Articles tagged with Toxins
A Virginia Tech research team has created a microelectromechanical system to detect trace amounts of toxins in breath on the parts per billion scale. The study aims to monitor patient exhaled breath to identify and quantify environmental exposure risks, providing valuable data for limiting harmful contaminant exposure.
Researchers have identified a toxin called SElX released by MRSA that triggers an extreme immune response. By targeting this toxin, it may be possible to prevent severe infections and high fever associated with MRSA.
Researchers at the University of Gothenburg have created an anti-fouling coating that prevents barnacles from forming colonies, using macrocyclic lactones to shut down their growth. The coating is environmentally friendly and can fully replace copper-based coatings in use on boats.
A team of researchers led by Professor Rikard Blunck has discovered the molecular mechanism behind toxin proteins engineered into food to kill insects. The study uses a novel technique involving fluorescent light to analyze the protein's structure and behavior in artificial cell membranes.
Researchers identify a molecular process by which human cells can neutralize toxins released by Clostridium difficile, offering a promising new treatment for intestinal disease. The discovery could also be applied to other bacterial diseases and has the potential to revolutionize the treatment of hospital-acquired infections.
Researchers have identified a key mechanism used by intestinal cells to defend against Clostridium difficile infections. A previously unknown protective response, known as nitrosylation, can be exploited to prevent toxin-induced cell damage.
A new University of Utah study reveals that woodrats that eat a variety of toxic plants can limit their toxin intake more effectively than those that specialize in one plant. By increasing time between meals, reducing meal size, and drinking more water, generalist woodrats regulate their toxin exposure.
Researchers discovered that many proteins are required for maximum toxicity of ricin and PE, with differing requirements at multiple levels. Understanding toxin trafficking may lead to designing treatments targeting these toxins and potential synergistic therapies.
A group of scientists reviewed nine trials involving 503 participants and found no evidence that Botulinum toxin injections reduce chronic neck pain. The study suggests that further research is needed to clarify whether the dose can be optimized for neck pain.
Researchers identified a rare O104:H4 strain that combined Shiga toxin-producing ability with enteroaggregative E. coli adherence, explaining its high virulence and unusually severe HUS cases. The strain also showed extended-spectrum ß-lactamase resistance, making it resistant to penicillins but susceptible to carbapenems.
A randomized, double-blind study compared the efficacy of botulinum toxin type A (onabotulinumtoxinA) and B (abobotulinumtoxinA) in reducing crow's feet wrinkles. AbobotulinumtoxinA was found to produce a greater effect when participants contracted their muscles, but no significant difference was seen at rest. The study suggests that a...
A potent toxin, ciguatoxin, has been discovered in Hawaiian monk seals, posing a significant threat to their dwindling population. The toxin accumulates in fish consumed by humans and causes acute gastrointestinal and neurological illness.
A recent study published in the American Journal of Physiology found that prenatal exposure to thirdhand smoke can have as serious or even more negative impacts on an infant's lung development than postnatal or childhood exposure. Pregnant women should take precautions to avoid homes and places where thirdhand smoke is likely to be found.
A new study from Monell Center reveals that bitter taste can cause people to report nausea and display stomach activity similar to actual nausea. The body anticipates the consequences of food we eat, responding to toxic tastes with a protective mechanism.
A recent study published in Current Biology reveals that the taste of something extremely bitter can cause nausea and stomach churning, regardless of whether it's swallowed. The researchers found that the body anticipates toxins or anti-nutrients and prepares for them by responding with nausea and stomach contractions.
Researchers have discovered a unique antibody from llamas that can interfere with the toxins produced by Clostridium difficile, a health problem affecting hundreds of thousands of patients worldwide. This discovery promises to provide a much-needed alternative treatment option for this increasing healthcare problem.
Researchers at Emory University School of Medicine found that a protein called MEF2D plays a key role inside mitochondria in brain cells, and its impairment is linked to Parkinson's disease progression. The study suggests that problems with MEF2D could represent one of the earliest steps in neurodegeneration.
Scientists have developed a key advance toward a fast, simple test to detect the toxin that causes cholera. The new method uses specially prepared nanoparticles coated with dextran to bind to specific characteristics of the cholera toxin receptor, allowing for easy detection.
Researchers at the University of Central Florida have developed a technique to detect cholera toxin using a complex sugar and nanoparticles. The method could provide faster and less expensive results than current detection methods, enabling relief workers to restrict access to contaminated sources.
