Articles tagged with Bacterial Infections
Researchers have discovered a key toxin in the Legionella bacteria that enables its growth and infection in human cells. The toxin, SidJ, targets innate immune pathways and has a kinase fold, making it an attractive target for therapeutic intervention.
Researchers found a way to stimulate the waking of persisters, dormant bacterial cells that evade antibiotics and lead to chronic infections. Breaking links in the 'pore' formed by peptides enables these sleeping bacteria to regain energy and infect the host again.
Researchers found a link between healthy gut flora and reduced infection risk after knee and hip replacement surgeries. The study suggests that mice with unhealthy microbiomes may have compromised immune systems, paving the way for potential microbiome-based therapies to prevent infections.
A recent study found that kissing is a significant route of transmission for gonorrhoea, with rates of infection higher among men who kiss their partners compared to those who do not. The researchers argue that increased awareness and control measures are needed to address the rising global incidence of gonorrhoea.
A study of over 500,000 people found that naturally higher iron levels are associated with reduced risk of high cholesterol and atherosclerosis. However, the research also revealed potential risks, including increased risk of blood clots and bacterial skin infections.
Researchers found that C. difficile spores resist treatment with recommended disinfectant and can persist on hospital gowns and stainless steel surfaces. The study highlights the need to reevaluate infection control strategies in hospitals.
Researchers found that the rate at which a patient's immune system clears slow-growing variants of methicillin-resistant Staphylococcus aureus (MRSA) is crucial in determining whether antibiotics can cure the infection. A new mathematical model suggests that a drug targeting slow-growing MRSA variants may be the most effective treatmen...
Researchers at Inserm and Université de Rennes 1 have created new antibiotics effective against Gram-positive and negative multi-resistant bacteria. The compounds, known as peptidomimetics, also appear to prevent the development of resistance when used in mice models.
Researchers successfully combined ceftazidime-avibactam and fosfomycin to fight P. aeruginosa in mouse models, outperforming individual antibiotics. The combination reduced the presence of the bacterium significantly, offering a potential therapeutic strategy against superbugs.
Researchers developed a new technique to enhance the infection-fighting potential of natural chemicals and test them quickly. Three synthetic molecules were found to be four times more effective at killing bacteria than their natural predecessor.
The study reveals that the equilibrium between nose microbes and host has an impact on pneumococcal acquisition density, particularly with viral co-infection. Different microbiota constellations are associated with varying levels of inflammation, viral replication, and pneumococcal carriage receptiveness.
A new study by the Francis Crick Institute found that antibiotics can wipe out early flu resistance and leave the lung vulnerable to viral infections. Gut bacteria help maintain a first line of defense in the lining of the lung, but antibiotics can destroy this defense.
A University of Michigan study finds that poor communication among healthcare workers is a major contributor to catheter-related infections. The researchers suggest that routine patient care like catheter use can have serious consequences if communication breaks down.
Researchers identified a group of people who appeared to have naturally mounted an immune response to TB despite being exposed for over 10 years. The study found that nearly 200 people from 2500 households tested negative on repeated standard TB tests, suggesting either insufficient test sensitivity or a natural defense.
Researchers developed a new vaccine, NOMV-FHbp, which induced higher levels of protective antibodies than licensed vaccines against five of six bacterial strains. The vaccine has the potential to extend coverage to infants and toddlers, who are at high risk of developing meningococcal disease.
A new protocol implemented at Montgomery Hospital resulted in a 25-hour reduction in patients' time on broad spectrum antibiotics, saving $322,508 over four months. The interdisciplinary approach combined comprehensive blood culture identification testing with pharmacist recommendations to optimize antibiotic use.
Around half of hospital patients in Vietnam carry multiresistant intestinal bacteria, posing a significant risk to treatment and transmission. The study highlights the need for forceful measures to reduce infection spread through improved hygiene practices and follow-up care.
Researchers have developed a double-duty hydrogel that both kills bacteria and promotes bone regrowth using lysostaphin and BMP-2. This breakthrough therapy shows promise in treating orthopedic bone infections with fewer surgeries and accelerated healing.
Researchers found Cannabidiol effective in killing a wide range of Gram-positive bacteria, including resistant strains, and disrupted biofilms. The compound retained its activity under extended exposure conditions that lead to resistance against other common antibiotics.
A recent study has found bacteriophages, viruses that infect bacteria, living in kitchen sponges. The phages were isolated from used kitchen sponges and shown to be effective against antibiotic-resistant bacteria. The discovery could potentially provide a new solution to the growing threat of antibiotic resistance.
