Researchers have discovered how bacteria respond to stress, shedding light on their infectious potential and the development of new drugs to combat bacterial infections. The stressosome molecule protects cells from external danger, triggering a response to adapt to changes in environment.
Research found that low levels of disinfectants can make Staphylococcus aureus remove toxic chemicals from the cell more efficiently, potentially making it resistant to antibiotics. This increase in efflux pumps may lead to the emergence of resistant bacteria, threatening patients with infections.
Researchers found that probiotic bacteria can efficiently mature monocyte-derived dendritic cells, leading to the production of specific cytokines. The maturation process was triggered by different bacterial strains, with some inducing pro-inflammatory and others anti-inflammatory responses.
A team of scientists has discovered that a molecule produced by a common gut bacterium activates signaling pathways associated with cancer cells. The research, published in the Journal of Medical Microbiology, sheds light on the way gut bacteria can cause colon cancer.
Researchers found that oral bacteria can cause platelets to clot in blood vessels, blocking blood flow and leading to heart attacks. Studies demonstrated that certain proteins on the bacteria play a crucial role in this process, highlighting the need for new treatments and vaccines.
Scientists have developed a colour-coded bacteria system to quickly detect oil spills and pollution, providing a more environmentally friendly alternative to current methods. The technique uses harmless bacteria that can detect different chemicals and warn of spreading pollution.
A new light-activated antimicrobial treatment has shown promise in killing a wide range of bacteria, including drug-resistant MRSA, in infected wounds and burns. The treatment uses indocyanine green dye activated by near-infrared light to produce toxic molecules that rapidly kill the bacteria.
A study found that sesame seed extract and konjac gum can bind to E. coli and Salmonella bacteria, potentially preventing them from entering host cells. This natural approach may offer protection against gastro-intestinal infections or reduce symptom severity.
Researchers found that certain bacteria can harness iron from the environment or human host using a unique gene. This discovery could lead to new ways to target diseases like tuberculosis by limiting access to essential iron sources.
Researchers at the Helmholtz Center for Infection Research discovered that biofilm bacteria use violacein, a pigment produced in response to threats, to neutralize attackers and trigger a suicide mechanism in phagocytes. This finding presents a new avenue for combating human parasites causing diseases like sleeping sickness and malaria.
A new study reveals that cranberry juice alters the thermodynamic properties of bacteria in the urinary tract, creating an energy barrier that prevents attachment. This effect occurs at concentrations comparable to those found in the urinary tract, suggesting regular consumption may prevent UTIs.
Recent research suggests that almonds contain prebiotics that can stimulate the growth of beneficial gut bacteria, supporting overall digestive health. The study found that finely ground almonds significantly increased levels of certain beneficial gut bacteria, with this effect being attributed to the presence of almond lipids.
Scientists have discovered a molecular trick used by Salmonella to evade the immune system, giving it crucial time to establish itself in the host before symptoms appear. The AvrA protein helps reduce inflammation, allowing the bacteria to avoid detection and spread more easily.
Researchers discovered that TB bacteria can form biofilms on surfaces, leading to genetic and physiological differences from lab-grown strains. This finding suggests a possible cause of TB relapses despite intensive treatment.
Researchers discovered that chickens are born with healthy intestinal bacteria, challenging conventional wisdom on how birds acquire these microorganisms. The study suggests that administering probiotics in ovo could improve growth and reduce the risk of food-borne illness.
Researchers discovered a diverse community of beneficial bacteria within chicken embryos, suggesting that birds acquire these microbes from their egg environment. This finding could lead to improved poultry production and reduced risk of foodborne illness by administering probiotics in ovo.
Researchers at Caltech identified a sugar molecule produced by beneficial gut bacteria that induces immune cells to produce anti-inflammatory molecules, potentially treating inflammatory bowel diseases. The discovery suggests a new approach to treating human diseases linked to the loss of beneficial microbial interactions with our bodies.
Researchers at MIT have developed ultrathin films made of polymers that can control bacterial adhesion, offering a potential solution for reducing hospital-acquired infections. The films can be designed to prevent hazardous bacteria accumulation or promote growth of desirable bacteria.
Scientists discovered that fecal bacteria survive better in sand than seawater, with higher counts in dry sand above the intertidal zone. This finding has implications for beach managers, who may need to sample water further from shore to avoid complications of bacterial run-off.
Using a bioinspired approach, researchers mimicked magnetotactic bacteria to synthesize ferromagnetic nanoparticles with desirable magnetic properties. The team successfully produced cobalt-ferrite nanoparticles, which have more desirable magnetic properties than magnetite.
