Articles tagged with Poisons
Two new species of poisonous birds have been discovered in New Guinea's rainforest, containing a neurotoxin similar to that found in South American poison dart frogs. Genetic changes in these bird species allow them to tolerate and store the toxin in their feathers, potentially serving as a defensive mechanism.
More than half of all reported poisonings affect children ages 5 and younger, with opioids responsible for over half of fatal poisonings. Opioids have contributed to a significant increase in child poisoning deaths despite regulation measures.
Pediatric hospitalizations for cannabis poisonings increased significantly in provinces with legal edible cannabis sales compared to those without. The study highlights the need for regulatory measures to mitigate risks associated with recreational cannabis legalization.
Researchers identified a single protein, FETUA-3, that inhibits a broad spectrum of rattlesnake venom toxins. The discovery may lead to the development of improved snake bite treatments and novel therapeutic options.
A study published in PLoS Genetics reveals the mechanism by which a selfish gene in yeast, wtf4, enables its function using a poison-antidote strategy. This strategy involves the production of poison protein that can kill spores, but is countered by an antidote protein produced only by those spores that inherit the drive allele.
Researchers at Nagoya University discovered that grass puffer fish use a non-toxic version of their deadly toxin, TDT, to attract mates and warn off predators. The study found that TDT serves as an odorant, activating specific olfactory sensory cells in the fish's brain.
Researchers at the University of Tokyo discovered that yeast releases toxins to kill its own clones and surrounding microorganisms when starved of glucose, a phenomenon called latecomer killing. This behavior helps yeast survive mass starvation and aids in the selection of toxin-producing offspring.
A systematic review and meta-analysis found that pulse oximetry has a high false negative rate, making it inaccurate for triaging patients with suspected carbon monoxide poisoning. The researchers recommend developing alternative methods for rapid screening of carbon monoxide levels in capillaries.
Researchers discovered that ancient Maya cities in Mesoamerica were heavily polluted with mercury, contaminating the soil and water. The pollution was caused by the frequent use of mercury and cinnabar paints, powders, and other products, which leached into the environment and pose a potential health hazard today.
A study by Washington State University found a 37% drop in poisoning reports for illicit synthetic cannabinoids in states with legal recreational or
Researchers at Ben-Gurion University have discovered two defense methods in wild emmer wheat that can protect cultivated wheat from insects. The wheat produces a poison called benzoxazinoid and has a coating of 'hairs' that prevent insects from burrowing, allowing for improved pest resistance
New research from Thomas Jefferson University shows that early childhood enrichment can reverse the effects of lead poisoning on brain development. Over 3,500 genes in the hippocampus are affected by lead exposure, but approximately 80% of gene expression changes are reversed in animals living in stimulating environments.
Exotic snakebites in the UK are increasing, with 321 reported cases over 11 years, mostly affecting children under 5. Most bites result in mild symptoms, but severe cases have occurred, prompting concerns about illegal snake ownership and access to expert advice.
Researchers from the Max Planck Institute for Chemical Ecology elucidate the complete biosynthetic pathway of strychnine, a highly toxic alkaloid used as rat poison. The study reveals that the conversion of prestrychnine to strychnine occurs spontaneously, without an enzyme.
Three African vulture species have significantly larger home ranges than existing protected areas, increasing exposure to human-related food sources and environmental toxins. Conservation efforts require addressing challenges outside protected areas.
The number of US children suspected to have attempted suicide by poisoning increased by 26.7% between 2015 and 2020, according to researchers at the University of Virginia Health System. The majority of these cases involved girls, and the age group with the largest increase was children aged 10-12.
Researchers monitored mercury levels in artificial lakes to identify sources and factors affecting concentration. Most mercury originated from soil in catchment areas, with surface runoff contributing in shorter-residence time reservoirs.
Researchers at the University of California - Santa Cruz have made a breakthrough in developing an antidote for carbon monoxide poisoning. A novel treatment has been shown to rescue CO-poisoned red blood cells and rapidly clear the gas from the blood, offering new hope for victims.
A survey of veterinarians in the US and Canada reveals a significant increase in cannabis poisoning cases among pets since Canada's 2018 legalization, with most cases treated successfully. The study highlights the importance of understanding the effects of cannabis on pets to inform veterinary efforts and policies.
Scientists have proposed a new two-step methodology to eliminate polychlorinated biphenyls (PCB) from the environment. The approach involves chemical functionalization, replacing chlorine atoms with hydroxyl groups, followed by thermal destruction at lower temperatures than traditional incineration methods.
