Articles tagged with Bacteriology
Researchers have found that Prevotella melaninogenica can survive in the presence of oxygen, challenging a long-held assumption about its obligate anaerobic nature. The study also reveals new insights into the bacteria's ability to consume oxygen and deal with oxidative stress.
Researchers explore bacterial extracellular vesicles as a tool for cancer diagnosis and treatment, with potential for targeted delivery of therapeutic molecules and immunotherapy. However, consistency and safety remain major challenges in this emerging field.
Researchers discovered that bacteriophages play a critical role in distributing nutrients, promoting microbial diversity, and supporting gut health by releasing vitamin B12. The study found that phage infection is necessary for B12 release, and the nutrient specifically drives growth in dependent microbes.
A multidisciplinary study has identified a novel biofilm regulatory protein called Biofilm Architecture Regulator (BatR) and its role in Pseudomonas aeruginosa infections. The discovery may lead to new targets for anti-infective treatments, including those for people with cystic fibrosis.
A new liquid-based platform called 'floatony' can form and maintain complex three-dimensional microbial structures while preserving molecular diffusion, spatial structures, and cell mobility. This approach could offer new ways to study gut microbiota, biofilms, and other spatially organized microbial communities.
Researchers are studying foul-smelling substances to understand what attracts the New World screwworm, a flesh-eating parasite, to its favorite meal - open wounds. The goal is to develop better lures for trapping this serious threat to the livestock industry.
A global study analyzed 16.5 million DNA sequences from 23 cities across five continents, revealing a clear distance-decay pattern for bacterial communities. The findings show that port size, wastewater discharge, geography, and maritime activity closely associate with the structure of bacterial communities worldwide.
Researchers discovered that certain bacteria produce an enzyme to break down antibiotics, enabling their survival. This 'altruistic cell death' mechanism allows the bacteria population to thrive, making existing and future antibiotics less effective.
Researchers analyzed 49 journal articles on bacterial cellulose-derived carbon electrodes for supercapacitors, finding that preservation of the nanofiber network and mechanical properties are crucial for performance. The study highlights BCC's potential to outperform commercial activated carbon under comparable conditions.
A modular reporter phage platform has been developed to rapidly detect multiple Klebsiella pneumoniae capsule types. The platform uses a NanoLuc luciferase reporter gene and demonstrates high sensitivity and specificity, with the ability to distinguish between live and dead bacteria.
Researchers found bacteria can forcefully eject cells from communities as a survival mechanism, utilizing self-generated hydrogels. This ability allows biofilms to disperse and colonize new areas, potentially aiding in the elimination of harmful bacterial communities without antibiotics.
A new study found that bacteria in contaminated brick kiln soils reorganize their communities, strengthen stress-response functions, and activate detoxification genes. This understanding can help design more effective microbial restoration strategies for industrial sites.
Researchers propose a voluntary labelling scheme using 'STABILISED' to indicate products with minimal risk of Listeria infection. The scheme aims to help consumers choose safe products and reduce the number of people falling ill with Listeria infections.
Researchers uncovered the genetic history of Acinetobacter baumannii, tracing its evolution over decades to identify key resistance traits and global spread. The study provides valuable insights for guiding policies on antibiotic use and combating this serious healthcare threat.
A unique regulatory protein called VadK has been identified as a key player in Mycobacterium tuberculosis survival. The enzyme acts as a molecular control switch, enabling the bacterium to access essential energy sources and cause disease.
Researchers found that over-the-counter probiotics contain only 36 unique species of bacteria, with most common species being forms of Lactobacillus. The analysis suggests a lack of consistency in the combination of species used to support gut health and vaginal health claims.
Researchers found Escherichia albertii bacteria in 77% of water samples and 56% of wild raccoons, suggesting a pathway for transmission from wildlife to humans. The study's findings emphasize the need for a 'One Health' approach to address zoonotic diseases.
Researchers identified five immunomodulatory proteins in Borrelia recurrentis that prevent activation of the human complement system, allowing the pathogen to survive in the human body. These Chi proteins also convert plasminogen into active plasmin, giving Borrelia recurrentis a significant advantage in spreading after infection.
Researchers found that daunorubicin effectively inhibits bacteriophage infection in bacteria, triggering mutual destruction and killing the bacterial cell. The discovery opens up new avenues for phage therapy development, especially against antibiotic-resistant infections.
Researchers have developed an approach to prevent transmission of E. coli K1 bacteria to newborns, reducing the risk of meningitis by up to 80%. The treatment involves an oral vaccination that weakens the bacteria, followed by a harmless probiotic bacterium that competes with the weakened pathogen for food.
