Articles tagged with Bacterial Dna
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Researchers at the University of Illinois have developed a new approach to inhibit the transfer of antibiotic-resistance genes in Streptococcus pneumoniae. By targeting a protein called CSP, they found that artificial versions of this protein can block gene transfer and reduce the infectious capacity of the bacteria.
Researchers discovered that bacteria in arsenic-rich environments developed a protein, PBP, with extreme selectivity for phosphate over arsenate. The unique bond between the protein and arsenate molecule led to repulsion and prevented its entry into the cell.
A study by University of Illinois researchers found that the gut microbiome composition of growing kittens differs depending on their diet, with high-protein diets linked to lower levels of health-promoting bacteria. Conversely, moderate-protein diets were associated with higher levels of beneficial bacteria, potentially promoting bett...
Research identifies distinct microbial communities in healthy and cystic fibrosis patient lungs, suggesting beneficial microbes contribute to health. The findings suggest a potential new approach to treating cystic fibrosis, including probiotic therapies.
A team of researchers analyzed 29 genomes from different generations of E. coli bacteria to understand how they evolved to supplement their traditional diet with citrate. They discovered a three-step process: potentiation, actualization, and refinement, which led to the development of new biological functions.
Hyenas' scent glands harbor diverse microbial communities that produce unique chemical signatures, enabling clan recognition and social behavior. This symbiotic relationship highlights the importance of microbes in animal behavior, with future studies planned to explore their role further.
Researchers found at least seven shared antibiotic-resistance genes between soil bacteria and disease-causing pathogens, suggesting recent gene transfers. The discovery highlights the potential for environmental bacteria to contribute to human health risks.
Researchers have genetically engineered a type of house plant to be long-lived and produce flowers without pollen. The modified plants also exhibit improved growth characteristics, such as increased branching and leaf density. This breakthrough is great news for gardeners who want to enjoy their plants for longer periods.
Researchers encoded George Church's book 'Regenesis' in DNA using novel strategy and next-generation sequencing technology. The team stored 54,898 unique DNA sequences, each with an address to guide reassembly, for a total of 70 billion copies.
Scientists have identified a link between E. coli bacteria and colon cancer, with approximately two-thirds of patients with colon cancer carrying specific strains of the bacteria. The bacteria carry pks genes that produce a toxin that damages DNA in the gut lining, promoting cancer development.
Scientists have developed a new method to study how the immune system interacts with bacteria during chronic infections. The method uses 5 mm silicone tubes and combines light microscopy and electron microscopy to visualize the interaction between white blood cells and bacteria.
Researchers found a strain of dysentery-causing bacterium spreading rapidly from Europe to Australia and some developing countries. High levels of drug resistance in developed countries make transmission easier.
A research team at UNC Chapel Hill has discovered a molecular mechanism that allows bacteria to transfer antibiotic resistance. By inhibiting the interaction between two protein loops and the plasmid DNA, researchers may be able to develop new antibiotics effective against drug-resistant bacteria.
Researchers at UCSB discovered a variation of an enzyme's ability to 'hop' along DNA, modifying genetic material and physical capabilities in bacteria. The study provides insight into epigenetic gene regulation and its potential applications in biomedical fields.
Michigan State University researchers discovered how bacteria flip a DNA switch to transform from harmless microbes to deadly insecticides. The bacteria, bioluminescent insect pathogens, reside in the intestines of worms and aid their survival, but can rapidly grow and produce toxins when the worms infest insects.
Researchers from Universitat Autonoma de Barcelona successfully extracted the genetic material from two ancient newborns with congenital syphilis. This breakthrough study reveals that younger individuals are more likely to have preserved DNA, shedding light on the historical development of the disease and its geographic distribution.
Researchers have discovered a new and effective means of editing genomes, revolutionizing the field of genomics. By programming RNA to direct protein cleavage at specific nucleotide sequences, scientists can now edit DNA with unprecedented precision.
Researchers at Caltech have developed a method to measure the rate of DNA transfer from viruses to bacteria. They found that the amount of genetic material within the bacterial cells determines how quickly the bacteriophage's DNA is transferred, not the pressure in the virus itself.
A University of Illinois study found that dietary fiber promotes beneficial bacteria in the gut, leading to improved gastrointestinal health. The research suggests that increasing fiber intake can have a positive impact on health, particularly in reducing the risk of conditions like type 2 diabetes and inflammatory bowel disease.
A novel diagnostic test has been developed to accurately detect Group B Streptococcal infection in babies, allowing for quicker treatment and potentially reducing mortality rates. The test detects the presence of a specific gene in the bacteria, which is an important disease-causing factor.
