Articles tagged with Bacteria
Researchers discovered a compound, EPS3.9, produced by deep-sea bacteria that triggers pyroptosis to inhibit tumor growth and exhibit potent anti-cancer effects. The study highlights the importance of exploring marine microbial resources for developing new drugs.
Researchers at Duke University School of Medicine have identified a new system linking the microbiome to the brain, which influences behavior and appetite. The discovery was made by detecting flagellin in gut bacteria, triggering an appetite-suppressing signal to the brain.
The study reveals that four units of ZapA protein form an asymmetric ladder-like structure with FtsZ protofilaments, impacting the alignment of the Z-ring. The interaction between ZapA and FtsZ is dynamic, with cooperative binding and structural alterations, enabling the maintenance of FtsZ mobility.
Research finds MCR has bacteriostatic activity against bacteria, primarily through adhesion, disrupting cell walls and membranes, and altering permeability.
The study reveals diverse microbial profiles within different tumor types, with notable diversity in species composition and spatial localization. Functional effects of intratumoral microbiota on the tumor microenvironment range from immunostimulatory to protumor.
A new Korea University study provides the first species-specific health risk estimates for indoor airborne microbes based on animal toxicity data. The research determines that exposure to fungi may be unsafe even at levels below current guidelines, while bacteria are within existing regulatory limits.
A new study by Cornell University researchers suggests that a combination of efforts, including postharvest techniques and proper cold storage temperatures, can minimize the risk of human health from E. coli outbreaks in romaine lettuce. The study found that contaminated irrigation water is a significant contributor to contamination.
A new study from the University of Pittsburgh shows exercise improves cancer outcomes and enhances response to immunotherapy in mice by reshaping the gut microbiome. The research found that a specific compound called formate, produced by gut bacteria in exercised mice, was associated with better outcomes in patients with melanoma.
Scientists identified a unique protein in bacteria that can trap parts of the membrane, causing damage to other bacteria. This discovery reveals a new 'superfamily' of lipid-trapping proteins, which could have implications for antibacterial development and synthetic biology.
Researchers found that immunocompromised animals respond better to phage therapy due to depleted alveolar macrophages, which initially seemed to hinder its efficacy. The study highlights the importance of the immune system in phage therapy and may inform personalized treatment strategies.
Researchers at ETH Zurich have created a living material that can absorb CO2 from the air through photosynthesis and store it in a stable mineral form. The material, made with cyanobacteria, can be shaped using 3D printing and requires sunlight, water, and nutrients to grow.
Researchers used time-restricted feeding to restore microbial rhythms in mice fed a high-fat diet, identifying bile salt hydrolase as a key enzyme protecting metabolic health. Engineered gut bacteria showed improved glucose control and reduced body fat in mice, suggesting potential targeted therapies for obesity and diabetes.
Researchers have discovered the gene SLC35F2, which allows queuosine to enter cells, a micronutrient vital for health but previously unknown. This breakthrough opens doors to potential therapies for various diseases, including cancer and neurological disorders.
Researchers found three molecules produced by a bacterium in blood that reduced damage and inflammation in human skin cells. The findings, published in the Journal of Natural Products, suggest these compounds are promising candidates for future treatments to counteract skin aging.
A study of twins reveals that certain bacteria in the small intestine may trigger MS. Researchers identified two specific bacteria, Lachnoclostridium sp and Eisenbergiella tayi, which are associated with the disease. The findings suggest a new potential therapeutic target for MS treatment.
A recent study reveals that climate change is increasing the abundance of antibiotic-resistant bacteria in soils, which can lead to untreatable infections. The research highlights the interconnected nature of human, animal, and environmental health, emphasizing the importance of a 'One Health' approach.
A team of researchers at Binghamton University has developed a dissolvable battery using probiotics, which can provide a safe and sustainable energy source for transient applications. The battery utilizes electricity-producing bacteria that are commonly found in the human digestive system and are considered biocompatible.
Researchers discovered that bacteria can utilize fluid pockets created by yeast cells to speed up their movement and spread. This new mechanism reveals a key role for physical properties in microbial interactions, potentially enhancing bacterial colonization of environments with limited moisture.
A recent study found that Metagenomic next-generation sequencing (mNGS) can detect pathogens in 86% of cases, outperforming conventional microbiological tests which identified pathogens in only 67% of cases. mNGS guides treatment decisions and improves patient outcomes by detecting rare/atypical pathogens.
Researchers at UCSF found that certain gut bacteria can reduce chemotherapy side effects by clearing excess drugs and producing the protective vitamin K2. Patients with more beneficial bacteria had fewer side effects, suggesting that probiotics may help mitigate chemotherapy's impact.
