteria in pea aphids can provide protection against parasitic wasps. In laboratory experiments, about 90% of aphids carrying infected bacteria survived wasp attacks, compared to nearly no survival for those without the infection.
Researchers found that commensal bacteria in the human gut activate the immune system against Toxoplasma gondii by releasing signaling molecules, inducing inflammatory responses. The study suggests looking at gut bacteria to understand susceptibility to infectious diseases and developing novel probiotic strategies.
Researchers have identified a key protein, NanA, that allows pneumococcus bacteria to penetrate the brain, leading to meningitis. Removing or modifying this protein can prevent bacterial entry, offering potential new avenues for developing more effective vaccines.
Researchers discovered higher levels of pathogens and co-infections in honeybees from collapsing colonies, but no single pathogen can be identified as the cause. The study suggests that CCD may be contagious or caused by exposure to a common risk factor impairing bee immune systems.
Researchers discovered that an atomic force microscope's behavior changes when used in water, enabling the study of biological molecules' mechanical properties. The findings reveal details about a bacterial membrane and a virus called Phi29, shedding light on their intrinsic variations in local stiffness.
Researchers at Columbia University's Mailman School of Public Health have found a link between antibodies to strep throat bacteria and the development of obsessive-compulsive disorder in mice. The study suggests that an inappropriate immune response to the bacteria may trigger psychiatric symptoms, providing new insights into identifyi...
Researchers identified a genetic variation associated with an increased susceptibility for inflammatory disease, linked to nonfunctional CARD8 gene. The study suggests that loss of function of this gene may be one way in which populations evolve a more robust host response to deal with infectious diseases.
Researchers developed a blood mRNA expression signature that accurately identified influenza infection and distinguished between viral and bacterial infections. This breakthrough may lead to the creation of a blood test for diagnosing respiratory infections and predicting treatment outcomes.
Scientists used a whole-animal infection model to screen 37,000 potential drugs on infected C. elegans worms, identifying 28 new antimicrobials with novel mechanisms of action.
Researchers at Duke University have solved the structure of Ramoplanin A2, a candidate antibiotic that can kill pathogenic bacteria by interrupting cell membrane formation. The molecule forms U-shaped structures that bind to Lipid II, preventing its participation in membrane synthesis and leading to bacterial death.
Researchers found a potent staph toxin responsible for disease severity and its connection to antibiotic resistance. The study identified the gene encoding the toxin, which is transmitted through horizontal gene transfer.
A researcher at the University of Western Ontario is investigating how bacterial superantigen toxins lead to toxic shock syndrome and other serious diseases. By understanding how these toxins work, scientists hope to develop drug inhibitors that can neutralize them.
A new study finds that administration of a novel small molecule effectively disrupts quorum sensing in bacteria, protecting animal hosts from infection. The research offers a potential alternative to traditional antibiotics and may lead to more effective treatments for bacterial infections.
Researchers discover that mitochondrial diseases increase susceptibility to bacterial infection, particularly with pneumonia-causing bacteria like Legionella. The stress-signal associated with metabolic abnormalities encourages the growth and reproduction of these bacteria.
Innovotech's bioFILM PA test helps doctors select effective antibiotic treatment for serious, chronic infections. The test has shown positive results in selecting proper antibiotic treatment for patients with Cystic Fibrosis and other chronic infections.
Scientists at the University of Bath and University of Exeter have developed a technique to study bacterial infections in real-time with living organisms. They used fruit fly embryos to track bacterial movement and interaction with the immune system.
Researchers have developed a novel silver nanoparticle skin gel that effectively kills harmful bacteria, including drug-resistant microbes, while promoting wound healing without causing harm to healthy skin. The gel contains 30 times less silver than traditional antimicrobial agents, making it a safer option for burn patients.
Researchers have found that antibiotic treatment can induce the transmission of C. difficile by creating a 'supershedder state' in mice, where they shed high levels of spores even without symptoms. This suggests widening infection control measures to include all patients receiving antibiotics could be necessary.
In a study mapping the gene profiles of children with severe Staphylococcus aureus infections, researchers found that the innate immune response is overactivated while the adaptive immune system is suppressed. This knowledge could lead to better patient outcomes and more effective therapies.
A Stanford study found that caloric restriction may not be beneficial for infected fruit flies, contradicting previous findings. The research suggests that diet-restricted animals may fare poorly when infected with certain pathogens.