Articles tagged with Bacterial Infections
Scientists at Imperial College London discovered that persister cells manipulate immune cells, potentially opening new avenues to clearing these cells from the body. The study found that persisters weaken the power of macrophages, a key part of our arsenal against infection.
Researchers analyzed the interactions between five core species of bacteria found in the fly gut, revealing a nuanced tradeoff between lifespan and fecundity. The study suggests that the presence or absence of individual species influences the host's fitness, and that the microbiome's influence cannot be solely attributed to its parts.
Researchers discovered that a bacterial protein, DnaK, interferes with cell response to and repair of DNA damage, increasing cancer risk. The study suggests that bacterial infections may contribute to more cancers than previously thought.
Researchers discovered that babies with a diverse range of nasal bacteria tend to recover faster from their first respiratory virus. Conversely, those dominated by certain bacterial families are more likely to experience prolonged symptoms.
Researchers developed nanoparticles that detect proteases produced by bacteria and immune cells, allowing for faster diagnosis of pneumonia. The sensors can indicate whether antibiotics are effective in treating the infection.
Researchers have identified a set of genes that enable S. epidermidis to cause disease in certain circumstances, making it a major concern for those undergoing surgery. The study aims to identify patients at high risk of infection before surgery, reducing the risk of post-operative infections.
Researchers developed a rapid diagnostic tool using a small, inexpensive biosensor to provide instant and accurate results. The device can detect bacteria and screen their interaction with antibiotics, giving healthcare practitioners more information for accurate treatment decisions.
Researchers identified a more pathogenic strain of S. aureus associated with increased biofilm formation and transmission risk, linked to postoperative infections. Decolonizing patients and maintaining hand hygiene compliance are crucial in controlling the spread of this strain.
Researchers discovered an enzymatic reaction cascade generating the essential 6-membered ring in mupirocin production. The finding builds on earlier research and could lead to the development of new antibiotics with improved properties.
Researchers have discovered a previously unknown protein called TarP that helps multi-resistant bacteria evade the human immune system. This breakthrough could lead to new therapies against MRSA and other resistant pathogens.
Researchers discovered that Clostridium difficile toxins induce apoptosis in intestinal epithelial cells, providing a defense mechanism against the pathogen. The findings suggest that this cell death response protects the host from C. difficile infection, raising potential for therapeutic strategies to target gastrointestinal pathogens.
A new toxin discovered in Pseudomonas aeruginosa has been found to degrade DNA and stop the growth of rival bacteria, providing insight into bacterial warfare mechanisms.
Scientists discover functional genes for producing terpenes and carotenoids in mites, which could lead to new ways of controlling chigger bites and potentially treating scrub typhus. Ancient horizontal gene transfer from soil bacteria and fungi is found to be responsible for these genetic surprises.
Researchers found that patients infected with multi-drug resistant and extensively drug resistant bacterial infections, especially Gram-negative infections, had significantly higher mortality rates. The study highlights the urgent need for increased surveillance, research, and antimicrobial stewardship efforts worldwide.
Healthcare-associated infections persist in the EU/EEA, with 8.9 million cases annually, due to overuse of antimicrobials and varying infection prevention practices. The European Centre for Disease Prevention and Control (ECDC) calls for continued action to address antimicrobial resistance in healthcare settings.
A new study conducted by researchers at the University of Copenhagen has shown that faeces transplantation can significantly reduce the incidence of necrotizing enterocolitis (NEC) in pigs born prematurely. The treatment involves transferring faeces from healthy donor pigs to the rectal opening, resulting in a 75% decrease in NEC cases...
Researchers found that bacterial toxins from Staphylococcus aureus reduce the number of cells suppressing the immune response, leading to excessive immune responses. Weakened enterotoxins could potentially be used to induce stronger immune responses in cancer treatment.
A study by Hannah Frank and colleagues reveals humans play a significant role in changing infection patterns, including spillover from animals to humans.
A team of engineers discovered a microgel powder that reduces bacteria and virus ability to infect by at least 99 percent. The powder, made from hydrogen peroxide, is reusable and can be used in various applications such as remote clinics or war zones.
Experimental inhibition of prostaglandin E2 enhanced the ability of mice to combat infectious colitis, resulting in increased migration of defense cells and production of antimicrobial peptides. Inhibiting PGE2 also favored the expression of defensins, considered natural antibiotics, in the colon.
