Articles tagged with Gram Positive Bacteria
Marcos Pires, a Lehigh University assistant professor of chemistry, has pioneered an immunotherapy approach to combat bacterial infections. His method involves molecularly tagging pathogenic bacteria to attract antibodies, offering a novel strategy to defeat Gram-positive and Gram-negative bacteria.
Researchers at University of Illinois developed spiral polypeptides that target bacteria's outer membrane, perforating it until the cell falls apart. The antimicrobial agents are designed to interact with bacterial membranes while minimizing interaction with human cells.
Researchers found that Agion silver zeolite technology significantly reduced bacterial populations on door handles, particularly gram-negative bacteria. The study suggests that the technology may be more effective than previously thought, but further research is needed to address concerns about standardization and potential side effects.
Researchers at University of Utah discovered a disposable molecular ruler that determines bacterial needle length, enabling efficient infection and potential applications in developing new antibiotics and nanotechnology.
Researchers have developed a system to detect and monitor dangerous Gram-negative bacteria in real-time using PET scans. The approach uses a chemical tracer that selectively tags specific types of bacteria, providing rapid feedback on how they respond to antibiotics.
A new class of antimicrobials inhibits biofilm formation and eradicates mature biofilms in Gram-negative and Gram-positive bacteria. The substance, '1018', blocks the stringent stress response mediator (p)ppGPP, preventing its role in biofilm maintenance.
A team of researchers from Notre Dame has discovered a new class of oxadiazole antibiotics effective against MRSA and other drug-resistant bacteria, offering a promising treatment option. The discovery is based on the inhibition of penicillin-binding proteins and shows promise in mouse models of infection.
Researchers have discovered that blue light phototherapy is effective in killing antibiotic-resistant bacteria, including MRSA. The treatment uses a specific wavelength of blue light to target and destroy the bacteria.
A new automated diagnostic test can rapidly identify the most common causes of Gram-positive bacterial blood stream infections and detect three antibiotic resistance genes. The test takes about 2 hours to run and provides faster diagnosis, enabling early treatment of patients with sepsis.
A University of Iowa-led team recommends a three-step protocol to reduce post-surgical staph infections, which can cause significant pain and financial burden. The guideline involves nasal swabs and application of an anti-bacterial nose ointment before surgery to target MRSA bacteria.
Researchers identified genetic controls that enable social amoebas to differentiate between gram-negative and gram-positive bacteria. The study found nearly 800 genes activated when exposed to gram-negative bacteria, highlighting a key role for a specific gene in degrading bacterial cell walls.
Researchers at UCSB have discovered a key role for rearrangement hotspots (Rhs) proteins in bacterial intercellular competition. These proteins enable certain bacteria to compete with members of their own species by delivering toxic tips into neighboring cells, leading to cell death.
Researchers found that head-on collisions between replication and transcription machineries lead to faster mutations in genes on the lagging strand. This accelerated mutation rate may help bacteria adapt to environmental changes, but also increases structural variations in proteins.
Andrew Lovering, a renowned structural biologist, has received the ICAAC Young Investigator Award for his seminal research on bacterial cell wall synthesis and modification. His work has significantly advanced our understanding of antibacterial targets and membrane-anchored proteins in bacteria.
Researchers identified NLRP7 as a key protein that recognizes bacterial cell wall components in harmful gram-positive bacteria. The discovery could lead to novel treatment strategies to combat infections from deadly bacteria like Listeria and MRSA.
Scientists have discovered a new communication code employed by disease-causing bacteria, which is recognized by plant and animal immune receptors. This discovery has significant implications for controlling bacterial diseases and could lead to new methods for treatment.
The National Institute of Allergy and Infectious Diseases has awarded five-year contracts totaling $150 million to develop broad-spectrum therapeutics against multiple types of bacteria and viruses. The development focuses on creating products that can be stockpiled to protect the public in bioterror attacks or public health crises.