Researchers have discovered that plants can transmit antibiotic-resistant superbugs to humans, highlighting the importance of tackling foodborne resistance from all aspects of the food chain. The study found that certain antibiotics can increase the ability of bacteria to colonize the gut after ingestion, while others can prevent it.
Chlamydia trachomatis produces a protein called IncA that facilitates the fusion of bacterial compartments, leading to increased disease pathogenicity. The discovery provides a new tool for researchers to study key disease processes caused by bacteria.
Research found that 40% of university students' cell phones carried S. aureus, a common cause of hospital and community infections, with 85% resistant to penicillin. The bacteria's presence in healthcare environments could increase infection rates.
A global study found that high iron levels are associated with a reduced risk of high cholesterol and anaemia, while also increasing the risk of bacterial skin infections. Researchers used genetic and clinical data from approximately 500,000 people in the UK Biobank to make their findings.
Dr. Frank Scannapieco is recognized for his contributions to oral microbiology, with a focus on molecular mechanisms of oral bacterial colonization and saliva-bacterial interactions. He has published nearly 200 research articles and received multiple grants from the National Institutes of Health.
A world-first study uses 'good viruses' to eliminate targeted bacteria in green sea turtles without harming non-targeted 'good bacteria'. Researchers have identified the potential for phage therapy as an alternative treatment for bacterial infections in marine animals.
Researchers at the University of Dundee have made a significant breakthrough in understanding the function of HOIL-1, a key protein involved in cell survival. The study reveals that HOIL-1 operates in tandem with another component to form ubiquitin chains, and joins proteins using an unusual ester bond mechanism.
The Pew Charitable Trusts has funded research for 10 postdoctoral fellows from six Latin American countries to conduct studies in the US. The researchers aim to advance biomedical science and expand scientific expertise in their home countries.
An observational study found that human contact was responsible for 90% of the spread of one species of antibiotic-resistant bacteria to new patients. However, the same level of transmission was not seen with another species, highlighting the need for multiple prevention strategies.
Researchers at the University of California San Diego discovered a complex process where viral components are transported along filaments within bacterial cells. This 'treadmill-like' structure allows for efficient movement of cargo, similar to human cell mechanisms, and has significant implications for understanding phage therapy.
Scientists at the University of Warwick have developed a new technology that can detect live bacteria in minutes using bioelectrical signals. This breakthrough could lead to faster diagnosis and treatment of infections, including antibiotic-resistant threats.
Citrus greening has devastated Florida's citrus farms and threatens California groves. Researchers are exploring strategies to control the disease, including creating resistant crops and delivering anti-microbe peptides.
Researchers at Stanford University and Mexico isolated two color-changing compounds from scorpion venom that can kill staphylococcus bacteria and drug-resistant tuberculosis. The compounds were synthesized in the lab and verified to be effective against these pathogens.
The study reveals 621 genetic strains of Streptococcus pneumoniae worldwide, showing evolutionary changes that lead to vaccine evasion. It provides crucial information for future vaccine strategy and helps save lives by identifying important strains for new vaccines.
Researchers identified a master cell that coordinates the body's immune defenses in the first days after TB infection. Boosting this cell's activity could help prevent TB and reduce new infections. The findings suggest a new avenue for TB control and may aid development of more effective vaccines.
A class of immune cells called innate lymphoid cells (ILCs) plays an unexpected role in the early defense against tuberculosis. ILCs may provide a new approach to developing treatments and vaccines against TB.
New guidelines recommend nucleic-acid amplification tests (NAAT) for diagnosing Clostridioides difficile infection. NAAT testing practices are considered the most effective, with a recommended algorithm combining GDH/TOXIN/NAAT tests.
Researchers have discovered a molecule called LL-37 that changes cell behavior when infected with bacteria, triggering the production of neutrophils to destroy bacterial threats. The study's findings could lead to new approaches in treating multi-drug resistant infections.
A recent US study found that 81% of antibiotics prescribed by dentists to prevent infections prior to dental visits are unnecessary. The study highlights the need for improved antibiotic stewardship in dental practices, particularly in Western US locations.
Researchers at Virginia Commonwealth University have discovered that certain antidepressants, known as FIASMAs, can halt the growth or kill four different intracellular bacterial pathogens. These drugs target cholesterol trafficking in cells, bypassing direct bacterial targeting and potentially providing an alternative to antibiotics.
Researchers found that hand hygiene was effective in limiting transmission of ESBL K. pneumoniae, but additional measures like environmental decontamination were necessary to prevent spread of ESBL E. coli. Wearable sensors tracked human contact patterns over eight weeks, revealing the importance of close proximity interactions.
