Articles tagged with Bacterial Pathogens
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Researchers have developed a genetic typing method for Pseudomonas putida, which enables the detection of its virulent strains. The study's findings highlight the bacterium's biotechnological value and its importance in understanding disease-causing pathogens.
A new online tool called Uniqprimer has been developed to detect blackleg disease in potatoes with high accuracy and ease of use. It quickly designs species-specific DNA tags for detecting pathogens using DNA testing, allowing for accurate pathogen detection and informing farmers' on-farm decision making.
A study on olive baboons found that females avoid mating if either the male or female shows visible signs of infection, while males do not change their behavior. The researchers aim to understand how sexually transmitted diseases impact non-human primate populations.
A recent study at Massachusetts General Hospital has uncovered evidence of fimbriae that aid adherence to epithelial cells, an important step in the start of a shigellosis infection. The research team used in vivo-like culture methods and human intestinal organoids to confirm their findings.
Researchers analyzed bushmeat samples from Tanzania's Serengeti National Park and found 27 different groups of bacteria, including those causing anthrax, brucellosis, and Q fever. The team identified a high prevalence of Clostridial species, which cause diseases like botulism and tetanus.
Researchers describe how ancestral origins impact the likelihood of developing immune-related diseases, including Crohn's disease and cardiovascular diseases. The human immune system is evolving depending on a person's location or lifestyle, leading to new diseases emerging as our lifespans increase.
Researchers found that a specific toxin in Staphylococcus aureus prevents tolerance and maintains the immune system's vigilance. Early-life exposure to commensal bacteria like S. epidermidis leads to immune tolerance, while later exposure to pathogenic S. aureus results in a vigorous immune response.
Researchers discovered a fear-greed tradeoff in bacteria that use ancient respiratory quinones for aerobic respiration, leading to oxidative stress and growth limitations. The study provides fundamental insights into microbial bioenergetics evolution and potential strategies for modulating bacterial growth and survival.
Researchers at University of Jyväskylä found that bacteria-infecting viruses preferentially bind to mucosal surfaces, providing extra immunity against bacterial infections. This symbiotic model shows phages enriched in mucus, where encounters with host bacteria are more probable.
Researchers have discovered a novel peptide, Darobactin, effective against antibiotic-resistant gram-negative bacteria. The substance binds to the BamA protein, disrupting the bacterial external membrane and leading to its death. This finding presents a promising lead for developing a new antibiotic.
A study by University of Basel researchers found that a cellular pump restricts bacterial growth in host cells by causing magnesium shortage. This discovery provides new insights into the role of NRAMP1 transporter in combating intracellular pathogens.
The BacFITBase database identifies key genes for host cell invasion and infection, aiding in the development of new antibiotics. The database contains over 90,000 entries with information on specific pathogenic bacterial genes and their contribution to infectious conditions in five different host species.
Researchers at Cornell University have discovered a unique bacterial regulatory mechanism called T-boxes, which facilitate basic functioning in bacteria. Understanding the structure of these elements could lead to designing targeted antibiotics, offering hope against antibiotic-resistant pathogens.
A team of scientists has discovered 79 new types of bacteria with potential to produce unique antibiotics. The researchers, led by Christian Jogler, found that these Planctomycetes have complex lifestyles and the ability to produce small molecules like antibiotics.
A new function of Pseudomonas aeruginosa lectin LecB has been discovered: it blocks the cell cycle in host cells, leading to slowed or halted wound healing. This impairment occurs through the silent internalization of growth factor receptors, triggering intense vacuolization and cell death.
The study reveals that bacteria have multiple oxidases, with cytochrome bd oxidase playing a crucial role in energy production and stress protection. The novel findings provide insights into the development of new antimicrobials targeting pathogens.
Researchers discovered that Crohn's disease-associated bacteria can switch between replicating and non-growing states within macrophages to tolerate antibiotics. This stress response allows a reservoir of antibiotic-tolerant bacteria to survive in the host and cause long-term inflammation and irritation.
A study in eLife reveals how respiratory bugs in cystic fibrosis patients interact, influencing disease progression and survival. The research found that one bacterium enhances the movement of another, while others significantly increase its mobility.
Researchers have published protocols for culturing Liberibacter crescens, a genetically similar bacterium, to study citrus greening. This advance enables the scientific community to use L. crescens as a realistic surrogate host for Ca. L. asiaticus.
Researchers at Martin-Luther-Universität Halle-Wittenberg have developed new active ingredients that target the pyruvate kinase enzyme in pathogenic bacteria. These substances were shown to be effective against staphylococcus and MRSA, potentially offering a solution to the growing problem of antibiotic resistance.
