Articles tagged with Venom
Researchers discovered that mast cells release protein MCPT4, degrading Gila monster venom helodermin, reducing morbidity and mortality. This mechanism also applies to scorpion venom, providing a natural defense against deadly toxins.
The US Food and Drug Administration approved Anascorp, a scorpion antivenom produced in Mexico, to treat patients suffering from scorpion sting. The drug was tested in clinical trials conducted through the University of Arizona and showed dramatic results in alleviating symptoms and reducing scorpion venom levels.
Research suggests that venom-targeted proteins evolve rapidly in mammals that eat snakes, implying a defensive role for venom. This finding contradicts the traditional view that venom evolves as a feeding adaptation.
Researchers developed an affordable antivenom against the Papuan taipan, a lethal snake, to address chronic shortages in developing countries. The project demonstrates the potential of international cooperation in producing high-quality antivenoms at an affordable price.
Researchers investigated snake venom's surface tension and viscosity, discovering that these properties facilitate the venom's entry into wounds. The team found that snakes developed optimal fang groove geometry and a special property of their venom to allow for efficient delivery of deadly poison.
Michigan State University researchers found that scorpion venom selectively targets insect sodium channels, making it a valuable tool for developing new insecticides. The study aims to understand how insects develop resistance and create alternatives to control resistant pests.
According to a new review article from the Journal of the American Academy of Orthopaedic Surgeons, getting to a hospital quickly is the best thing to do if you are bitten by a snake. Current medical treatments, including new medications and surgery, are far more effective than anything that can be done at home.
Researchers have discovered how cone snails inject their venom after shooting a harpoon-like tooth into their prey. The venom is produced in the venom duct and pumped through by rapid contractions of the venom bulb, which also contains specialized muscles.
Researchers found that inhibiting platelet protein CLEC-2 may combat irregular blood clotting and cancer spread. The discovery paves the way for new research on platelets' role in both conditions.
Researchers have collected venom from Antarctic octopuses for the first time, discovering four new species and uncovering unique properties. The study provides insight into the adaptation of venom to sub-zero temperatures, which could lead to breakthroughs in pain management, allergies, and cancer treatment.
Zoltan Takacs, a herpetologist and toxinologist, has been named National Geographic Emerging Explorer for 2010. He develops toxin-based drugs from venomous snake toxins, which have the potential to treat various diseases including cancer, circulatory disorders, and autoimmune diseases.
Researchers discovered that spitting cobras initially track an aggressor's movement, but then switch to predicting where the victim will be 200ms in the future. The snakes use this information to fine-tune their venom spray and hit their target with accuracy.
Researchers studied scorpion venom's effects on cell release mechanisms, finding a protein production system targeted by the venom that may lead to pancreatitis. The study suggests potential treatments for viruses and advances in chemotherapy through targeted drug delivery.
A novel protein named haditoxin has been identified in King Cobra venom, showing promise for new drug discovery and advancing our understanding of disease mechanisms. The protein's unique structure suggests it may offer insights into treating various neurological disorders.
Researchers have identified a dozen protein building blocks in the venom of male platypuses, which cause excruciating pain. The study's findings suggest that one of these substances, Heptapeptide 1, triggers pain by interacting with nerve cell receptors.
Prof. Michael Gurevitz's research isolates genetic sequences for neurotoxins in scorpion venom and develops methods to produce and manipulate toxins for restricted toxicity in certain insects or mammals. This work paves the way for a new, ecologically sound pest control method.
Educating communities on snake bite prevention is crucial, but antivenom treatment needs improvement. Improper training and use of antivenom can lead to fatal complications.
A team of researchers from Kansas and China have discovered a venomous, birdlike raptor that lived 128 million years ago in China. The discovery sheds new light on the evolution of modern birds and the tactics used by their ancient ancestors.
A new study reveals that at least 1,250 and possibly more venomous catfish species exist, with North American species using their venom mainly to defend against predatory fish. The research also sheds light on the evolutionary origins of catfish venom glands.
A recent study by Jeremy Wright has catalogued the presence of venom glands in 158 catfish species, suggesting that at least 1250 and possibly over 1600 species may be venomous. Catfish venoms are neurotoxic and hemolytic, causing severe pain, muscle spasm, and respiratory distress.
Researchers have unraveled the evolutionary relationships among various species of box jellyfish, providing insight into their toxicity. The study could help develop antivenoms and treatments for deadly stings.
Researchers at Harvard University found that similar molecular changes turned a harmless digestive enzyme into a toxin in two unrelated species, a shrew and a lizard. The study suggests that protein adaptation may be a highly predictable process, potentially leading to the discovery of other toxins across various species.
Scientists have discovered that the venom of isolated Florida cottonmouth snakes may differ from that of mainland snakes due to their diet of dead fish dropped by seabirds. A new technique for collecting venom, using a portable nerve stimulator, has also been developed as part of this study.
Researchers discovered that Yellow-lipped Sea Kraits deceive predators by twisting their tails to resemble a second head, complete with venom. This false-head behaviour is an overlooked anti-predator adaptation that helps sea snakes survive in the ocean.
Researchers have discovered nine novel poison molecules in the venom of the Scorpiops jendeki scorpion, expanding knowledge of scorpion venoms. The study found ten known types of poisons with diverse modes of action, offering a rich resource for drug development.
A University of Michigan study found that snails' venoms evolved to target a broader array of prey when they experienced ecological release, allowing them to expand their diet and habitat. The research provides insight into the genetic basis of this phenomenon and its implications for our understanding of adaptation and evolution.
A new study has shown that Komodo Dragons' effectiveness lies in their unique combination of serrated teeth and venom. The venom was found to be rich in toxins that prolong bleeding and induce shock in victims, allowing the dragons to weaken and immobilize their prey.
