Articles tagged with Bacterial Infections
Photodynamic action weakens resistance to antibiotics in bacteria that attack airways, reducing the persistence of both standard and clinical strains. The study found that five cycles of PDI were sufficient to break the resistance of resistant bacteria.
Researchers have solved the molecular structure of a complete tailed virus with a flexible tail at unprecedented detail. This discovery has significant implications for phage therapies and the development of alternative treatments to antibiotics.
Researchers at Hong Kong University of Science and Technology have mapped the high-resolution structure of a little-known cyanophage virus, shedding light on its role in controlling marine biogeochemical cycles. The study provides new insights into how viral proteins interact to make the virus stable and infect cells.
Researchers found that aging urinary tracts experience cellular level changes favoring UTI establishment and recurrence. D-mannose supplementation restores autophagy and mitigates ROS, suggesting a potential treatment for age-related UTI dysfunction.
A new study found that deaths from infective endocarditis decreased overall in the US, but rose sharply among people ages 25-44, likely linked to the opioid crisis. Researchers call for more investigation into the trends and recommend comprehensive care plans including substance use disorder screening and treatment.
A six-month multidrug regimen is being evaluated against the standard nine-month treatment for adults and adolescents with tuberculous meningitis. The trial aims to generate evidence that could lead to improved treatment options and reduced mortality rates, particularly for high-risk groups such as pregnant women and adolescent children.
Researchers have developed a photoswitchable bactericide that can target either Gram-positive or Gram-negative bacteria using a light-driven 'switch'. The nanomaterial was shown to be effective in healing MRSA-infected wounds in mice models, offering a potential new solution to combat antibiotic-resistant infections.
A study of 50 children infected with Listeria monocytogenes at birth found that two-thirds had sequelae, mainly due to prematurity. Long-term screening and tailored support can be offered to inform science-based guidance for parents.
Researchers have found that Vibrio bacteria play a role in outbreaks of mortality among dark stinging sponges weakened by warming Mediterranean. The study suggests climate change may be impacting disease dynamics in sponges and their pathogens.
Researchers have developed a new mixture, organ agar, that enables them to screen bacteria more efficiently than traditional methods. This innovation allows for the testing of over 1,700 mutants of the UTI-causing bacteria Proteus mirabilis using only a quarter of the mice typically required.
Researchers at UC San Diego School of Medicine found that certain bacterial species dismantle protective molecules on vaginal cells, dysregulating cell turnover and response to surrounding bacteria. This study may help explain the association between bacterial vaginosis and adverse sexual and reproductive health outcomes.
Researchers at the University of Copenhagen discovered that phages use small RNAs to disarm bacterial CRISPR-Cas immune systems, making them vulnerable to infection. This finding has significant implications for phage therapy and could lead to more specific and controlled CRISPR-Cas treatments.
The study analyzed 170 known bacterial languages, grouping them into clusters based on molecular structure. Bacteria can understand related languages, but not those with vastly different languages. This understanding will aid in refining treatment approaches and developing biotechnology applications.
Researchers found that E. coli bacteria use iron levels to store information about behaviors like swarming and forming biofilms. These iron-based memories persist for at least four generations before disappearing, helping bacteria make informed decisions about their environment.
A new study by the University of Plymouth reveals that chlorine disinfectants used in hospitals are no more effective at killing off hospital superbugs than water. The research highlights the need for alternative strategies to tackle Clostridioides difficile, which causes diarrhoea, colitis and other bowel complications globally.
A recent study published in One Health found that feeding dogs raw meat significantly increases the risk of excreting antibiotic-resistant E. coli, a bacteria that can cause life-threatening infections. The researchers emphasized the importance of proper hygiene and sourcing high-quality meat to reduce this risk.
Researchers at Washington State University have created implantable metals that can kill 87% of bacteria causing staph infections in lab tests. The 3D-printed materials combine titanium with copper and tantalum, offering inherent antibacterial response and improved bone tissue integration.
A significant post-COVID resurgence in invasive meningococcal disease has been observed in France, with a notable increase in cases among young people aged 16-24. The study reveals that the disease has returned to pre-pandemic levels, with some serogroups targeting different age groups.
Researchers at Vanderbilt University Medical Center discovered iron storage 'spheres' inside C. diff bacteria, which are crucial for infection and offer new targets for antibacterial drugs. The study, published in Nature, also reveals that bacteria may compartmentalize biochemical processes in a way similar to eukaryotic cells.
A U-M study links increased physical independence, gut microbiome disrupting antibiotics, and hand contamination to vancomycin-resistant enterococci (VRE) environmental contamination in nursing homes. The study suggests that reducing antibiotic use and improving hand hygiene could control VRE spread.
