Articles tagged with Bacterial Infections
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Researchers have discovered that secondary infection with MRSA often kills influenza patients due to altered antibacterial response of white blood cells. The flu virus can cause extensive lung damage by suppressing the ability of macrophages and neutrophils to kill bacteria, leading to lethal inflammation.
Researchers found that crown gall tumors host a unique bacterial community with varying compositions compared to healthy vines. Some bacteria inhibit tumor growth while others provide protection and nutrients, helping control the disease.
A Danish nationwide register study found hospitalization with infection was associated with a 42% higher risk of suicide death. Individuals with hepatitis and HIV or AIDS had the highest risk, highlighting potential biological factors contributing to suicidal behavior.
Researchers have developed a new model to study the phenomenon of secondary bacterial pneumonia caused by S. aureus and influenza A virus. The model, which simulates the natural pathogenesis of infection, reveals that viral infection induces bacteria to disseminate to the lungs.
A NSF-funded mathematician is working on a model to track how to fight A. aegypti mosquitoes carrying the Zika virus using Wolbachia-infected mosquitoes, reducing their lifespan by a day or two. The goal is to create an endemic population that can displace the virus-carrying population in the wild.
Researchers at the University of Oxford have developed a machine learning tool to diagnose childhood pneumonia more accurately and cost-effectively. The tool uses data from basic equipment such as pulse oximeters, thermometers, and stethoscopes, achieving high sensitivity and specificity rates compared to existing guidelines.
A Finnish study found that nearly 60% of patients with coronary artery disease also had dental root tip infections. The researchers discovered a strong link between the two conditions, suggesting that oral infections may contribute to heart disease risk. Root canal treatment may help reduce this risk.
A new strain of C. difficile is killing up to 15% of infected patients due to its potent toxin that destroys protective cells, leading to increased inflammation. Researchers suggest blocking the toxin could lead to a new treatment to stop this deadly strain.
Researchers found that PGLYRPs can inhibit chlamydia infections by targeting the bacteria's stress response system. The study confirmed that PGLYRP solutions reduced the number of chlamydial inclusions by 10 times, and improved understanding of potential antichlamydial drug targets.
Researchers at UVA Health System have discovered a critical role of M-CSF in battling pneumonia. Without this cytokine, infected mice experience severe outcomes, including increased bacterial loads and organ failure.
Researchers at Indiana University School of Medicine found that the body's immune response system malfunctions during severe bacterial infections, leading to permanent damage to blood-producing cells. This discovery provides a new target for protecting the immune system during major infections.
Researchers aim to create a sensor that can coat medical implants and use X-ray beams to detect localized bacterial infections. The goal is to cure these infections early, reducing costly and tedious surgical procedures.
Researchers at the University of Missouri discovered that a manufactured form of lactoferrin can help protect premature infants from staph infections. The study found that giving very-low-birth-weight premature infants lactoferrin virtually eliminated germs responsible for staph infection.
Researchers found that contact with infected patients, mechanical ventilation, and infections with multidrug-resistant organisms increase the risk of acquiring CP-CRE. Cephalosporin antibiotic use may also reduce the risk of transmission compared to other antibiotics.
Researchers at UT Southwestern Medical Center have identified a new route of entry for the tuberculosis bacteria, suggesting an alternative to traditional inhalation-based transmission. This finding opens up potential avenues for developing new therapies to prevent or treat tuberculosis infection.
A new study has developed a methodology to analyze bacterial virulence factors and identify therapeutic targets for developing effective antimicrobial agents. The TREP approach was applied to Haemophilus influenzae, a respiratory pathogen that causes COPD symptoms, revealing potential blocking elements for invasion.
Research found that patients hospitalized for mania were more likely to be on antibiotics to treat active infections than healthy controls. This link between infection, antibiotics, and manic episodes adds evidence to the gut-brain axis theory, suggesting that a person's microbiome plays a role in psychiatric symptoms.
Researchers at Worcester Polytechnic Institute and the University of Massachusetts Dartmouth discovered flavonols in cranberry juice significantly reduce E.coli adhesion, which can cause bacterial infections. The findings may lead to new antibiotic drug targets and alternative treatments for 'superbugs'.
Cirrhosis patients experience impaired immunity due to gut bacteria migration into the liver. Scientists identify that Type-1 IFN released by immune cells incapacitates the immune system, leading to fatal bacterial infections. Strengthening the immune response may now treat life-threatening infections without antibiotics.
A study by Duke Health and Duke-National University of Singapore Medical School reveals bladder cells' secreted chemicals can clear urinary tract infections. The research suggests new targets for developing remedies and provides insights into the herb Forskolin's impact on UTIs.