Researchers found that lactic acid bacteria in Feta cheese can kill off dangerous food-poisoning bacteria like Listeria. The unique taste of local cheeses is mainly due to the enterococcal bacteria they contain, which have natural anti-bacterial properties.
Researchers develop materials impregnated with bacteria-killing viruses to prevent MRSA infection spread in hospitals. The technique allows the viruses to stay active for over 3 weeks, killing bacteria on surfaces and in wounds.
Researchers have identified a finely tuned control system in Pseudomonas bacteria that enables them to form biofilms, which contribute to chronic infections. The WspR enzyme plays a crucial role in this process, and its regulation helps balance the production of c-di-GMP.
A £285,000 grant from The Wellcome Trust will support the development of new infection-control methods that do not rely on conventional antibiotics. The team will focus on understanding how Streptococcus bacteria interact with host tissues and proteins to identify targets for prevention.
Research found that airborne bacteria are globally distributed and may cause freezing at warmer temperatures, leading to the formation of rain. The bacteria can multiply and form groups on plants, creating a cycle of precipitation that could help reduce drought.
Scientists at MIT have discovered a new type of antibiotic produced by Rhodococcus bacteria in response to a competing strain. The antibiotic, rhodostreptomycin, shows promise in treating Helicobacter pylori-caused stomach ulcers.
Researchers at Ohio State University identified two proteins, MprF1 and MprF2, that contribute to bacterial resistance by altering the electrical charge of cell membranes. This finding could lead to the development of new drugs targeting bacterial resistance at its cellular source.
Research suggests that beneficial bacteria Lactobacillus in the vagina can reduce HIV virus levels in genital secretions, making it harder for the virus to spread. The study found a link between Lactobacillus production of hydrogen peroxide and lower vaginal HIV levels.
A hospital outbreak in Barcelona found that contaminated body moisturizer caused life-threatening infections in five critically ill patients. The bacteria Burkholderia cepacia was found to be present in the product, which had not been invaded after opening.
Researchers discovered that coastal bacteria are generalists, capable of performing multiple processes when it comes to carbon cycling. The study used metagenomics to analyze bacterial genomes and showed that these microorganisms can adjust their roles depending on the local food supply.
Researchers have discovered a weakness in the defenses of the anthrax bacterium that could be exploited to produce new antibiotics. Nitric oxide is a critical part of Bacillus anthracis's defense against the immune response, and disrupting this system could make it vulnerable to attack by macrophages.
Researchers discover polyphenols in winemaking waste inhibit the ability of bacteria to cause cavities and form biofilms, potentially leading to new treatments for oral diseases. The findings also suggest the compounds may hold clues for lessening the ability of bacteria to cause life-threatening infections.
New research reveals symbiotic bacteria in black bean aphids can exhibit a disruptive 'Hyde' side, slowing insect growth while allowing bacterial proliferation. This discovery may lead to new methods for controlling insect pests without relying on insecticides.
A CU-Boulder technology has been used to identify unexpected bacteria strains in the lung fluid of Denver children suffering from cystic fibrosis. The method uses nucleic acid gene sequencing to rapidly detect and classify pathogens found in the lungs, identifying over 60 species of bacteria in samples from 28 patients.
Researchers at Princeton University have discovered a chemical mechanism used by cholera bacteria to communicate with each other, which can be disrupted to potentially halt the disease's progress.
A new vaccine developed by the Scripps Research Institute could block deadly staph infections by sequestering autoinducers that trigger bacterial virulence. The vaccine works by inducing antibodies that bind and neutralize these molecules, preventing the shift from harmless to virulent bacteria.
A new study by Oregon State University microbiologists found that one type of bacteria has mutants that shut down communication systems to avoid sharing nutrients. This allows the lazy bacteria to grow faster and outcompete others, but also reveals a paradox in microbiology and potential strategies for combating bacterial infections.
A study by Dr. Matthew Oughton found that soap and warm water eliminate over 98% of C. difficile bacteria, while alcohol-based solutions are ineffective against spores. The protocol also confirmed washing hands with soap and water remains an excellent method to control nosocomial infections.
Bacteria and nematode worms work together to kill insects using insecticidal toxins. The toxins, found in Photorhabdus luminescens, are also found in human pathogens Yersinia pestis and Yersinia pseudotuberculosis.
Scientists developed a microchip that can identify 56 virulence genes in E. coli bacteria and 54 antimicrobial resistance genes in gram-negative bacteria, speeding up diagnosis and treatment of infections. The chip will enable large-scale monitoring of bacterial pathogens and search for important genes in other pathogens.