Researchers have identified a set of viruses shared among individuals from different parts of the world, which target the gut microbiota. The study found that nearly 80% of these viruses are common to two or more individuals, suggesting a global reservoir of phages attacking our gut bacteria.
Researchers deployed omics to track microbial responses to the Deepwater Horizon oil spill, finding a succession of microbes degrading different fractions of oil. The study revealed an abundance of genes involved in hydrocarbon degradation and identified the first deep-sea oil-eating bacterium.
Researchers have mapped the normal microbial makeup of healthy humans, revealing that nearly everyone carries pathogens but they cause no disease in healthy individuals. The human microbiome plays a vital role in human health and contributes to human metabolism.
Researchers mapped the normal microbial make-up of healthy humans, identifying over 10,000 species and 8 million unique protein-coding genes contributed by human microbiome.
The Human Microbiome Project's findings reveal a complex network of microbial diversity, with an estimated 10,000 bacterial species in the human microbiome. The study challenges traditional health concepts by showing that there is not just one way to be healthy, but rather a range of 'just fine' communities.
Anthony R. Richardson has been honored with the Merck Irving S. Sigal Memorial Award for his pioneering work on the metabolic adaptations of Staphylococcus aureus to host immunity. His research has profound implications for understanding the evolution and emergence of highly virulent pathogens.
Dr. Richardson's research focuses on the role of basic bacterial physiology in the virulence of human pathogens, with a particular emphasis on Staphylococcus aureus. His work has shown that certain compounds can be lethal to the pathogen, leading to new insights into the battle between host and bacterium.
Researchers found that MRSA strain CC5 is adept at acquiring resistance genes, including the one making it resistant to vancomycin, by co-existing with other bacteria. The strain's unique traits, such as lacking bacteriocin production and producing enterotoxins, enable it to thrive in mixed infections.
A global team of scientists led by Virginia Tech and the University of Tuscia has successfully traced the origin of the devastating kiwifruit pathogen Psa back to its likely source in China. The research used DNA sequencing technology to compare bacteria samples from around the world, revealing that they were nearly identical except fo...
A new study reveals that wind erosion can carry away beneficial microbes from soil, reducing microbial diversity and depleting topsoil of essential bacteria. However, certain groups of microbes, such as Actinobacteria, remain in the parent soil despite erosive conditions.
A study by British and Japanese researchers shows that rogue DNA from the heart's own cells mistakenly activates the body's immune system, leading to inflammation and reducing the heart's ability to pump blood. This process can kick-start in heart failure, a debilitating condition affecting millions worldwide.
A study suggests that eating pistachios can increase beneficial bacteria in the gut, potentially supporting digestive health. Researchers found a stronger effect on gut microbiota composition in those who ate pistachios compared to almonds.
Researchers found Bartonella infection in 62% of patients with conditions like arthritis, chronic fatigue, and Lyme disease. The study suggests a possible link between Bartonella bacterium and rheumatoid illnesses in humans.
Researchers found that the sasX gene is more prevalent in MRSA strains from China than previously thought, with its frequency increasing significantly over the past decade. The gene plays a pivotal role in establishing MRSA epidemics and may be involved in molecular processes that help bacteria spread and cause disease.
James Hoch's research aims to understand bacterial signaling interactions and their role in disease. His work has identified strategies for disrupting virulence factors and essential bacterial functions, suggesting potential approaches to treating antibiotic-resistant infections.
Researchers found DNA links between oral bacteria and failed hip or knee replacements in a study of 36 patients. The study suggests that treating periodontal disease may reduce costly joint replacements.
A new study on Inflammatory Bowel Disease (IBD) in Canadian First Nations people reveals distinct genetic variations and immune response patterns compared to white populations. The research found lower numbers of genetic variants involved in recognizing bacteria, potentially impacting the disease's progression.
Researchers found that gene sweeps can sweep through populations on their own, similar to sexual eukaryotes. This suggests a unified method of evolution for prokaryotes and eukaryotes, challenging traditional views of species classification.
Researchers found that suppressing bacterial communities with antibiotics may actually help treatment-resistant bacteria flourish, leading to more infections. The study suggests new avenues for developing more effective treatments and improving patient outcomes.
Researchers sequenced DNA from viruses present in healthy individuals' gut bacteria, revealing 51 hypervariable regions associated with reverse transcriptase genes. These findings suggest that viral variation could drive the evolution of the gut microbiome.
