Articles tagged with Bacteriology
The Asia-Pacific region's H. pylori treatment practices show a growing consensus on primary and secondary prevention, but differences in antimicrobial resistance and medical resources persist. Establishing uniform standards for gastric cancer prevention will be crucial to addressing these disparities.
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.
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 at the Technical University of Denmark have found that adding biochar to chicken feed can significantly reduce campylobacter levels in free-range chickens. The study, published in Poultry Science, demonstrates an 80% reduction in campylobacter and suggests a potential tool for improving public health.
Researchers identified a unique genetic signature that can predict bacterial antibiotic resistance. The finding could help develop precision-based treatments and reduce overuse of antibiotics.
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.
Researchers discovered that serine inhibits the cell wall remodeling necessary for Clostridium perfringens to form spores, preventing food poisoning. The study provides insights into the underlying mechanism of spore formation and may lead to new strategies for preventing foodborne illnesses.
In-shell pecans are susceptible to pathogens due to soil contact with wildlife and livestock. A recent study found that hot water treatment significantly reduced Shiga toxin-producing E. coli populations on pecans, regardless of treatment time, and prevented cross-contamination.
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.
Providencia rustigianii carries a type III secretion system and cytolethal distending toxin virulence gene, increasing its pathogenicity, similar to Salmonella.
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 have developed an antibody that can identify Campylobacter jejuni and inhibit its growth, reducing pathogenicity. The antibody targets a multiprotein complex essential for the bacteria's energy production, making it a potential target for therapy and vaccination.
Researchers at Gladstone Institutes have developed a streamlined way to engineer bacteriophages, viruses that naturally kill bacteria. The new technique uses retrons to edit phage genomes, allowing for the creation of numerous variants and paving the way for alternative treatments for antibiotic-resistant infections.
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.
Researchers found that brief, temporary changes to bacterial gene regulation imprint lasting changes within the network that are passed on to offspring. This discovery challenges long-held assumptions of how simple organisms transmit and inherit physical traits.
Researchers found that Prunin laurate, derived from citrus and coconut biomass, inhibits bacterial growth in periodontal pathogen Porphyromonas gingivalis. The compound is tasteless and hypoallergenic, making it a potential inexpensive antimicrobial solution for preventing oral inflammation.
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.
A team of POSTECH and ImmunoBiome has discovered a dietary-derived bacterial strain, IMB001, that induces nutritional immunity and boosts anti-tumor responses. The strain works by skewing tumor-infiltrating macrophages toward an inflammatory phenotype, leading to increased cell death of rapidly multiplying tumor cells.
A research team has identified molecular mechanisms that weaken the virulence of Pseudomonas aeruginosa, a key step towards developing new antibiotics. Medium-chain free fatty acids regulate PlaF enzyme activity, which can be targeted to inhibit the pathogen's deadly effects.
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.
Researchers at Osaka Metropolitan University developed a lysin from a bacteriophage that targets Staphylococcus hominis, a key contributor to body odor. The study's results could lead to a new treatment option for axillary odors, a common dermatological disorder.
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.
A handheld device developed by Osaka Metropolitan University's team can detect multiple bacterial species within an hour, including disease-causing E. coli and salmonella. The sensor uses organic metallic nanohybrids to distinguish electrochemical signals on the same screen-printed electrode chip.
The study highlights the emergence and spread of harmful pathogens due to climate change. The medical community must update their education and training to combat global warming and its impact on disease behavior.
A new study by Uppsala University researchers demonstrates that heteroresistance, a common transient resistance in bacteria, can facilitate the development of antibiotic resistance. The study found that heteroresistant bacteria carrying more resistance gene copies result in slower growth and increased risk of treatment failure.
A team of researchers has developed a reliable method to define bacterial species and strains by analyzing genetic diversity. The study found that natural gaps in genetic diversity can be used to differentiate between species, with members of the same species showing high levels of genetic relatedness.
Researchers from Osaka University discovered that a specific bacterial interaction causes the production of methyl mercaptan, a major contributor to bad breath. The interaction between Streptococcus gordonii and Fusobacterium nucleatum leads to increased methyl mercaptan production, which is driven by methionine metabolism.
Scientists identified a novel bacterial species resistant to multiple antibiotics, found in hospital wastewater and isolated from a patient's swab. The discovery highlights the need for continued research on antimicrobial resistance and its impact on global health.
Researchers have discovered that natural antimicrobial predatory bacteria, Bdellovibrio bacterivorous, produce fibre-like proteins on their surface to ensnare prey. This breakthrough enables scientists to use these predators to target and kill problematic bacteria in healthcare, food spoilage, and the environment.
Research at University of Oxford found that diverse gut bacteria communities can block the growth of harmful pathogens, with certain species playing a crucial role. The communities work by consuming nutrients needed by the pathogen, and increasing diversity boosts protection.
Researchers found that E. coli bacteria use iron levels to store information about behaviors like swarming and forming biofilms. These iron-based memories persist for at least four generations before disappearing, helping bacteria make informed decisions about their environment.
Researchers at the University of Basel have discovered that bacteria support each other across generations, sharing nutrients and forming intricate three-dimensional structures. This cooperative behavior enables bacterial communities to be more resilient and adaptable, highlighting the complexity and dynamics within microbial communities.
Researchers have identified a unique bacterial transcription mechanism that enables specific recognition of promoters. This discovery has implications for the design of gene regulation tools and may inform synthetic biology engineering.