Researchers have found new organisms that can capture carbon dioxide and clean pollutants from the environment. By exploring extremophiles in homes, scientists can gain insights into their unique characteristics and develop sustainable solutions.
A marine bacterium produces an organic detergent to attach to oil droplets, allowing it to feed on energy-rich chains. The synthetic pathway of this detergent involves three enzymes and has potential biotech applications for microbial production of key chemical compounds.
Researchers at the University of Würzburg have developed a new, efficient method for recording gene activity in bacteria. The MATQ-seq protocol achieves a high cell retention rate of 95% and detects the activity of 300 to 600 genes per bacterial cell.
Researchers have discovered that combining antibiotics with an enzyme called endolysin can protect against infection by resistant bacteria in all bodily organs, including the brain. This breakthrough could lead to a new treatment for meningitis, a life-threatening disease caused by resistant bacteria.
Researchers have developed a method to label and visualize the glycans in Mycobacterium tuberculosis cells, which may lead to faster and cheaper diagnostic tests for TB. The approach uses an organic molecule that reacts with specific sulfur-containing sugars found in only three bacterial species, including M. tuberculosis.
Scientists have engineered a new drug candidate to target the deadly Mycobacterium abscessus infection, which is growing threat among immunocompromised patients and those with certain lung diseases. The new findings offer a promising solution for cystic fibrosis patients who are most endangered by M. abscessus infections.
Researchers discovered how certain bacteria breathe by generating electricity, using a natural process that pushes electrons into their surroundings. This finding could enable new developments in clean energy and industrial biotechnology.
A new study by Virginia Tech researchers suggests that bacteriophages, or virus-like particles, may increase the sensitivity of gut bacteria to antibiotics. The team created a mouse model that allows them to control phage populations and found evidence that phages can exacerbate antibiotic damage.
A novel selective medium was developed to isolate Escherichia albertii, a previously uncharacterized species. The CT-PS-XR-MacConkey agar selectively differentiated E. albertii from other bacteria, including those in food samples. This finding has significant implications for the identification and study of this pathogen.
Researchers developed bacteria-enhanced graphene oxide nanoparticles that effectively destroy tumors through a three-pronged mechanism. The nanocomposites combine chemotherapy, immune activation, and photothermal heating to suppress tumor growth and activate strong immune responses in mice.
A new model predicts how bacteria navigate obstacles to spread, informing strategies for curbing infections or designing better drug delivery. The model focuses on three surface states: uninterrupted movement, sliding along surfaces, and getting stuck in corners.
Researchers discovered that sulfur bacteria from the Desulfobacteraceae family work together like a team to break down diverse organic compounds. By analyzing six strains, they found similar molecular strategies and a highly energy-efficient central metabolism pathway, enabling them to thrive in oxygen-free environments.
Researchers at the University of Basel have discovered that bacteria assemble their nanoweapons, known as type VI secretion systems (T6SS), in response to cell envelope damage. This rapid retaliation allows Pseudomonas aeruginosa to incapacitate attackers and thrive in diverse environments.
Scientists have uncovered the molecular structure of Mycoplasma mobile's twin motors that power its gliding ability, using cryo-electron microscopy. The complex structure reveals a new mechanism by which energy from ATP hydrolysis is converted into motility.
Researchers developed a synthetic microbiome therapy using limited strains of gut bacteria to effectively protect against C. difficile infections in mice. The treatment was as effective as traditional fecal transplants and had fewer safety concerns, offering a new alternative for treating this notoriously difficult-to-treat infection.
Researchers created laser-textured metal that stops bacteria from attaching, reducing biofilm buildup and making surface cleaning easier. The technique alters water-repellent properties of the metal, a key factor impacting bacterial growth.
Researchers identified a vulnerability in the bacterial machinery driving antibiotic resistance adaptation, which could lead to new counter-strategies. The study found that a genetic toolbox called integron system plays a crucial role in adapting resistance genes.
The winners of the Applied Microbiology International Horizon Awards 2024 have been named, including the One Health Microbiome Center at Penn State and researchers Dr. François Thomas and Dr. Helen Onyeaka.
Researchers have discovered two previously unknown bacterial species in deep-sea corals from the Gulf of Mexico. These bacteria have extremely reduced genomes and lack the ability to break down carbohydrates, surviving on amino acids instead. The discovery provides insights into the unique adaptations of deep-sea organisms.
A new study has identified novel strains of microbes that have adapted to use limited resources in cities, including those found in Hong Kong's subways and skin. These microbes can metabolize manufactured products, posing health risks if they are pathogenic.