Researchers at Newcastle University found that honeybees can avoid toxic nectar through taste and learning, suggesting a potential factor in colony health under stress. The study highlights the importance of understanding how bees detect and avoid toxins to breed non-toxic plants.
A new technology using tiny protozoa to detect toxins in water sources may provide unprecedented assessment of the world's water supplies. The Swimming Behavioral Spectrophotometer (SBS) can detect chemicals, pesticides, and biological warfare agents with near-instant feedback.
A groundbreaking study by Professor Douglas Kell found that poorly-bound iron causes the production of hydroxyl radicals, leading to degenerative diseases. Purple fruits and green tea are identified as excellent sources of iron chelators, which can bind iron tightly.
Researchers have isolated P450 compound I, a highly reactive chemical species involved in human metabolism of pharmaceuticals, enabling larger-scale studies to understand its chemical reactions. This breakthrough has significant implications for medicine and basic chemistry, driving research into specificity control.
Research in Tanzania found a significant association between fumonisin exposure and stunting/underweight in infants, highlighting the need for food screening. The WHO maximum tolerable daily intake is often exceeded, especially with maize-based complementary foods.
Researchers at Brown University have discovered a couple of prime suspect genes, MqsR and MqsA, that control the formation of biofilms by regulating persister cell growth. The investigation provides a new avenue for developing novel sets of antibiotics targeting these proteins.
Researchers found that Mexican cavefish exposed to a natural fish toxin developed resistance, passing tolerant genes to offspring. This adaptation was triggered by an indigenous ritual that was discontinued due to government pressure, revealing the power of natural selection in response to human activity.
Researchers have identified a potential new drug combination for treating diffuse large B cell lymphoma and found potential therapeutic targets for Noonan syndrome. The combination of an inhibitor of BCL6 with either an HDAC protein or Hsp90 protein showed enhanced killing of cancer cells in vitro and potent suppression of tumor growth...
Millions in China's Guizhou province suffer from fluorosis due to air pollution from burned coal, leading to dental problems and joint pain. The Chinese government has implemented programs to improve ventilation in homes and reduce particulate matter.
A study found that botulinum toxin treatment reduced drooling in children with cerebral palsy and other neurological disorders by an average of 50% after two months. The treatment's effects lasted for approximately 22 weeks, with some patients experiencing continued relief up to one year.
Case Western Reserve researcher Menachem Shoham discovered new anti-pathogenic drugs that prevent MRSA's production of toxins, rendering the bacteria harmless. The drugs block the activation of a key bacterial protein, AgrA, preventing toxin release and serious infections.
A USGS study found that taste-and-odor compounds are commonly associated with cyanotoxin presence, highlighting the need for increased surveillance and public alert systems. Cyanotoxins can be poisonous to people, aquatic life, pets, and livestock, causing symptoms like skin rashes, stomach upset, seizures, or death.
A man-made chemical enzyme has been used to neutralize glycoside esculin, a toxin found in horse-chestnuts, demonstrating the feasibility of 'Chemzyme' technology. The artificial enzyme's resilience and designability make it a promising solution for various industrial applications.
A USDA study uses near infrared light technology to quickly evaluate individual kernels of wheat and barley for resistance to scab disease. This allows breeders to rapidly select for resistant varieties, minimizing yield losses and promoting international food security.
A randomized controlled trial of 48 patients found that botulinum toxin injections significantly reduced pain at rest and during maximum pinch, but resulted in a decline in maximum strength. Precise measurement of each patient's forearm length guided the injection site, providing effective management of chronic tennis elbow.
Researchers have discovered two compounds that allow cells to survive attacks from ricin and Shiga-like toxins, rendering them immune to these deadly threats. These compounds work by blocking the toxins' escape via cellular components, providing potential countermeasures against bioterrorism.
Researchers discovered that algae, specifically Karlodinium veneficum, emits toxins to stun and immobilize its prey, which could lead to new ways to slow bloom growth. By reducing nutrient load and promoting filter feeders like the Eastern oyster, blooms may be reduced.
A combination of two fully human monoclonal antibodies shown to reduce Clostridium difficile (C. difficile) infection recurrence by 72%. The treatment resulted in a significant reduction in disease relapse, offering new hope for patients battling this debilitating condition.
A strip of paper infused with carbon nanotubes can quickly and inexpensively detect microcystin-LR, a chemical compound produced by cyanobacteria, found in nutrient-rich waters. The biosensor works by measuring the electrical conductivity of the nanotubes in the paper, changing their conductivity when the toxin is present.
UCI scientists identify protein PT as the key to making aflatoxin, a toxin produced by mold on nuts and grains that can cause liver cancer. The discovery could lead to methods of limiting its production and developing new inhibitors to prevent liver cancer.