A new study from the University of Copenhagen suggests that the poison from the sea snail species Conus rolani can function as a painkiller, blocking out pain in mice for an even longer time than morphine. This discovery offers a potential alternative to addictive painkillers like morphine and opioids.
The BfR has developed a novel testing strategy to detect ciguatoxins in fish, which enables the reliable identification of seafood poisoning cases. This method combines cell-based assay tests and liquid chromatography-mass spectrometry (LC-MS/MS) for precise detection.
A dramatic increase in suicidal ingestions was reported among preadolescent children over the past two decades. The analysis of national poison data showed a significant rise in this trend, highlighting the need for increased awareness and prevention strategies.
Researchers have gained a deeper understanding of how bacteria use the type VI secretion system to develop toxins for battle. The discovery reveals that toxins are encapsulated in a capsule secured by a cork-like plug, which can be released upon mechanical force.
Chemists at Scripps Research have found that cyanide can drive metabolic reactions to create carbon-based compounds from carbon dioxide, expanding our understanding of the origins of life on Earth and its potential for existing elsewhere. This discovery opens up new avenues for searching for extraterrestrial life.
Research by UC Berkeley biologists highlights the importance of conserving harlequin toad diversity due to the loss of potential pharmaceuticals. A review of 113 species found that only 16 have been studied for toxins, and many are in decline or extinct.
A new study found that Hong Kong's remote sensing enforcement program significantly reduced harmful chemicals at the roadside and in the atmosphere. The program led to a 22-39% reduction in total hydrocarbons, carbon monoxide, and nitric oxide emissions from high-emitting vehicles.
Scientists have recorded high levels of atmospheric mercury pollution in a pristine patch of the Peruvian Amazon due to illegal gold mining. Mature Amazonian forests near gold mining are capturing huge volumes of atmospheric mercury, more than any other ecosystem previously studied.
A recent study reveals that lead poisoning from eating contaminated carcasses has reduced bald eagle population growth by 4-6% annually in the Northeast. The researchers emphasize the need for hunters to choose copper-based ammunition to mitigate this issue, which could impact other species as well.
A significant increase in emergency department visits due to cannabis exposures among children was found after Canada's recreational cannabis legalization. The study suggests that the introduction of legal edible cannabis products contributed to this trend.
Emergency department visits for cannabis poisonings in children under 10 increased ninefold after commercial cannabis edibles were legalized, with 39% requiring hospitalization. Researchers found that cannabis legalization overlapped with the COVID-19 pandemic, leading to a surge in cannabis poisoning cases.
Christmas trees and ivy are generally safe, but holly's berries contain saponins that can cause stomach upset. Pears and mistletoe should also be avoided due to cyanide and viscotoxin content. Safe options include cyclamen species, Christmas Cactus, and poinsettia.
Researchers found monarch-like genetic mutations in four organisms that eat monarchs, including the black-headed grosbeak and eastern deer mouse. These mutations help these predators tolerate the toxic milkweed toxins stored in the butterflies' bodies.
Scientists at the Max Planck Institute have uncovered how ExoY toxin becomes activated in human cells by binding to actin filaments, leading to devastating enzymatic activity. This discovery sheds light on a crucial molecular mechanism that underlies the pathogenicity of various toxins.
A recent study discovered high levels of mercury exposure in human bones from Copper Age Iberia, dating back 5000 years. Cinnabar powder used for pigments and rituals led to severe health effects, including intoxication.
A German study reveals that glyphosate and dozens of other pesticides are spreading through the air for miles into national parks and cities. The analysis was published in a peer-reviewed journal and shows that agricultural toxins like glyphosate are classified as probably carcinogenic to humans by the World Health Organisation.
A study found that 95% of fungal species on Earth remain undescribed, leading to inconsistent regulations and potential health risks. The researchers tested 16 food products labeled as containing 'wild mushrooms' and discovered most consisted of cultivated species, including poisonous varieties.
Researchers have discovered that toxic animals produce 'toxin sponges' to mop up deadly toxins and prevent them from binding to vital proteins. This alternative autoresistance strategy may offer a general means of toxin protection, including the development of antidotes against various toxic agents.
Researchers from Japan and Zambia have found a significant negative correlation between chronic lead poisoning in children and the health-related quality of life of their mothers. The study, which included 40 households in Kabwe, Zambia, showed that maternal vitality and mental health were particularly impacted by child lead exposure.