Scientists adapted a genetic tool to modify virulence factors in zoonotic Chlamydia, revealing distinct sets of factors determine host infection and disease. The study sheds light on the molecular mode of action of SinC and IncA, opening new avenues for investigating these pathogens.
Research reveals that E. coli bacteria gain a competitive advantage over beneficial microbes in inflammatory bowel disease (IBD) by adapting their dietary preferences to amino acids, particularly serine. This finding suggests that a low-serine diet may help control the overgrowth of pathogenic E. coli.
Researchers at the University of Sheffield have discovered that a bacterial toxin, lysostaphin, targets and breaks down MRSA cell walls, making it effective against antibiotic-resistant superbugs. This finding could lead to the development of new treatments targeting the same mechanism.
The UMass Amherst researchers have developed a portable sensing device capable of detecting and subtyping foodborne pathogens, including bacteria and viruses. This technology has the potential to quickly identify outbreaks and pinpoint the responsible food or ingredient.
Researchers have discovered a mechanism behind bacterial evolution of drug resistance, exploiting collateral sensitivity for novel and sustainable treatments. The study found that certain drugs can be used in combination to eliminate bacterial populations or prevent the emergence of multidrug resistance.
A HHU-led research consortium aims to eliminate the deadly disease bacterial blight in rice, a staple crop for over half of the world's population. The team has developed resistant rice varieties and a diagnostic kit to combat the disease, which can devastate smallholder farmers' crops.
Researchers developed a novel genomic analysis method for classifying Yersinia strains, revealing unexpected biodiversity and new species. The tool enables accurate identification of pathogenicity, guiding patient monitoring and public health initiatives.
Researchers identified specialized 'adventurer' cells in Vibrio parahaemolyticus that facilitate its dissemination and prevalence. These cells enable the bacterium to colonize new habitats and spread disease globally.
Researchers discovered a single nucleotide mutation in P. aeruginosa that caused rapid resistance to ceftolozane-tazobactam and partial resensitization to carbapenems and piperacilline-tazobactam. This finding may enable the use of these antibiotics in treating extremely drug-resistant P. aeruginosa cases.
Scientists discovered that bacterial cell division requires both mechanical and biological processes. The study found that a build-up of mechanical stress in the cell wall is necessary before division occurs, and can even be triggered by physical pressure.
A study on Ötzi's DNA found a decrease in Prevotella copri, a common human gut microbe, in Westernized populations. The discovery suggests that Westernization may have contributed to the loss of beneficial bacteria, with significant implications for public health.
A novel approach to tackle superbugs has been discovered using nanocapsules made of natural ingredients, which can prevent bacteria from attaching to stomach cells. The research aims to reduce antibiotic-resistant strains and is a potential preventative measure.
A new study from MIT reveals that glycans in mucus can disarm opportunistic pathogens and prevent infections. The researchers found that these sugar molecules can regulate the behavior of microbes, preventing them from communicating with each other and forming infectious biofilms.
Researchers found that nanostructured surfaces reduce bacterial adhesion, making it harder for Staphylococcus aureus bacteria to form biofilms and resist antibiotics. The study suggests optimizing surface topography can minimize bacterial attachment and prevent biofilm formation.
Researchers identified glycerol monolaurate in human breast milk as a compound fighting pathogenic bacteria while allowing beneficial bacteria to thrive. Human breast milk has more than 200 times the amount of GML found in cows' milk and infant formula.
Researchers develop technique to trick bacteria into revealing hundreds of holes in their cell walls, making them vulnerable to drugs. This could lead to more effective or antibiotic-free treatments that target these pores.
Researchers have developed engineered viruses to target specific strains of bacteria, reducing the risk of antibiotic resistance. The new approach could provide a targeted alternative to traditional antibiotics.
A new analysis found that the current annual US sales of new antibiotics to treat carbapenem-resistant Enterobacteriaceae (CRE) is $101 million, significantly short of the needed $1 billion. This shortfall threatens the financial viability of new antibiotic development and may lead to reduced treatment options for patients. Researchers...
Vibrio cholerae uses its type VI secretion system (T6SS) to compete with other bacteria and acquire new genetic material, leading to rapid evolution and pathogen emergence. The bacterium can steal up to 150,000 nucleic acid base pairs, or roughly 150 genes, in a single attack.
A graphene filter developed by Rice University scientists can capture and sanitize airborne pathogens, including bacteria, fungi, and viruses. The filter uses Joule heating to kill trapped microbes and their toxic byproducts, potentially reducing hospital infections.
The Bacterial and Viral Bioinformatics Resource Center combines two independent resources to support richer scientific data and more powerful analytic tools. The hub will provide rapid access to genomic datasets, computational tools, and artificial intelligence techniques to analyze data and make predictions.