A systematic review published in the journal Virulence reveals that introducing more diverse gut bacteria can improve outcomes for people and animals infected with cryptosporidium. This may be achieved through diet, probiotics, or faecal transplant therapy.
Researchers identified a novel bacterial protein, MceF, that can prolong cell longevity by acting directly on mitochondria. The discovery could lead to new treatments for diseases relating to mitochondrial dysfunction, such as cancer and auto-immune disorders.
Researchers created mini bladders to study bacterial interactions with human bladder tissue, finding that some bacteria form 'pods' to survive treatment. The study suggests a new approach for diagnosing and treating UTIs by identifying how the body responds to different bacteria.
Researchers at UTSA have discovered a novel strategy to inhibit the spread and infection of Vibrio cholerae, the bacteria responsible for cholera. They identified a peptide-binding domain that can disrupt the virulence of V. cholerae, preventing intestinal colonization and biofilm formation.
Researchers at the German Center for Infection Research have developed effective antibodies against Pseudomonas aeruginosa, a major challenge in healthcare systems worldwide. These monoclonal antibodies target the pathogen's type III secretion system and show promise as a highly potent treatment option for acute and chronic infections.
Researchers have discovered highly effective antibodies against P. aeruginosa that can block its type III secretion system and are effective against highly resistant bacteria. These 'pathoblockers' offer a potential therapeutic approach for treating acute and chronic infections with multi-resistant pathogens.
Researchers used AI to identify 2 promising antigens as candidates for a gonorrhea vaccine, which accurately predicted reduction of bacterial populations. The antigens were tested in lab and animal models, showing efficacy in killing bacteria and decreasing bacterial burden.
A study led by the University of Sydney found that many antibiotics for childhood infections have less than 50% effectiveness, leading to thousands of unnecessary deaths globally. The World Health Organization has declared antimicrobial resistance a top public health threat, emphasizing the urgent need for updated guidelines.
Mammalian cells consume bacteriophages, killing bacteria and promoting cellular growth and survival. The study suggests that phage particles serve as a nutritionally enriched resource, triggering signaling pathway events that enhance cellular health.
Scientists create molecular model of triglyceride transport in mycobacterial barrier, discovering 'Trojan horse' system to weaken pathogen's defenses. This breakthrough could lead to more effective therapies against tuberculosis.
Researchers discover biological mechanisms by which Wolbachia bacteria boost fruit fly fertility, with implications for controlling disease-spreading mosquitoes. The study reveals that Wolbachia infection restores fertility in flies with defects, enabling them to produce more offspring.
Scientists from Central South University develop a novel approach to address bacterial infection in bone transplantation by enriching H2O2 and amplifying the Fenton reaction. The technique enhances biocompatibility and safety, promising reduced transplant failures and post-operative complications.
Postoperative wound infections in the head and neck region are common complications, with risk factors including age, smoking, and comorbidities. Aseptic operating conditions and peri/postoperative antibiotics can help minimize infection rates.
Researchers studied how Mycobacterium tuberculosis forms cord-like aggregates that resist antibiotics and alter host cell behavior. The study revealed new insights into the biophysical mechanisms of cord formation and its impact on infection.
A study published in the Journal of Internal Medicine found that SARS-CoV-2 infection may worsen lower urinary tract symptoms in men. The research involved 17,986 men with medication for LUTS, half of whom had COVID-19, and showed a significant increase in urine retention, UTIs, and enlarged prostate issues.
A new study reveals a multi-drug resistant strain of E.coli, MDR ST131, can outcompete and displace other strains in the human gut. The research provides evidence that certain types of E.coli are more prone to developing antibiotic resistance, posing significant health risks.
A new study confirms the presence of deadly Vibrio bacteria in Florida's coastal waters following Hurricane Ian. The research, led by University of Maryland senior author Rita Colwell, found high levels of pathogenic Vibrio parahaemolyticus and Vibrio vulnificus, particularly in oyster samples from Lee County.
Acinetobacter baumannii bacteria can form special cells that survive for long periods in a dormant state, making antibiotic treatment challenging. The discovery could lead to new treatment concepts by targeting proteins involved in the transition to this slumber state.
Researchers have discovered a novel enzyme family related to bacterial pathogenicity in Gram-negative bacteria. The study revealed that enzymes involved in OPG synthesis and regulation play crucial roles in bacterial infection capability.
A new study reveals that innate CD8+ lymphocytes play a crucial role in limiting tuberculosis infection, and an inflammatory molecule called Interleukin-15 could be used to boost vaccine efficacy. Researchers found that these cells create a 'bottleneck' preventing bacteria from establishing active infection.