Julie Pfeiffer's groundbreaking research has redefined how we think about life-threatening viral infections, discovering new ways bacteria affect virus infection. Her work shows antibiotics can have antiviral effects, driving research into new treatments for viruses.
A combination therapy of polymyxin B/trimethoprim has shown promising results against bacterial keratitis, a leading cause of blindness. The treatment eradicated infections in 70% of animal models and showed a low rate of spontaneous resistance.
Researchers found that pneumolysin can interact with a special receptor in immune cells, triggering an anti-inflammatory response. This allows the bacteria to hide from further attack and grow, eventually giving rise to pneumonia. The study's findings may lead to new strategies for tackling pneumococcal infections.
Researchers discovered that mitochondria deploy ROS to destroy invading MRSA bacteria by packaging and delivering these molecules to the phagosome, bypassing traditional immune mechanisms. This backup system helps immune cells fight off pathogens with increased effectiveness.
A team of researchers has fully unveiled the sophisticated mechanism of bacterial toxins, including the Tc toxin complex used by the plague bacterium and other germs. The study reveals a molecular gatekeeper that controls the poison's exit, offering new insights for developing innovative therapies to combat bacterial infections.
A new antibiotic, zoliflodacin, has shown promising results in treating uncomplicated gonorrhea infections with a single oral dose. The study found a cure rate of 96% for participants treated with zoliflodacin, compared to 100% for those treated with ceftriaxone.
Researchers have discovered a Chlamydia protein that manipulates human cells by removing ubiquitin and acetylation, essential for the bacterium's survival. This finding could pave the way for treating Chlamydia with fewer antibiotics.
The study estimates that antibiotic-resistant bacteria cause a substantial burden of disease in the EU/EEA, with 75% attributed to healthcare-associated infections. The annual number of deaths due to these infections is comparable to that of influenza, tuberculosis, and HIV/AIDS combined.
Researchers attach molecular attachment r8 to conventional antibiotics, helping them penetrate bacterial outer defenses and linger, increasing effectiveness against methicillin-resistant Staphylococcus aureus (MRSA). The approach demonstrates potential for treating other drugs and infections with existing modifications.
A study reveals lymph nodes as reservoirs of persistent tuberculosis infection, where the bacteria can persist for extended periods. This finding has significant implications for tuberculosis treatment and patient outcomes.
A study published in PNAS found that the Mincle receptor initiates an antibacterial response to Group A Streptococcus upon recognition of MGDG, an anchor of lipoteichoic acid. The receptor plays a critical role in the immune response to GAS and may provide a therapeutic option by increasing antibacterial immunity.
Patients with drug-resistant urinary tract infections are more likely to experience worse clinical outcomes and relapses within a week. The study highlights the importance of close follow-up and proper antibiotic treatment to curb antibiotic resistance.
Researchers found a correlation between showerhead bacteria and lung infections in areas with high pathogenic mycobacteria presence. Households with chlorinated water had higher mycobacterial abundances, highlighting the public health relevance of showerhead biofilms.
Researchers have discovered the mechanism by which Mycoplasma genitalium adheres to human cells, a crucial step in bacterial infection and disease development. The study reveals the three-dimensional structure of the P110 adhesin protein interacting with sialic acids on human cell surfaces.
A study by University of Colorado researchers found genetic variants in the FUT2 gene increase the risk of recurrent or chronic middle ear infections in children. The variants affect the microbiome of the middle ear, making it more susceptible to specific bacteria.
Researchers identified a cluster of five risk factors associated with unhealthy gut microbial communities, which can increase the risk of C. diff infection. The study suggests potential preventive interventions, including dietary changes and fecal transplantation from healthy donors.
A team of scientists developed a fluorescent imaging probe that can rapidly visualize Gram-negative bacteria in human lungs. The probe successfully detected bacterial lung infections in six patients with bronchiectasis and seven ventilated ICU patients without causing major adverse effects.
A new bacterial imaging probe has been shown to be safe for patient use and can detect deadly pneumonia infections in under 60 seconds. This technology uses chemical probes that light up when they attach to specific types of infectious bacteria, allowing for real-time detection and monitoring.
Case Western Reserve researchers discover small molecules that block toxin formation in bacteria, allowing infected mice to survive. The breakthrough could lead to a solution for the global threat of antibiotic resistance.
A new study found that of 25 newly introduced antibiotics between 1999 and 2014, only 12 had sales in over 10 countries, highlighting the need for improved global distribution.
