Articles tagged with Bacterial Pathogens
Research led by UTSW scientists finds that endocannabinoids can shut down genes needed for pathogenic intestinal bacteria to colonize and cause disease. The study suggests that these native chemicals similar to those found in cannabis may eventually lead to new ways to fight gastrointestinal infections.
Researchers found that auxin suppresses salicylic acid-mediated plant defense responses and promotes disease in Arabidopsis thaliana. Auxin also regulates virulence gene expression in Pseudomonas syringae bacteria, leading to increased disease susceptibility.
Researchers from Moscow Institute of Physics and Technology have developed a method to extract active compounds from black soldier fly larvae, which possess unique antimicrobial properties. The extract, called AWME, has been shown to be more effective than antibiotics in combating phytopathogenic bacteria.
Researchers from RUDN University discovered that non-pathogenic Xanthomonas bacteria can acquire virulence genes from other species, making them deadly to plants. The study found that the key factor in pathogenicity is the VirE protein, which was likely borrowed through lateral gene transfer.
Research finds that oral cancer is promoted by periodontal pathogens and can be inhibited by a bacteriocin, a naturally occurring antimicrobial peptide. The study offers new insights into the development of oral cancer and suggests potential therapeutic applications for nisin, a commonly used food preservative.
Researchers at the University of Tsukuba have discovered a mutualistic relationship between fungi and bacteria that allows bacteria to travel on fungal highways in exchange for thiamine. The study reveals a new mechanism by which bacteria can disperse and multiply, using the fungus as a 'highway' to colonize new areas.
A research team at Johannes Gutenberg University Mainz identified a new variant of Photorhabdus luminescens that interacts with plant roots, releasing substances to combat plant-damaging fungi. This discovery offers new prospects for sustainable crop protection and biological pest control in agriculture.
Researchers at University of São Paulo characterized a novel family of anti-bacterial toxins present in bacteria like Salmonella enterica. The toxins inhibit cell wall synthesis in rival bacteria, facilitating colonization and causing imbalances in established microbial communities.
Researchers found that worms can 'read' the small RNA of a pathogen and evolve a response to stay healthier, creating a nascent adaptive immune system. The small RNA, P11, is absorbed by the worm intestine and then passed on to subsequent generations.
Researchers found that Staphylococcus aureus bacteria adhere more strongly to hydrophobic surfaces, which have a high water-repelling effect. On these surfaces, the bacteria form robust biofilms that are difficult to remove, posing a significant threat to patients in hospitals.
Newly mated red fire ant queens select nest sites with lower pathogen risk based on chemical signals from actinobacteria. These bacteria produce compounds that inhibit the growth of ant-infecting fungi, allowing ants to survive and thrive in safer environments.
Researchers at MIT have developed a Velcro-like food sensor that uses an array of silk microneedles to detect spoilage and bacterial contamination. The sensor, made from edible proteins and bioinks, changes color when it senses contaminants like E. coli or pH levels associated with spoilage.
Researchers found that mice with mild skin infections develop adaptive immunity against bacteria, granting increased resistance to severe secondary infections. This discovery suggests that the 'allergy module' has an important biological function in defending against toxin-producing pathogens.
Researchers at West Virginia University are developing a vaccine to prevent Lyme disease, which affects over 300,000 Americans annually. The team aims to identify relevant antigens and target them in hopes of clearing the pathogen out, making it harder for it to change and evade the immune system.
A new study shows promise in reducing foodborne pathogens on tomatoes by applying sanitizers in the field. The method uses FDA-approved additives, significantly reducing bacterial populations and saving labor costs for producers. This approach could become a practical solution for controlling foodborne pathogens.
A recent MSK study discovered a direct link between inflammation and Alzheimer's disease development, highlighting the role of protein IFITM3 in plaque formation. Researchers found that removing IFITM3 reduced amyloid plaques in a mouse model, suggesting a potential biomarker for early detection.
Researchers at LMU find that H. pylori's genetic diversity enables it to exploit different cellular niches in the stomach lining, contributing to chronic infections and cancer risk.
Helper bacteria, such as Mycetocola tolaasinivorans, protect white button mushrooms from the bacterial pathogen Pseudomonas tolaasii by enzymatically disabling its toxin and motility. This mechanism involves a lactonase enzyme that linearizes the tolaasin toxin into a non-toxic structure.
Plant researchers have identified the calcium channel responsible for stomatal closing, a crucial defense mechanism against pathogens. This discovery has the potential to engineer pathogen-resistant crops by allowing plants to 'close their gates' when threatened.