Scientists sequenced nearly 600 Klebsiella samples and found two-thirds are K. pneumoniae, with carbapenem-resistant strains confined to clinical settings. Genomic surveillance informs control measures against treatment-resistant infections.
Pioneering work on bacteriophages to combat disease has received an £800,000 boost from the Biotechnology and Biological Sciences Research Council. The grant will advance production of phages to combat disease in the veterinary field and bring them to market.
Researchers at the University of Virginia Health System are developing computer models to better understand the cellular processes and gene activity of multi-drug resistant bacteria Staphylococcus aureus and Pseudomonas aeruginosa. The goal is to identify vulnerabilities in these bacteria and advance the development of new treatments.
Scientists have discovered a TB vaccination strategy that prevents lung infection in monkeys infected with SIV, despite the vaccine being contraindicated for people living with HIV. The results show promise for protecting people with HIV against TB, which is the leading cause of death among them.
A study by Professor Mark Webber and his team found that the NRCS-A strain of Staphylococcus capitis is commonly carried on the skin and in the gut of uninfected neonatal babies, making transmission between babies within NICUs likely. The bacteria's unique genes allow it to survive in the gut, making cleaning the skin ineffective.
Researchers at the University of Sheffield have discovered a genetic scar that enables pneumonia-causing bacteria to become resistant to antibiotics. The study found that mutations in the pde1 gene act as an evolutionary gateway for this resistance, threatening patient treatment and highlighting the need for control measures.
A recent study conducted at the University of São Paulo's Medical School found that isolating patients with carbapenem-resistant Enterobacteriaceae (CRE) in emergency departments (ER) for over two days can significantly reduce CRE transmission. The researchers also discovered that the ER structure, including bed layout and hand hygiene...
Using data from Mass General Brigham’s electronic health records, researchers found that SARS-CoV-2 accounted for approximately 1 in 6 cases of sepsis during the COVID-19 pandemic. The mortality rate for patients with SARS-CoV-2-associated sepsis was initially high but declined over time.
Researchers from Karolinska Institutet challenge the hygiene hypothesis by showing that mice with high infectious exposures have a similar ability to develop allergic immune responses as laboratory mice. Despite this, they developed strong signs of pathological inflammation and allergic responses when exposed to allergens.
A study by Washington State University researchers found epigenetic alterations associated with elk treponeme-associated hoof disease, suggesting a systemic impact. The findings also suggest that the disease may be heritable, raising concerns about its transmission and susceptibility.
Researchers developed an integrated microfluidic chip for rapid antimicrobial susceptibility testing from positive blood cultures, reducing diagnosis time to under 3.5 hours. The chip demonstrated high accuracy in diagnosing clinical cases with a 93.3% agreement rate.
Researchers at Linköping University develop a new method to deliver strong compounds specifically to bacteria, allowing for efficient and safe treatment of infections. The TOUCAN strategy uses nucleases to target bacterial DNA, reducing side effects associated with current antibiotics.
A new study found that most C. diff infections are caused by characteristics associated with the patient themselves, not hospital transmission. Researchers analyzed fecal samples from over 1,100 ICU patients and discovered only six genomically supported transmissions during a nine-month period.
Researchers at HKU introduce a novel dual Trojan Horse strategy to combat antibiotic-resistant bacteria by mimicking iron uptake. This approach enhances the effectiveness of sideromycins and prolongs their lifespan, offering hope in the fight against superbugs.
Researchers found that AvrE/DspE family proteins, used by plant pathogens to cause disease, fold into a straw-like structure with a water channel. This discovery could lead to the development of new methods to disarm these proteins and prevent crop damage.
A study of 300,000 sepsis admissions found that the condition is more prevalent than previously thought, but many patients survive. The observed increase in cases is largely due to more people developing sepsis repeatedly, rather than dying the first time they contract it.
Researchers at RMIT University have developed a nano-thin superbug-slaying material effective against drug-resistant bacterial cells. The black phosphorus-based nanotechnology achieved comparable results to antibiotics in eliminating infection and accelerating healing.
Researchers at UNIST developed a microfluidic system to process blood into artificial tissue scaffolds for vascular regeneration. Autologous blood-based implants demonstrated superior wound closure rates, increased epidermis thickness, and enhanced collagen deposition in rodent skin wounds.
Researchers have found that certain strains of Klebsiella pneumoniae are more likely to survive in blood and serum than others, while neutrophils are less effective at killing them. The study suggests a vaccine approach for prevention/treatment of infections may be feasible.
A new study found that antibiotics promote the growth of antibiotic-resistant bacteria in the gut by providing extra nutrients, allowing these 'bad' bacteria to multiply. The research suggests that targeting beneficial bacteria can help restrict the growth of resistant bacteria, paving the way for microbiome therapeutics treatments.