Researchers at the University of Sheffield have created a new technology that detects bacterial infections in wounds using ultra-violet light. The polymers, attached to antibiotics, bind to bacteria and fluoresce, alerting clinicians to the severity of infection and guiding antibiotic treatment.
Researchers at Scripps Research Institute successfully designed a new antibiotic that can target and kill the most resistant bacterial infections. The compound, an analogue of vancomycin, overcomes the resistance mechanism by altering the key atom in the peptidoglycan structure.
Researchers developed maltodextrin-based imaging probes that can detect bacterial infections in animals with high sensitivity and specificity. These probes distinguish bacterial infections from other inflammatory conditions, such as cancer, and can detect as few as one million viable bacteria cells.
A Danish chemist has created a synthetic version of a bacterial endotoxin, revealing the mechanism behind deadly Gram-positive infections. The breakthrough could lead to the development of new and effective types of antibiotics.
Researchers trick Staphylococcus aureus bacteria into embedding foreign small molecules within their cell walls by manipulating an enzyme. This discovery could lead to novel therapeutics and real-time monitoring of diseases.
Researchers at Tel Aviv University have developed a pocket-size breath test that can detect the presence of malodorous bacteria, allowing users to determine if their breath is 'okay to kiss'. The test uses biomarkers in saliva to identify two distinct populations of bacteria causing bad breath.
A new family of antibacterial agents has been identified in the freshwater animal Hydra, which shows promise in combating drug-resistant bacteria. The protein hydramacin-1, found in Hydra, exhibits broad-spectrum antibacterial activity against Gram-positive and Gram-negative bacteria.
Scientists discovered bacteria in Vetiver grass roots that enhance essential oil production while altering molecular structure. The bacteria change the oil's properties to include insecticidal, antimicrobial, and antioxidant characteristics.
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.
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.
Scientists have analyzed vast amounts of marine microbial DNA, predicting over 6 million proteins and discovering hundreds of new gene families. The study provides a glimpse into the diverse world of protein families and their role in biology.
Researchers at the University of Illinois have discovered a new two-component lantibiotic called haloduracin, which has shown promising therapeutic potential in treating nasty infections. The discovery could provide new sources of antibiotics to combat drug-resistant bacterial strains.
A group of tannins found in cranberries can transform E. coli bacteria into spheres, alter cell membranes and make it difficult for them to bind to cells. The results suggest whole cranberry products may have the greatest health effects against certain infections.
Researchers at the University of Michigan have developed a novel method to weaken Gram-negative bacteria, including E. coli, making them susceptible to existing antibiotics. The approach, which involves genetic modification, has shown promising results in reducing antibiotic doses needed to kill the bacteria.
Researchers found that bacteria dominate Cava wines after yeast fermentation, affecting aroma, flavor and bubble size. The products released by yeast cells serve as nutrients for bacterial growth, influencing sensory quality and consumer acceptability.
Researchers at OHSU have determined the structural basis underlying a crucial mechanism that allows gram-positive bacteria to adapt to available energy sources. This finding could lead to the development of new antibiotics that disrupt this mechanism, making bacteria more susceptible to counter-attacks by the human body.
Research reveals integrons in poultry litter generate clusters of varied antibiotic resistance genes, complicating efforts to control spread. The discovery has significant implications for farm animal operations, human health, and the development of new antibiotics.
Researchers at the University of Rochester have developed a smart bandage that can detect bacteria and provide instant diagnosis, changing color to indicate the presence of Gram-positive or negative bacteria. The bandage is part of a larger 'smart medical home' system that aims to give people more control over their health.
A study by Northwestern University researchers finds that linezolid is highly effective against a range of gram-positive bacteria, including those resistant to vancomycin and oxacillin. The antibiotic showed potent activity against all isolates tested, making it a promising new treatment option for patients with drug-resistant infections.
Researchers at the University of Cincinnati have developed a system to synthesize and screen novel beta-lactam antibiotics, including some effective against extremely low levels of bacteria. The process takes about two days and produces over 1,000 novel compounds with potential for use in antibiotic skin patches.