A team of researchers from Charité - Universitätsmedizin Berlin has identified a new endogenous mechanism that enables the skin to actively kill bacteria. The discovery involves mast cells and interleukin 6, which stimulate the release of antimicrobial peptides that target bacteria.
Scientists have elucidated the structure of the ClpX-ClpP proteolytic complex, a key to developing innovative antibiotics that target bacterial degradation processes. The complex's unique mechanism of action has considerable innovation potential in the fight against pathogenic bacteria.
Researchers found special sensory cells in the gums that detect irritants and bacteria, triggering an immune response to control oral microbiome. The discovery could lead to personalized dental treatments against gum disease.
A new study found that coral defenses are compromised by warming, but reef conservation and certain fish species, like the Acropora millepora, can enhance them. The research used potions from protected and heavily fished reefs to test their effectiveness against a pathogen.
A team of researchers discovered that single-celled organisms like protozoa can protect pathogenic bacteria and prime them for human infection. The bacteria are expelled into the environment after being ingested by protozoa and become more infectious in humans, potentially threatening public health.
Researchers at the University of Bonn found that conventional washing machines in hospitals and potentially households can transmit antibiotic-resistant bacteria to newborns through clothing. The study highlights the need for higher temperatures during laundry to prevent transmission of dangerous pathogens.
Researchers discovered that certain soil microbes can make plants more resistant to an aggressive disease, such as bacterial wilt caused by Ralstonia solanacearum. The study found that rare taxa and pathogen-suppressing bacteria are associated with healthy plant microbiomes.
Researchers at University of Warwick have made a breakthrough in understanding the functions and structures of key enzymes in assembling an antibiotic with activity against Acinetobacter baumannii, a highly resistant pathogen. Understanding these enzymes could enable more effective versions of the antibiotic to be created.
Researchers found that flour beetles' immune system adapts to specific bacteria after repeated exposure, leading to improved specificity and survival chances. The study's results could have implications for human innate immunity and may lead to new strategies for combating pests like the red flour beetle.
Scientists at the University of Surrey discovered that green tea's EGCG can restore antibiotic activity against antibiotic-resistant bacteria Pseudomonas aeruginosa. The study found that combining EGCG with aztreonam significantly reduced bacterial numbers and improved survival rates in infected larvae.
Biochemists at Nagoya University have found a way to selectively kill Pseudomonas aeruginosa bacteria using a hijacked haem acquisition system that targets other dangerous bacteria, providing an alternative treatment strategy for resistant infections.
A large-scale study found that vaginally born babies have different gut bacteria than those delivered by Caesarean. Researchers discovered that the mode of delivery impacted the gut microbiome, with vaginal delivery promoting mother's gut bacteria and Caesarean deliveries resulting in hospital-borne bacteria.
A study by Vincent Richards and colleagues found that antibiotic-resistant genes are being transmitted from humans into animal species, including livestock, companion animals, and wildlife. This reverse zoonosis is facilitated by high bacterial genome plasticity, allowing bacteria to adapt quickly to environmental changes.
Researchers found that strains predicted to be more sensitive to T6SS were able to coexist with aggressor strains, challenging the traditional assumption of a 'winner-take-all' result. The study suggests that genetics and environmental factors play a significant role in determining competition outcomes.
Researchers at San Diego State University have discovered a beneficial bacterium that produces nanoscale syringe-like structures called the Death Star, which can deliver proteins to target cells and tissues in humans. This discovery could lead to novel therapeutics and vaccines for diseases such as cancer.
Researchers found that Leishmania parasites protect themselves from starvation by making an unusual carbohydrate reserve called mannogen, which enables their survival within human hosts. This discovery provides a new understanding of the parasite's metabolism and could lead to the development of new therapies for Leishmaniasis.
Researchers from Florida Atlantic University and Georgia Aquarium have found a significant increase in antibiotic resistance in bottlenose dolphins, with the prevalence of resistance to at least one antibiotic reaching 88.2 percent. The study's findings suggest that the isolates originated from human activities or discharges, highlight...
Researchers from Osaka University found that a relatively ancient Haemophilus influenzae drug efflux pump AcrB confers resistance to antibiotics similar to its more evolved counterparts. The study highlights the evolution and mechanism of multidrug efflux systems, suggesting a 'one size fits all' approach is not suitable.
A new study has identified corn varieties with moderate resistance to bacterial leaf streak, a foliar disease that can cause up to 20% yield losses. The research also found genetic regions associated with increased levels of resistance and highlighted the importance of host resistance in controlling this disease.