Researchers uncover Komodo dragons' venom composition, which combines teeth and venom for lethal effects, contradicting earlier theories. The venom causes severe blood loss, inducing shock in victims.
A new study by researchers from the University of Melbourne and others has found that all octopuses possess venomous capabilities, with a common ancient ancestor producing specialized proteins. The team's findings also highlight the importance of cephalopod venoms in drug development for conditions such as pain management and allergies.
A new study reveals that spitting cobras create complex geometric patterns of venom when striking, which are actively produced by the snake's muscles. This allows them to hit their targets with remarkable precision, making contact with an attacker's eyes where it causes severe pain and possibly blindness.
A study discovered three-finger toxins in a rare rattlesnake subspecies, while a novel toxin gene was found through gene fusion. This discovery reveals the complexity of snake venom composition and its potential for developing new therapeutic agents.
Research published in BMC Evolutionary Biology shows that a snake's intended prey affects the type and evolution of toxins in their venom. The study found that sea snakes have less diverse toxins due to their shared feeding behavior and diet.
A randomised trial found that Ancrod was not effective in treating ischaemic stroke when administered within 6 hours of symptom onset. The study highlights the importance of timely treatment in stroke care and suggests that Ancrod may only be beneficial if given within a 3-hour window.
Nuno Bandeira's award-winning protein analysis technique allows scientists to study highly modified proteins in snake venom, potentially leading to breakthroughs in drug development and cancer research. The technique surpasses current methods by providing a completely automated approach to identify amino acid sequences and modifications.
Researchers discovered that tarantula venom activates the same nerve cells responsible for sensing heat and pain, similar to chili peppers. The study provides insights into the molecular strategy used by some plants and animals to deter predators and may lead to the development of new pain treatments.
Researchers have developed a highly sensitive NMR probe to analyze small samples, unlocking volumes of information from tiny amounts of venom. This breakthrough could aid in finding natural substances for medicines and advance understanding of Alzheimer's disease.
Researchers at Stanford University School of Medicine found that mast cells in the immune system can break down and neutralize certain types of snake venom, enhancing resistance to its toxicity. This counterintuitive discovery challenges the long-held assumption that the immune system exacerbates snakebite symptoms.
Scientists suggest that primates evolved good close-up eyesight to avoid snakes, which were the primary predators of modern mammals. Fossil records show that snakes emerged around 100 million years ago, prompting primates to adapt their vision.
Researchers have developed a radioactive version of scorpion venom that targets and kills glioma cells, offering a promising new treatment for high-grade brain cancer. The therapy involves injecting the compound into patients, which releases radiation to kill the tumor cells.
A new study published in PLOS Medicine found that patients who receive randomly assigned treatments in clinical trials have similar health outcomes as those receiving individualized treatment. The researchers analyzed data from 25 trials involving nearly 18,000 patients and found no significant differences in health outcomes between th...
Researchers discovered a unique toxin shared by spider venom and certain bacteria, suggesting lateral gene transfer between the two. The study's findings may lead to developing treatments for brown recluse bites and corynebacterial toxins.
A comprehensive genetic analysis of snakes, lizards, and other scaly reptiles has revealed surprising relationships among the animals. The study places primitive-looking iguanian lizards at the top of the tree, near advanced lineages like snakes and monitor lizards.
Researchers have found evidence of a venom delivery apparatus in an extinct mammal, Bisonalveus browni, dating back 60 million years. The discovery suggests that mammals have evolved more flexible venom systems than previously thought.
Researchers found that 21 snake venom toxins originated from proteins in various body tissues, including brain, eye, and liver. This discovery sheds light on the evolution of these potent toxins and their potential use in medical research.
Researchers found that children who received venom allergy shots had significantly fewer life-threatening reactions when restung, even years later. Dr. Rebecca Gruchalla recommends the shots for kids with severe allergic reactions to insect stings, which are responsible for at least 40 fatal stings per year.
A study found that children who received venom immunotherapy for moderate to severe allergic reactions had a lower risk of future reactions, including those with no prior treatment. The therapy was shown to last for up to three and a half years, making it an effective long-term solution for managing bee sting allergies.
A study found that a component of snake venom can help remove stubborn bloodstains from clothes, with fibrinolytic enzymes facilitating the breakdown of blood protein fibrin. Researchers successfully tested the enzyme on blood-stained denim swatches, showing significantly fainter stains after treatment.
Research finds that snake venom evolved only once in evolution, around 60 million years ago, and is now found in virtually all advanced snakes. A study of over 2,000 snakes from around the world has discovered that many non-venomous species possess complex venoms.
A study found that venom immunotherapy significantly reduced the risk of severe systemic reactions to jack jumper ant stings in healthy adults. The treatment was effective in preventing life-threatening reactions, even in those who had previously experienced severe symptoms.
Researchers at the University of Melbourne have developed a new compound, ACV1, derived from cone shell venom that is more powerful and longer-lasting than morphine. The compound has shown promising results in laboratory studies, treating pain by blocking transmission along peripheral nervous systems without addictive side effects.
Two new studies introduce a reliable assay to detect brown recluse spider venom in patients, reducing the need for invasive biopsies. The assay detects venom in hair, fluid from wounds, and skin biopsies, improving diagnosis accuracy and avoiding misidentifications.
A new neuroactive chemical, HF-7, isolated from spider venom may block overproduction of neurotransmitters causing brain damage after oxygen deprivation. Theoretical studies suggest HF-7 could stave off severe brain damage during short bouts of oxygen loss.
Scientists pinpoint exact spot where snake venom latches onto receptor, paving way for synthetic antidote. The new treatment could be more effective and faster-acting than current method, eliminating risk of allergy.