The Cumming Global Centre for Pandemic Therapeutics is offering global grants of up to $200,000 per annum for three years to develop novel therapeutics for pathogens of pandemic potential. Researchers are invited to submit expressions of interest for Round Two of the Foundation Grants program.
A new study confirms the presence of deadly Vibrio bacteria in Florida's coastal waters following Hurricane Ian. The research, led by University of Maryland senior author Rita Colwell, found high levels of pathogenic Vibrio parahaemolyticus and Vibrio vulnificus, particularly in oyster samples from Lee County.
Researchers have discovered a novel enzyme family related to bacterial pathogenicity in Gram-negative bacteria. The study revealed that enzymes involved in OPG synthesis and regulation play crucial roles in bacterial infection capability.
Acinetobacter baumannii bacteria can form special cells that survive for long periods in a dormant state, making antibiotic treatment challenging. The discovery could lead to new treatment concepts by targeting proteins involved in the transition to this slumber state.
A team of scientists has discovered a second toxin produced by the cyanobacterium Aetokthonos hydrillicola, which is highly toxic and similar to substances used in cancer treatment. The findings could lead to the development of new anti-cancer drugs.
A team at UW–Madison has compiled 270 combinations of molecules with the potential for sustained autocatalysis, focusing on comproportionation reactions. This cookbook-like approach may help identify conditions for life elsewhere in the universe, guiding future research.
Researchers highlight single cell protein as a promising alternative protein source from microorganisms, which can thrive on diverse waste materials and enhance socio-economic sustainability. The review also emphasizes the need for consumer acceptance to effectively commercialize this eco-friendly protein source.
Australian researchers analyzed over 1,300 Golden staph strains, linking specific genes to antibiotic resistance and the bacteria's ability to linger in the bloodstream. The study highlights the diagnostic power of integrating clinical and genomic data to develop targeted solutions for deadly superbug infections.
A new method enables efficient isolation of raccoon-borne Escherichia albertii from fecal samples, providing insights into its epidemiology and facilitating improved control of food poisoning. The developed culture medium selectively promotes the growth of E. albertii at a rate of up to 48%.
Scientists engineer bacteria to target cancer cells, utilizing NIR fluorescence and photothermal conversion to selectively eliminate malignant cells. The study demonstrates effective optical and immunological functions in a mouse model of colon cancer.
Researchers discovered that bacteria employ 'surfing' proteins called ParA/MinD ATPases to transport cargo across the cell. These systems interact with each other, enabling complex movements before cell division. The findings provide a basis for developing synthetic biology tools and understanding bacterial pathogens.
Researchers find that Acinetobacter baumannii can achieve significant functional modifications in protein complexes over short evolutionary time spans, particularly in hair-like cell appendages. This diversity may affect the pathogen's interaction with its environment and inform personalized therapies.
Researchers have confirmed the presence of autoproteolytic effects in Clostridium thermocellum, essential for transmembrane signal transduction. This discovery expands our knowledge of bacterial signaling mechanisms and highlights the complexity of prokaryotic signaling pathways.
Researchers at Penn State discovered that bioluminescent bacteria use a small RNA molecule called Qrr1 to coordinate their behavior and colonize the squid's light organ. This mechanism is likely widespread among bacteria, enabling them to exploit quorum sensing pathways.
Research reveals that asymptomatic throat carriage of Streptococcus pyogenes is the primary source of Group A Streptococcus (GAS) infections in high-risk communities. This discovery challenges previous understanding of GAS transmission and has significant implications for public health approaches, vaccine development, and future research.
A vaccine originally developed to prevent bacteria-caused diarrhea has been found to also help infant nonhuman primates grow faster, according to a new study. The researchers found that vaccinated baby monkeys were taller than the unvaccinated when measured from head to toe, with a significant improvement in growth rate.
Researchers have discovered how Golden staph, a common bacterial infection, hides inside human cells to avoid detection. The study used InToxSa, a new methodology that enables the study of Golden staph behavior on a large scale.
Researchers at Georgia Institute of Technology have discovered a gene that drives the switch between chronic and acute P. aeruginosa infections. The gene encodes a small RNA called SicX, which plays a vital role in bacterial respiration under low oxygen conditions.
A new SCIVVS approach accelerates probiotics quality assessment by rapidly counting live bacteria, identifying species, and testing viability in just five hours. The method also tracks the source of individual cells in a sample, promising to transform current practice in quality control and intellectual-property protection.
Researchers from Penn Dental Medicine and UNC identify a key role for Selenomonas sputigena in causing tooth decay, particularly when partnered with Streptococcus mutans. The bacteria form protective biofilms that lead to acid production and cavity formation.
Researchers found two E. coli strains resistant to colistin and third-generation cephalosporins in dogs and cats in Japan. The study highlights the need for 'One Health' approaches to understand companion animals' role in antimicrobial resistance transmission.
A new study reveals that different species of bacteria colonize specific areas on diatoms, reflecting their metabolic properties. The findings provide insight into the complex interactions between algae and bacteria in marine environments.
Small vesicles released by intestinal bacteria induce immune activation and progression of liver cirrhosis, as well as reduction of serum albumin level, leading to edema and ascites in patients with cirrhosis.
An international research team analyzed over 400 Omnitrophota genomes, uncovering details about their biology and behavior. The study found that Omnitrophota are hyperactive with high metabolic rates, possibly as predators or parasites of other microorganisms.
Researchers discover that graphene oxide's surface oxygen content is crucial for its antibacterial activity, with different interaction modes leading to distinct effects. Understanding this relationship can help design safer materials and combat antimicrobial resistance.