A new study reveals how three species of bacteria coexist in biofilms by playing a game of 'nice' and then moving out when the surface becomes too crowded. The dominant species, Pseudomonas aeruginosa, disperses to allow other species to thrive.
Researchers at Japan Advanced Institute of Science and Technology have developed a novel method to culture antitumor bacteria using porous scaffolds, enhancing their anticancer properties and improving safety in animal testing. The approach resulted in improved survival rates in mice with breast cancer, including drug-resistant cases.
A team of researchers discovered a mechanism that determines the spiral shape of Rhodospirillum bacteria, revealing a novel link between cell shape and fitness. The study found that an outer membrane porin-lipoprotein complex modulates elongasome movement to establish cell curvature in R. rubrum.
Researchers discovered a non-virulent bacterium, Mycobacterium spongiae, that shares 80% of its genetic material with M. tuberculosis, shedding light on the disease's origins. The study provides valuable insights into the evolution and virulence of TB.
A team of researchers at UC Davis Health discovered a novel bioelectrical mechanism that allows Salmonella bacteria to navigate the gut lining and find vulnerable entry points. The study found that Salmonella bacteria detect electric signals in FAE, which helps them move towards openings in the gut where they can enter.
A $750,000 NIFA grant will support research on growing blackberries in soilless substrates to increase yields and improve fruit quality. The project aims to develop an integrated system for enhanced profitability and sustainability.
Researchers at ISTA discovered that misaligned protein filaments 'die' and re-assemble to form a well-aligned ring structure essential for bacterial cell division. This mechanism could lead to the development of synthetic self-healing materials.
A recent study revealed that specific bacteria produce a carbohydrate compound that induces settlement and metamorphosis in larvae of the warm-water tubeworm Hydroides elegans. This process, known as biofouling, can coat ship hulls and propellers, causing significant economic damage.
Researchers at the University of Illinois Chicago have developed a new dual-action antibiotic that targets two different cellular targets, making it nearly impossible for bacteria to evolve resistance. The antibiotic works by disrupting protein production and DNA structure, rendering random mutations ineffective.
Researchers found that rotifers acquire genes from bacteria and produce resistance weapons, such as antibiotics and antimicrobial agents. The team's findings suggest that rotifers could give important clues in the hunt for new antibiotics to treat human infections.
Researchers at MIT have developed a new way to make microbes hardy enough to withstand industrial processing, high temperatures, radiation, and long-term storage. The method involves mixing bacteria with food and drug additives, resulting in stable formulations that can be used in various applications.
Researchers found that disease transmission between farms persists despite movement restrictions, with cattle movement activities being the strongest predictor of farm infections. The study calls for a multifaceted approach to managing Salmonella Dublin, including closer monitoring and targeted interventions.
A new study by RIKEN CSRS shows that biomass from purple photosynthetic marine bacterium Rhodovulum sulfidophilum is an excellent nitrogen fertilizer, effective as inorganic synthetic fertilizers but with lower environmental side effects. The biomass boosts plant growth without altering soil pH or salinity.
Lopatkin's lab will investigate how bacterial metabolism contributes to antibiotic resistance using sophisticated tools and techniques. The research aims to identify drug-resistance mutations that arise in bacteria adapting to different antibiotics and metabolism-altering chemicals.
A recent study discovered a unique vaginal microbiome in patients with gynecological cancers, which could serve as a diagnostic biomarker. The researchers found a decrease in beneficial bacteria and an increase in potentially pathogenic microorganisms, leading to promising results for early detection.
A novel real-time PCR method has been developed to detect and identify the emerging zoonotic foodborne pathogen E. albertii, which is often misidentified as E. coli. The study found that E. albertii can survive in the human intestinal tract for approximately four weeks.
Researchers discovered that two species of marine bacteria work together to produce vitamin B12, essential for metabolism and survival of many marine organisms. The bacteria release building blocks into the water, which are then combined to form the vitamin through a complex process involving viral infection.
Scripps Research scientists have identified the role of polyphosphate in bacterial resting states, which can evade antibiotics. Blocking polyphosphate production may be an effective way to target slow-growing and non-growing phases of bacteria.
A study published in Cell reveals a detailed catalogue of bacteria living in cancer metastases, including links to therapy efficacy and tumor cell activity. The research provides new insights into how bacteria interact with cancer cells and their surroundings.
The study investigates microbial community and antibiotic resistance genes (ARGs) in the western Qinghai Lake basin. ARGs were found to be significantly lower than in strong anthropogenic activity areas, but a correlation with I1 was observed, indicating potential rapid proliferation.