Articles tagged with Bacterial Infections
Researchers at the University of Texas at Austin have developed chemical probes to detect an enzyme that breaks down antibiotics, making bacteria resistant to treatment. The probes can also be used to study nutritional immunity and may help find alternative treatments for resistant bacteria.
According to NIH scientists, Salmonella bacteria establish a foothold in the GI tract by hijacking intestinal epithelial cell response, driving colonization and fecal shedding. This process fuels the bacteria's ability to invade neighboring cells and seed the intestine for transmission.
A new gene cluster in Staphylococcus epidermidis enables the bacteria to produce structures that allow them to attach to human cells and form a persistent infection. This discovery could lead to better treatments or vaccinations against methicillin-resistant S. aureus.
A study published in PLOS ONE found that a higher BMI is associated with improved survival rates in patients hospitalized for severe bacterial infections. In the short and long term, patients with higher BMIs had significantly lower mortality rates compared to those with normal weights.
Researchers have shown that CRISPR-Cas components are physically linked, enabling efficient updates of immune memory when infected by mutant viruses. This link allows bacteria to efficiently adapt and interfere with viral infections.
Campylobacter infections can be transmitted through fecal-oral contact, particularly among men who have sex with men. The study found the rate of infection was 14 times higher in this group than control subjects.
A study by UT Southwestern researchers reveals that a protein called gasdermin B (GSDMB) is killed by the infectious bacteria Shigella flexneri, which tags GSDMB with a chemical tag for destruction. This discovery could lead to new antibiotics and treatments for inflammatory diseases such as asthma and Type 1 diabetes.
A new study suggests that hexanoic acid could be a suitable substitute for chemical protection in citrus cultivation, addressing concerns about the impact of old-school defenses on food safety. Researchers believe this fatty acid may help protect against diseases like canker, which causes brownish lesions on leaves and fruit.
A new study published in Nature Medicine proposes that microbes exist as networks, driving frequent flare-ups in patients with bronchiectasis. The research team analyzed over 400 respiratory samples and found negative interactions between microbes contributing to infection severity.
Photodynamic therapy has shown promising results in treating respiratory tract infections and some types of cancer. Adding antibodies to the treatment can increase its efficacy, making it an attractive option for rapid responses to pandemics. The new approach uses viral antibodies attached to light-absorbing molecules to target viruses...
COVID-19 patients are at risk of developing another bacterial, viral, or fungal infection simultaneously or subsequently. Research reveals that such co-infections can lead to poorer health outcomes for these patients.
Researchers at Monash University have engineered a new antimicrobial surface that significantly reduces bacterial attachment and biofilm formation on medical instruments, including urinary catheters. The surface, with smooth 3D micro features, effectively combats the three most common UTI-causing bacteria.
Researchers have developed a novel nanotechnology that can improve the effectiveness of the CF antibiotic Tobramycin, increasing its efficacy against Pseudomonas aeruginosa lung infections. The technology has shown to eradicate infections in as little as two doses, providing new hope for people living with cystic fibrosis.
Researchers conducted a comprehensive health assessment of gopher tortoises, finding that 42.9% had circulating antibodies to Mycoplasma agassizii, indicating an outbreak at one site. The study provides important baseline data on emerging pathogens and highlights the need for further surveillance.
Researchers at Chalmers University of Technology have developed a new hydrogel material that prevents infections in wounds, effective against all types of bacteria, including antibiotic-resistant ones. The material uses antimicrobial peptides and is promising for combating global health threats.
A randomized controlled trial found that brief educational videos can reduce patients' expectations for antibiotic treatment of upper respiratory tract infections. However, the doctors' actual prescribing habits showed no significant change.
Researchers tracked antibiotic resistance in E. coli over 16 years, finding rapid increase in multi-drug resistant strains. The study highlights the importance of tracking resistant bacteria to prevent their spread and improve treatment options.
Researchers developed a microneedle patch that delivers vancomycin directly into the affected skin area, significantly reducing MRSA bacterial population. This innovative approach aims to transform the treatment of skin infections by improving quality of life for patients.
Researchers identify key protein MavQ that helps Legionella bacteria set up house in human cells, remodeling endoplasmic reticulum to create protective dwellings. This discovery could lead to new treatments for various infections.
University of Florida researchers have demonstrated a novel approach to triggering immunity against salmonella, using extracellular vesicles (EVs) that contain antigens from the bacteria. In mice, these EVs induced both innate and adaptive immune responses, offering a promising direction for developing a vaccine.
