Articles tagged with Bacteria
Researchers at California NanoSystems Institute discover how Pseudomonas aeruginosa uses mechanical sensing to detect and bind to sugar trails, forming deadly biofilms that are resistant to antibiotics. This breakthrough could lead to new treatments for cystic fibrosis patients and other biofilm-related infections.
Researchers have discovered a promising new antibiotic, pre-methylenomycin C lactone, which is over 100 times more active than the current antibiotic methylenomycin A. This finding provides hope in the fight against antimicrobial resistance (AMR), which affects millions of people worldwide.
Researchers at Rice University have engineered living cells to use a 21st amino acid that illuminates protein changes in real time, providing a new perspective on the inner workings of life. This breakthrough addresses a long-standing challenge in biology by allowing scientists to track subtle protein changes within living systems.
Researchers found high floral scent chemodiversity attracts a wider variety of pollinators but reduces bacterial richness on flowers. The discovery supports the 'Filthy Pollinator Hypothesis', which proposes that diverse scents prevent detrimental microbial colonization.
A new study reveals that a specific E. coli strain can block the gut's defense mechanism by injecting a protein called NleL, allowing it to spread more easily. This discovery could lead to new treatments that target how bacteria cause disease.
Researchers at University of Hawaiʻi at Mānoa identified Caulobacter inopinatus, a previously unknown species found in seawater collected near Oʻahu's south shore. The discovery highlights the connection between land and sea ecosystems through microbial exchanges.
Researchers at UMC Utrecht discovered that converting monoclonal antibodies from IgG to IgM isotype can significantly broaden their ability to recognize and bind multiple human-relevant bacterial pathogens. This finding could guide the future design of antibody therapies against bacterial infections.
Researchers at the University of Houston discovered that T. phoenicis can enter dormancy to evade detection, highlighting the resilience of spacecraft-associated microbes and raising concerns about planetary protection. The findings may lead to better detection methods and more effective sterilization strategies in various industries.
A new study reveals rising rates of invasive SDSE infections across Australia, particularly among older Australians and those from remote regions. The research highlights disparities in health outcomes between regions and populations, emphasizing the need for improved surveillance and prevention strategies.
Researchers at the University of Oregon have discovered a new treatment approach using a two-drug combination that is 10,000 times more effective than single-drug antibiotics in killing bacterial cells in lab tests. This promising method could help shorten treatment time and reduce toxicity in patients with chronic wound infections.
The research team developed multifunctional nanocomposites that demonstrate excellent tumor-targeting capability through the EPR effect. Irradiation with near-infrared laser light achieved multidimensional therapeutic effects, including complete elimination of transplanted mouse cancers within 5 days.
Researchers have identified a minority of plasmids as the primary cause of multidrug resistance in bacteria, evolving to gain resistance through selective pressure from antibiotics. The study developed a model for plasmid evolution, highlighting pathways and predicting future outbreaks.
A yeast commonly found in the gut, Candida albicans, can make salmonella infections worse by binding to bacteria and triggering a chain reaction that allows it to invade cells. Removing Candida's ability to create arginine, an amino acid involved in protein synthesis, also reduces salmonella's ability to infect.
Researchers have discovered how Fusobacterium nucleatum binds to human cell receptors CEACAM1 and CEACAM5, which are frequently overexpressed on many types of cancer cells. This binding mechanism is crucial for developing novel antitumor therapies.
Researchers identified 27 species of bacteria and fungi that collectively increase the risk of pancreatic cancer by 3.5 times. The study analyzed saliva samples from 122,000 healthy individuals and found that boosting the mouth's microbiome may protect against cancer.
Prochlorococcus, a cyanobacteria and photosynthesizing organism, is threatened by ocean warming. The microbe's optimal temperature range is between 66 and 86 degrees, but rising temperatures may lead to reduced productivity and impact the marine food web.
A team of scientists has estimated that an average cell line acquires and retains roughly 13 percent of its genes every million years through lateral gene transfer. This process enables microbes to adapt to new environments and access essential nutrients. The study provides the first quantitative analysis of gene transfer rates across ...
Researchers discover how heme bound proteins catalyze hydrogen sulfide signaling in bacteria, leading to stress tolerance and antibiotic resistance. Disrupting this mechanism could inspire new antibiotic strategies against drug-resistant infections.
Researchers at RIKEN Center for Sustainable Resource Science identified ancient protein SCORE to help plants defend against various pathogens. By engineering synthetic SCORE variants, plants can be made resistant to multiple pathogen types.