Scientists have discovered thousands of new compounds in marine sponges, which are made by the bacteria living inside them. However, growing these bacteria in the laboratory is difficult due to the unique environment inside the sponge.
Researchers found that aging flies accumulate significant amounts of bacteria both inside and out, yet this does not affect their longevity. The study suggests that the energy spent fighting bacteria is not at the expense of overall health.
A recent study published in The ISME Journal reveals that a specific group of E. coli bacteria is associated with chronic intestinal inflammation in patients with Crohn's disease. Researchers found an increased level of invasive E. coli bacteria in inflamed areas of the small intestine, suggesting a potential causal link to the disease.
A study by University of Southern California researchers found that bacteria-free fruit flies lived as long as their bacterial counterparts, challenging conventional wisdom about the impact of microbes on lifespan. The finding suggests that factors other than bacterial load may limit life span.
Research by Dr James Chin and colleagues reveals that antibiotics not only kill bad bacteria but also maintain a pool of resistant genes within microbial communities. This means that subsequent therapy with another antibiotic may be ineffective due to increased resistance.
A team of Penn State researchers successfully created a microbial fuel cell that consumes cellulose and produces electricity by pairing two types of bacteria. The fuel cell achieves a maximum power density of 150 milliwatts per square meter, which is lower than current designs but shows promise for future improvements.
Scientists have found a key weakness in the enzyme that helps bacteria swap genes for drug resistance, allowing them to block the spread of antibiotic-resistant microbes. Bisphosphonates, widely prescribed for bone loss, can annihilate antibiotic-resistant bacteria in laboratory cultures.
Researchers at Lawrence Livermore National Laboratory discovered that certain bacteria excrete proteins that aggregate metal nanoparticles, reducing their toxicity and mobility. This phenomenon could lead to the development of protein-based methods for cleaning up polluted environments on a larger scale.
Researchers found S. aureus bacteria can remain dormant for up to two weeks within human lung cells, evading detection and antibiotics. The bacteria's gene expression profile changes to limit cellular damage and resume metabolic functions.
Oxygen restriction increases Listeria's infective potential by allowing it to smooth its path through the gut and liver, increasing the risk of infection.
Researchers at Purdue University have developed a method to deliver nanoparticles into cells using bacteria, enabling precise positioning of sensors, drugs, or DNA. This approach overcomes hurdles in delivering cargo to cell interiors, offering potential for gene therapy and disease detection.
Researchers at NIAID discovered a survival mechanism in gram-positive bacteria that protects it from antimicrobial peptides, which are defense molecules sent by the body to kill bacteria. The discovery may help chart a path to designing new drugs to bolster our antimicrobial treatment options.
Research suggests that food can be an important avenue for antibiotic-resistant bacterial evolution and dissemination through horizontal gene transfer with commensal bacteria. Many food samples tested contained antibiotic-resistance gene-carrying bacteria, highlighting the prevalence of these microbes in the retail food supply.
Researchers found hundreds of new species of bacteria that can break down petroleum products, including those surviving without water or oxygen. The bacteria have potential applications for cleaning oil spills, medical treatments, alternative energy, and industrial uses.
Researchers developed a device to concentrate and separate bacteria using electric currents, suitable for miniaturized medical diagnostics. The method, based on pH changes, can be used to separate living and dead cells or bacteria with different motility, offering new applications in biotechnology.
Researchers at Ohio State University discovered that bacteria can turn genes on or off to control their infectiousness. The proteins NusG and RfaH play a crucial role in this process, with NusG regulating nearly all gene expression in bacteria and RfaH controlling specific sequences of the genome during transcription.
Scientists discovered that European Beewolf females deliberately cultivate bacteria in their antennae to shield their larvae from fungal infections. The bacteria produce antibiotics, significantly enhancing the larvae's chances of survival during hibernation.
New research from Rockefeller University and St. Jude Children’s Hospital shows that a viral protein-derived lysin can prevent middle ear infections in mice by killing the bacteria that cause them. The treatment was 100% effective against secondary infections, which contribute to much of the sickness and death rates during flu season.
A new study has developed an antimicrobial approach using gallium to defeat drug-resistant bacteria. The researchers interfered with a key bacterial nutrient, killing microbes in laboratory experiments and eliminating life-threatening infections in mice.
A team at the University of Cincinnati discovered a new way to combat antibiotic-resistant bacteria by substituting gallium for iron, preventing bacterial growth and biofilm formation. This method shows promise in treating lung infections, particularly in cystic fibrosis patients.