Articles tagged with Bacterial Pathogens
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Researchers at TUM have developed a biodegradable insect deterrent that repels pests without poisoning them, potentially saving bees and other beneficial insects. The new product is produced by bacteria that use terpenoid-based compounds to protect themselves from pests, offering an alternative to traditional synthetic pesticides.
Engineers at the University of California San Diego have developed cell-like nanorobots that can swim through blood to remove harmful bacteria and toxins. These nanorobots combine platelet and red blood cell membranes, allowing them to target pathogens and neutralize toxins, making them a potential tool for detoxifying biological fluids.
A study published in Foodborne Pathogens and Disease suggests that farm animals may play a role in helping to combat drug-resistant infections. Researchers analyzed the transfer of resistant E. coli between farm animals and humans, highlighting the need for more robust data and state-of-the-art genome analysis.
Researchers discovered Acinetobacter baumannii attaches to plastic medical devices using its 'fingers' to form biofilms. Developing antibodies that prevent bacterial attachment could help reduce pathogen spread in hospitals.
Researchers at North Carolina State University have synthesized a new compound inspired by a natural product that is effective against drug-resistant bacteria like MRSA. The molecule, JJM-35, has been shown to be up to 50 times more effective than the original natural product against several bacterial strains.
Scientists at the NIH have unraveled the process by which the tularemia bacteria cause disease, finding that it tricks host cell mitochondria in two phases of infection. This understanding could lead to the development of effective treatment strategies for the life-threatening disease.
Researchers at Oxford University have created a lab-based approach to develop defensive relationships between hosts and bacteria, which can work together to prevent infection. The study found that these relationships can evolve quickly in a matter of weeks, providing a new potential solution to the growing superbug crisis.
Researchers discovered that bacteriophages can transfer genes to E. coli bacteria, enabling them to break down a crucial cell component and reset their metabolism for new survival functions. This study highlights the importance of investigating hidden potential in bacterial cells to understand antibiotic resistance and pathogenicity.
A gene regulation network in Acinetobacter baumannii boosts both virulence and antibiotic resistance when faced with antibiotics. The network, known as BfmRS, controls key processes involved in cell envelope construction and division, leading to increased drug resistance and disease severity.
Scientists at Goethe University Frankfurt reveal atomic details of Legionella's enzymatic weapon and develop the first inhibitor. The discovery has implications for tackling antibiotic-resistant bacteria, which threaten global health and economic stability.
Researchers developed an animal probiotic that can reduce methane emissions and prevent nitrite poisoning in cattle. The probiotic uses a bacteria-based approach to increase feed efficiency and decrease pathogen carriage, with potential benefits for greenhouse gas reduction.
Researchers have discovered that soil microbes use chemical signals to defend against each other and devastating crop diseases. The study found that certain bacteria can induce fungi to produce protective compounds, while the fungus's own defense mechanisms are triggered by the bacterial invasion.
Researchers found increased expression of genes responsible for antibiotic resistance in human clinical infections compared to laboratory experiments. This discovery could help scientists draw more accurate conclusions and provide better information on treating bacterial infections.
A study published in Applied and Environmental Microbiology found a surplus of pathogenic bacteria in placentas from premature births, supporting the hypothesis that maternal infection may cause preterm birth. The research also discovered evidence of placental bacteria in healthy pregnancies, challenging conventional wisdom.
Researchers found that bacterial signals play a crucial role in developing pre-leukemic myeloproliferation, a precursor condition to leukemia, in mice with TET2 mutations. The study suggests that targeted treatments could reverse the disease by blocking aberrant IL-6 signals.
UNIGE researchers found that a DNA-binding factor called TOX triggers immune cells to cause autoimmune tissue destruction in the brain. This discovery provides important insights into understanding and treating auto-immune diseases.
Researchers have discovered universal antibodies that can recognize and neutralize a wide range of microorganisms, including bacteria, yeasts, and viruses. These breakthrough findings hold promise for developing new treatments for life-threatening infections, particularly in patients with weakened immune systems.
Researchers at Stanford University School of Medicine have shown that manipulating a mouse's diet can favor the engraftment of specific bacterial strains. By adding a carbohydrate-rich compound, they were able to control how much a bacterium grows in the intestine and even introduce new strains into the gut microbiome.
A new machine learning tool can identify genetic changes in emerging strains of Salmonella that are more likely to cause dangerous bloodstream infections. The tool was developed using a dataset of old lineages and identified almost 200 genes involved in determining the pathogen's behavior.
Researchers used machine learning algorithms to identify patterns within human gut bacteria that predict susceptibility to cholera. The study found that a set of 100 microbes associated with the disease can be predicted by AI, potentially leading to improved vaccines and preventive approaches.