Researchers have discovered that prolonged stress in Escherichia coli bacteria leads to the formation of aggresomes, which store mRNA and enhance survival and recovery from stress. This breakthrough highlights a new target for disrupting the protective mechanism, potentially reducing the risk of infection relapse.
Researchers studied a microscopic alliance between algae and cyanobacteria to understand how bacteria lose genes and adapt to increasing host dependence. The study found that the level of integration between the symbionts affects genome size, gene content, and metabolic pathways.
A new study reveals bacteria can survive inside dust particles transported through desert storms, carrying new genes that may affect human health. The research team identified a beneficial bacterium from the Bacillus subtilis family, which could enhance applications in agriculture, construction, and medicine.
A new species of bacteria of the genus Bartonella has been found in the Amazon National Park, Brazil. The DNA is similar to that of two other Andean species, B. bacilliformis and B. ancashensis, which cause Carrión's disease. No evidence suggests this new species can cause disease, but further studies are needed.
Researchers discovered that single bacterial cells carry a 'memory' of their past environments, passing it down through generations. This finding could explain why antibiotics and vaccines sometimes fail and may point to more precise treatments.
A new study found that probiotics significantly reduced the presence of antibiotic-resistant bacteria and multidrug-resistant bacteria in the infant gut, while also promoting a more typical gut microbiome. This breakthrough has major implications for the global AMR crisis, particularly for preterm infants.
Researchers identified peptidoglycan hydrolases in archaea that kill bacteria, highlighting the importance of surveying diverse microbes to discover new antimicrobials. These proteins were found in 5% of surveyed archaeal species and show promise as novel antibacterial compounds.
A National Institutes of Health (NIH)-supported clinical trial found that two intravenous doses of the antibiotic dalbavancin seven days apart are as good as daily IV doses of conventional antibiotics over four to six weeks for treating complicated Staphylococcus aureus bloodstream infections. The study results provide clear evidence f...
A new study reveals benztropine, a Parkinson's treatment, can boost the body's natural immune response to combat tuberculosis (TB) bacteria. The research found that benztropine can dramatically reduce TB bacterial counts in experiments with human and mouse immune cells.
Researchers have discovered that combining antimicrobial peptides from bees and frogs can prevent bacteria from mutating quickly, making them a promising alternative to traditional antibiotics. This finding could lead to safer disease control in livestock and agricultural settings.
Researchers use surface-enhanced Raman spectroscopy to analyze vaginal fluid biochemical fingerprints, detecting specific bacterial species like Lactobacillus iners. The portable device produces comparable results to high-end lab equipment, suggesting its potential for point-of-care monitoring.
Marcos de Moraes will study the molecular mechanisms and evolutionary roles of bacterial deaminase toxins, which can alter genetic material. He aims to develop tools for genome engineering and biotechnology while creating a lab environment accessible to students with disabilities.
Researchers have discovered a novel microbial consortium called AUN that produces exceptional tumor eradication in both murine and human cancer models. The therapy exhibits high biocompatibility and minimal side effects, offering a long-awaited solution for immunocompromised patients.
Researchers at Nara Institute of Science and Technology reveal the essential role of LptM in maturing and stabilizing the LptDE complex, a key component of Gram-negative bacteria's outer membrane. This finding provides fundamental insights that may support antibiotic design and advances understanding of bacterial virulence.
A new bacterial cellulose-based hemostatic dressing enables rapid and sustained bleeding control, accelerating wound healing through a triple synergistic mechanism. The material demonstrates excellent biocompatibility and overall safety in comprehensive biosafety evaluations.
Researchers at WashU Medicine discovered that mast cells stand guard at tiny gates through which fluid waste leaves the brain, mounting a response when a pathogen is detected to close the gates and prevent invaders from entering. Enhanced mast cell activity before an infection reduced bacterial load.
Researchers at ETH Zurich and Stanford University quantified the number of molecules produced by gut bacteria that reach the human body daily. This knowledge helps understand how the gut microbiome influences health and behavior.
A recent study found that bacteria employ amyloids, a key driver of Alzheimer's disease, as a molecular suit of armor against predatory bacteria. By understanding this mechanism, scientists may develop new strategies to combat antibiotic-resistant microbes and potentially even neurodegenerative diseases like Alzheimer's.
Japanese scientists have identified a novel genetic mutation in Streptococcus pyogenes associated with severe invasive infections. The mutation weakens bacterial growth in human blood and has been found unique to Japanese isolates, indicating a new pathogenic mechanism.
Researchers have identified a key defense mechanism in bacteria that protects them from viruses called phages, known as Kiwa. Phages are promising alternatives to antibiotics, but understanding how bacteria defend themselves is crucial to developing effective treatments.
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.
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.
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.
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 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.
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.