The Infectious Diseases Society of America and American Thoracic Society recommend a 7-day or fewer antibiotic course for most hospital-acquired pneumonia (HAP) and ventilator-associated pneumonia (VAP) infections. Hospitals should create antibiograms to determine causative strains and ensure effective treatment.
Scientists have created a detailed structural model of aerolysin, a bacterial toxin that causes gastroenteritis and sepsis. The high-resolution imaging reveals the toxin's mechanism of action, including its formation of a pore in target cells.
Researchers at Umeå University found that reactive oxygen species (ROS) can dampen inflammatory processes and weaken the immune system's ability to combat bacterial infections. This discovery challenges the long-held assumption that ROS always contribute to inflammation.
A new transparent skull implant developed by UCR researchers allows for minimally invasive laser-based treatments for patients with brain disorders. The implant's biocompatibility and ability to endure bacterial infections make it a promising alternative to currently available cranial implants.
A study found that 14% of patients kept a stash of antibiotics at home and 40% used them without a prescription. Self-prescribing can lead to antibiotic resistance and serious side effects, highlighting the need for proper medical guidance.
Researchers at Osaka University identified a human immune receptor that detects pathogenic microorganism invasion, which recognizes cleaved antibodies and fights immune evasion mechanisms. This discovery contributes to the development of new treatments and prevention strategies against infectious diseases.
Researchers from Institut Pasteur and Université catholique de Louvain identify genetic and metabolic mechanisms underlying the therapeutic action of a bacteriophage. The study reveals that RNA metabolism plays a crucial role in the infection strategy of the bacteriophage, with control mechanisms involving small RNA and antisense RNA.
A deadly bacteria, Burkholderia pseudomallei, can travel to the brain and spinal cord within 24 hours, according to a new Griffith University study. The findings could lead to discoveries on how other common bacteria enter the spinal cord.
Researchers at Boston Children's Hospital have discovered a new potential avenue for controlling severe bacterial infections and sepsis. The study reveals that a protein fragment called gasdermin-D-NT can kill both bacteria and infected cells, offering a defense against antibiotic-resistant infections.
Researchers at Stanford University School of Medicine developed a diagnostic test that can distinguish between bacterial and viral infections using just seven human genes. The seven-gene test is more accurate, cheaper, and faster than earlier tests, with the potential to reduce antibiotic misuse and save healthcare systems money.
A recent study reveals that bacteriophage PAK_P3 degrades bacterial RNAs and scavenges pyrimidine nucleotides to replicate. This finding highlights the prominent role of RNA metabolism in phage infection, offering a new understanding of phage therapy's potential.
A new study found that reducing antibiotic prescribing for respiratory tract infections does not increase the risk of serious bacterial complications. However, it also suggests that practices with lower rates of antibiotic prescribing had slightly higher rates of pneumonia and peritonsillar abscess.
Having a first-degree relative hospitalized with confirmed staph infection significantly increases the risk for microbiologically confirmed Staphylococcus aureus bacteremia. The risk is higher if the infected patient is a sibling than a parent, according to researchers who analyzed data from Denmark.
Researchers at the University of Wisconsin-Madison have confirmed that a benign bacterium called Wolbachia pipientis can completely block transmission of Zika virus in Aedes aegypti mosquitoes. The bacteria, which are self-sustainable and low-cost, can also reduce vector competence in mosquitoes and impact their infection status.
A new E. coli-based transport capsule has been developed to improve the efficiency of next-generation vaccines, with promising results in fighting pneumococcal disease. The capsule uses a harmless strain of E. coli wrapped in a synthetic polymer to deliver antigens and trigger an immune response.
Researchers discovered that bacteria can amplify disease-inducing genes to quickly cause infection. The study found that the essential proteins needed to form the poisonous syringe are produced through a 'copying machine' when the bacteria come into contact with host cells, enabling rapid infection.
Researchers have developed a novel approach to disrupting bacterial biofilms, which are nearly impossible to eradicate when pathogenic. The technique targets extracellular DNA and DNABII proteins in biofilms, resulting in the collapse of bacterial communities and bacterial clearance.
Researchers at UVA Health System identified a link between C. difficile infection and allergy-causing immune cells, offering potential solutions for prevention through targeted probiotics. The discovery has immediate implications for therapy, as maintaining the natural gut microbiome may prevent life-threatening infections.
Researchers found that oral bacteria cooperate to make a pathogenic bacterium more infectious by providing an oxygen-rich environment. This cross-respiration allows the pathogen to grow and thrive, leading to worse infections.
The study reveals that Group B streptococcus (GBS) uses the enzyme hyaluronidase to evade the immune system during pregnancy, leading to neonatal morbidity and mortality. Blocking this enzyme could lead to eradication of GBS and new treatments for other ascending infections.