Researchers found that high-temperature laundry methods failed to remove all traces of C. difficile spores from hospital bedsheets, suggesting linens as a potential source of infection. The study calls for further research to establish the true burden of hospital bedsheets in outbreaks.
Researchers found that integrating livestock and wildlife on the same lands can reduce tick abundance, enhance biodiversity, and increase revenue for local farmers. The practice of regularly spraying cattle with acaricides also played a key role in reducing ticks and associated diseases.
A new test, DETECT, can diagnose patients with antibiotic-resistant strains of bacteria in a matter of minutes. The technique identifies the molecular signatures of antibiotic-resistant bacteria directly in urine samples.
Researchers at Purdue University have discovered a light-active version of heme that can help inactivate methicillin-resistant Staphylococcus aureus (MRSA) infections. The technology uses a simple LED array to activate the photosensitizer, which rapidly kills MRSA strains.
Carnegie Mellon University researchers identified a molecule called BriC that plays a key role in bacterial communication and infection. BriC helps pneumococcus produce biofilms, making infections more robust, but may also be a target to render bacteria more sensitive to antibiotic treatment.
UCSB, UCSD, and SBP researchers developed a method to track sepsis development on a molecular level, revealing different pathways depending on host responses to various pathogens. Boosting anti-inflammatory activity or blocking TLR-4 activation showed potential as therapeutic approaches.
A study found that pneumococcus bacteria can spread at the same rate whether it is dry or wet, and when a person picks or pokes their nose as when they rub their nose. Ensuring good hand hygiene and keeping toys clean could help protect young children from catching and spreading the bacteria.
A NIH study found that probiotic Bacillus eliminates Staphylococcus bacteria, preventing its growth in the gut and nose of healthy individuals. The researchers identified fengycins, a specific class of lipopeptides, as the substance responsible for inhibiting S. aureus sensing system.
Research reveals 73% of patients with drug-associated infective endocarditis are uninsured or on Medicaid, adding significant burden on hospitals and government budgets. The median hospital charge for valve replacement surgery exceeds $251,000, with over 280 surgeries performed annually in North Carolina.
Researchers at Rutgers University have discovered a new delivery system that can effectively combat bacterial infections. The nanostructured silica particles contain payloads of an antimicrobial agent and were found to be more effective at killing bacteria than the agent alone.
Biofilms are a huge medical problem due to their difficulty in treating bacterial infections. Researchers at Yale University have found a key mechanism for biofilm formation, enabling the study of this process in a controlled way.
Researchers found antibiotic-resistant bacteria in sink traps of an Israeli hospital's intensive care unit. Implementing sink contamination prevention guidelines eliminated new infections and zeroed out infections altogether. The study highlights the importance of proper hygiene practices in preventing the spread of resistant bacteria.
Scientists at Scripps Research have discovered the role of USP18 in the immune system. Deleting this protein enhances the body's ability to control infections with Gram-positive bacteria, while its normal induction impairs antibacterial responses. Researchers hope to develop therapies targeting USP18 to treat bacterial infections.
Researchers have developed a new antibiotic that can target Mycobacterium tuberculosis bacteria hiding in macrophage immune cells. The peptide-based drug kills the bacteria by weaponizing copper ions, which are toxic to them.
Salmonella bacteria produce proteins that mimic DNA and target specific immune response genes, leaving others untouched. This precise mechanism allows the bacteria to fine-tune the host's immune system.
A study found that 67% of vampire bats in Belize and Peru are infected with Bartonella bacteria, which can cause endocarditis. The research suggests transmission may occur through bites or environmental contamination, highlighting the risk of cross-species transmission.
A pilot study found that hospital privacy curtains became increasingly contaminated with MRSA over time, especially when placed in patient rooms. The study recommends regular cleaning or replacing curtains to prevent healthcare-associated infections.
A study of 768 E. coli isolates from elderly patients with urinary tract infections found a high prevalence of resistance to β-lactams and other antimicrobials. Independent risk factors for multi-resistant E. coli included diabetes, recurrent infections, hospitalization, and exposure to β-lactams.
Researchers found that multidrug-resistant bacteria in CF patients' airways are associated with lower microbial diversity and more aggressive disease. The study suggests that judicious use of antibiotics is crucial to help patients live longer, but new methods can help target infectious bacteria selectively.
Researchers have discovered a new approach to combat antibiotic-resistant bacteria by tricking them into taking up a molecule that causes harm. Gallium, a metal similar to iron, is used as a Trojan horse to disrupt bacterial nutrition and shut down essential processes.