Researchers have discovered a novel cell death pathway in bacteria that shares similarities with apoptosis in higher organisms. The newly described Apoptotic-Like Death (ALD) pathway is characterized by DNA fragmentation and depolarization of the cell membrane, similar to eukaryotic apoptosis.
Scientists have developed a method to adapt personal glucose monitors for detecting DNA, allowing for rapid testing of viruses and bacteria in human body fluids and food substances. This technology has the potential to improve health and reduce costs, particularly in developing countries or rural areas with limited medical resources.
Scientists at EMBL discovered that bacteria like Mycoplasma pneumoniae tune proteins to perform multiple tasks, leveraging post-translational modifications. This strategy may be an ancient evolutionary tactic shared with complex cells.
Scientists have identified two new possible antibiotics, fasamycin A and B, that work against deadly resistant microbes like MRSA. The metagenomics method allowed researchers to analyze substances made by soil bacteria's DNA in the lab, enabling the discovery of these potential life-saving medications.
A new study found that smoking disrupts a healthy balance of bacteria in the mouth, making smokers more susceptible to gum disease and other oral health issues. The researchers suggest that dentists should offer more aggressive treatment for smokers and encourage them to quit.
Researchers have mapped the molecular structure of restriction enzymes found in many bacteria, shedding light on how they control bacterial resistance to antibiotics. This knowledge could aid in developing new treatments for superbugs like MRSA, which become resistant to most drugs through genetic exchange.
A genetic study found that pneumococcus bacteria can evade vaccines by swapping genome regions, making them invisible to the vaccine. The exchange of genome regions occurred through recombination, allowing the bacteria to quickly adapt and develop resistance.
Researchers discovered that certain ocean bacteria are tricked into using their own machinery to activate genes carried by viruses. The viruses inject DNA into stressed bacteria, which then support the virus' replication cycle. This co-evolutionary relationship reveals a sophisticated mechanism of gene regulation and exploitation.
A new detection method for urinary tract infection (UTI) causing bacteria uses MALDI-TOF mass spectrometry, reducing diagnostic time to under 30 minutes. This technique has the potential to improve treatment outcomes and reduce costs by accurately identifying bacteria and targeting specific antibiotics.
Researchers at Duke University Medical Center developed a new way to identify genes of harmful microbes using chemicals and genomic sequencing. This approach can rapidly pinpoint genes responsible for specific traits in Chlamydia, a common sexually transmitted infection.
Researchers have discovered how to harness the bacterial immune system to selectively target and silence genes. This finding has far-reaching implications for biotechnology and biomedical research, allowing for the modification of gene expression in bacteria used for biofuels and pharmaceuticals.
Researchers have identified a new type of magnetic bacteria, BW-1, in Badwater Basin that can produce both greigite and magnetite. The discovery may lead to novel applications in drug delivery and medical imaging due to its unique properties.
A University of Texas at Austin chemist has received a $1.6 million grant to develop a simple, paper-based test for detecting drug-resistant tuberculosis. The goal is to create a real-time test that can be used in resource-poor communities without refrigeration.
Scientists have solved the structure of a key region in Ler, a protein linked to E.coli virulence. This breakthrough could lead to alternative treatments and minimize antibiotic resistance.
A comprehensive study of premature infants found that they harbor fewer diverse microbes than full-term infants, with harder-to-treat Candida fungus and harmful bacteria prevalent. The research highlights the importance of balance in the infant's gut microbiome and suggests that probiotic substances may be beneficial.
Researchers at the University of Gothenburg have discovered a brand new tick-borne infection, Neoehrlichia mikurensis, which causes Deep Vein Thrombosis (DVT) in people with impaired immune systems. The infection has been reported in eight cases worldwide, three in the Gothenburg area.
A new study reveals four distinct configurations of the SBP8a bacteriophage, showing its ability to penetrate anthrax cells and control DNA flow. The discovery provides an initial blueprint for modifying the phage into a detection tool for anthrax and other bioterror agents.
A research team has sequenced the genome of Pseudomonas syringae pv. tomato to understand how it evades plant defenses and develop methods to prevent further spread. The study found that the pathogen likely evolved on a recent time scale and continues to adapt by minimizing its recognition, posing a threat to biosecurity.
Researchers discovered a bacterium that targets and kills specific pathogens, making it a potential living antibiotic. This 'vampire' bacteria can survive only by drawing nutrients from prey bacteria, killing them in the process.
A new genomic approach developed by Cornell University scientists enables precise identification of food-borne bacteria, facilitating the detection of outbreaks and their sources. This breakthrough method has the potential to uncover smaller outbreaks that may have gone unnoticed previously.