Tag: "venom" at biology news
New way to protect brain from stroke damage
...ed with agents known to block ASICs--including the venom
of a tarantula spider--exhibited a reduction in br... block ASICs--the drug amiloride and the tarantula venom
called PcTX--protected the nerve cells against acid-induced injury. Cells lacking ASIC1a, the calciu...
Streptococcus infects humans by thwarting blood clotting
...rchers administered a substance derived from snake venom
that degrades another clotting protein, fibrinogen, discovering that the treatment greatly increased the mice's mortality from this streptococcus infection. Streptokinase's importance to group A streptococci may generalize to many other human-specif...
Strep disrupts blood clotting to infect humans
...rchers administered a substance derived from snake venom
that degrades another clotting protein, fibrinogen, and found that it too greatly increased the mice's mortality from this streptococcus infection. To Ginsburg, who has spent much of his career studying the genetics of blood clotting and clotting di...
Nature mimics industry
...ical marine environments, produces a bromine-based venom
that is extremely toxic to people, but allows the snail to effectively immobilize and kill its prey. Gribble explains that the cone snail's particular organobromine peptide is in human clinical trials for the treatment of pain. "Sponges and tun...
Venom hunt finds 'harmless' snakes a potential danger
...earch. Dr Fry is fascinated by venomous snakes and venom
evolution. Last year he set off on a worldwide he...cal adventure to track down when and in what snake venom
first evolved. The result was the ground-breaking discovery that snake venom
developed only once in...
Roderick MacKinnon wins 2003 Nobel Prize in Chemistry
... exquisitely specific toxin isolated from scorpion venom
binds to the fly Shaker channel and mammalian potassium channels just as tightly as it does to the bacterial potassium channel. Because scorpion toxins are known to fit the channels they block exactly, like a lock and key, this suggests that the bact...
Study calls for cheaper antitoxins for plant poisoning in less-developed countries
...itoxins for plant poisoning and antidotes to snake venom
should be included in the global drive to reduce costs and increase access to drugs in less-developed regions of the world, conclude authors of a research letter in this week's issue of THE LANCET. Oleander self-poisoning is common in Sri Lanka-espec...
Jaws of clamworm are hardened by zinc say UCSB scientists
...loodworm, has copper-containing fangs which inject venom
into its live prey. This discovery was a surprise since copper has never been found in such concentration in an organism. The copper fangs of the bloodworm were found to have a resistance to abrasion that is comparable to that of a human tooth, and g...
Red Imported Fire Ant Conference to discuss control and eradication of fire ants
... bite and sting its victim repeatedly, injecting a venom
that causes a burning sensation at first (hence the name "fire ant") and a pustule later. These ants may also attack pets, livestock, and wildlife. "The Red Imported Fire Ant represents an important threat to quality of life, agriculture, and our na...
Bloodworm's way with copper likely provides paradigm for new materials
...pper on the surface of the jaw canal through which venom
is injected. That copper may be acting as a catalyst that activates venom
being discharged by the worm into its prey. The authors include University of California Biology Pro...
U of C researcher tracks path of flying snake
...f they get the chance). Flying snakes secrete mild venom
that is only dangerous to their small prey. They a...e that runs along the fang's outer edge, where the venom
drips down and into the prey. Much is still not known about flying snakes, such as their predators, ...
Snail venom heralds new era of pain treatment
...om the University of Melbourne, made ACV1 from the venom
of a cone shell for biological testing. They will ...specimen. "Not all species will kill a human. The venom
of some species obviously has useful properties. There are a number of research groups around the w...
New methods for detecting brown recluse spider venom
... to accurately test for the presence of the spider venom
in a patient who was possibly bitten. Emergency ph...ped Loxosceles ELISA assay, the investigators find venom
is detectable in hair, fluid from the wound and in skin biopsies in an animal model at least seven d...
Australian frog is first to make its own chemical weapons
...le snakes and other vertebrates can make their own venom
or poison, these materials are made of toxic proteins or other chemicals, not alkaloids, Daly said. One class of alkaloids is found only in Australian frogs of the genus, Pseudophryne. Dalys group isolated and determined the structure of this uniqu...
Relative of snake venom toxin may aid in understanding nicotine addiction
...entists have found that a protein resembling snake venom
neurotoxin modulates the sensitivity of specific r...a natural, or endogenous, protein resembling snake venom
that could affect the nervous system. At the time the discovery was made, such an assumption was sci...
Worlds largest scientific society convenes regional meeting September 23-26 in Savannah
...quality of the Ocmulgee River Pygmy rattlesnake venom
and its use to treat snake bites Benefits of gingko tree leaves Landmark designation of the Savannah Paper and Pulp Company General chair is George Novotnak, Georgia Southern University, Statesboro (912-897-5595 or 912-308-2107), and program c...
University of Ulster spearheads giant leap forward in medicine
...igating the medical properties of rain forest frog venom
for several years. They use very mild electrical s...timulation to encourage the frogs to secrete their venom
which is then broken down into its component parts in the hi-tech laboratory. After screening the ve...
The biological and toxin weapons convention an analysis
... used as weapons, these include: the production of venom
toxins in genetically modified bacteria, creating antibiotic resistant superbugs, producing microbes that can not be detected using current diagnostic tests. The authors recognise the importance of an international prohibition regime, which they beli...
Researchers gain better understanding of deadly autoimmune heart ailment that affects young adults
... causes myocarditis. Some of mice were given snake venom
to deplete complement. None of the mice depleted of complement developed any signs of myocarditis, while four out of six control mice developed the disease. During the experiments, the researchers also determined that two cell receptors, CR-1 and C...
Can a deadly spider replace chemical pesticides?
...cently identified a unique family of toxins in the venom
of a funnel-web spider. These neurotoxins are lethal when injected into insect tissues, yet have no effect if eaten by insects or other animals (Nature Structural Biology, vol 7, p 505). King's team is now engineering the gene for one of these toxin...