Articles tagged with Bacterial Infections
A study of 30,000 patients found that narrow-spectrum antibiotics performed equally well or better than broad-spectrum ones in treating common respiratory infections. Narrow-spectrum antibiotics had fewer adverse events and disruptions to family routines, while treatment failure rates were not significantly different.
Researchers found 457 novel phage sequences in bacterial genomes from the female urinary microbiome, suggesting a common set of phages that reside in the bladder. The study also indicates that phage may contribute to urinary health and offers potential alternative treatment for urinary tract infections.
Scientists discovered clues to disease risk lie in molecular switches controlling genes, not just the genes themselves. The study used human induced pluripotent stem cells to model immune response variation between people, revealing that genetic effects are often hidden if not thoroughly searched for.
A study by University of Oxford researchers reveals that bacteria approach conflict in a coordinated manner, responding to threats with collective retaliation. The research shows that different strains exhibit varying levels of aggression and can even detect incoming attacks to warn other cells, enabling sophisticated defense strategies.
Researchers at MIT and Albert Einstein College of Medicine isolate and study a new group of viruses that lack tails and can infect dozens of different types of bacteria. The Autolykiviridae provide key insights into viral evolution, bacterial populations, and the ocean's ecosystem.
A new family of viruses, Autolykiviridae, has been discovered that kill more marine bacteria than previously known tailed viruses. These viruses may also be present in the human gut and could play a role in maintaining the ocean's ecology and influencing human health.
Research connects preterm birth to adult heart disease by showing that fetal infection and inflammation disrupt genes crucial for normal heart development. This study uses a preterm animal model to demonstrate how inflammation can lead to incomplete heart development, increasing the risk of abnormal heart rhythms and heart failure.
A study found that pediatric cancer patients' microbiome diversity can predict the risk of developing blood infections, suggesting a link between gut health and bloodstream infections. The researchers argue that prevention and treatment strategies may depend on the source of infection, rather than relying solely on central line hygiene.
Researchers found seven percent of Austrian hunting dogs tested positive for the disease, highlighting a potential new vector for tularaemia transmission. The study suggests that asymptomatic dogs may pose an additional risk of infection for people.
Researchers found that lung bacterial infections and inflammation in cystic fibrosis patients start much earlier than expected in childhood. Therapies to break up mucus may offer the best route to a longer life for CF patients, as early intervention could dramatically increase quality of life.
Researchers developed a method using next-generation genomic sequencing to isolate infecting organisms after joint replacement surgery. The technique identified pathogens in over 80% of cases that previously went undetected, revolutionizing treatment for patients with joint-replacement infections.
Infections with MRSA bacteria appear to permanently compromise the lymphatic system, impairing its ability to pump lymphatic fluid. This impairment may contribute to frequent recurrences of MRSA infection in patients.
A recent study at Tampere University found that an eNose can identify the most common bacteria causing soft tissue infections without prior sample preparation. The device differentiates between MRSA and MSSA with high accuracy, reducing treatment times and costs.
A new study found that different strains of the same bacterial species can trigger vastly different immune responses in humans. Researchers discovered that distinct genes in each strain contribute to this variability, and may help explain why individuals respond differently to the same pathogens.
Research suggests that different bacterial strains can provoke varied immune responses in humans, contradicting previous studies that used a single strain. This variability is contributed by viruses infecting the bacteria, and may help predict disease outcomes and tailor treatment.
A team of scientists has developed SAAP-148, a compound that effectively targets and eliminates drug-resistant bacteria in biofilms. The peptide-based treatment shows promise in treating MRSA and Acinetobacter baumannii infections, with plans for a clinical trial in 2018.
Researchers at the Babraham Institute have discovered that good bacteria in the gut can control gene expression by producing short chain fatty acids, which increase crotonylations and affect gene activity. This process may help prevent cancer and fight infections, highlighting the importance of a healthy diet and gut bacteria.
Researchers found that SOBER1, a plant protein, removes acetyl groups added by bacterial proteins, preventing the plant's immune response. This discovery could lead to strategies to boost plants' natural immunity or contain infections threatening agricultural crops.
A new radiotracer, 18F-FDS, has been developed to identify and track bacterial infections in the lungs. The tracer was tested on mice with live bacteria or dead bacteria to induce inflammation, and it successfully differentiated between lung infection and inflammation.
Researchers at University of Queensland developed a new supercharged antibiotic called vancapticins that target bacterial membranes, potentially revitalizing old antibiotics. The rebooted vancomycin has the potential to treat MRSA and VRE, addressing the growing threat of multi-drug resistant bacteria.