Researchers at Duke University Medical Center developed a gene expression method that can quickly identify the source of respiratory symptoms. The test has been shown to be accurate in distinguishing between viral and bacterial infections, with results available in under an hour, improving clinical care.
Researchers have developed a new model of NTM lung infection and found that human mesenchymal stem cells (hMSCs) are effective in treating this condition. The study identified donor-specific hMSC potency against NTMs, which could lead to improved treatment outcomes for patients with chronic NTM lung disease.
A recent study found that c-Jun and JunB proteins play a crucial role in the development of Type 1 dendritic cells, which are essential for defending against bacteria and viruses. The discovery could lead to new therapeutic approaches for cancers and viral infections.
A systematic review found no conclusive evidence on portable air filters' ability to reduce respiratory infections, including COVID-19. Two studies did demonstrate capture of airborne bacteria and reduced bacterial counts, but not viral particles or a reduction in incidence.
A recent study has tracked the evolution of a multi-drug resistant organism in cystic fibrosis patients, revealing that it can evolve rapidly within an individual during chronic infection. The researchers emphasize the importance of treating patients with M. abscessus infection immediately.
A new study published in PLOS Pathogens found that mice fed a Western-style diet high in processed foods and low in fiber developed persistent infections that led to inflammation and insulin resistance. The researchers suggest that altering gut microbiota through diet may be a means of promoting health.
Researchers developed nanobodies that target a protein making Ehrlichia chaffeensis bacteria infectious. In mice experiments, the treatment showed significantly lower levels of bacteria two weeks after infection.
Researchers found that metformin inhibited the spread of Clostridioides difficile (C. diff) in three study models, including cell cultures and mouse models. The treatment reduced C. diff proliferation and increased the growth of closely related nonpathogenic bacteria.
A Phase 2b trial will test Dalbavancin for safety and efficacy in treating complicated S. aureus bacteremia in hospitalized adults. The study aims to validate a dalbavancin regimen of one dose a week for two weeks, potentially leading to a shorter and less invasive treatment.
New research from the Cornell Lab of Ornithology analyzes the impact of a bird eye disease on house finch populations, revealing an escalating arms race between the birds' immune systems and bacterial strains. The study suggests that imperfect immunity is driving this battle, with bacteria evolving to overcome strengthened finch defenses.
Researchers develop nanoparticles that penetrate human cells and destroy bacteria, offering new hope against antibiotic resistance. The particles use cerium oxide to create reactive oxygen species that kill germs, reducing the likelihood of resistance development.
A Georgia State University professor has received a $2.3 million grant to investigate the role of inflammation in otitis media, an infection of the middle ear. The goal is to develop novel anti-inflammatory therapeutics and improve hearing outcomes.
The American Heart Association recommends prioritizing good oral hygiene and regular dental care over antibiotics for preventing heart infections caused by mouth bacteria. Patients with certain conditions, such as prosthetic heart valves or congenital heart disease, are at higher risk of developing these infections.
Scientists developed an imaging agent that enables safe and rapid detection of Enterobacterales infections in patients, distinguishing between drug-susceptible and resistant strains. The agent revealed sites of infection, monitored response to antibiotics, and identified secondary bacterial infections.
Researchers developed a new diagnostic tool that uses positron emission tomography and radioactive sugar to detect Enterobacterales infections. The technique was shown to be effective in detecting and localizing infections in patients, with no adverse effects.
Researchers at Uppsala University discovered that the surface layer of the intestinal mucosa can contract in response to bacterial attack, preventing damage and promoting healing. This finding offers a potential solution to treating bacterial gut infections, which affect hundreds of millions worldwide.
Researchers have uncovered a molecular reason why faecal transplants are effective in treating C. diff infections, suggesting new therapeutic targets. The study identified specific microRNAs that contribute to disease pathogenesis and protect bowel cells from bacterial toxins.
An international team of researchers is working on creating bactericidal surfaces inspired by natural materials like insect wings and lotus leaves. These features can be used to kill bacteria and reduce infection rates in medical implants.
Researchers aim to create implant surfaces with antibacterial features, inspired by natural materials like insect wings and lotus leaves. The goal is to reduce prosthetic infections, which cause significant costs to healthcare systems.
The American College of Physicians suggests prescribing shorter antibiotics courses for uncomplicated bronchitis, pneumonia, urinary tract infections, and cellulitis, with duration guidelines varying by infection. This approach aims to reduce antibiotic exposure and prevent resistant organisms from developing.