Researchers at TUM have deciphered the mechanism of action for a class of pore-forming bacterial toxins. This breakthrough could lead to new substances that inhibit toxin interaction and prevent fatal cell damage.
A new study from Caltech sheds light on how a specific species of beneficial bacteria harnesses the body's immune response to settle in the gut. The researchers found that the bacteria are encased in a thick capsule made of carbohydrates, which is necessary for colonization and helps anchor them to epithelial cells.
A new study reveals that a type of beneficial bacteria, Bacteroides fragilis, uses the host's immune protein IgA to colonize the gut. The research suggests that IgA fosters colonization of microbiota with beneficial properties during healthy circumstances, while disease states may disrupt this balance.
Researchers at UCR have made a significant breakthrough in understanding the molecular mechanism of huanglongbing, a devastating citrus disease that costs billions worldwide. The team discovered that a bacterial protein called SDE1 helps infect plants by attacking specific proteases that could help trees resist infection.
Researchers discovered a new resistance mechanism in Acinetobacter baumannii that blocks the critical antibiotic colistin. The mechanism involves disruption of the hns gene by an insertion sequence element, leading to increased expression of genes that boost colistin resistance.
Researchers found that bacteria in Pseudomonas aeruginosa colonies produce dual signal responses to antibiotic tobramycin, including a localized and community-wide response. This communication may enable the bacteria to develop tolerance to some antibiotics.
A recent study published in Cell Host and Microbe found that bacteria in the small intestine play a vital role in fat digestion and absorption. The researchers discovered that high-fat Western diets stimulate the growth of beneficial microbes in the small intestine, which then produce digestive enzymes to break down dietary fat.
Scientists at the University of Copenhagen have successfully targeted and killed E. coli using a cocktail of viruses, preserving the surrounding community of commensal bacteria in a simulated small intestinal microbiome. This breakthrough could lead to a new treatment method for food-borne illnesses without the use of antibiotics.
A Vanderbilt team has deciphered the key to infecting entire mosquito populations with virus-killing Wolbachia bacteria. By hijacking insect reproductive systems, Wolbachia spreads rapidly, reducing risk of dengue and Zika virus transmission.
Researchers have discovered a genetic switch in the bacteria that can be targeted by small molecules to prevent its virulent form from emerging. By disabling this switch, the bacteria become more vulnerable to host defense molecules and disinfectants, making it a potential key for new antibiotics.
Researchers at Oxford University have identified a genetic catalyst, ampR, that accelerates the evolution of antibiotic resistance in bacteria. The study found that species carrying the ampR gene evolve resistance at a higher rate than those lacking it.
Researchers uncover how bacterial 'gene swapping' fuels emergence and spread of infectious diseases, including antimicrobial resistance crisis.
Researchers at Osaka University found that short trips to developing countries significantly increase the appearance of colistin-resistant bacteria in Japanese travelers. The study tracked 19 participants who traveled for less than 2 weeks and discovered nearly 90% of travel events resulted in resistant strains.
Researchers at the University of Notre Dame discovered that lytic transglycosylase Slt helps gram-negative bacteria Pseudomonas aeruginosa recover from antibiotic damage by repairing its cell wall. The enzyme rapidly attempts to rebuild the organism's structural entity, allowing it to survive and continue causing infection.
A team of researchers has found that a specific bacterium in the microbiota of leafcutter ants produces trail pheromones, which guide the ants to their nests without deviation. The pyrazine-producing bacteria were discovered by chance while investigating the ants' defense against parasitic fungi.
Pathogenic bacteria use a unique secretion system to export adhesins, which enable them to adhere to host cells. The study found that the adhesin protein needs to be modified with specific sugars by three enzymes acting in a specific sequence.
Researchers have identified a new class of antibiotics, odilorhabdins, which target bacterial ribosomes and disrupt protein synthesis. The unique compounds have shown potential in treating drug-resistant infections.
A University of Maryland researcher has discovered a protein produced by the bacteria that causes Lyme disease, allowing it to evade the body's first immune response. This breakthrough understanding has significant implications for treating tick-borne diseases like Lyme disease, which is increasingly chronic and prevalent.
Gonorrhoea superbugs have developed resistance to all known antibiotics, targeting human immune cells called macrophages. Monash researchers discovered the mechanism of evasion, which could lead to new strategies for combating gonorrhea infection.
Researchers have developed a process for creating ultrathin, self-assembling sheets of synthetic materials that can function like designer flypaper in selectively binding with viruses, bacteria, and other pathogens. The sugar-coated nanosheets are made from bio-inspired polymers known as peptoids and can effectively mimic cell surfaces.