Researchers found that dietary trehalose enhances the virulence of epidemic C. difficile lineages, leading to increased disease severity and mortality in animal models. The study suggests that trehalose may be a key trigger for the predominance of these lineages, contributing to hospital-acquired infections.
Researchers propose alternative therapies for mild infections to slow antibiotic resistance development, maintaining effectiveness for severe infections. This approach involves targeting milder bugs that can indirectly hinder the spread of resistant strains.
Bacteria evolve resistance to antibiotics in small infections, which can drive superbug development; alternative treatments for these small infections could preserve antibiotic effectiveness
Researchers found that Wolbachia-infected mosquitoes exhibited reduced dengue virus transmission potential by up to 50% compared to uninfected mosquitoes. Laboratory conditions underestimated this effect, suggesting improved vaccines and disease management approaches are needed.
Researchers found that repeated low-grade bacterial infections can lead to severe inflammatory disease and potentially life-threatening colitis. The study also identified a link between Salmonella infection and an acquired deficiency of intestinal alkaline phosphatase, which accelerates inflammation.
A new study reveals that platelets actively migrate to sites of infection, collecting bacteria into aggregates and facilitating the activation of neutrophils. This active function has significant implications for our understanding of immune defense and potential therapeutic targets for inflammation reactions.
Researchers at BIDMC used AI to develop an automated microscope system that can quickly and accurately identify images of bacteria, reducing the reliance on human clinical microbiologists. The system achieved nearly 95% accuracy in identifying three types of bacteria, paving the way for a future diagnostic platform.
A recent study by Tara C. Smith, Ph.D., found a higher-than-expected prevalence of Staphylococcus aureus and methicillin-resistant Staphylococcus aureus (MRSA) at beaches around Lake Erie. The study revealed that MRSA levels were more than 40% higher in the summer when beaches are most heavily used.
Researchers at Lund University developed a specially designed protein that targets and kills multiple bacterial species, including Gram-positive bacteria. The fusion protein works by removing Factor H from the surface of bacteria, activating the immune system to kill them.
A study found that lactic acid bacteria can protect against different subtypes of influenza A virus, resulting in reduced weight loss and lower amounts of virus replication in the lungs. The researchers used a heat-killed strain of Lactobacillus casei DK128 to pretreat mice before infecting them with the virus.
Scientists have developed a noninvasive tuberculosis test that can detect active infections in HIV-negative patients using urine samples. The test, which traps sugar molecules found on the TB bacterium's outer coat, has shown increased sensitivity and accuracy compared to previous methods.
Research from UIC suggests that antibiotics' ability to kill bacteria depends on their bond duration, not binding tightness. Bactericidal antibiotics, which can cure infections better than bacteriostatic ones, work by dissociating faster from the ribosome.
A new study from Columbia University Irving Medical Center reveals that cancer gene PTEN works with CFTR to keep lung tissue free of potentially dangerous infections. The findings may explain why cystic fibrosis patients have a higher risk of GI cancer.
A team of Norwegian researchers has developed a tool to monitor bacterial strains in cheese cultures, enabling prompt detection and countermeasures to maintain quality. The tool uses next-generation sequencing to analyze the epsD gene, which is involved in resisting phage and producing exopolysaccharide.
MIT researchers discovered a way to make bacteria more vulnerable to quinolones, enabling existing drugs to kill bacteria that cause chronic infections. Delivering quinolones along with glucose and fumarate can eliminate several types of bacteria, including Pseudomonas aeruginosa and Staphylococcus aureus.
Researchers found hundreds of protein folds present across all superkingdoms of life and in various viruses, suggesting an ancient origin. The study also revealed exclusive gene transfers between specific groups of viruses and their hosts, pointing to unknown mechanisms for viral genetic material exchange.
Researchers found that certain bacterial strains can produce factors that increase or decrease the susceptibility of another bacterium to antibiotics. The study identified three specific factors: LasA, rhamnolipids, and HQNO, which could be used to create new antibiotics or develop genetic tests to detect antibiotic resistance
Researchers discovered Listeria monocytogenes can change its behavior when infecting liver and placenta cells, producing a dormant form that is more tolerant of antibiotics. This finding explains the long incubation period of listeriosis and may lead to new therapeutic strategies.
A recent study found that antibiotics like ciprofloxacin can directly alter the biochemical environment of mouse immune cells during infection, making it harder for them to kill bacteria. This change in environment also led to increased resistance to antibiotics in E. coli bacteria.
Researchers discovered H. pylori's two additional strategies to target mitochondria, which maintain an environment conducive to bacterial proliferation and worsen gastric lesions in mice. The findings suggest new avenues for developing effective strategies to combat H. pylori infection and reduce its pathogenic potential.