Researchers are investigating genetic variations and unconventional T-cells that enable macrophages to resist Mtb infection in HIV-positive individuals. The study aims to identify biomarkers of resistance and novel approaches to TB vaccine and treatment.
Scientists at CNIC discover how immune cells adapt to live bacteria through mitochondrial metabolism changes. The study found that detection of live bacteria triggers a change in the mitochondrial electron transport chain, enabling macrophages to redirect metabolic routes for efficient energy production.
A new tool called MDSINE predicts the behavior of the human microbiome, which could lead to the development of new treatments for serious diseases. The algorithm is applied to predict the dynamics of C. difficile infections and analyze the effects of probiotic cocktails on bacterial communities.
Researchers at Georgia State University found that certain viruses like influenza and coronaviruses can survive on children's toys for up to 24 hours, placing children at risk. The study suggests implementing strategies for decontamination, such as frequent cleaning with household bleach, to prevent the spread of disease.
Researchers at Johns Hopkins Medicine successfully diagnosed or ruled out suspected brain infections using next-generation genetic sequencing. The technique has the potential to bring diagnosis rates for inflammatory brain disorders and infections closer to 100 percent, enabling more effective treatment.
Research at ASM Microbe meeting reveals a new way bacteria can cause dramatic changes in human cells, leading to contact lens wear complications and inflammation. The study identifies key genes responsible for bleb formation, which may lead to novel therapies to prevent infection-associated inflammation.
A new study identified a population of monocyte-derived cells that play a significant role in destroying Legionella bacteria. These cells respond to the infection within 24 hours and can control the bacteria, with researchers hoping to develop new treatments to strengthen the immune system.
Researchers used genome sequencing to determine when TB outbreaks ended by analyzing genetic mutations and transmission patterns. The method helped public health officials declare the end of an outbreak in January 2015, after no disease transmission occurred since mid-2012.
A virus has been found to use a 'stolen' CRISPR system to hijack its host's immune response, allowing it to fight off other viral infections. The Cyanophage N1 virus uses a CRISPR sequence typically used by bacteria to defend against viruses.
A new clinical trial shows that drinking 8-ounce glasses of cranberry juice daily reduces recurrent UTI episodes by nearly 40%. Cranberry consumption may help alleviate the burden of antibiotic resistance and improve quality of life for women suffering from recurring UTIs.
Researchers successfully treat deadly MRSA infection in animals using the combination of antibiotic TXA709 with cefdinir, reducing potential resistance and side effects. The new treatment approach aims to develop a new class of antibiotics to combat rising antibiotic-resistant infections.
A new method enables rapid isolation and concentration of infectious bacteria from complex clinical samples, accelerating bacterial identification and antibiotic susceptibility testing. This breakthrough uses an engineered pathogen-binding protein to capture live pathogens from joint fluids, allowing for faster and more accurate diagno...
Researchers at Columbia University Irving Medical Center have discovered that a narrow wavelength of ultraviolet (UV) light, known as far-UVC, safely kills drug-resistant MRSA bacteria. This finding offers a potential solution to reducing surgical site infections, a major public health concern.
Systemic glucocorticoids increase risk of life-threatening staph infections by 2.5 times, with higher doses associated with greater risk
Scientists compared 64 Staphylococcus aureus strains' genomes to develop a comprehensive understanding of the bacteria's virulence and antibiotic resistance. The study revealed that 19% of genes are essential for life, while dispensable genes offer advantages in specific environments.
Researchers from Tomsk State University have discovered that bats can act as transmitters of infections, including those caused by bacteria and nematodes. The study found gamasid mites in bat samples, which are common among rodents, indicating close contact between the two species.
The Wyss Institute aims to discover why some individuals tolerate infectious pathogens while others exhibit life-threatening responses, which could inform the development of novel therapies. The project will search for and identify examples of tolerance across several species through experiments with clinically-relevant pathogens.
Researchers at University of Oxford have identified two long intergenic noncoding RNA genes associated with an increased likelihood of developing bacteraemia when infected with Streptococcus pneumoniae. The genetic variants carry a doubled risk, highlighting the importance of diverse population studies.
Researchers discovered a bacteriophage virus in Connecticut that targets multi-drug resistant Pseudomonas aeruginosa, making it susceptible to existing antibiotics. This 'phage' therapy has the potential to treat life-threatening infections and preserve medical options against deadly bacteria.
Scientists have identified a novel metal scavenger, staphylopine, produced by the pathogenic bacterium Staphylococcus aureus. This discovery could lead to the development of new antibiotics targeting the bacteria's addiction to metals.