A four-fold increase in unintentional poisonings in children under 12 and a three-fold increase in ICU admissions for severe cannabis poisoning were seen after legalization. Edible cannabis products, highly concentrated and visually attractive to young children, are the primary cause of these increases.
A global assessment report by UNESCO's Intergovernmental Oceanographic Commission found that reported Harmful Algal Bloom (HAB) events have increased in some regions, while decreasing or holding steady in others. The study highlights the need for more research on the linkages between HABs and growth of the aquaculture industry.
Between 2017 and 2019, US poison centers saw a significant increase in reported cannabis-related exposures to both manufactured products and plant materials, indicating a growing need for awareness and regulation.
A recent study has identified discrepancies in World Health Organization (WHO) classifications of pesticide hazards, leading to the continued use of potentially lethal pesticides in developing countries. The researchers propose eliminating all pesticides with fatality rates above five per cent to reduce suicides.
Researchers have identified a new species of frog with unique fluorescent properties, found in Brazil. The newly discovered species is highly poisonous, posing a threat to its ecosystem.
A study examining deceased US eagles found that 82 percent had detectable levels of rat poison in their systems. The presence of these toxins was linked to mortality rates, suggesting a potential public health concern for bird populations.
A study at Tel Aviv University reveals that fireflies produce strong ultrasonic sounds that may serve as a defense mechanism against bats. The sounds are undetectable to the fireflies themselves but can be heard by bats, potentially keeping them away from poisonous fireflies.
A new study found that 46.3% of US poison control center calls involving supersized alcopops were made by underage drinkers, posing a distinct threat to youth. The study highlights the need for better regulation and policies to limit the availability of these products.
A recent study found a significant increase in high-powered magnet-related injuries in children after the ban was lifted, with cases increasing by 355% and hospitalizations rising by 39%. The study calls for stricter regulations on these products to protect children and emphasizes the importance of keeping them out of reach of young ones
A new study finds that gentle streams of water carrying sound and microscopic air bubbles can effectively clean salad leaves, reducing bacterial contamination and the risk of food poisoning. The method has implications for combating anti-microbial resistance and extending food shelf life.
A team of researchers from Harvard University has successfully evolved custom proteases that can target specific proteins with high selectivity, opening up new possibilities for neuroregeneration, growth hormone regulation, and cytokine storm treatment. The technology uses phage-assisted continuous evolution to generate bespoke protein...
Research reveals that sperm cells with the t-haplotype exhibit increased motility and competitiveness, attributed to optimal RAC1 activity. This genetic factor enables them to disable competitors while producing an antidote to protect themselves.
Between 2010 and 2017, US stimulant-associated deaths rose substantially, driven primarily by cocaine use. Medical stimulants also contributed to the increase, suggesting a broader public health concern.
Shiga toxin, produced by enterohemorrhagic E. coli (EHEC), is thought to be a killer of host cells, but new research suggests it may actually be designed to dampen the immune system instead. This unexpected role could lead to breakthroughs in treating deadly kidney disease and bloody diarrhea caused by EHEC infections.
A study found that George's Marvellous Medicine contains 34 toxic ingredients, including engine oil and antifreeze, which can cause nausea, vomiting, diarrhoea, heart rhythm problems, kidney injury, convulsions, and stomach damage. Researchers advise parents to be cautious and check medicinal ingredients for potential toxicity before use.
Researchers found that men who expected to work in jobs without a college degree but faced declines in the job market were nearly three times as likely to suffer early deaths by suicide and drug poisoning. The study suggests closed pathways to sustaining working-class jobs contribute to increased rates of suicide and drug-poisoning mor...
A coroners' analysis of two deaths found that swallowing alcohol-based hand sanitizers can kill. The public is largely unaware of the potential safety hazards, and more needs to be done to protect those at risk, such as children, people with dementia/confusion, and those with mental health issues.
African crested rats sequester plant toxins for chemical defense and form small family units, suggesting a monogamous lifestyle. The study provides insights into their social behavior and conservation implications.
A new study found poisoning exposures in children and adolescents while at school are relatively common and increasing, requiring improved safety strategies to prevent preventable poisonings. The study highlights the need for school-based initiatives and programs to make the school environment safer for students.
Researchers at ETH Zurich found a link between the increased availability of high-dose paracetamol tablets and a rise in poisoning cases. The study suggests that limiting pack sizes and promoting lower doses could help minimize accidental overdoses.
Researchers observed Small-banded Kukri Snakes dissecting Asian Black-spotted Toads alive, removing organs to consume. The snakes may have evolved this tactic to avoid being poisoned by the toad's toxin.