Research found that wild boars, hunting dogs, and hunters in Brazil are carriers of Rickettsia bacteria, transmitted through ticks. The study highlights the importance of public action planning to prevent neglected vector-borne diseases in overlapping areas.
Researchers at LSU Health Sciences Center have identified a potential target for treating Chlamydia, a common STD that can cause severe outcomes if left untreated. The study found that small molecules produced by the gut microbiome can kill Chlamydia bacteria by forcing it to produce ammonia.
A new study has helped develop a treatment option for multi-drug resistant (MDR) infections, including complicated urinary tract infections. The treatment, tebipenem pivoxil hydrobromide, is an oral antibiotic agent that may facilitate earlier discharge from hospital or treat complex infections in the community.
Researchers at Swansea University have found that Manuka honey is effective in killing antimicrobial resistant bacteria by 39%, improving the activity of some antibiotics. This could provide an alternative treatment for cystic fibrosis patients struggling with deadly, antibiotic-resistant respiratory infections.
A new study has found that cranberry extract makes bacteria more sensitive to antibiotics, reducing resistance and allowing for lower doses to be effective. This breakthrough could help combat the growing threat of antibiotic resistance.
A global study has discovered that concentrations of antibiotics in some world rivers exceed 'safe' levels by up to 300 times. The research team detected antibiotic contamination at 65% of sites monitored across six continents, with the most prevalent being trimethoprim and ciproflaxacin.
A team of researchers at ICFO have devised a novel technique to prevent biofilm formation on surgical implants by using gold nanoparticles to convert light into heat, killing bacteria. The method has shown promising results in preventing the formation of bacterial biofilms and eliminating the need for antibiotic treatments.
A Finnish study proves that 79% of thrombus aspirates from stroke patients contain DNA from oral pathogens. This research highlights the importance of oral health and good dental hygiene in preventing serious health damage.
A new study finds that extracts from three Civil War-era plants have antimicrobial activity against multi-drug resistant bacteria, which were commonly used in treating wound infections. The research suggests these plant-based remedies may have saved limbs and lives during the war.
A California study reveals chronic Q fever cases may be more common than previously believed, with a higher case fatality rate than national averages. Meanwhile, a mass treatment campaign in Bolivia has effectively eliminated human fascioliasis, a parasitic worm disease once prevalent in up to 25% of the population.
Researchers at Caltech have unveiled the 3D molecular architecture of Legionella pneumophila's Type IV secretion system, a sophisticated machinery used by dangerous pathogens to infect human cells. The discovery could enable the development of precisely targeted antibiotics to combat diseases like Legionnaires' disease and whooping cough.
Researchers at Indiana University School of Medicine have developed an electric field-based dressing that can disrupt and treat bacterial biofilms, which are responsible for many wound infections. The dressing, combined with other medications, shows promise as a potential game-changer in treating antibiotic-resistant infections.
A new modeling study suggests that rapid tests for drug-resistant infections could turn the tables against bacteria, allowing doctors to target resistant strains with precision. However, the researchers found that asymptomatic carriers must also be screened and treated to reverse the spread of resistance.
Researchers have discovered that gamma/delta T cells are the specific cells mediating the mouse's defense against Staphylococcus aureus (MRSA) infection. In a study published in the Proceedings of the National Academy of Sciences, researchers identified V gamma 6/Vdelta 4+ gamma/delta T cells as the key players in this response.
A recent study has found that endosymbionts in amoebae significantly influence the proliferation and spread of Legionella pneumophila. The researchers discovered that these bacteria weaken the infectivity of Legionella by competing for nutrients, ultimately leading to slower multiplication and reduced virulence.
A study published in Cell Host & Microbe identifies a previously unknown bacteria-killing protein RELMα that requires dietary vitamin A to work. The researchers found that mice fed a diet deficient in vitamin A made no RELMα, and those missing the protein were more susceptible to infection.
A new study reveals that several species of bacteria reside in bladder tissue of postmenopausal women who experience recurrent urinary tract infections. The findings provide a better understanding of the interaction between bacteria and host tissue, which may lead to more effective treatment strategies for this chronic condition.
The T2Bacteria Panel accurately diagnoses common bloodstream infections in 3-8 hours, compared to 24-72 hours for blood cultures. This rapid diagnosis may improve clinical outcomes by shortening the time to appropriate antibiotic treatment.
A recent study from UT Southwestern Medical Center reveals that several species of bacteria can invade the bladder walls in postmenopausal women with urinary tract infections. The findings suggest that antibiotic treatment may not be effective due to high levels of bacterial resistance and a lack of targeted therapies.