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Tag: "venom" at biology news

Spider Venom Could Yield Eco-Friendly Insecticides

...dly to humans and insects -- is an ideal source of venom for King's research. The spider "cooperates" by re...ing it relatively easy for researchers to aspirate venom directly from its fangs. Since Australian funnel-web spiders can live for more than five years in ca...

Venom doc tracks down snake bioweapons

...va protein repertoire. To date, 24 different snake venom toxins have been characterized by scientists, but ...cific protein. "The wide-ranging origins of snake venom toxin - body counterparts explain the amazing diversity of ways that venomous snakes can kill their ...

Researchers reveal secrets of flying snakes

...lassified as harmless. 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. Whether or not the snake's choice of prey is related to its gliding ab...

Researchers find first evidence of venom system in extinct mammal

... is the first evidence of an extinct mammal with a venom delivery apparatus. The research will be published...s have been much more flexible in the evolution of venom delivery systems than previously believed," said Fox, who works out of the Laboratory for Vertebrate...

Molecular miners find pain relief drugs from the sea

... in 2003 while studying the toxins produced in the venom of Conus victoriae, a marine cone snail found in t...f the coast of Australia. All cone snails produce venom which they use to paralyse prey before killing and eating them. The venom of some cone snails is tox...

Evolution mystery: Spider venom and bacteria share same toxin

...ty of Arizona. The toxin is uniquely found in the venom cocktail of brown or violin spiders, including the...n some Corynebacteria. The toxin from the spider's venom can kill flesh at the bite site; the bacterium causes various illnesses in farm animals. "Our resea...

Taipan venom no snake oil

Australian snakes' venom could provide the next generation of human therapeutic drugs. A blood-clotting protein in taipan venom has been identified by Queensland University of Technology PhD researcher Liam St Pierre to rapidly ...

Stanford snake venom study shows that certain cells may eliminate poison

...es side with the victim, at least in four kinds of venom that were used in their experiments. Their finding...by allergens, it seemed plausible that introducing venom into the body would trigger a similar response. But Galli and Martin Metz, MD, a postdoctoral schola...

Radioactive scorpion venom for fighting cancer

...op a promising new therapy for brain cancer. The venom of the yellow Israeli scorpion preferentially atta...d TM-601, it contains an artificial version of the venom protein, attached to a radioactive substance called iodine-131 (I-131). When it enters the bloodstr...

Gatekeeping: Penn researchers find new way to open ion channels in cell membranes

Using an enzyme found in the venom of the brown recluse spider, researchers at the University of Pennsylvania School of Medicine have discovered a new way to open molecular pores, called ion channels, in the membrane of cells. The research team ?Zhe Lu, MD, PhD; Yajamana Ramu, PhD; an...

Looking to a new era in bee research

... These papers cover the genetic bases of honey bee venom allergens, along with mechanistic insights into the remarkable longevity of queen honey bees and sperm stored in the spermatheca. The HBGSP has united a broad range of scientists, from leaders in human genomics and bioinformatics to members of di...

New biochip helps study living cells, may speed drug development

...ins work by blocking these channels, including the venom of certain snakes and strychnine. Porterfield's chip is technically classified as a "cell electrophysiology lab-on-a-chip." The device is further described in an article in the journal Sensors and Actuators, published online this month and schedu...

Tarantula venom and chili peppers target same pain sensor

... and chair of physiology at UCSF. The tarantula venom targets the heat sensor on nerve cells known as th...entified three protein subunits or peptides in the venom that targeted the receptor to cause pain. They also showed that venom from a second spider activated...

One-of-a-kind imaging probe reveals secrets useful for drug discovery

...ts have unlocked secrets hidden in tiny amounts of venom taken from spindly insects called common two-strip...d hundreds of milkings to get enough walking stick venom for analysis. We were able to get great data from just one milking." Researchers at the McKnight Br...

Scientists use nanoparticle to discover disease-causing proteins

A complex molecule and snake venom may provide researchers with a more reliable metho... that was delivered to specific proteins in living venom cells from a rattlesnake. The scientists want to find a better way to ascertain the presence, concen...

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