Researchers at Clemson University found evidence that toxin-producing algae played a deadly role in mass extinctions. The scientists analyzed ancient algal deposits and found that these algae were present in sufficient quantities to kill off plants and animals.
Researchers have discovered that sponges soaked in Botox can effectively treat intrinsic rhinitis, a condition affecting millions of people. The minimally invasive application method resulted in improved symptoms and a long-lasting reduction of nasal hypersecretion.
The 'Dust Alert' sensor measures dust, pollen, and toxins in the air, providing real-time contamination levels and precise chemical composition analysis. This invention can help improve air quality, mitigate health risks, and provide critical information for urban planners.
Researchers at Iowa State University are exploring a new method of controlling soybean aphids without using chemical pesticides. They aim to genetically modify soybeans to produce a toxin that is lethal to aphids but harmless to mammals.
A new optoelectronic nose can detect and identify 19 toxic industrial chemicals, including ammonia and sulfur dioxide, in a matter of seconds. The wearable sensor uses a disposable array with 36 dyes that change colors when exposed to different chemicals.
Researchers have identified novel bacterial strains capable of breaking down microcystins, a toxin produced by blue-green algae. These bacteria can be used to create a reliable and cost-effective purification system for removing microcystins from contaminated water.
A new study finds that garlic mustard's fungus-killing toxin levels decrease over time, undermining its invasive advantage. This decline enables native plants to return and outcompete the invasive species.
Researchers have enhanced a technique using algae as sentinels to detect toxins in municipal water supplies, showing broader applications and real-world results. The technology can be applied across various environments, even when algae are starved for nutrients.
Researchers will analyze toxic chemicals' impact on human health and potential causes of serious diseases like Parkinson's and Alzheimer's. The three-year project uses zebrafish and mouse models to speed up testing and provide new information on chemical risk assessment.
Researchers found a potent staph toxin responsible for disease severity and its connection to antibiotic resistance. The study identified the gene encoding the toxin, which is transmitted through horizontal gene transfer.
Researchers at McMaster University developed a method for printing toxin-detecting biosensors on paper using an inkjet printer, utilizing lateral flow sensing technology. The sensors retain enzyme activity for months, making them suitable for monitoring environmental toxins and detecting diseases in remote settings.
A study published in PLoS Biology reveals that fruit flies can detect and avoid the plant toxin L-canavanine using a modified glutamate receptor called DmXR. This detection is crucial for their survival, as consuming the toxin can lead to reproductive failure.
A new NIST assay using a 'glow or no glow' technique can detect ricin, a lethal toxin, at low doses and measure its potency with high precision. This standardized sample will aid in the accuracy of detection equipment and decontamination procedures.
Researchers at University of Western Ontario discovered that superbugs like Staphylococcus aureus can manipulate the immune system to prevent toxic shock syndrome. The study identifies a mechanism by which the bacteria bind to immune cells and produce an anti-inflammatory protein, allowing them to evade the host's defense.
A study by PNNL researchers found that smoldering fires produce more toxins than wildfires, which can affect aquatic and terrestrial ecosystems. The discovery also suggests that smoke may play a role in transporting biologically useful nitrogen through the environment.
A MSU researcher has developed a working vaccine for Enterotoxigenic E. coli, responsible for 60% of all E. coli diarrheal disease. The vaccine could save untold lives and also provide relief from post-operative complications such as paralytic ileus and urinary retention.
A study published in Molecular Ecology found that woodrats have genetic detoxification genes that enable them to consume creosote bushes, which are coated with a toxic resin. The researchers also discovered that these animals adapt their diets in response to climate change, and the findings may provide insights into how humans can modi...
Clostridium perfringens produces a potent toxin that promotes tissue damage, inflammation, and heart effects, posing significant risks to poultry and diabetic individuals.
A new type of botulinum toxin, Reloxin, has been found to be well-tolerated and effective in reducing moderate to severe forehead lines over a period of 13 months. The study involved 1,200 patients who received low doses of the toxin, with minimal side effects reported.
NRL researchers have developed a forceful new method to detect proteins with unparalleled sensitivity and simplicity. The approach can identify as few as 35 attomolar concentrations in under 10 minutes, making it ideal for medical diagnostics, food testing, and national security.
Researchers uncover way to genetically modify Clostridium difficile and solve mystery surrounding its toxicity, revealing toxin B as the cause of severe disease. The discovery has the potential to save lives and healthcare systems billions of dollars annually.