Researchers discovered that transfer RNAs (tRNAs) play a crucial role in controlling the activation of the stringent response pathway. The MurM enzyme, involved in cell wall synthesis, acts as a quality control manager to ensure accurate translation and prevent toxic tRNA buildup.
Researchers at Washington State University have discovered a protein that could block Campylobacter, a leading cause of food poisoning. The secreted protein, CiaD, facilitates cell entry and takes control of important cell processes. This breakthrough could lead to real-world solutions for preventing Campylobacter-related diseases.
Researchers discovered that Streptococcus pyogenes can use arginine to survive on the skin surface. This knowledge could lead to new treatment strategies by blocking arginine metabolism in the bacteria.
Researchers analyzed data from 2001-2004 National Health and Nutrition Examination Survey to link MRSA carriage with mortality risk. The study found that middle-aged and older adults who unknowingly carry MRSA on their skin have twice the mortality rate of those without the bacteria, highlighting the need for routine screening.
A recent study reveals that long-term infection and chronic inflammation lead to a decline in immune function, particularly in older adults. The research found that Dnmt3a-loss of function HSCs exhibit increased self-renewal and reduced differentiation into immune cells, ultimately outcompeting normal HSCs.
Two approved medications, ticagrelor and oseltamivir, protect platelets and improve survival in mice with S. aureus blood infections. These compounds could be repurposed to treat badly needed therapies for blood infections.
A pilot study from North Carolina State University and the University of North Carolina at Chapel Hill found evidence of Bartonella infection in the blood of people with schizophrenia and schizoaffective disorder. The study suggests a potential link between Bartonella infection and neuropsychiatric disease, particularly schizophrenia.
An international study found that insomnia, disrupted sleep, and daily burnout are linked to a heightened risk of not only becoming infected with coronavirus but also having more severe disease and a longer recovery period. The study also revealed that every extra hour of sleep at night was associated with 12% lower odds of infection.
Researchers found that adding an iron binder to Bedaquiline treatment boosts its ability to combat TB bacteria. The study suggests a promising approach to improving patient outcomes and developing new treatments.
A new antibiotic compound targets a molecular pathway found in bacteria but not humans, clearing infection of multi-drug resistant gonorrhea in mice with a single oral dose. The research team developed the compound through iterative optimization and testing, demonstrating its potential as a single-dose therapy for gonorrhea.
Research reveals that nitric oxide produced by the human immune system can render aminoglycoside antibiotics ineffective against E. coli strains from human infections. This may impact treatment choices for life-threatening infections such as sepsis, bladder infections, and kidney failure.
Researchers employed nanoparticles-based delivery systems to deliver AMPs for treating deep infections. Intelligent nanocarriers can achieve selective activation and target at infection sites, improving therapeutic efficacy against bacterial infections and reducing toxicity.
A silent killer, Enterococcus lacertideformus, has been discovered as the cause of mysterious deaths in native reptile populations on Christmas Island. The bacterium grows in the animal's head and internal organs, causing death through direct contact or biting, highlighting the need for targeted antibiotic trials.
Researchers at MSU used transposons to tag individual strains of Brucellosis bacteria, allowing them to track the spread of the disease in cattle. The study provided critical insight into the cow's mucosal barrier and identified genes involved in severe outcomes.
Researchers developed a mouse Intestine-on-Chip platform to study host-microbiome interactions, confirming that Enterococcus faecium promotes tolerance to S. typhimurium infection in mice. The technology mimics human Intestine Chips, enabling real-time analysis of normal and pathological processes.
A team of scientists has developed an AI model that can predict the success of bacterial infections by analyzing the interactions between different effectors. The study found that even if some effectors are removed, the infection can still take hold due to the inherent strength and flexibility of the effector network.
A recent study found a significant increase in heart infections and strokes in the US, primarily due to IV drug use during the national opioid epidemic. Medical costs associated with these cases were also significantly higher, translating to over $100,000 per patient.
A study by RUDN University found that a marjoram-based supplement improves the growth of common carp and boosts their immunity against bacterial infections. The supplement demonstrated significant effects on fish infected with Aeromonas hydrophila, including increased survival rates and improved feed conversion rates.
Researchers detect molecular changes in infected human cells and bacterial pathogen, revealing new insights into infectious disease mechanisms. The findings may lead to novel methods for combatting invasive pathogens during spaceflight and on Earth.
A new study has identified pantaphos as the molecule responsible for causing onion center rot. The researchers also discovered that pantaphos can act as an effective herbicide and is toxic to glioblastoma cells, making it a promising candidate for agricultural and biomedical applications.