A study found that fecal transplant using oral capsules was as effective as colonoscopy in preventing recurrent Clostridium difficile infection. The treatment prevented CDI recurrence in 96% of patients after 12 weeks.
A new study from the University of Copenhagen reveals that a garlic compound can destroy important components in bacteria's communication systems, which involve regulatory RNA molecules. This discovery has led to further development of a potential treatment for patients with cystic fibrosis and other chronic infections.
A new approach models and predicts the spread of 'superbugs' by analyzing genomic data, identifying key drivers of transmission and enabling early intervention. The method successfully pinpointed the facility origin of every patient's infection in a real-time outbreak simulation.
Researchers have developed nanosponges that can absorb and neutralize toxins secreted by bacteria causing intraocular infections. These engineered nanoparticles, consisting of a polymeric core surrounded by natural red blood cell membranes, demonstrated effectiveness in protecting the retina from damage in animal models.
Researchers discovered specific immune cells called B cells play a crucial role in eliminating mycoplasma bacteria from the lungs. Vaccines may be developed to elicit antibody responses protecting against infection, offering an alternative to antibiotics.
Scientists followed 150 adolescents infected with M. tuberculosis for several years, finding elevated immune system activity 1-2 years before diagnosis and suppressed gene expression in T cells before active disease began. This study provides a clearer timeline of biological events leading to pulmonary TB development.
Natural killer cells play a crucial role in controlling bacterial growth during lung infections, and their communication with immune response regulators helps orchestrate an antibacterial program. This study provides new insights into the development of novel therapeutics against multidrug-resistant pathogens.
Researchers have identified specific chemical receptors in cells that could deceive bacteria and improve patient response to drugs. The study's findings suggest that targeting these receptors could help adapt antibiotics to better attack infections.
A new shape-shifting polymer can target and kill Helicobacter pylori bacteria in the stomach, improving digestive health for billions worldwide. The agent morphs into a bacterial hole-puncher at acidic pH, killing H. pylori while sparing helpful gut bacteria.
Researchers at Queen's University Belfast have made a breakthrough in treating antibiotic-resistant bacteria Klebsiella pneumoniae. They discovered that the body's natural defences, specifically interferons, can fight back against the infection, offering new avenues for therapy.
Researchers at the University of Birmingham identified two previously unknown mechanisms that bacteria use to protect themselves from antibiotics. The discovery provides new insights into how bacteria develop resistance and could lead to the development of new drugs to combat bacterial infections.
Scientists have developed an antibacterial coating that embeds viruses to destroy bacteria, with the coated films retaining their effectiveness for up to three months. The coating, made from a combination of pullulan and trehalose, has shown promise in preventing bacterial contamination of food.
A study by UTHealth researchers found that a 'promiscuous' carbapenemase gene and a bacterial clone carrying an antibiotic-killing gene created the perfect storm for Colombia's antibiotic resistance epidemic. The gene spread horizontally across Gram-negative bacteria, while the clone was introduced via an infected patient from the US.
The study found Africa has the highest burden of GBS, causing 54% of estimated cases and 65% of stillbirths and infant deaths. A vaccine could potentially prevent 231,000 infant and maternal GBS cases with an 80% effective rate.
Bone infection can be debilitating and potentially fatal. Researchers at the University of Rochester Medical Center are advancing new treatments for bone infections by understanding how bacteria like Staphylococcus aureus evade treatment and developing new antibiotics to target those mechanisms.
Researchers at Ohio State University Wexner Medical Center developed an electric bandage that can prevent bacterial biofilm infections, combat antibiotic resistance, and enable healing in infected burn wounds. The bandage generates a weak electric field without any external power supply and is already FDA-cleared.
Researchers at UMD School of Medicine are studying a new approach to tackle antibiotic resistance by targeting the immune system's response to harmful bacteria. They aim to prevent inflammation and white blood cell activation using special molecules or peptides, which could pave the way for treating a wide range of infections.
Researchers at Arizona State University have developed new methods for detecting tuberculosis (TB), a deadly disease that kills over a billion people in the last two centuries. The new tests use nanotechnology to detect TB proteins in patient blood samples, providing rapid and accurate results.
University of Michigan researchers found that killer T cells use a multi-pronged attack to kill bacteria, targeting multiple processes. This discovery could lead to the development of new medications or repurposing of existing drugs to combat antibiotic-resistant pathogens.
A new study confirms outpatient antibiotic use is a primary risk factor for acquiring C. difficile infection in the community, and recent emergency department visits may also pose a risk. The study found that patients with community-associated C. difficile infections were more likely to have prior health care visits and taken antibiotics.