A study suggests that oral bacteria like Fusobacterium nucleatum can promote the growth of harmful pathogens in the vagina, leading to bacterial vaginosis (BV). The research found that Fusobacterium may engage in mutually beneficial relationships with other vaginal bacteria, encouraging dysbiosis and BV features.
Researchers from the University of Göttingen have developed a promising new approach involving antivitamins to combat bacterial infections. The study found that antivitamins can inhibit bacterial proteins, preventing their function and leading to potential antibiotic effects.
Research found that frequent use of antimicrobial drugs in early life shifts bacterial profiles in saliva, with azithromycin having the strongest effect on girls. The study also showed that AM use is associated with a decrease in Paludibacter and pathways related to amino acid degradations.
A comprehensive database of 33,242 unique viral populations in the human digestive system has been assembled by Ohio State University scientists. This discovery reveals a complex relationship between viruses and bacteria in the gut, with higher diversity associated with healthier individuals.
Research finds that bacteria in unicellular organisms become more infectious when they must switch host cells, thanks to changes in gene expression. This adaptation allows them to survive outside the host cell and maintain infectivity.
Researchers at UT Southwestern Medical Center discovered that Vibrio parahaemolyticus uses a novel pathway to escape human intestinal cells. The bacteria modify cholesterol molecules in the cell membrane, weakening it enough for the bacteria to break through and infect new cells.
Researchers at Monash University have discovered a previously unknown way bacteria evade immune responses, targeting mitochondria for disarming. The study suggests potential new ways to combat resistant bacterial infections and could lead to new therapeutic possibilities.
Researchers found treponematoses in ancient human remains from Finland, Estonia, and the Netherlands, dating back to the 15th-18th century. This suggests that syphilis may have originated or developed in Europe before Columbus' voyages to America.
A new study by the University of Exeter and Cefas highlights the potential risks of microplastics carrying pathogens, which could threaten food production and safety. The research found high levels of bacteria on microplastic particles, including those that can cause disease in humans and animals.
A team at SMART has found that exposing bacteria to hydrogen sulfide can increase antimicrobial sensitivity in bacteria that do not produce H2S, potentially providing a breakthrough in treating drug-resistant infections. The study suggests that the results may be applicable to all bacteria that do not naturally produce H2S.
Scientists created metabolic models of the bacterium associated with Huanglongbing, identifying 94 essential enzymes and metabolites required for its survival. These findings can lead to new antibacterial treatments and insights into long-lasting disease management strategies.
Researchers at Goethe University have isolated an ancient enzyme that enables early bacteria to produce energy without oxygen. The Rnf enzyme functions like a pumped-storage power plant, generating electricity and producing ATP.
A titanate nanowire mask can trap and destroy pathogens using photocatalytic properties of titanium dioxide, potentially reducing waste and environmental impact of disposable masks
Scientists at NTU Singapore developed a synthetic peptide, CSM5-K5, that makes multidrug-resistant bacteria sensitive to antibiotics when used with traditional antibiotics. The peptide also kills resistant bacteria on its own, offering hope for combination treatment strategies.
A new analysis found that microorganisms causing human diseases can be present in vultures, including multi-resistant bacteria. However, there is no clear evidence that vultures spread pathogens to humans and other species, but they may help prevent disease transmission by consuming carcasses.
A machine learning algorithm using high-temporal-resolution growth curves distinguishes bacterial pathogen strains with 92-98% accuracy, predicting antibiotic resistance as well as genetic-based methods. The method has the potential to be faster, simpler, and less expensive than current techniques.
Researchers at Université de Genève discovered that the RNA helicase protein contributes to the synthesis of fatty acids, a crucial component of bacterial membranes. The findings provide insight into golden staph's ability to adapt to changing environments and may lead to new treatment options.
Chlamydia bacteria reprogram human host cell metabolism to increase glutamine import, essential for proliferation. The discovery could lead to new treatments for chronic infections and severe diseases like cervical and ovarian cancer.
Researchers discovered multiple cell death systems preventing the spread of Salmonella, a major cause of typhoid fever. Cells use various mechanisms to die and protect against infection, including apoptosis, pyroptosis, and necroptosis.
A recent study found alarming levels of human bacterial pathogens and microdebris materials, including plastics and milk supplement powders, in oysters from the eastern Andaman Sea. The research suggests that coastal urbanization increases contamination in seafood, posing significant health risks to humans and threatening global food s...