Researchers at Institute of Science Tokyo genetically engineer cyanobacteria to produce sulfated polysaccharides, a sustainable route for manufacturing biomaterials. The study demonstrates the feasibility of engineering complex biosynthetic pathways in photosynthetic organisms.
Researchers have discovered how wall teichoic acids control bacterial growth, providing insights into the nature of Earth's earliest life forms. The study reveals that eliminating these acids rapidly arrests cell wall synthesis and activates enzymes that promote rod-shaped growth.
A Tulane University study found that long-term antiretroviral treatments did not fully restore key immune functions to protect and repair the gut lining in nonhuman primates with SIV. The researchers discovered that diet-derived compounds from vegetables like broccoli and cabbage may support immune activity involved in gut repair.
Osaka Metropolitan University researchers developed a light-driven method to rapidly collect microscopic targets, outperforming traditional techniques. The technique concentrates bacteria between 1000-10,000 times faster than existing approaches, paving the way for early disease detection and analysis of nanoparticles.
Researchers engineered an anaerobic bacterium to target periodontitis, reducing key pathogens and promoting tissue repair. The treatment lowered oxidative stress and restored the oral microbiome, offering a potential therapeutic solution for inflammatory diseases.
Researchers at NUS create Lytic Selection and Evolution (LySE) platform, harnessing modified bacteriophage to rapidly create and test genetic changes. After five cycles, plastic degradation improved by over 50%, demonstrating a faster and more controllable method for training bacteria to consume plastics.
A naturally occurring fatty acid called geranylgeranoic acid (GGA) has been discovered to disrupt the ability of MRSA bacteria to stick to human molecules and detect their environment, making it harder for them to cause disease. Researchers tested GGA in mice and found it prevented skin lesions and reduced infection severity.
Researchers found that antibiotics disrupt gut microbiota, suppressing protective immune system pathways and increasing severity of A. baumannii pneumonia. The study highlights the gut-lung connection as a potential therapeutic target for hospital-acquired lung infections.
Scientists have mapped the structure of Vibrio bacteria with unprecedented detail, revealing a new target for treatment. The findings could provide a solution to life-threatening infections linked to antibiotic resistance.
Researchers at DTU discover three types of lactic acid bacteria that can effectively produce plant-based yoghurt alternatives, inhibiting harmful bacteria and breaking down sugars. The bacteria also improve the product's texture and extend shelf life.
Researchers at Hiroshima University have developed a new approach to predicting harmful algal blooms by coupling three models and accounting for plankton species interactions. This improved forecasting can help prevent economic losses and protect fish stocks in countries like Chile, which has been hit hard by these blooms.
A Phase I clinical trial of a human monoclonal antibody for Lyme disease demonstrates its safety, tolerability, and pharmacokinetics. The treatment, TNX-4800, provides lasting serum concentrations and has the potential to offer passive immunity against the disease.
Researchers propose a new framework for understanding microbiome health, focusing on the system's ability to reorganize in response to changing conditions. This shift helps explain inconsistent results of microbiome-based treatments, highlighting the importance of functional dynamics over static composition.
A genetic strategy is introduced to break the trade-off between rice disease resistance and yield by utilizing a pathogen-inducible promoter. The approach enables broad-spectrum disease resistance without compromising plant growth and yield.
A review by an international team of researchers highlights that air monitoring is essential for global public health strategies, as airborne antibiotic resistance genes can spread silently between humans, animals, and the environment.
Research reveals that viruses can eavesdrop on each other using chemical signals, which may not always benefit the listener. This 'cross-talk' between species can lead to incorrect decision-making by the eavesdropper.
Researchers discovered 30 bacterial species that break down biodegradable plastic, revealing speed and factors influencing degradation. The study highlights the importance of understanding microbial communities and plastic chemistry in plastic biodegradation.
Research shows that bacteria harbor resistance genes may respond differently to antibiotics under non-standard conditions. This affects treatment efficacy and contributes to understanding antimicrobial resistance development and spread. Understanding these variations is crucial to combat global public health threats.
Researchers at King's College London discovered that certain genetic features of gut bacteria predict long-term survival after fecal transplants. These stable gene groups are linked to traits that help good bacteria compete and survive, and may be used as a source of future drugs.
Researchers have discovered that Porphyromonas gingivalis, a keystone pathogen driving gum disease, carries an internal genetic brake controlling its aggression. By locking this brake in place, future treatments could silence the pathogen while leaving beneficial bacteria untouched.