A Tokyo Medical and Dental University-led study found that a protein signaling pathway enhances expression of genes encoding inflammatory mediators in macrophages, contributing to colonic inflammation. The research may lead to novel targets for IBD therapy.
A study has characterized the physical mechanism that enables a widespread bacterial pathogen to adhere to human host tissues. The researchers used atomic force microscopy and molecular dynamics simulations to reveal a unique cooperation of non-covalent hydrogen bonds in the adhesion process.
Scientists link whooping cough resurgence in the US to incomplete adult vaccination and declining vaccine efficacy over time. School-aged children are identified as a key transmission hub for future vaccination efforts.
Scientists have successfully created a simplified version of teixobactin, a natural antibiotic discovered in 2015, which has been shown to kill superbug-causing bacteria. The synthetic form was used to treat a bacterial infection in mice, demonstrating its potential as a new class of antibiotic drug.
Researchers identify SpdC as a key player in controlling S. aureus virulence, biofilm formation, and antibiotic resistance; Inhibiting SpdC may offer new approach to combating S. aureus infections.
Methanotrophic bacteria have the unique ability to take in copper for use in methane metabolism, a process that also digests the potent greenhouse gas. A Northwestern University study has pinpointed two proteins, MbnB and MbnC, as key players in this process.
Cytokinins have been found to play a vital role in the communication mechanisms of bacteria, plants and animals, regulating growth, development and disease resistance. The research has also uncovered new details on how cytokinins evolve and activate enzymes, challenging previous assumptions.
Researchers at KU Leuven have identified a protein, LIpA bacteriocin, that targets and kills the deadly Pseudomonas aeruginosa bacteria. The protein's mechanism of action involves binding to the bacterial cell wall protein BamA, effectively shutting it down and allowing the bacteria to die quickly.
Researchers studied 192 COPD patients over 15 years to understand how the nontypeable Haemophilus influenzae (NTHi) pathogen survives in human airways. The study reveals genetic changes that help the pathogen adapt and thrive, providing insights for developing a vaccine or treatment.
Researchers created an integrated imaging approach that uses multiple techniques to study Staphylococcus aureus infections. This method revealed new insights into abscesses and the bacteria's response to their environment. The findings have implications for vaccine and therapeutic development, as well as culture-free diagnosis.
Researchers developed a microbial detection technique that can reveal previously undetectable bacteria in various environments. KatharoSeq detected bacteria on surfaces at NASA's Jet Propulsion Laboratory, a neonatal intensive care unit, and an endangered abalone rearing center, revealing new insights for improving environmental health.
Scientists at Leibniz-Institute of Photonic Technology developed a rapid test that identifies bacterial strains and their resistances in under three hours. This breakthrough reduces the analysis time from 72 hours, enabling faster diagnosis and treatment for infectious diseases.
Water troughs on farms can spread toxic E. coli in cattle, which can then infect humans through contaminated beef and salad greens. Reducing water volume in troughs paradoxically increases E. coli prevalence.
Researchers at Emory University have discovered heteroresistance to colistin in already carbapenem-resistant Klebsiella pneumoniae, making it harder to monitor and treat. The findings pose a significant threat to public health, highlighting the need for novel diagnostics to rapidly detect colistin resistance.
Researchers found that nerve cells in the lungs suppress immune response during infection with Staphylococcus aureus, leading to poorer outcomes. Disabling these neurons improved immune cell recruitment and cleared bacteria from the lungs, boosting survival rates.
A study in house finches reveals that immune systems can inadvertently help bacteria become stronger over time, leading to a catch-22 situation. Researchers found that birds with stronger immunity to more virulent strains were more likely to exclude low-virulence strains from future infections.
A study found that incomplete immunity to a pathogen in birds makes it stronger and more dangerous for its next victim. The findings suggest that imperfection can be deadly, and the results have implications for human health.
Wolbachia blocks viral replication in mosquito cells by degrading viral RNA, with XRN1 playing a key role. The bacterium's ability to prevent disease transmission depends on the virus's replication rate.
Researchers identified a strain of Staphylococcus epidermidis that produces a chemical compound 6-N-hydroxyaminopurine (6-HAP), which inhibits the growth of some cancers. In mice exposed to UV rays, those with 6-HAP-producing bacteria had significantly reduced skin tumors.
Researchers discovered that Pseudomonas aeruginosa rapidly overexpresses genes coding for proteins capturing host's iron and uses lactate, lipids, and collagen as nutrients. This knowledge opens the way to develop innovative treatments to counter its strategies.