A team of researchers at Aarhus University discovered a novel class of carbohydrate receptors in bacteria, which play a crucial role in biofilm formation, cell-to-cell interactions, and pathogenesis.
The review paper reveals the intricacies of bacterial organelles, which support functions essential for survival and growth. Organelles enable bacteria to perform extraordinary tasks, such as photosynthesis and orientation relative to magnetic fields.
Researchers used AI to predict bacterial infections in patients with pneumonia, enabling early antibiotic prescriptions. The analysis of over 50,000 ICU admissions data showed promising results in identifying MRSA and pseudomonas bacteria.
A new technology dubbed MorphEUS enables rapid screening of drug candidates against Mycobcterium tuberculosis (M. tb), the bacterium that causes TB. It uses high throughput imaging and machine learning to uncover patterns in how antibacterials kill, improving the efficiency and effectiveness of treatment development.
A research team discovered that certain sections of bacterial genetic material are doubled or multiplied, giving bacteria new capabilities to influence the immune system and adapt to changing environments. This process is crucial for pathogens to develop and evolve in their battle against the human immune system.
Emerging disease has spread to ten US states and South America, infecting over 80% of corn plants in some fields. Research reveals global spread, host range, and potential DNA transfers among strains.
A portable testing lab that fits into a suitcase has been developed by Newcastle University experts to detect waterborne hazards. The lab enables quick and affordable screening of millions of bacteria in a single water sample, providing critical data for public health officials to identify and deal with local hazards.
A new AI-powered holographic imaging system detects bacteria growth in water samples with high sensitivity and speed, saving over 12 hours compared to traditional methods. The platform can classify three types of bacteria, including E. coli, within 9 hours.
A new, evidence-based guideline has been created to treat patients with NTM lung disease. The guidelines, developed by experts from leading international societies, provide thirty-one recommendations for the treatment of patients suffering from NTM pathogens.
Researchers have discovered a single protein derived from a harmless bacteria that can halt the CRISPR-Cas13 editing process. This 'kill switch' enables scientists to edit RNA with more precision and exact control, potentially benefiting coronavirus researchers and applications.
Researchers analyzed fecal samples from healthy Japanese individuals and detected phage-derived antibacterial enzymes that control pathobionts. These enzymes were shown to regulate C. difficile infection in mice, providing a potential treatment for this disease.
Researchers found that curli amyloid produced by Salmonella bacteria triggers autoimmune reactions in mice, leading to reactive arthritis. The study suggests that curli proteins may play a role in other autoimmune diseases and neurodegenerative processes.
Researchers at the University of Cincinnati found that a strain of E. coli Nissle protects human cells against pathogenic E. coli bacteria. The study suggests that Nissle may be used to develop a treatment for E. coli infections, which affect millions annually.
A University of Pittsburgh research team received $330K to study the effect of silver on water disinfection. The goal is to determine if silver-coated shower fixtures effectively prevent opportunistic pathogen exposure and minimize antibiotic resistance.
Researchers discovered that Nissle, a harmless E. coli strain, can protect intestinal tissue against pathogenic strains like enterohemorrhagic E. coli (EHEC). The probiotic was found to decline rapidly in the tissue while allowing it to withstand damage better.
The study reveals that Burkholderia pseudomallei infection sets off a series of events that provoke the host's immune system, causing infected cells to self-destruct. The researchers found that abnormal cell fusion stimulates the type 1 interferon signaling pathway, leading to autophagy and cell death.
Researchers created miniature gut organoids that demonstrate segment-specific gene activity patterns and immune binding sites, shedding light on the causes of inflammatory diseases. These findings have implications for understanding cancer development and human disease.
Researchers observed that C. jejuni swims faster in viscous liquids due to its flagella, which wrap around the helical body to propel itself forward. This finding could lead to new strategies for preventing C. jejuni infections by targeting its movement mechanisms.
Researchers used cryo-electron tomography to reveal the molecular architecture of Uromodulin filaments, which form a fishbone-like structure that traps bacteria. The findings provide insights into Umod's role in protecting against urinary tract infections and its other physiological functions.
Researchers discovered that uromodulin forms long filaments that envelop pathogens, neutralizing them and preventing infection. The findings offer pointers for developing new treatments and drugs to prevent urinary tract infections without antibiotics.
Scientists have discovered that the Anaplasmosis bacterium interferes with tick gene expression to survive and spread to new hosts. The study found that the bacterium reduces a regulatory molecule's production, leading to increased levels of Organic Anion Transporting Polypeptide (OATP), which enables its spread to vertebrate hosts.