Emerging microbially-powered technologies can convert up to 35% of wastewater's chemical energy into electricity and extract valuable nutrients. This approach could power agriculture, global sanitation and its own treatment, while reducing pollution and overcoming regulatory obstacles.
Researchers explore how METs convert organic waste into electricity, fuels, fertilizers, and usable water. Pilot deployments demonstrate its potential to reclaim energy from 359 billion cubic meters of wastewater annually.
A team of CDI scientists has identified the genetic basis of Acinetobacter baumannii's resistance to Cefiderocol, a last-line antibiotic. The study provides insights into the evolution of resistance and highlights the need for integrated surveillance strategies to prevent further resistance.
A novel vaccination approach cleared harmful gut bacterium Clostridioides difficile (C. diff) in an animal model of infection. The experimental vaccine protected against illness, death, tissue damage and infection recurrence through mucosal immunization.
Researchers have identified optimal conditions for bacterial growth on hydrogels, finding that firmer, lower water content materials consistently slow bacterial expansion. The study's findings also reveal a selective mechanism at work, where negatively charged gels repel bacteria harbouring negatively charged groups.
A Dartmouth study found that plasmids can form tight clusters within bacterial communities, making them resistant to antibiotics and clinical treatments. This phenomenon introduces a new avenue for bacterial infections to become more difficult to treat.
Researchers developed a novel CRISPR-based technology called pPro-MobV that can remove antibiotic-resistant elements from bacterial populations. The new tool uses gene-drive thinking and has the potential to combat antibiotic resistance in healthcare settings, environmental remediation, and microbiome engineering.
A new study by University of California San Diego researchers found that fossil fuel plastics can amplify harmful algae blooms by killing off zooplankton, leading to an increase in algal concentrations. In contrast, biodegradable plastics had a smaller impact on zooplankton and algal communities.
A study published in Science of The Total Environment found that e-cigarette exposure alters gut microbiota composition and affects neurobehavior in zebrafish. The researchers observed disruptions in the gut microbiome, with reduced microbial network stability and altered community composition, suggesting potential health risks.
Researchers at NUS Medicine discovered that genetic vectors can efficiently spread antibiotic resistance within the gut, enabling even highly virulent bacteria to acquire drug resistance. This finding sheds light on the emergence of 'superbugs' in healthcare settings.
Researchers have identified a previously unknown mechanism that can reduce the risk of allergies and asthma in children. Certain bifidobacteria produce a substance called 4-hydroxyphenyl lactate (4-OH-PLA), which dampens immune responses to allergens, reducing the production of IgE antibodies.
Cyanobacteria can absorb and break down guanidine, using it as their sole nitrogen source, according to a new study. The ability to utilize guanidine is an advantage for colonization, despite its previous classification as a toxic substance.
Bacteria move through liquids using propellerlike tails called flagella, which alternate between clockwise and counterclockwise rotation. Researchers propose a tug-of-war mechanism instead of the traditional equilibrium 'domino effect' model, where proteins lining the tail exert pressure on their neighbors.
Research reveals that single-celled organisms are among the first to colonize newly formed lava environments, thriving in scarce water and nutrient conditions. As diversity stabilizes over time, rainwater plays a critical role in shaping microbial communities, suggesting an unexpected link between weather phenomena and life on Earth.
A UCLA study found that gut microbes are evolving differently in industrialized and non-industrialized parts of the world. Gene variants associated with starch digestion have
Researchers have created a novel synthetic enzyme that efficiently converts CO2 into formic acid, opening up new possibilities for biotechnological production of valuable chemicals and fuels. The enzyme, FAR, tolerates high concentrations of formate and is stable in both living cells and cell-free systems.
Researchers at Chalmers University of Technology have developed a new material that uses metal-organic frameworks to physically injure and kill bacteria, preventing biofilm formation without antibiotics or toxic metals. This innovation eliminates the risk of antibiotic resistance and has potential applications in various industries.
The discovery of five new bacteriophages in Lund University's Botanical Gardens' ponds has significant implications for phage research and treatment of bacterial infections. The newly-discovered phages were isolated using a motile E. coli strain, which was specifically designed to attract the viruses.
Researchers have catalogued a new collection of bacteria-eating viruses to combat the growing threat of hospital superbug Klebsiella pneumoniae. The open-source phage library offers scientists a valuable resource to develop new treatments and improve understanding of phages and bacteria interactions.
The AMR portal connects bacterial genomes, resistance phenotypes, and functional annotations, providing a central hub for global AMR research. It brings together experimental and computational data types, allowing researchers to investigate how genetic variants translate into antimicrobial resistance.